pinctrl: mediatek: convert most definitions to const

There exists a situation of the mediatek pinctrl driver that may return
wrong pin function value for the pinmux driver:
- All pin function arrays are defined without const
- Some pin function arrays contain all-zero value, e.g.:
  static int mt7622_spi_funcs[] = { 0, 0, 0, 0, 0, 0, };
- These arrays will be put into .bss section during compilation
- .bss section has no "a" attribute and does not exist in the final binary
  file after objcopy.
- FDT binary blob is appended to the u-boot binary, which occupies the
  .bss section.
- During board_f stage, .bss has not been initialized, and contains the
  data of FDT, which is not full-zero data.
- pinctrl driver is initialized in board_f stage, and it will get wrong
  data if another driver is going to set default pinctrl.

Since pinmux information and soc data are only meant to be read-only, thus
should be declared as const. This will force all pinctrl data being put
into .rodata section. Since .rodata has "a" attribute, even the all-zero
data will be allocated and filled with correct value in to u-boot binary.

Signed-off-by: Weijie Gao <weijie.gao@mediatek.com>

10 files changed, 898 insertions, 889 deletions

diff --git a/drivers/pinctrl/mediatek/pinctrl-mt7622.c b/drivers/pinctrl/mediatek/pinctrl-mt7622.c
index bf4e9a2..114f260 100644
--- a/drivers/pinctrl/mediatek/pinctrl-mt7622.c
+++ b/drivers/pinctrl/mediatek/pinctrl-mt7622.c
@@ -233,283 +233,285 @@ static const struct mtk_pin_desc mt7622_pins[] = {
  */
 
 /* EMMC */
-static int mt7622_emmc_pins[] = { 40, 41, 42, 43, 44, 45, 47, 48, 49, 50, };
-static int mt7622_emmc_funcs[] = { 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, };
+static const int mt7622_emmc_pins[] = {
+	40, 41, 42, 43, 44, 45, 47, 48, 49, 50, };
+static const int mt7622_emmc_funcs[] = { 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, };
 
-static int mt7622_emmc_rst_pins[] = { 37, };
-static int mt7622_emmc_rst_funcs[] = { 1, };
+static const int mt7622_emmc_rst_pins[] = { 37, };
+static const int mt7622_emmc_rst_funcs[] = { 1, };
 
 /* LED for EPHY */
-static int mt7622_ephy_leds_pins[] = { 86, 91, 92, 93, 94, };
-static int mt7622_ephy_leds_funcs[] = { 0, 0, 0, 0, 0, };
-static int mt7622_ephy0_led_pins[] = { 86, };
-static int mt7622_ephy0_led_funcs[] = { 0, };
-static int mt7622_ephy1_led_pins[] = { 91, };
-static int mt7622_ephy1_led_funcs[] = { 2, };
-static int mt7622_ephy2_led_pins[] = { 92, };
-static int mt7622_ephy2_led_funcs[] = { 2, };
-static int mt7622_ephy3_led_pins[] = { 93, };
-static int mt7622_ephy3_led_funcs[] = { 2, };
-static int mt7622_ephy4_led_pins[] = { 94, };
-static int mt7622_ephy4_led_funcs[] = { 2, };
+static const int mt7622_ephy_leds_pins[] = { 86, 91, 92, 93, 94, };
+static const int mt7622_ephy_leds_funcs[] = { 0, 0, 0, 0, 0, };
+static const int mt7622_ephy0_led_pins[] = { 86, };
+static const int mt7622_ephy0_led_funcs[] = { 0, };
+static const int mt7622_ephy1_led_pins[] = { 91, };
+static const int mt7622_ephy1_led_funcs[] = { 2, };
+static const int mt7622_ephy2_led_pins[] = { 92, };
+static const int mt7622_ephy2_led_funcs[] = { 2, };
+static const int mt7622_ephy3_led_pins[] = { 93, };
+static const int mt7622_ephy3_led_funcs[] = { 2, };
+static const int mt7622_ephy4_led_pins[] = { 94, };
+static const int mt7622_ephy4_led_funcs[] = { 2, };
 
 /* Embedded Switch */
-static int mt7622_esw_pins[] = { 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61,
-				 62, 63, 64, 65, 66, 67, 68, 69, 70, };
-static int mt7622_esw_funcs[] = { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
-				  0, 0, 0, 0, 0, 0, 0, 0, 0, };
-static int mt7622_esw_p0_p1_pins[] = { 51, 52, 53, 54, 55, 56, 57, 58, };
-static int mt7622_esw_p0_p1_funcs[] = { 0, 0, 0, 0, 0, 0, 0, 0, };
-static int mt7622_esw_p2_p3_p4_pins[] = { 59, 60, 61, 62, 63, 64, 65, 66, 67,
-					  68, 69, 70, };
-static int mt7622_esw_p2_p3_p4_funcs[] = { 0, 0, 0, 0, 0, 0, 0, 0, 0,
-					   0, 0, 0, };
+static const int mt7622_esw_pins[] = {
+	51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68,
+	69, 70, };
+static const int mt7622_esw_funcs[] = {
+	0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, };
+static const int mt7622_esw_p0_p1_pins[] = { 51, 52, 53, 54, 55, 56, 57, 58, };
+static const int mt7622_esw_p0_p1_funcs[] = { 0, 0, 0, 0, 0, 0, 0, 0, };
+static const int mt7622_esw_p2_p3_p4_pins[] = {
+	59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, };
+static const int mt7622_esw_p2_p3_p4_funcs[] = {
+	0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, };
 /* RGMII via ESW */
-static int mt7622_rgmii_via_esw_pins[] = { 59, 60, 61, 62, 63, 64, 65, 66,
-					   67, 68, 69, 70, };
-static int mt7622_rgmii_via_esw_funcs[] = { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
-					    0, };
+static const int mt7622_rgmii_via_esw_pins[] = {
+	59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, };
+static const int mt7622_rgmii_via_esw_funcs[] = {
+	0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, };
 
 /* RGMII via GMAC1 */
-static int mt7622_rgmii_via_gmac1_pins[] = { 59, 60, 61, 62, 63, 64, 65, 66,
-					     67, 68, 69, 70, };
-static int mt7622_rgmii_via_gmac1_funcs[] = { 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
-					      2, };
+static const int mt7622_rgmii_via_gmac1_pins[] = {
+	59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, };
+static const int mt7622_rgmii_via_gmac1_funcs[] = {
+	2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, };
 
 /* RGMII via GMAC2 */
-static int mt7622_rgmii_via_gmac2_pins[] = { 25, 26, 27, 28, 29, 30, 31, 32,
-					     33, 34, 35, 36, };
-static int mt7622_rgmii_via_gmac2_funcs[] = { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
-					      0, };
+static const int mt7622_rgmii_via_gmac2_pins[] = {
+	25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, };
+static const int mt7622_rgmii_via_gmac2_funcs[] = {
+	0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, };
 
 /* I2C */
-static int mt7622_i2c0_pins[] = { 14, 15, };
-static int mt7622_i2c0_funcs[] = { 0, 0, };
-static int mt7622_i2c1_0_pins[] = { 55, 56, };
-static int mt7622_i2c1_0_funcs[] = { 0, 0, };
-static int mt7622_i2c1_1_pins[] = { 73, 74, };
-static int mt7622_i2c1_1_funcs[] = { 3, 3, };
-static int mt7622_i2c1_2_pins[] = { 87, 88, };
-static int mt7622_i2c1_2_funcs[] = { 0, 0, };
-static int mt7622_i2c2_0_pins[] = { 57, 58, };
-static int mt7622_i2c2_0_funcs[] = { 0, 0, };
-static int mt7622_i2c2_1_pins[] = { 75, 76, };
-static int mt7622_i2c2_1_funcs[] = { 3, 3, };
-static int mt7622_i2c2_2_pins[] = { 89, 90, };
-static int mt7622_i2c2_2_funcs[] = { 0, 0, };
+static const int mt7622_i2c0_pins[] = { 14, 15, };
+static const int mt7622_i2c0_funcs[] = { 0, 0, };
+static const int mt7622_i2c1_0_pins[] = { 55, 56, };
+static const int mt7622_i2c1_0_funcs[] = { 0, 0, };
+static const int mt7622_i2c1_1_pins[] = { 73, 74, };
+static const int mt7622_i2c1_1_funcs[] = { 3, 3, };
+static const int mt7622_i2c1_2_pins[] = { 87, 88, };
+static const int mt7622_i2c1_2_funcs[] = { 0, 0, };
+static const int mt7622_i2c2_0_pins[] = { 57, 58, };
+static const int mt7622_i2c2_0_funcs[] = { 0, 0, };
+static const int mt7622_i2c2_1_pins[] = { 75, 76, };
+static const int mt7622_i2c2_1_funcs[] = { 3, 3, };
+static const int mt7622_i2c2_2_pins[] = { 89, 90, };
+static const int mt7622_i2c2_2_funcs[] = { 0, 0, };
 
 /* I2S */
-static int mt7622_i2s_in_mclk_bclk_ws_pins[] = { 3, 4, 5, };
-static int mt7622_i2s_in_mclk_bclk_ws_funcs[] = { 3, 3, 0, };
-static int mt7622_i2s1_in_data_pins[] = { 1, };
-static int mt7622_i2s1_in_data_funcs[] = { 0, };
-static int mt7622_i2s2_in_data_pins[] = { 16, };
-static int mt7622_i2s2_in_data_funcs[] = { 0, };
-static int mt7622_i2s3_in_data_pins[] = { 17, };
-static int mt7622_i2s3_in_data_funcs[] = { 0, };
-static int mt7622_i2s4_in_data_pins[] = { 18, };
-static int mt7622_i2s4_in_data_funcs[] = { 0, };
-static int mt7622_i2s_out_mclk_bclk_ws_pins[] = { 3, 4, 5, };
-static int mt7622_i2s_out_mclk_bclk_ws_funcs[] = { 0, 0, 0, };
-static int mt7622_i2s1_out_data_pins[] = { 2, };
-static int mt7622_i2s1_out_data_funcs[] = { 0, };
-static int mt7622_i2s2_out_data_pins[] = { 19, };
-static int mt7622_i2s2_out_data_funcs[] = { 0, };
-static int mt7622_i2s3_out_data_pins[] = { 20, };
-static int mt7622_i2s3_out_data_funcs[] = { 0, };
-static int mt7622_i2s4_out_data_pins[] = { 21, };
-static int mt7622_i2s4_out_data_funcs[] = { 0, };
+static const int mt7622_i2s_in_mclk_bclk_ws_pins[] = { 3, 4, 5, };
+static const int mt7622_i2s_in_mclk_bclk_ws_funcs[] = { 3, 3, 0, };
+static const int mt7622_i2s1_in_data_pins[] = { 1, };
+static const int mt7622_i2s1_in_data_funcs[] = { 0, };
+static const int mt7622_i2s2_in_data_pins[] = { 16, };
+static const int mt7622_i2s2_in_data_funcs[] = { 0, };
+static const int mt7622_i2s3_in_data_pins[] = { 17, };
+static const int mt7622_i2s3_in_data_funcs[] = { 0, };
+static const int mt7622_i2s4_in_data_pins[] = { 18, };
+static const int mt7622_i2s4_in_data_funcs[] = { 0, };
+static const int mt7622_i2s_out_mclk_bclk_ws_pins[] = { 3, 4, 5, };
+static const int mt7622_i2s_out_mclk_bclk_ws_funcs[] = { 0, 0, 0, };
+static const int mt7622_i2s1_out_data_pins[] = { 2, };
+static const int mt7622_i2s1_out_data_funcs[] = { 0, };
+static const int mt7622_i2s2_out_data_pins[] = { 19, };
+static const int mt7622_i2s2_out_data_funcs[] = { 0, };
+static const int mt7622_i2s3_out_data_pins[] = { 20, };
+static const int mt7622_i2s3_out_data_funcs[] = { 0, };
+static const int mt7622_i2s4_out_data_pins[] = { 21, };
+static const int mt7622_i2s4_out_data_funcs[] = { 0, };
 
 /* IR */
-static int mt7622_ir_0_tx_pins[] = { 16, };
-static int mt7622_ir_0_tx_funcs[] = { 4, };
-static int mt7622_ir_1_tx_pins[] = { 59, };
-static int mt7622_ir_1_tx_funcs[] = { 5, };
-static int mt7622_ir_2_tx_pins[] = { 99, };
-static int mt7622_ir_2_tx_funcs[] = { 3, };
-static int mt7622_ir_0_rx_pins[] = { 17, };
-static int mt7622_ir_0_rx_funcs[] = { 4, };
-static int mt7622_ir_1_rx_pins[] = { 60, };
-static int mt7622_ir_1_rx_funcs[] = { 5, };
-static int mt7622_ir_2_rx_pins[] = { 100, };
-static int mt7622_ir_2_rx_funcs[] = { 3, };
+static const int mt7622_ir_0_tx_pins[] = { 16, };
+static const int mt7622_ir_0_tx_funcs[] = { 4, };
+static const int mt7622_ir_1_tx_pins[] = { 59, };
+static const int mt7622_ir_1_tx_funcs[] = { 5, };
+static const int mt7622_ir_2_tx_pins[] = { 99, };
+static const int mt7622_ir_2_tx_funcs[] = { 3, };
+static const int mt7622_ir_0_rx_pins[] = { 17, };
+static const int mt7622_ir_0_rx_funcs[] = { 4, };
+static const int mt7622_ir_1_rx_pins[] = { 60, };
+static const int mt7622_ir_1_rx_funcs[] = { 5, };
+static const int mt7622_ir_2_rx_pins[] = { 100, };
+static const int mt7622_ir_2_rx_funcs[] = { 3, };
 
 /* MDIO */
-static int mt7622_mdc_mdio_pins[] = { 23, 24, };
-static int mt7622_mdc_mdio_funcs[] = { 0, 0, };
+static const int mt7622_mdc_mdio_pins[] = { 23, 24, };
+static const int mt7622_mdc_mdio_funcs[] = { 0, 0, };
 
 /* PCIE */
-static int mt7622_pcie0_0_waken_pins[] = { 14, };
-static int mt7622_pcie0_0_waken_funcs[] = { 2, };
-static int mt7622_pcie0_0_clkreq_pins[] = { 15, };
-static int mt7622_pcie0_0_clkreq_funcs[] = { 2, };
-static int mt7622_pcie0_1_waken_pins[] = { 79, };
-static int mt7622_pcie0_1_waken_funcs[] = { 4, };
-static int mt7622_pcie0_1_clkreq_pins[] = { 80, };
-static int mt7622_pcie0_1_clkreq_funcs[] = { 4, };
-static int mt7622_pcie1_0_waken_pins[] = { 14, };
-static int mt7622_pcie1_0_waken_funcs[] = { 3, };
-static int mt7622_pcie1_0_clkreq_pins[] = { 15, };
-static int mt7622_pcie1_0_clkreq_funcs[] = { 3, };
-
-static int mt7622_pcie0_pad_perst_pins[] = { 83, };
-static int mt7622_pcie0_pad_perst_funcs[] = { 0, };
-static int mt7622_pcie1_pad_perst_pins[] = { 84, };
-static int mt7622_pcie1_pad_perst_funcs[] = { 0, };
+static const int mt7622_pcie0_0_waken_pins[] = { 14, };
+static const int mt7622_pcie0_0_waken_funcs[] = { 2, };
+static const int mt7622_pcie0_0_clkreq_pins[] = { 15, };
+static const int mt7622_pcie0_0_clkreq_funcs[] = { 2, };
+static const int mt7622_pcie0_1_waken_pins[] = { 79, };
+static const int mt7622_pcie0_1_waken_funcs[] = { 4, };
+static const int mt7622_pcie0_1_clkreq_pins[] = { 80, };
+static const int mt7622_pcie0_1_clkreq_funcs[] = { 4, };
+static const int mt7622_pcie1_0_waken_pins[] = { 14, };
+static const int mt7622_pcie1_0_waken_funcs[] = { 3, };
+static const int mt7622_pcie1_0_clkreq_pins[] = { 15, };
+static const int mt7622_pcie1_0_clkreq_funcs[] = { 3, };
+
+static const int mt7622_pcie0_pad_perst_pins[] = { 83, };
+static const int mt7622_pcie0_pad_perst_funcs[] = { 0, };
+static const int mt7622_pcie1_pad_perst_pins[] = { 84, };
+static const int mt7622_pcie1_pad_perst_funcs[] = { 0, };
 
 /* PMIC bus */
-static int mt7622_pmic_bus_pins[] = { 71, 72, };
-static int mt7622_pmic_bus_funcs[] = { 0, 0, };
+static const int mt7622_pmic_bus_pins[] = { 71, 72, };
+static const int mt7622_pmic_bus_funcs[] = { 0, 0, };
 
 /* Parallel NAND */
-static int mt7622_pnand_pins[] = { 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47,
-				   48, 49, 50, };
-static int mt7622_pnand_funcs[] = { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
-				    0, };
+static const int mt7622_pnand_pins[] = {
+	37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, };
+static const int mt7622_pnand_funcs[] = {
+	0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, };
 
 /* PWM */
-static int mt7622_pwm_ch1_0_pins[] = { 51, };
-static int mt7622_pwm_ch1_0_funcs[] = { 3, };
-static int mt7622_pwm_ch1_1_pins[] = { 73, };
-static int mt7622_pwm_ch1_1_funcs[] = { 4, };
-static int mt7622_pwm_ch1_2_pins[] = { 95, };
-static int mt7622_pwm_ch1_2_funcs[] = { 0, };
-static int mt7622_pwm_ch2_0_pins[] = { 52, };
-static int mt7622_pwm_ch2_0_funcs[] = { 3, };
-static int mt7622_pwm_ch2_1_pins[] = { 74, };
-static int mt7622_pwm_ch2_1_funcs[] = { 4, };
-static int mt7622_pwm_ch2_2_pins[] = { 96, };
-static int mt7622_pwm_ch2_2_funcs[] = { 0, };
-static int mt7622_pwm_ch3_0_pins[] = { 53, };
-static int mt7622_pwm_ch3_0_funcs[] = { 3, };
-static int mt7622_pwm_ch3_1_pins[] = { 75, };
-static int mt7622_pwm_ch3_1_funcs[] = { 4, };
-static int mt7622_pwm_ch3_2_pins[] = { 97, };
-static int mt7622_pwm_ch3_2_funcs[] = { 0, };
-static int mt7622_pwm_ch4_0_pins[] = { 54, };
-static int mt7622_pwm_ch4_0_funcs[] = { 3, };
-static int mt7622_pwm_ch4_1_pins[] = { 67, };
-static int mt7622_pwm_ch4_1_funcs[] = { 3, };
-static int mt7622_pwm_ch4_2_pins[] = { 76, };
-static int mt7622_pwm_ch4_2_funcs[] = { 4, };
-static int mt7622_pwm_ch4_3_pins[] = { 98, };
-static int mt7622_pwm_ch4_3_funcs[] = { 0, };
-static int mt7622_pwm_ch5_0_pins[] = { 68, };
-static int mt7622_pwm_ch5_0_funcs[] = { 3, };
-static int mt7622_pwm_ch5_1_pins[] = { 77, };
-static int mt7622_pwm_ch5_1_funcs[] = { 4, };
-static int mt7622_pwm_ch5_2_pins[] = { 99, };
-static int mt7622_pwm_ch5_2_funcs[] = { 0, };
-static int mt7622_pwm_ch6_0_pins[] = { 69, };
-static int mt7622_pwm_ch6_0_funcs[] = { 3, };
-static int mt7622_pwm_ch6_1_pins[] = { 78, };
-static int mt7622_pwm_ch6_1_funcs[] = { 4, };
-static int mt7622_pwm_ch6_2_pins[] = { 81, };
-static int mt7622_pwm_ch6_2_funcs[] = { 4, };
-static int mt7622_pwm_ch6_3_pins[] = { 100, };
-static int mt7622_pwm_ch6_3_funcs[] = { 0, };
-static int mt7622_pwm_ch7_0_pins[] = { 70, };
-static int mt7622_pwm_ch7_0_funcs[] = { 3, };
-static int mt7622_pwm_ch7_1_pins[] = { 82, };
-static int mt7622_pwm_ch7_1_funcs[] = { 4, };
-static int mt7622_pwm_ch7_2_pins[] = { 101, };
-static int mt7622_pwm_ch7_2_funcs[] = { 0, };
+static const int mt7622_pwm_ch1_0_pins[] = { 51, };
+static const int mt7622_pwm_ch1_0_funcs[] = { 3, };
+static const int mt7622_pwm_ch1_1_pins[] = { 73, };
+static const int mt7622_pwm_ch1_1_funcs[] = { 4, };
+static const int mt7622_pwm_ch1_2_pins[] = { 95, };
+static const int mt7622_pwm_ch1_2_funcs[] = { 0, };
+static const int mt7622_pwm_ch2_0_pins[] = { 52, };
+static const int mt7622_pwm_ch2_0_funcs[] = { 3, };
+static const int mt7622_pwm_ch2_1_pins[] = { 74, };
+static const int mt7622_pwm_ch2_1_funcs[] = { 4, };
+static const int mt7622_pwm_ch2_2_pins[] = { 96, };
+static const int mt7622_pwm_ch2_2_funcs[] = { 0, };
+static const int mt7622_pwm_ch3_0_pins[] = { 53, };
+static const int mt7622_pwm_ch3_0_funcs[] = { 3, };
+static const int mt7622_pwm_ch3_1_pins[] = { 75, };
+static const int mt7622_pwm_ch3_1_funcs[] = { 4, };
+static const int mt7622_pwm_ch3_2_pins[] = { 97, };
+static const int mt7622_pwm_ch3_2_funcs[] = { 0, };
+static const int mt7622_pwm_ch4_0_pins[] = { 54, };
+static const int mt7622_pwm_ch4_0_funcs[] = { 3, };
+static const int mt7622_pwm_ch4_1_pins[] = { 67, };
+static const int mt7622_pwm_ch4_1_funcs[] = { 3, };
+static const int mt7622_pwm_ch4_2_pins[] = { 76, };
+static const int mt7622_pwm_ch4_2_funcs[] = { 4, };
+static const int mt7622_pwm_ch4_3_pins[] = { 98, };
+static const int mt7622_pwm_ch4_3_funcs[] = { 0, };
+static const int mt7622_pwm_ch5_0_pins[] = { 68, };
+static const int mt7622_pwm_ch5_0_funcs[] = { 3, };
+static const int mt7622_pwm_ch5_1_pins[] = { 77, };
+static const int mt7622_pwm_ch5_1_funcs[] = { 4, };
+static const int mt7622_pwm_ch5_2_pins[] = { 99, };
+static const int mt7622_pwm_ch5_2_funcs[] = { 0, };
+static const int mt7622_pwm_ch6_0_pins[] = { 69, };
+static const int mt7622_pwm_ch6_0_funcs[] = { 3, };
+static const int mt7622_pwm_ch6_1_pins[] = { 78, };
+static const int mt7622_pwm_ch6_1_funcs[] = { 4, };
+static const int mt7622_pwm_ch6_2_pins[] = { 81, };
+static const int mt7622_pwm_ch6_2_funcs[] = { 4, };
+static const int mt7622_pwm_ch6_3_pins[] = { 100, };
+static const int mt7622_pwm_ch6_3_funcs[] = { 0, };
+static const int mt7622_pwm_ch7_0_pins[] = { 70, };
+static const int mt7622_pwm_ch7_0_funcs[] = { 3, };
+static const int mt7622_pwm_ch7_1_pins[] = { 82, };
+static const int mt7622_pwm_ch7_1_funcs[] = { 4, };
+static const int mt7622_pwm_ch7_2_pins[] = { 101, };
+static const int mt7622_pwm_ch7_2_funcs[] = { 0, };
 
 /* SD */
-static int mt7622_sd_0_pins[] = { 16, 17, 18, 19, 20, 21, };
-static int mt7622_sd_0_funcs[] = { 2, 2, 2, 2, 2, 2, };
-static int mt7622_sd_1_pins[] = { 25, 26, 27, 28, 29, 30, };
-static int mt7622_sd_1_funcs[] = { 2, 2, 2, 2, 2, 2, };
+static const int mt7622_sd_0_pins[] = { 16, 17, 18, 19, 20, 21, };
+static const int mt7622_sd_0_funcs[] = { 2, 2, 2, 2, 2, 2, };
+static const int mt7622_sd_1_pins[] = { 25, 26, 27, 28, 29, 30, };
+static const int mt7622_sd_1_funcs[] = { 2, 2, 2, 2, 2, 2, };
 
 /* Serial NAND */
-static int mt7622_snfi_pins[] = { 8, 9, 10, 11, 12, 13, };
-static int mt7622_snfi_funcs[] = { 2, 2, 2, 2, 2, 2, };
+static const int mt7622_snfi_pins[] = { 8, 9, 10, 11, 12, 13, };
+static const int mt7622_snfi_funcs[] = { 2, 2, 2, 2, 2, 2, };
 
 /* SPI NOR */
-static int mt7622_spi_pins[] = { 8, 9, 10, 11, 12, 13 };
-static int mt7622_spi_funcs[] = { 0, 0, 0, 0, 0, 0, };
+static const int mt7622_spi_pins[] = { 8, 9, 10, 11, 12, 13 };
+static const int mt7622_spi_funcs[] = { 0, 0, 0, 0, 0, 0, };
 
 /* SPIC */
-static int mt7622_spic0_0_pins[] = { 63, 64, 65, 66, };
-static int mt7622_spic0_0_funcs[] = { 4, 4, 4, 4, };
-static int mt7622_spic0_1_pins[] = { 79, 80, 81, 82, };
-static int mt7622_spic0_1_funcs[] = { 3, 3, 3, 3, };
-static int mt7622_spic1_0_pins[] = { 67, 68, 69, 70, };
-static int mt7622_spic1_0_funcs[] = { 4, 4, 4, 4, };
-static int mt7622_spic1_1_pins[] = { 73, 74, 75, 76, };
-static int mt7622_spic1_1_funcs[] = { 0, 0, 0, 0, };
-static int mt7622_spic2_0_pins[] = { 10, 11, 12, 13, };
-static int mt7622_spic2_0_funcs[] = { 0, 0, 0, 0, };
-static int mt7622_spic2_0_wp_hold_pins[] = { 8, 9, };
-static int mt7622_spic2_0_wp_hold_funcs[] = { 0, 0, };
+static const int mt7622_spic0_0_pins[] = { 63, 64, 65, 66, };
+static const int mt7622_spic0_0_funcs[] = { 4, 4, 4, 4, };
+static const int mt7622_spic0_1_pins[] = { 79, 80, 81, 82, };
+static const int mt7622_spic0_1_funcs[] = { 3, 3, 3, 3, };
+static const int mt7622_spic1_0_pins[] = { 67, 68, 69, 70, };
+static const int mt7622_spic1_0_funcs[] = { 4, 4, 4, 4, };
+static const int mt7622_spic1_1_pins[] = { 73, 74, 75, 76, };
+static const int mt7622_spic1_1_funcs[] = { 0, 0, 0, 0, };
+static const int mt7622_spic2_0_pins[] = { 10, 11, 12, 13, };
+static const int mt7622_spic2_0_funcs[] = { 0, 0, 0, 0, };
+static const int mt7622_spic2_0_wp_hold_pins[] = { 8, 9, };
+static const int mt7622_spic2_0_wp_hold_funcs[] = { 0, 0, };
 
 /* TDM */
-static int mt7622_tdm_0_out_mclk_bclk_ws_pins[] = { 8, 9, 10, };
-static int mt7622_tdm_0_out_mclk_bclk_ws_funcs[] = { 3, 3, 3, };
-static int mt7622_tdm_0_in_mclk_bclk_ws_pins[] = { 11, 12, 13, };
-static int mt7622_tdm_0_in_mclk_bclk_ws_funcs[] = { 3, 3, 3, };
-static int mt7622_tdm_0_out_data_pins[] = { 20, };
-static int mt7622_tdm_0_out_data_funcs[] = { 3, };
-static int mt7622_tdm_0_in_data_pins[] = { 21, };
-static int mt7622_tdm_0_in_data_funcs[] = { 3, };
-static int mt7622_tdm_1_out_mclk_bclk_ws_pins[] = { 57, 58, 59, };
-static int mt7622_tdm_1_out_mclk_bclk_ws_funcs[] = { 3, 3, 3, };
-static int mt7622_tdm_1_in_mclk_bclk_ws_pins[] = { 60, 61, 62, };
-static int mt7622_tdm_1_in_mclk_bclk_ws_funcs[] = { 3, 3, 3, };
-static int mt7622_tdm_1_out_data_pins[] = { 55, };
-static int mt7622_tdm_1_out_data_funcs[] = { 3, };
-static int mt7622_tdm_1_in_data_pins[] = { 56, };
-static int mt7622_tdm_1_in_data_funcs[] = { 3, };
+static const int mt7622_tdm_0_out_mclk_bclk_ws_pins[] = { 8, 9, 10, };
+static const int mt7622_tdm_0_out_mclk_bclk_ws_funcs[] = { 3, 3, 3, };
+static const int mt7622_tdm_0_in_mclk_bclk_ws_pins[] = { 11, 12, 13, };
+static const int mt7622_tdm_0_in_mclk_bclk_ws_funcs[] = { 3, 3, 3, };
+static const int mt7622_tdm_0_out_data_pins[] = { 20, };
+static const int mt7622_tdm_0_out_data_funcs[] = { 3, };
+static const int mt7622_tdm_0_in_data_pins[] = { 21, };
+static const int mt7622_tdm_0_in_data_funcs[] = { 3, };
+static const int mt7622_tdm_1_out_mclk_bclk_ws_pins[] = { 57, 58, 59, };
+static const int mt7622_tdm_1_out_mclk_bclk_ws_funcs[] = { 3, 3, 3, };
+static const int mt7622_tdm_1_in_mclk_bclk_ws_pins[] = { 60, 61, 62, };
+static const int mt7622_tdm_1_in_mclk_bclk_ws_funcs[] = { 3, 3, 3, };
+static const int mt7622_tdm_1_out_data_pins[] = { 55, };
+static const int mt7622_tdm_1_out_data_funcs[] = { 3, };
+static const int mt7622_tdm_1_in_data_pins[] = { 56, };
+static const int mt7622_tdm_1_in_data_funcs[] = { 3, };
 
 /* UART */
-static int mt7622_uart0_0_tx_rx_pins[] = { 6, 7, };
-static int mt7622_uart0_0_tx_rx_funcs[] = { 0, 0, };
-static int mt7622_uart1_0_tx_rx_pins[] = { 55, 56, };
-static int mt7622_uart1_0_tx_rx_funcs[] = { 2, 2, };
-static int mt7622_uart1_0_rts_cts_pins[] = { 57, 58, };
-static int mt7622_uart1_0_rts_cts_funcs[] = { 2, 2, };
-static int mt7622_uart1_1_tx_rx_pins[] = { 73, 74, };
-static int mt7622_uart1_1_tx_rx_funcs[] = { 2, 2, };
-static int mt7622_uart1_1_rts_cts_pins[] = { 75, 76, };
-static int mt7622_uart1_1_rts_cts_funcs[] = { 2, 2, };
-static int mt7622_uart2_0_tx_rx_pins[] = { 3, 4, };
-static int mt7622_uart2_0_tx_rx_funcs[] = { 2, 2, };
-static int mt7622_uart2_0_rts_cts_pins[] = { 1, 2, };
-static int mt7622_uart2_0_rts_cts_funcs[] = { 2, 2, };
-static int mt7622_uart2_1_tx_rx_pins[] = { 51, 52, };
-static int mt7622_uart2_1_tx_rx_funcs[] = { 0, 0, };
-static int mt7622_uart2_1_rts_cts_pins[] = { 53, 54, };
-static int mt7622_uart2_1_rts_cts_funcs[] = { 0, 0, };
-static int mt7622_uart2_2_tx_rx_pins[] = { 59, 60, };
-static int mt7622_uart2_2_tx_rx_funcs[] = { 4, 4, };
-static int mt7622_uart2_2_rts_cts_pins[] = { 61, 62, };
-static int mt7622_uart2_2_rts_cts_funcs[] = { 4, 4, };
-static int mt7622_uart2_3_tx_rx_pins[] = { 95, 96, };
-static int mt7622_uart2_3_tx_rx_funcs[] = { 3, 3, };
-static int mt7622_uart3_0_tx_rx_pins[] = { 57, 58, };
-static int mt7622_uart3_0_tx_rx_funcs[] = { 5, 5, };
-static int mt7622_uart3_1_tx_rx_pins[] = { 81, 82, };
-static int mt7622_uart3_1_tx_rx_funcs[] = { 0, 0, };
-static int mt7622_uart3_1_rts_cts_pins[] = { 79, 80, };
-static int mt7622_uart3_1_rts_cts_funcs[] = { 0, 0, };
-static int mt7622_uart4_0_tx_rx_pins[] = { 61, 62, };
-static int mt7622_uart4_0_tx_rx_funcs[] = { 5, 5, };
-static int mt7622_uart4_1_tx_rx_pins[] = { 91, 92, };
-static int mt7622_uart4_1_tx_rx_funcs[] = { 0, 0, };
-static int mt7622_uart4_1_rts_cts_pins[] = { 93, 94 };
-static int mt7622_uart4_1_rts_cts_funcs[] = { 0, 0, };
-static int mt7622_uart4_2_tx_rx_pins[] = { 97, 98, };
-static int mt7622_uart4_2_tx_rx_funcs[] = { 2, 2, };
-static int mt7622_uart4_2_rts_cts_pins[] = { 95, 96 };
-static int mt7622_uart4_2_rts_cts_funcs[] = { 2, 2, };
+static const int mt7622_uart0_0_tx_rx_pins[] = { 6, 7, };
+static const int mt7622_uart0_0_tx_rx_funcs[] = { 0, 0, };
+static const int mt7622_uart1_0_tx_rx_pins[] = { 55, 56, };
+static const int mt7622_uart1_0_tx_rx_funcs[] = { 2, 2, };
+static const int mt7622_uart1_0_rts_cts_pins[] = { 57, 58, };
+static const int mt7622_uart1_0_rts_cts_funcs[] = { 2, 2, };
+static const int mt7622_uart1_1_tx_rx_pins[] = { 73, 74, };
+static const int mt7622_uart1_1_tx_rx_funcs[] = { 2, 2, };
+static const int mt7622_uart1_1_rts_cts_pins[] = { 75, 76, };
+static const int mt7622_uart1_1_rts_cts_funcs[] = { 2, 2, };
+static const int mt7622_uart2_0_tx_rx_pins[] = { 3, 4, };
+static const int mt7622_uart2_0_tx_rx_funcs[] = { 2, 2, };
+static const int mt7622_uart2_0_rts_cts_pins[] = { 1, 2, };
+static const int mt7622_uart2_0_rts_cts_funcs[] = { 2, 2, };
+static const int mt7622_uart2_1_tx_rx_pins[] = { 51, 52, };
+static const int mt7622_uart2_1_tx_rx_funcs[] = { 0, 0, };
+static const int mt7622_uart2_1_rts_cts_pins[] = { 53, 54, };
+static const int mt7622_uart2_1_rts_cts_funcs[] = { 0, 0, };
+static const int mt7622_uart2_2_tx_rx_pins[] = { 59, 60, };
+static const int mt7622_uart2_2_tx_rx_funcs[] = { 4, 4, };
+static const int mt7622_uart2_2_rts_cts_pins[] = { 61, 62, };
+static const int mt7622_uart2_2_rts_cts_funcs[] = { 4, 4, };
+static const int mt7622_uart2_3_tx_rx_pins[] = { 95, 96, };
+static const int mt7622_uart2_3_tx_rx_funcs[] = { 3, 3, };
+static const int mt7622_uart3_0_tx_rx_pins[] = { 57, 58, };
+static const int mt7622_uart3_0_tx_rx_funcs[] = { 5, 5, };
+static const int mt7622_uart3_1_tx_rx_pins[] = { 81, 82, };
+static const int mt7622_uart3_1_tx_rx_funcs[] = { 0, 0, };
+static const int mt7622_uart3_1_rts_cts_pins[] = { 79, 80, };
+static const int mt7622_uart3_1_rts_cts_funcs[] = { 0, 0, };
+static const int mt7622_uart4_0_tx_rx_pins[] = { 61, 62, };
+static const int mt7622_uart4_0_tx_rx_funcs[] = { 5, 5, };
+static const int mt7622_uart4_1_tx_rx_pins[] = { 91, 92, };
+static const int mt7622_uart4_1_tx_rx_funcs[] = { 0, 0, };
+static const int mt7622_uart4_1_rts_cts_pins[] = { 93, 94 };
+static const int mt7622_uart4_1_rts_cts_funcs[] = { 0, 0, };
+static const int mt7622_uart4_2_tx_rx_pins[] = { 97, 98, };
+static const int mt7622_uart4_2_tx_rx_funcs[] = { 2, 2, };
+static const int mt7622_uart4_2_rts_cts_pins[] = { 95, 96 };
+static const int mt7622_uart4_2_rts_cts_funcs[] = { 2, 2, };
 
 /* Watchdog */
-static int mt7622_watchdog_pins[] = { 78, };
-static int mt7622_watchdog_funcs[] = { 0, };
+static const int mt7622_watchdog_pins[] = { 78, };
+static const int mt7622_watchdog_funcs[] = { 0, };
 
 /* WLAN LED */
-static int mt7622_wled_pins[] = { 85, };
-static int mt7622_wled_funcs[] = { 0, };
+static const int mt7622_wled_pins[] = { 85, };
+static const int mt7622_wled_funcs[] = { 0, };
 
 static const struct mtk_group_desc mt7622_groups[] = {
 	PINCTRL_PIN_GROUP("emmc", mt7622_emmc),
@@ -719,7 +721,7 @@ static const struct mtk_function_desc mt7622_functions[] = {
 	{"watchdog", mt7622_wdt_groups, ARRAY_SIZE(mt7622_wdt_groups)},
 };
 
-static struct mtk_pinctrl_soc mt7622_data = {
+static const struct mtk_pinctrl_soc mt7622_data = {
 	.name = "mt7622_pinctrl",
 	.reg_cal = mt7622_reg_cals,
 	.pins = mt7622_pins,
diff --git a/drivers/pinctrl/mediatek/pinctrl-mt7623.c b/drivers/pinctrl/mediatek/pinctrl-mt7623.c
index 2e3ae34..2703e6f 100644
--- a/drivers/pinctrl/mediatek/pinctrl-mt7623.c
+++ b/drivers/pinctrl/mediatek/pinctrl-mt7623.c
@@ -692,377 +692,377 @@ static const struct mtk_pin_desc mt7623_pins[] = {
  */
 
 /* AUDIO EXT CLK */
-static int mt7623_aud_ext_clk0_pins[] = { 208, };
-static int mt7623_aud_ext_clk0_funcs[] = { 1, };
-static int mt7623_aud_ext_clk1_pins[] = { 209, };
-static int mt7623_aud_ext_clk1_funcs[] = { 1, };
+static const int mt7623_aud_ext_clk0_pins[] = { 208, };
+static const int mt7623_aud_ext_clk0_funcs[] = { 1, };
+static const int mt7623_aud_ext_clk1_pins[] = { 209, };
+static const int mt7623_aud_ext_clk1_funcs[] = { 1, };
 
 /* DISP PWM */
-static int mt7623_disp_pwm_0_pins[] = { 72, };
-static int mt7623_disp_pwm_0_funcs[] = { 5, };
-static int mt7623_disp_pwm_1_pins[] = { 203, };
-static int mt7623_disp_pwm_1_funcs[] = { 2, };
-static int mt7623_disp_pwm_2_pins[] = { 208, };
-static int mt7623_disp_pwm_2_funcs[] = { 5, };
+static const int mt7623_disp_pwm_0_pins[] = { 72, };
+static const int mt7623_disp_pwm_0_funcs[] = { 5, };
+static const int mt7623_disp_pwm_1_pins[] = { 203, };
+static const int mt7623_disp_pwm_1_funcs[] = { 2, };
+static const int mt7623_disp_pwm_2_pins[] = { 208, };
+static const int mt7623_disp_pwm_2_funcs[] = { 5, };
 
 /* ESW */
-static int mt7623_esw_int_pins[] = { 273, };
-static int mt7623_esw_int_funcs[] = { 1, };
-static int mt7623_esw_rst_pins[] = { 277, };
-static int mt7623_esw_rst_funcs[] = { 1, };
+static const int mt7623_esw_int_pins[] = { 273, };
+static const int mt7623_esw_int_funcs[] = { 1, };
+static const int mt7623_esw_rst_pins[] = { 277, };
+static const int mt7623_esw_rst_funcs[] = { 1, };
 
 /* EPHY */
-static int mt7623_ephy_pins[] = { 262, 263, 264, 265, 266, 267, 268,
-				  269, 270, 271, 272, 274, };
-static int mt7623_ephy_funcs[] = { 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, };
+static const int mt7623_ephy_pins[] = { 262, 263, 264, 265, 266, 267, 268,
+					269, 270, 271, 272, 274, };
+static const int mt7623_ephy_funcs[] = { 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, };
 
 /* EXT_SDIO */
-static int mt7623_ext_sdio_pins[] = { 236, 237, 238, 239, 240, 241, };
-static int mt7623_ext_sdio_funcs[] = { 1, 1, 1, 1, 1, 1, };
+static const int mt7623_ext_sdio_pins[] = { 236, 237, 238, 239, 240, 241, };
+static const int mt7623_ext_sdio_funcs[] = { 1, 1, 1, 1, 1, 1, };
 
 /* HDMI RX */
-static int mt7623_hdmi_rx_pins[] = { 247, 248, };
-static int mt7623_hdmi_rx_funcs[] = { 1, 1 };
-static int mt7623_hdmi_rx_i2c_pins[] = { 244, 245, };
-static int mt7623_hdmi_rx_i2c_funcs[] = { 1, 1 };
+static const int mt7623_hdmi_rx_pins[] = { 247, 248, };
+static const int mt7623_hdmi_rx_funcs[] = { 1, 1 };
+static const int mt7623_hdmi_rx_i2c_pins[] = { 244, 245, };
+static const int mt7623_hdmi_rx_i2c_funcs[] = { 1, 1 };
 
 /* HDMI TX */
-static int mt7623_hdmi_cec_pins[] = { 122, };
-static int mt7623_hdmi_cec_funcs[] = { 1, };
-static int mt7623_hdmi_htplg_pins[] = { 123, };
-static int mt7623_hdmi_htplg_funcs[] = { 1, };
-static int mt7623_hdmi_i2c_pins[] = { 124, 125, };
-static int mt7623_hdmi_i2c_funcs[] = { 1, 1 };
+static const int mt7623_hdmi_cec_pins[] = { 122, };
+static const int mt7623_hdmi_cec_funcs[] = { 1, };
+static const int mt7623_hdmi_htplg_pins[] = { 123, };
+static const int mt7623_hdmi_htplg_funcs[] = { 1, };
+static const int mt7623_hdmi_i2c_pins[] = { 124, 125, };
+static const int mt7623_hdmi_i2c_funcs[] = { 1, 1 };
 
 /* I2C */
-static int mt7623_i2c0_pins[] = { 75, 76, };
-static int mt7623_i2c0_funcs[] = { 1, 1, };
-static int mt7623_i2c1_0_pins[] = { 57, 58, };
-static int mt7623_i2c1_0_funcs[] = { 1, 1, };
-static int mt7623_i2c1_1_pins[] = { 242, 243, };
-static int mt7623_i2c1_1_funcs[] = { 4, 4, };
-static int mt7623_i2c1_2_pins[] = { 85, 86, };
-static int mt7623_i2c1_2_funcs[] = { 3, 3, };
-static int mt7623_i2c1_3_pins[] = { 105, 106, };
-static int mt7623_i2c1_3_funcs[] = { 3, 3, };
-static int mt7623_i2c1_4_pins[] = { 124, 125, };
-static int mt7623_i2c1_4_funcs[] = { 4, 4, };
-static int mt7623_i2c2_0_pins[] = { 77, 78, };
-static int mt7623_i2c2_0_funcs[] = { 1, 1, };
-static int mt7623_i2c2_1_pins[] = { 89, 90, };
-static int mt7623_i2c2_1_funcs[] = { 3, 3, };
-static int mt7623_i2c2_2_pins[] = { 109, 110, };
-static int mt7623_i2c2_2_funcs[] = { 3, 3, };
-static int mt7623_i2c2_3_pins[] = { 122, 123, };
-static int mt7623_i2c2_3_funcs[] = { 4, 4, };
+static const int mt7623_i2c0_pins[] = { 75, 76, };
+static const int mt7623_i2c0_funcs[] = { 1, 1, };
+static const int mt7623_i2c1_0_pins[] = { 57, 58, };
+static const int mt7623_i2c1_0_funcs[] = { 1, 1, };
+static const int mt7623_i2c1_1_pins[] = { 242, 243, };
+static const int mt7623_i2c1_1_funcs[] = { 4, 4, };
+static const int mt7623_i2c1_2_pins[] = { 85, 86, };
+static const int mt7623_i2c1_2_funcs[] = { 3, 3, };
+static const int mt7623_i2c1_3_pins[] = { 105, 106, };
+static const int mt7623_i2c1_3_funcs[] = { 3, 3, };
+static const int mt7623_i2c1_4_pins[] = { 124, 125, };
+static const int mt7623_i2c1_4_funcs[] = { 4, 4, };
+static const int mt7623_i2c2_0_pins[] = { 77, 78, };
+static const int mt7623_i2c2_0_funcs[] = { 1, 1, };
+static const int mt7623_i2c2_1_pins[] = { 89, 90, };
+static const int mt7623_i2c2_1_funcs[] = { 3, 3, };
+static const int mt7623_i2c2_2_pins[] = { 109, 110, };
+static const int mt7623_i2c2_2_funcs[] = { 3, 3, };
+static const int mt7623_i2c2_3_pins[] = { 122, 123, };
+static const int mt7623_i2c2_3_funcs[] = { 4, 4, };
 
 /* I2S */
-static int mt7623_i2s0_pins[] = { 49, 72, 73, 74, 126, };
-static int mt7623_i2s0_funcs[] = { 1, 1, 1, 1, 1, };
-static int mt7623_i2s1_pins[] = { 33, 34, 35, 36, 37, };
-static int mt7623_i2s1_funcs[] = { 1, 1, 1, 1, 1, };
-static int mt7623_i2s2_bclk_lrclk_mclk_pins[] = { 50, 52, 188, };
-static int mt7623_i2s2_bclk_lrclk_mclk_funcs[] = { 1, 1, 1, };
-static int mt7623_i2s2_data_in_pins[] = { 51, };
-static int mt7623_i2s2_data_in_funcs[] = { 1, };
-static int mt7623_i2s2_data_0_pins[] = { 203, };
-static int mt7623_i2s2_data_0_funcs[] = { 9, };
-static int mt7623_i2s2_data_1_pins[] = { 38,  };
-static int mt7623_i2s2_data_1_funcs[] = { 4, };
-static int mt7623_i2s3_bclk_lrclk_mclk_pins[] = { 191, 192, 193, };
-static int mt7623_i2s3_bclk_lrclk_mclk_funcs[] = { 1, 1, 1, };
-static int mt7623_i2s3_data_in_pins[] = { 190, };
-static int mt7623_i2s3_data_in_funcs[] = { 1, };
-static int mt7623_i2s3_data_0_pins[] = { 204, };
-static int mt7623_i2s3_data_0_funcs[] = { 9, };
-static int mt7623_i2s3_data_1_pins[] = { 2, };
-static int mt7623_i2s3_data_1_funcs[] = { 0, };
-static int mt7623_i2s4_pins[] = { 194, 195, 196, 197, 198, };
-static int mt7623_i2s4_funcs[] = { 1, 1, 1, 1, 1, };
-static int mt7623_i2s5_pins[] = { 16, 17, 30, 31, 32, };
-static int mt7623_i2s5_funcs[] = { 1, 1, 1, 1, 1, };
+static const int mt7623_i2s0_pins[] = { 49, 72, 73, 74, 126, };
+static const int mt7623_i2s0_funcs[] = { 1, 1, 1, 1, 1, };
+static const int mt7623_i2s1_pins[] = { 33, 34, 35, 36, 37, };
+static const int mt7623_i2s1_funcs[] = { 1, 1, 1, 1, 1, };
+static const int mt7623_i2s2_bclk_lrclk_mclk_pins[] = { 50, 52, 188, };
+static const int mt7623_i2s2_bclk_lrclk_mclk_funcs[] = { 1, 1, 1, };
+static const int mt7623_i2s2_data_in_pins[] = { 51, };
+static const int mt7623_i2s2_data_in_funcs[] = { 1, };
+static const int mt7623_i2s2_data_0_pins[] = { 203, };
+static const int mt7623_i2s2_data_0_funcs[] = { 9, };
+static const int mt7623_i2s2_data_1_pins[] = { 38,  };
+static const int mt7623_i2s2_data_1_funcs[] = { 4, };
+static const int mt7623_i2s3_bclk_lrclk_mclk_pins[] = { 191, 192, 193, };
+static const int mt7623_i2s3_bclk_lrclk_mclk_funcs[] = { 1, 1, 1, };
+static const int mt7623_i2s3_data_in_pins[] = { 190, };
+static const int mt7623_i2s3_data_in_funcs[] = { 1, };
+static const int mt7623_i2s3_data_0_pins[] = { 204, };
+static const int mt7623_i2s3_data_0_funcs[] = { 9, };
+static const int mt7623_i2s3_data_1_pins[] = { 2, };
+static const int mt7623_i2s3_data_1_funcs[] = { 0, };
+static const int mt7623_i2s4_pins[] = { 194, 195, 196, 197, 198, };
+static const int mt7623_i2s4_funcs[] = { 1, 1, 1, 1, 1, };
+static const int mt7623_i2s5_pins[] = { 16, 17, 30, 31, 32, };
+static const int mt7623_i2s5_funcs[] = { 1, 1, 1, 1, 1, };
 
 /* IR */
-static int mt7623_ir_pins[] = { 46, };
-static int mt7623_ir_funcs[] = { 1, };
+static const int mt7623_ir_pins[] = { 46, };
+static const int mt7623_ir_funcs[] = { 1, };
 
 /* LCD */
-static int mt7623_mipi_tx_pins[] = { 91, 92, 93, 94, 95, 96, 97, 98,
-				     99, 100, };
-static int mt7623_mipi_tx_funcs[] = { 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, };
-static int mt7623_dsi_te_pins[] = { 84, };
-static int mt7623_dsi_te_funcs[] = { 1, };
-static int mt7623_lcm_rst_pins[] = { 83, };
-static int mt7623_lcm_rst_funcs[] = { 1, };
+static const int mt7623_mipi_tx_pins[] = { 91, 92, 93, 94, 95, 96, 97, 98,
+					   99, 100, };
+static const int mt7623_mipi_tx_funcs[] = { 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, };
+static const int mt7623_dsi_te_pins[] = { 84, };
+static const int mt7623_dsi_te_funcs[] = { 1, };
+static const int mt7623_lcm_rst_pins[] = { 83, };
+static const int mt7623_lcm_rst_funcs[] = { 1, };
 
 /* MDC/MDIO */
-static int mt7623_mdc_mdio_pins[] = { 275, 276, };
-static int mt7623_mdc_mdio_funcs[] = { 1, 1, };
+static const int mt7623_mdc_mdio_pins[] = { 275, 276, };
+static const int mt7623_mdc_mdio_funcs[] = { 1, 1, };
 
 /* MSDC */
-static int mt7623_msdc0_pins[] = { 111, 112, 113, 114, 115, 116, 117, 118,
-				   119, 120, 121, };
-static int mt7623_msdc0_funcs[] = { 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, };
-static int mt7623_msdc1_pins[] = { 105, 106, 107, 108, 109, 110, };
-static int mt7623_msdc1_funcs[] = { 1, 1, 1, 1, 1, 1, };
-static int mt7623_msdc1_ins_pins[] = { 261, };
-static int mt7623_msdc1_ins_funcs[] = { 1, };
-static int mt7623_msdc1_wp_0_pins[] = { 29, };
-static int mt7623_msdc1_wp_0_funcs[] = { 1, };
-static int mt7623_msdc1_wp_1_pins[] = { 55, };
-static int mt7623_msdc1_wp_1_funcs[] = { 3, };
-static int mt7623_msdc1_wp_2_pins[] = { 209, };
-static int mt7623_msdc1_wp_2_funcs[] = { 2, };
-static int mt7623_msdc2_pins[] = { 85, 86, 87, 88, 89, 90, };
-static int mt7623_msdc2_funcs[] = { 1, 1, 1, 1, 1, 1, };
-static int mt7623_msdc3_pins[] = { 249, 250, 251, 252, 253, 254, 255, 256,
-				   257, 258, 259, 260, };
-static int mt7623_msdc3_funcs[] = { 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, };
+static const int mt7623_msdc0_pins[] = { 111, 112, 113, 114, 115, 116, 117, 118,
+					 119, 120, 121, };
+static const int mt7623_msdc0_funcs[] = { 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, };
+static const int mt7623_msdc1_pins[] = { 105, 106, 107, 108, 109, 110, };
+static const int mt7623_msdc1_funcs[] = { 1, 1, 1, 1, 1, 1, };
+static const int mt7623_msdc1_ins_pins[] = { 261, };
+static const int mt7623_msdc1_ins_funcs[] = { 1, };
+static const int mt7623_msdc1_wp_0_pins[] = { 29, };
+static const int mt7623_msdc1_wp_0_funcs[] = { 1, };
+static const int mt7623_msdc1_wp_1_pins[] = { 55, };
+static const int mt7623_msdc1_wp_1_funcs[] = { 3, };
+static const int mt7623_msdc1_wp_2_pins[] = { 209, };
+static const int mt7623_msdc1_wp_2_funcs[] = { 2, };
+static const int mt7623_msdc2_pins[] = { 85, 86, 87, 88, 89, 90, };
+static const int mt7623_msdc2_funcs[] = { 1, 1, 1, 1, 1, 1, };
+static const int mt7623_msdc3_pins[] = { 249, 250, 251, 252, 253, 254, 255, 256,
+					 257, 258, 259, 260, };
+static const int mt7623_msdc3_funcs[] = { 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, };
 
 /* NAND */
-static int mt7623_nandc_pins[] = { 43, 47, 48, 111, 112, 113, 114, 115,
-				   116, 117, 118, 119, 120, 121, };
-static int mt7623_nandc_funcs[] = { 1, 1, 1, 4, 4, 4, 4, 4, 4, 4, 4, 4,
-				   4, 4, };
-static int mt7623_nandc_ceb0_pins[] = { 45, };
-static int mt7623_nandc_ceb0_funcs[] = { 1, };
-static int mt7623_nandc_ceb1_pins[] = { 44, };
-static int mt7623_nandc_ceb1_funcs[] = { 1, };
+static const int mt7623_nandc_pins[] = { 43, 47, 48, 111, 112, 113, 114, 115,
+					 116, 117, 118, 119, 120, 121, };
+static const int mt7623_nandc_funcs[] = { 1, 1, 1, 4, 4, 4, 4, 4, 4, 4, 4, 4,
+					  4, 4, };
+static const int mt7623_nandc_ceb0_pins[] = { 45, };
+static const int mt7623_nandc_ceb0_funcs[] = { 1, };
+static const int mt7623_nandc_ceb1_pins[] = { 44, };
+static const int mt7623_nandc_ceb1_funcs[] = { 1, };
 
 /* RTC */
-static int mt7623_rtc_pins[] = { 10, };
-static int mt7623_rtc_funcs[] = { 1, };
+static const int mt7623_rtc_pins[] = { 10, };
+static const int mt7623_rtc_funcs[] = { 1, };
 
 /* OTG */
-static int mt7623_otg_iddig0_0_pins[] = { 29, };
-static int mt7623_otg_iddig0_0_funcs[] = { 1, };
-static int mt7623_otg_iddig0_1_pins[] = { 44, };
-static int mt7623_otg_iddig0_1_funcs[] = { 2, };
-static int mt7623_otg_iddig0_2_pins[] = { 236, };
-static int mt7623_otg_iddig0_2_funcs[] = { 2, };
-static int mt7623_otg_iddig1_0_pins[] = { 27, };
-static int mt7623_otg_iddig1_0_funcs[] = { 2, };
-static int mt7623_otg_iddig1_1_pins[] = { 47, };
-static int mt7623_otg_iddig1_1_funcs[] = { 2, };
-static int mt7623_otg_iddig1_2_pins[] = { 238, };
-static int mt7623_otg_iddig1_2_funcs[] = { 2, };
-static int mt7623_otg_drv_vbus0_0_pins[] = { 28, };
-static int mt7623_otg_drv_vbus0_0_funcs[] = { 1, };
-static int mt7623_otg_drv_vbus0_1_pins[] = { 45, };
-static int mt7623_otg_drv_vbus0_1_funcs[] = { 2, };
-static int mt7623_otg_drv_vbus0_2_pins[] = { 237, };
-static int mt7623_otg_drv_vbus0_2_funcs[] = { 2, };
-static int mt7623_otg_drv_vbus1_0_pins[] = { 26, };
-static int mt7623_otg_drv_vbus1_0_funcs[] = { 2, };
-static int mt7623_otg_drv_vbus1_1_pins[] = { 48, };
-static int mt7623_otg_drv_vbus1_1_funcs[] = { 2, };
-static int mt7623_otg_drv_vbus1_2_pins[] = { 239, };
-static int mt7623_otg_drv_vbus1_2_funcs[] = { 2, };
+static const int mt7623_otg_iddig0_0_pins[] = { 29, };
+static const int mt7623_otg_iddig0_0_funcs[] = { 1, };
+static const int mt7623_otg_iddig0_1_pins[] = { 44, };
+static const int mt7623_otg_iddig0_1_funcs[] = { 2, };
+static const int mt7623_otg_iddig0_2_pins[] = { 236, };
+static const int mt7623_otg_iddig0_2_funcs[] = { 2, };
+static const int mt7623_otg_iddig1_0_pins[] = { 27, };
+static const int mt7623_otg_iddig1_0_funcs[] = { 2, };
+static const int mt7623_otg_iddig1_1_pins[] = { 47, };
+static const int mt7623_otg_iddig1_1_funcs[] = { 2, };
+static const int mt7623_otg_iddig1_2_pins[] = { 238, };
+static const int mt7623_otg_iddig1_2_funcs[] = { 2, };
+static const int mt7623_otg_drv_vbus0_0_pins[] = { 28, };
+static const int mt7623_otg_drv_vbus0_0_funcs[] = { 1, };
+static const int mt7623_otg_drv_vbus0_1_pins[] = { 45, };
+static const int mt7623_otg_drv_vbus0_1_funcs[] = { 2, };
+static const int mt7623_otg_drv_vbus0_2_pins[] = { 237, };
+static const int mt7623_otg_drv_vbus0_2_funcs[] = { 2, };
+static const int mt7623_otg_drv_vbus1_0_pins[] = { 26, };
+static const int mt7623_otg_drv_vbus1_0_funcs[] = { 2, };
+static const int mt7623_otg_drv_vbus1_1_pins[] = { 48, };
+static const int mt7623_otg_drv_vbus1_1_funcs[] = { 2, };
+static const int mt7623_otg_drv_vbus1_2_pins[] = { 239, };
+static const int mt7623_otg_drv_vbus1_2_funcs[] = { 2, };
 
 /* PCIE */
-static int mt7623_pcie0_0_perst_pins[] = { 208, };
-static int mt7623_pcie0_0_perst_funcs[] = { 3, };
-static int mt7623_pcie0_1_perst_pins[] = { 22, };
-static int mt7623_pcie0_1_perst_funcs[] = { 2, };
-static int mt7623_pcie1_0_perst_pins[] = { 209, };
-static int mt7623_pcie1_0_perst_funcs[] = { 3, };
-static int mt7623_pcie1_1_perst_pins[] = { 23, };
-static int mt7623_pcie1_1_perst_funcs[] = { 2, };
-static int mt7623_pcie2_0_perst_pins[] = { 24, };
-static int mt7623_pcie2_0_perst_funcs[] = { 2, };
-static int mt7623_pcie2_1_perst_pins[] = { 29, };
-static int mt7623_pcie2_1_perst_funcs[] = { 6, };
-static int mt7623_pcie0_0_wake_pins[] = { 28, };
-static int mt7623_pcie0_0_wake_funcs[] = { 6, };
-static int mt7623_pcie0_1_wake_pins[] = { 251, };
-static int mt7623_pcie0_1_wake_funcs[] = { 6, };
-static int mt7623_pcie1_0_wake_pins[] = { 27, };
-static int mt7623_pcie1_0_wake_funcs[] = { 6, };
-static int mt7623_pcie1_1_wake_pins[] = { 253, };
-static int mt7623_pcie1_1_wake_funcs[] = { 6, };
-static int mt7623_pcie2_0_wake_pins[] = { 26, };
-static int mt7623_pcie2_0_wake_funcs[] = { 6, };
-static int mt7623_pcie2_1_wake_pins[] = { 255, };
-static int mt7623_pcie2_1_wake_funcs[] = { 6, };
-static int mt7623_pcie0_clkreq_pins[] = { 250, };
-static int mt7623_pcie0_clkreq_funcs[] = { 6, };
-static int mt7623_pcie1_clkreq_pins[] = { 252, };
-static int mt7623_pcie1_clkreq_funcs[] = { 6, };
-static int mt7623_pcie2_clkreq_pins[] = { 254, };
-static int mt7623_pcie2_clkreq_funcs[] = { 6, };
+static const int mt7623_pcie0_0_perst_pins[] = { 208, };
+static const int mt7623_pcie0_0_perst_funcs[] = { 3, };
+static const int mt7623_pcie0_1_perst_pins[] = { 22, };
+static const int mt7623_pcie0_1_perst_funcs[] = { 2, };
+static const int mt7623_pcie1_0_perst_pins[] = { 209, };
+static const int mt7623_pcie1_0_perst_funcs[] = { 3, };
+static const int mt7623_pcie1_1_perst_pins[] = { 23, };
+static const int mt7623_pcie1_1_perst_funcs[] = { 2, };
+static const int mt7623_pcie2_0_perst_pins[] = { 24, };
+static const int mt7623_pcie2_0_perst_funcs[] = { 2, };
+static const int mt7623_pcie2_1_perst_pins[] = { 29, };
+static const int mt7623_pcie2_1_perst_funcs[] = { 6, };
+static const int mt7623_pcie0_0_wake_pins[] = { 28, };
+static const int mt7623_pcie0_0_wake_funcs[] = { 6, };
+static const int mt7623_pcie0_1_wake_pins[] = { 251, };
+static const int mt7623_pcie0_1_wake_funcs[] = { 6, };
+static const int mt7623_pcie1_0_wake_pins[] = { 27, };
+static const int mt7623_pcie1_0_wake_funcs[] = { 6, };
+static const int mt7623_pcie1_1_wake_pins[] = { 253, };
+static const int mt7623_pcie1_1_wake_funcs[] = { 6, };
+static const int mt7623_pcie2_0_wake_pins[] = { 26, };
+static const int mt7623_pcie2_0_wake_funcs[] = { 6, };
+static const int mt7623_pcie2_1_wake_pins[] = { 255, };
+static const int mt7623_pcie2_1_wake_funcs[] = { 6, };
+static const int mt7623_pcie0_clkreq_pins[] = { 250, };
+static const int mt7623_pcie0_clkreq_funcs[] = { 6, };
+static const int mt7623_pcie1_clkreq_pins[] = { 252, };
+static const int mt7623_pcie1_clkreq_funcs[] = { 6, };
+static const int mt7623_pcie2_clkreq_pins[] = { 254, };
+static const int mt7623_pcie2_clkreq_funcs[] = { 6, };
 /* the pcie_*_rev are only used for MT7623 */
-static int mt7623_pcie0_0_rev_perst_pins[] = { 208, };
-static int mt7623_pcie0_0_rev_perst_funcs[] = { 11, };
-static int mt7623_pcie0_1_rev_perst_pins[] = { 22, };
-static int mt7623_pcie0_1_rev_perst_funcs[] = { 10, };
-static int mt7623_pcie1_0_rev_perst_pins[] = { 209, };
-static int mt7623_pcie1_0_rev_perst_funcs[] = { 11, };
-static int mt7623_pcie1_1_rev_perst_pins[] = { 23, };
-static int mt7623_pcie1_1_rev_perst_funcs[] = { 10, };
-static int mt7623_pcie2_0_rev_perst_pins[] = { 24, };
-static int mt7623_pcie2_0_rev_perst_funcs[] = { 11, };
-static int mt7623_pcie2_1_rev_perst_pins[] = { 29, };
-static int mt7623_pcie2_1_rev_perst_funcs[] = { 14, };
+static const int mt7623_pcie0_0_rev_perst_pins[] = { 208, };
+static const int mt7623_pcie0_0_rev_perst_funcs[] = { 11, };
+static const int mt7623_pcie0_1_rev_perst_pins[] = { 22, };
+static const int mt7623_pcie0_1_rev_perst_funcs[] = { 10, };
+static const int mt7623_pcie1_0_rev_perst_pins[] = { 209, };
+static const int mt7623_pcie1_0_rev_perst_funcs[] = { 11, };
+static const int mt7623_pcie1_1_rev_perst_pins[] = { 23, };
+static const int mt7623_pcie1_1_rev_perst_funcs[] = { 10, };
+static const int mt7623_pcie2_0_rev_perst_pins[] = { 24, };
+static const int mt7623_pcie2_0_rev_perst_funcs[] = { 11, };
+static const int mt7623_pcie2_1_rev_perst_pins[] = { 29, };
+static const int mt7623_pcie2_1_rev_perst_funcs[] = { 14, };
 
 /* PCM */
-static int mt7623_pcm_clk_0_pins[] = { 18, };
-static int mt7623_pcm_clk_0_funcs[] = { 1, };
-static int mt7623_pcm_clk_1_pins[] = { 17, };
-static int mt7623_pcm_clk_1_funcs[] = { 3, };
-static int mt7623_pcm_clk_2_pins[] = { 35, };
-static int mt7623_pcm_clk_2_funcs[] = { 3, };
-static int mt7623_pcm_clk_3_pins[] = { 50, };
-static int mt7623_pcm_clk_3_funcs[] = { 3, };
-static int mt7623_pcm_clk_4_pins[] = { 74, };
-static int mt7623_pcm_clk_4_funcs[] = { 3, };
-static int mt7623_pcm_clk_5_pins[] = { 191, };
-static int mt7623_pcm_clk_5_funcs[] = { 3, };
-static int mt7623_pcm_clk_6_pins[] = { 196, };
-static int mt7623_pcm_clk_6_funcs[] = { 3, };
-static int mt7623_pcm_sync_0_pins[] = { 19, };
-static int mt7623_pcm_sync_0_funcs[] = { 1, };
-static int mt7623_pcm_sync_1_pins[] = { 30, };
-static int mt7623_pcm_sync_1_funcs[] = { 3, };
-static int mt7623_pcm_sync_2_pins[] = { 36, };
-static int mt7623_pcm_sync_2_funcs[] = { 3, };
-static int mt7623_pcm_sync_3_pins[] = { 52, };
-static int mt7623_pcm_sync_3_funcs[] = { 31, };
-static int mt7623_pcm_sync_4_pins[] = { 73, };
-static int mt7623_pcm_sync_4_funcs[] = { 3, };
-static int mt7623_pcm_sync_5_pins[] = { 192, };
-static int mt7623_pcm_sync_5_funcs[] = { 3, };
-static int mt7623_pcm_sync_6_pins[] = { 197, };
-static int mt7623_pcm_sync_6_funcs[] = { 3, };
-static int mt7623_pcm_rx_0_pins[] = { 20, };
-static int mt7623_pcm_rx_0_funcs[] = { 1, };
-static int mt7623_pcm_rx_1_pins[] = { 16, };
-static int mt7623_pcm_rx_1_funcs[] = { 3, };
-static int mt7623_pcm_rx_2_pins[] = { 34, };
-static int mt7623_pcm_rx_2_funcs[] = { 3, };
-static int mt7623_pcm_rx_3_pins[] = { 51, };
-static int mt7623_pcm_rx_3_funcs[] = { 3, };
-static int mt7623_pcm_rx_4_pins[] = { 72, };
-static int mt7623_pcm_rx_4_funcs[] = { 3, };
-static int mt7623_pcm_rx_5_pins[] = { 190, };
-static int mt7623_pcm_rx_5_funcs[] = { 3, };
-static int mt7623_pcm_rx_6_pins[] = { 195, };
-static int mt7623_pcm_rx_6_funcs[] = { 3, };
-static int mt7623_pcm_tx_0_pins[] = { 21, };
-static int mt7623_pcm_tx_0_funcs[] = { 1, };
-static int mt7623_pcm_tx_1_pins[] = { 32, };
-static int mt7623_pcm_tx_1_funcs[] = { 3, };
-static int mt7623_pcm_tx_2_pins[] = { 33, };
-static int mt7623_pcm_tx_2_funcs[] = { 3, };
-static int mt7623_pcm_tx_3_pins[] = { 38, };
-static int mt7623_pcm_tx_3_funcs[] = { 3, };
-static int mt7623_pcm_tx_4_pins[] = { 49, };
-static int mt7623_pcm_tx_4_funcs[] = { 3, };
-static int mt7623_pcm_tx_5_pins[] = { 189, };
-static int mt7623_pcm_tx_5_funcs[] = { 3, };
-static int mt7623_pcm_tx_6_pins[] = { 194, };
-static int mt7623_pcm_tx_6_funcs[] = { 3, };
+static const int mt7623_pcm_clk_0_pins[] = { 18, };
+static const int mt7623_pcm_clk_0_funcs[] = { 1, };
+static const int mt7623_pcm_clk_1_pins[] = { 17, };
+static const int mt7623_pcm_clk_1_funcs[] = { 3, };
+static const int mt7623_pcm_clk_2_pins[] = { 35, };
+static const int mt7623_pcm_clk_2_funcs[] = { 3, };
+static const int mt7623_pcm_clk_3_pins[] = { 50, };
+static const int mt7623_pcm_clk_3_funcs[] = { 3, };
+static const int mt7623_pcm_clk_4_pins[] = { 74, };
+static const int mt7623_pcm_clk_4_funcs[] = { 3, };
+static const int mt7623_pcm_clk_5_pins[] = { 191, };
+static const int mt7623_pcm_clk_5_funcs[] = { 3, };
+static const int mt7623_pcm_clk_6_pins[] = { 196, };
+static const int mt7623_pcm_clk_6_funcs[] = { 3, };
+static const int mt7623_pcm_sync_0_pins[] = { 19, };
+static const int mt7623_pcm_sync_0_funcs[] = { 1, };
+static const int mt7623_pcm_sync_1_pins[] = { 30, };
+static const int mt7623_pcm_sync_1_funcs[] = { 3, };
+static const int mt7623_pcm_sync_2_pins[] = { 36, };
+static const int mt7623_pcm_sync_2_funcs[] = { 3, };
+static const int mt7623_pcm_sync_3_pins[] = { 52, };
+static const int mt7623_pcm_sync_3_funcs[] = { 31, };
+static const int mt7623_pcm_sync_4_pins[] = { 73, };
+static const int mt7623_pcm_sync_4_funcs[] = { 3, };
+static const int mt7623_pcm_sync_5_pins[] = { 192, };
+static const int mt7623_pcm_sync_5_funcs[] = { 3, };
+static const int mt7623_pcm_sync_6_pins[] = { 197, };
+static const int mt7623_pcm_sync_6_funcs[] = { 3, };
+static const int mt7623_pcm_rx_0_pins[] = { 20, };
+static const int mt7623_pcm_rx_0_funcs[] = { 1, };
+static const int mt7623_pcm_rx_1_pins[] = { 16, };
+static const int mt7623_pcm_rx_1_funcs[] = { 3, };
+static const int mt7623_pcm_rx_2_pins[] = { 34, };
+static const int mt7623_pcm_rx_2_funcs[] = { 3, };
+static const int mt7623_pcm_rx_3_pins[] = { 51, };
+static const int mt7623_pcm_rx_3_funcs[] = { 3, };
+static const int mt7623_pcm_rx_4_pins[] = { 72, };
+static const int mt7623_pcm_rx_4_funcs[] = { 3, };
+static const int mt7623_pcm_rx_5_pins[] = { 190, };
+static const int mt7623_pcm_rx_5_funcs[] = { 3, };
+static const int mt7623_pcm_rx_6_pins[] = { 195, };
+static const int mt7623_pcm_rx_6_funcs[] = { 3, };
+static const int mt7623_pcm_tx_0_pins[] = { 21, };
+static const int mt7623_pcm_tx_0_funcs[] = { 1, };
+static const int mt7623_pcm_tx_1_pins[] = { 32, };
+static const int mt7623_pcm_tx_1_funcs[] = { 3, };
+static const int mt7623_pcm_tx_2_pins[] = { 33, };
+static const int mt7623_pcm_tx_2_funcs[] = { 3, };
+static const int mt7623_pcm_tx_3_pins[] = { 38, };
+static const int mt7623_pcm_tx_3_funcs[] = { 3, };
+static const int mt7623_pcm_tx_4_pins[] = { 49, };
+static const int mt7623_pcm_tx_4_funcs[] = { 3, };
+static const int mt7623_pcm_tx_5_pins[] = { 189, };
+static const int mt7623_pcm_tx_5_funcs[] = { 3, };
+static const int mt7623_pcm_tx_6_pins[] = { 194, };
+static const int mt7623_pcm_tx_6_funcs[] = { 3, };
 
 /* PWM */
-static int mt7623_pwm_ch1_0_pins[] = { 203, };
-static int mt7623_pwm_ch1_0_funcs[] = { 1, };
-static int mt7623_pwm_ch1_1_pins[] = { 208, };
-static int mt7623_pwm_ch1_1_funcs[] = { 2, };
-static int mt7623_pwm_ch1_2_pins[] = { 72, };
-static int mt7623_pwm_ch1_2_funcs[] = { 4, };
-static int mt7623_pwm_ch1_3_pins[] = { 88, };
-static int mt7623_pwm_ch1_3_funcs[] = { 3, };
-static int mt7623_pwm_ch1_4_pins[] = { 108, };
-static int mt7623_pwm_ch1_4_funcs[] = { 3, };
-static int mt7623_pwm_ch2_0_pins[] = { 204, };
-static int mt7623_pwm_ch2_0_funcs[] = { 1, };
-static int mt7623_pwm_ch2_1_pins[] = { 53, };
-static int mt7623_pwm_ch2_1_funcs[] = { 5, };
-static int mt7623_pwm_ch2_2_pins[] = { 88, };
-static int mt7623_pwm_ch2_2_funcs[] = { 6, };
-static int mt7623_pwm_ch2_3_pins[] = { 108, };
-static int mt7623_pwm_ch2_3_funcs[] = { 6, };
-static int mt7623_pwm_ch2_4_pins[] = { 209, };
-static int mt7623_pwm_ch2_4_funcs[] = { 5, };
-static int mt7623_pwm_ch3_0_pins[] = { 205, };
-static int mt7623_pwm_ch3_0_funcs[] = { 1, };
-static int mt7623_pwm_ch3_1_pins[] = { 55, };
-static int mt7623_pwm_ch3_1_funcs[] = { 5, };
-static int mt7623_pwm_ch3_2_pins[] = { 89, };
-static int mt7623_pwm_ch3_2_funcs[] = { 6, };
-static int mt7623_pwm_ch3_3_pins[] = { 109, };
-static int mt7623_pwm_ch3_3_funcs[] = { 6, };
-static int mt7623_pwm_ch4_0_pins[] = { 206, };
-static int mt7623_pwm_ch4_0_funcs[] = { 1, };
-static int mt7623_pwm_ch4_1_pins[] = { 90, };
-static int mt7623_pwm_ch4_1_funcs[] = { 6, };
-static int mt7623_pwm_ch4_2_pins[] = { 110, };
-static int mt7623_pwm_ch4_2_funcs[] = { 6, };
-static int mt7623_pwm_ch4_3_pins[] = { 124, };
-static int mt7623_pwm_ch4_3_funcs[] = { 5, };
-static int mt7623_pwm_ch5_0_pins[] = { 207, };
-static int mt7623_pwm_ch5_0_funcs[] = { 1, };
-static int mt7623_pwm_ch5_1_pins[] = { 125, };
-static int mt7623_pwm_ch5_1_funcs[] = { 5, };
+static const int mt7623_pwm_ch1_0_pins[] = { 203, };
+static const int mt7623_pwm_ch1_0_funcs[] = { 1, };
+static const int mt7623_pwm_ch1_1_pins[] = { 208, };
+static const int mt7623_pwm_ch1_1_funcs[] = { 2, };
+static const int mt7623_pwm_ch1_2_pins[] = { 72, };
+static const int mt7623_pwm_ch1_2_funcs[] = { 4, };
+static const int mt7623_pwm_ch1_3_pins[] = { 88, };
+static const int mt7623_pwm_ch1_3_funcs[] = { 3, };
+static const int mt7623_pwm_ch1_4_pins[] = { 108, };
+static const int mt7623_pwm_ch1_4_funcs[] = { 3, };
+static const int mt7623_pwm_ch2_0_pins[] = { 204, };
+static const int mt7623_pwm_ch2_0_funcs[] = { 1, };
+static const int mt7623_pwm_ch2_1_pins[] = { 53, };
+static const int mt7623_pwm_ch2_1_funcs[] = { 5, };
+static const int mt7623_pwm_ch2_2_pins[] = { 88, };
+static const int mt7623_pwm_ch2_2_funcs[] = { 6, };
+static const int mt7623_pwm_ch2_3_pins[] = { 108, };
+static const int mt7623_pwm_ch2_3_funcs[] = { 6, };
+static const int mt7623_pwm_ch2_4_pins[] = { 209, };
+static const int mt7623_pwm_ch2_4_funcs[] = { 5, };
+static const int mt7623_pwm_ch3_0_pins[] = { 205, };
+static const int mt7623_pwm_ch3_0_funcs[] = { 1, };
+static const int mt7623_pwm_ch3_1_pins[] = { 55, };
+static const int mt7623_pwm_ch3_1_funcs[] = { 5, };
+static const int mt7623_pwm_ch3_2_pins[] = { 89, };
+static const int mt7623_pwm_ch3_2_funcs[] = { 6, };
+static const int mt7623_pwm_ch3_3_pins[] = { 109, };
+static const int mt7623_pwm_ch3_3_funcs[] = { 6, };
+static const int mt7623_pwm_ch4_0_pins[] = { 206, };
+static const int mt7623_pwm_ch4_0_funcs[] = { 1, };
+static const int mt7623_pwm_ch4_1_pins[] = { 90, };
+static const int mt7623_pwm_ch4_1_funcs[] = { 6, };
+static const int mt7623_pwm_ch4_2_pins[] = { 110, };
+static const int mt7623_pwm_ch4_2_funcs[] = { 6, };
+static const int mt7623_pwm_ch4_3_pins[] = { 124, };
+static const int mt7623_pwm_ch4_3_funcs[] = { 5, };
+static const int mt7623_pwm_ch5_0_pins[] = { 207, };
+static const int mt7623_pwm_ch5_0_funcs[] = { 1, };
+static const int mt7623_pwm_ch5_1_pins[] = { 125, };
+static const int mt7623_pwm_ch5_1_funcs[] = { 5, };
 
 /* PWRAP */
-static int mt7623_pwrap_pins[] = { 0, 1, 2, 3, 4, 5, 6, };
-static int mt7623_pwrap_funcs[] = { 1, 1, 1, 1, 1, 1, 1, };
+static const int mt7623_pwrap_pins[] = { 0, 1, 2, 3, 4, 5, 6, };
+static const int mt7623_pwrap_funcs[] = { 1, 1, 1, 1, 1, 1, 1, };
 
 /* SPDIF */
-static int mt7623_spdif_in0_0_pins[] = { 56, };
-static int mt7623_spdif_in0_0_funcs[] = { 3, };
-static int mt7623_spdif_in0_1_pins[] = { 201, };
-static int mt7623_spdif_in0_1_funcs[] = { 1, };
-static int mt7623_spdif_in1_0_pins[] = { 54, };
-static int mt7623_spdif_in1_0_funcs[] = { 3, };
-static int mt7623_spdif_in1_1_pins[] = { 202, };
-static int mt7623_spdif_in1_1_funcs[] = { 1, };
-static int mt7623_spdif_out_pins[] = { 202, };
-static int mt7623_spdif_out_funcs[] = { 1, };
+static const int mt7623_spdif_in0_0_pins[] = { 56, };
+static const int mt7623_spdif_in0_0_funcs[] = { 3, };
+static const int mt7623_spdif_in0_1_pins[] = { 201, };
+static const int mt7623_spdif_in0_1_funcs[] = { 1, };
+static const int mt7623_spdif_in1_0_pins[] = { 54, };
+static const int mt7623_spdif_in1_0_funcs[] = { 3, };
+static const int mt7623_spdif_in1_1_pins[] = { 202, };
+static const int mt7623_spdif_in1_1_funcs[] = { 1, };
+static const int mt7623_spdif_out_pins[] = { 202, };
+static const int mt7623_spdif_out_funcs[] = { 1, };
 
 /* SPI */
-static int mt7623_spi0_pins[] = { 53, 54, 55, 56, };
-static int mt7623_spi0_funcs[] = { 1, 1, 1, 1, };
-static int mt7623_spi1_pins[] = { 7, 199, 8, 9, };
-static int mt7623_spi1_funcs[] = { 1, 1, 1, 1, };
-static int mt7623_spi2_pins[] = { 101, 104, 102, 103, };
-static int mt7623_spi2_funcs[] = { 1, 1, 1, 1, };
+static const int mt7623_spi0_pins[] = { 53, 54, 55, 56, };
+static const int mt7623_spi0_funcs[] = { 1, 1, 1, 1, };
+static const int mt7623_spi1_pins[] = { 7, 199, 8, 9, };
+static const int mt7623_spi1_funcs[] = { 1, 1, 1, 1, };
+static const int mt7623_spi2_pins[] = { 101, 104, 102, 103, };
+static const int mt7623_spi2_funcs[] = { 1, 1, 1, 1, };
 
 /* UART */
-static int mt7623_uart0_0_txd_rxd_pins[] = { 79, 80, };
-static int mt7623_uart0_0_txd_rxd_funcs[] = { 1, 1, };
-static int mt7623_uart0_1_txd_rxd_pins[] = { 87, 88, };
-static int mt7623_uart0_1_txd_rxd_funcs[] = { 5, 5, };
-static int mt7623_uart0_2_txd_rxd_pins[] = { 107, 108, };
-static int mt7623_uart0_2_txd_rxd_funcs[] = { 5, 5, };
-static int mt7623_uart0_3_txd_rxd_pins[] = { 123, 122, };
-static int mt7623_uart0_3_txd_rxd_funcs[] = { 5, 5, };
-static int mt7623_uart0_rts_cts_pins[] = { 22, 23, };
-static int mt7623_uart0_rts_cts_funcs[] = { 1, 1, };
-static int mt7623_uart1_0_txd_rxd_pins[] = { 81, 82, };
-static int mt7623_uart1_0_txd_rxd_funcs[] = { 1, 1, };
-static int mt7623_uart1_1_txd_rxd_pins[] = { 89, 90, };
-static int mt7623_uart1_1_txd_rxd_funcs[] = { 5, 5, };
-static int mt7623_uart1_2_txd_rxd_pins[] = { 109, 110, };
-static int mt7623_uart1_2_txd_rxd_funcs[] = { 5, 5, };
-static int mt7623_uart1_rts_cts_pins[] = { 24, 25, };
-static int mt7623_uart1_rts_cts_funcs[] = { 1, 1, };
-static int mt7623_uart2_0_txd_rxd_pins[] = { 14, 15, };
-static int mt7623_uart2_0_txd_rxd_funcs[] = { 1, 1, };
-static int mt7623_uart2_1_txd_rxd_pins[] = { 200, 201, };
-static int mt7623_uart2_1_txd_rxd_funcs[] = { 6, 6, };
-static int mt7623_uart2_rts_cts_pins[] = { 242, 243, };
-static int mt7623_uart2_rts_cts_funcs[] = { 1, 1, };
-static int mt7623_uart3_txd_rxd_pins[] = { 242, 243, };
-static int mt7623_uart3_txd_rxd_funcs[] = { 2, 2, };
-static int mt7623_uart3_rts_cts_pins[] = { 26, 27, };
-static int mt7623_uart3_rts_cts_funcs[] = { 1, 1, };
+static const int mt7623_uart0_0_txd_rxd_pins[] = { 79, 80, };
+static const int mt7623_uart0_0_txd_rxd_funcs[] = { 1, 1, };
+static const int mt7623_uart0_1_txd_rxd_pins[] = { 87, 88, };
+static const int mt7623_uart0_1_txd_rxd_funcs[] = { 5, 5, };
+static const int mt7623_uart0_2_txd_rxd_pins[] = { 107, 108, };
+static const int mt7623_uart0_2_txd_rxd_funcs[] = { 5, 5, };
+static const int mt7623_uart0_3_txd_rxd_pins[] = { 123, 122, };
+static const int mt7623_uart0_3_txd_rxd_funcs[] = { 5, 5, };
+static const int mt7623_uart0_rts_cts_pins[] = { 22, 23, };
+static const int mt7623_uart0_rts_cts_funcs[] = { 1, 1, };
+static const int mt7623_uart1_0_txd_rxd_pins[] = { 81, 82, };
+static const int mt7623_uart1_0_txd_rxd_funcs[] = { 1, 1, };
+static const int mt7623_uart1_1_txd_rxd_pins[] = { 89, 90, };
+static const int mt7623_uart1_1_txd_rxd_funcs[] = { 5, 5, };
+static const int mt7623_uart1_2_txd_rxd_pins[] = { 109, 110, };
+static const int mt7623_uart1_2_txd_rxd_funcs[] = { 5, 5, };
+static const int mt7623_uart1_rts_cts_pins[] = { 24, 25, };
+static const int mt7623_uart1_rts_cts_funcs[] = { 1, 1, };
+static const int mt7623_uart2_0_txd_rxd_pins[] = { 14, 15, };
+static const int mt7623_uart2_0_txd_rxd_funcs[] = { 1, 1, };
+static const int mt7623_uart2_1_txd_rxd_pins[] = { 200, 201, };
+static const int mt7623_uart2_1_txd_rxd_funcs[] = { 6, 6, };
+static const int mt7623_uart2_rts_cts_pins[] = { 242, 243, };
+static const int mt7623_uart2_rts_cts_funcs[] = { 1, 1, };
+static const int mt7623_uart3_txd_rxd_pins[] = { 242, 243, };
+static const int mt7623_uart3_txd_rxd_funcs[] = { 2, 2, };
+static const int mt7623_uart3_rts_cts_pins[] = { 26, 27, };
+static const int mt7623_uart3_rts_cts_funcs[] = { 1, 1, };
 
 /* Watchdog */
-static int mt7623_watchdog_0_pins[] = { 11, };
-static int mt7623_watchdog_0_funcs[] = { 1, };
-static int mt7623_watchdog_1_pins[] = { 121, };
-static int mt7623_watchdog_1_funcs[] = { 5, };
+static const int mt7623_watchdog_0_pins[] = { 11, };
+static const int mt7623_watchdog_0_funcs[] = { 1, };
+static const int mt7623_watchdog_1_pins[] = { 121, };
+static const int mt7623_watchdog_1_funcs[] = { 5, };
 
 static const struct mtk_group_desc mt7623_groups[] = {
 	PINCTRL_PIN_GROUP("aud_ext_clk0", mt7623_aud_ext_clk0),
@@ -1362,7 +1362,7 @@ static const struct mtk_function_desc mt7623_functions[] = {
 	{"watchdog", mt7623_wdt_groups, ARRAY_SIZE(mt7623_wdt_groups)},
 };
 
-static struct mtk_pinctrl_soc mt7623_data = {
+static const struct mtk_pinctrl_soc mt7623_data = {
 	.name = "mt7623_pinctrl",
 	.reg_cal = mt7623_reg_cals,
 	.pins = mt7623_pins,
diff --git a/drivers/pinctrl/mediatek/pinctrl-mt7629.c b/drivers/pinctrl/mediatek/pinctrl-mt7629.c
index 5d4bec2..45d4def 100644
--- a/drivers/pinctrl/mediatek/pinctrl-mt7629.c
+++ b/drivers/pinctrl/mediatek/pinctrl-mt7629.c
@@ -180,118 +180,118 @@ static const struct mtk_pin_desc mt7629_pins[] = {
  */
 
 /* WF 5G */
-static int mt7629_wf0_5g_pins[] = { 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, };
-static int mt7629_wf0_5g_funcs[] = { 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, };
+static const int mt7629_wf0_5g_pins[] = { 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, };
+static const int mt7629_wf0_5g_funcs[] = { 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, };
 
 /* LED for EPHY */
-static int mt7629_ephy_leds_pins[] = { 12, 13, 14, 15, 16, 17, 18, };
-static int mt7629_ephy_leds_funcs[] = { 1, 1, 1, 1, 1, 1, 1, };
-static int mt7629_ephy_led0_pins[] = { 12, };
-static int mt7629_ephy_led0_funcs[] = { 1, };
-static int mt7629_ephy_led1_pins[] = { 13, };
-static int mt7629_ephy_led1_funcs[] = { 1, };
-static int mt7629_ephy_led2_pins[] = { 14, };
-static int mt7629_ephy_led2_funcs[] = { 1, };
-static int mt7629_ephy_led3_pins[] = { 15, };
-static int mt7629_ephy_led3_funcs[] = { 1, };
-static int mt7629_ephy_led4_pins[] = { 16, };
-static int mt7629_ephy_led4_funcs[] = { 1, };
-static int mt7629_wf2g_led_pins[] = { 17, };
-static int mt7629_wf2g_led_funcs[] = { 1, };
-static int mt7629_wf5g_led_pins[] = { 18, };
-static int mt7629_wf5g_led_funcs[] = { 1, };
+static const int mt7629_ephy_leds_pins[] = { 12, 13, 14, 15, 16, 17, 18, };
+static const int mt7629_ephy_leds_funcs[] = { 1, 1, 1, 1, 1, 1, 1, };
+static const int mt7629_ephy_led0_pins[] = { 12, };
+static const int mt7629_ephy_led0_funcs[] = { 1, };
+static const int mt7629_ephy_led1_pins[] = { 13, };
+static const int mt7629_ephy_led1_funcs[] = { 1, };
+static const int mt7629_ephy_led2_pins[] = { 14, };
+static const int mt7629_ephy_led2_funcs[] = { 1, };
+static const int mt7629_ephy_led3_pins[] = { 15, };
+static const int mt7629_ephy_led3_funcs[] = { 1, };
+static const int mt7629_ephy_led4_pins[] = { 16, };
+static const int mt7629_ephy_led4_funcs[] = { 1, };
+static const int mt7629_wf2g_led_pins[] = { 17, };
+static const int mt7629_wf2g_led_funcs[] = { 1, };
+static const int mt7629_wf5g_led_pins[] = { 18, };
+static const int mt7629_wf5g_led_funcs[] = { 1, };
 
 /* LED for EPHY used as JTAG */
-static int mt7629_ephy_leds_jtag_pins[] = { 12, 13, 14, 15, 16, };
-static int mt7629_ephy_leds_jtag_funcs[] = { 7, 7, 7, 7, 7, };
+static const int mt7629_ephy_leds_jtag_pins[] = { 12, 13, 14, 15, 16, };
+static const int mt7629_ephy_leds_jtag_funcs[] = { 7, 7, 7, 7, 7, };
 
 /* Watchdog */
-static int mt7629_watchdog_pins[] = { 11, };
-static int mt7629_watchdog_funcs[] = { 1, };
+static const int mt7629_watchdog_pins[] = { 11, };
+static const int mt7629_watchdog_funcs[] = { 1, };
 
 /* LED for GPHY */
-static int mt7629_gphy_leds_0_pins[] = { 21, 22, 23, };
-static int mt7629_gphy_leds_0_funcs[] = { 2, 2, 2, };
-static int mt7629_gphy_led1_0_pins[] = { 21, };
-static int mt7629_gphy_led1_0_funcs[] = { 2, };
-static int mt7629_gphy_led2_0_pins[] = { 22, };
-static int mt7629_gphy_led2_0_funcs[] = { 2, };
-static int mt7629_gphy_led3_0_pins[] = { 23, };
-static int mt7629_gphy_led3_0_funcs[] = { 2, };
-static int mt7629_gphy_leds_1_pins[] = { 57, 58, 59, };
-static int mt7629_gphy_leds_1_funcs[] = { 1, 1, 1, };
-static int mt7629_gphy_led1_1_pins[] = { 57, };
-static int mt7629_gphy_led1_1_funcs[] = { 1, };
-static int mt7629_gphy_led2_1_pins[] = { 58, };
-static int mt7629_gphy_led2_1_funcs[] = { 1, };
-static int mt7629_gphy_led3_1_pins[] = { 59, };
-static int mt7629_gphy_led3_1_funcs[] = { 1, };
+static const int mt7629_gphy_leds_0_pins[] = { 21, 22, 23, };
+static const int mt7629_gphy_leds_0_funcs[] = { 2, 2, 2, };
+static const int mt7629_gphy_led1_0_pins[] = { 21, };
+static const int mt7629_gphy_led1_0_funcs[] = { 2, };
+static const int mt7629_gphy_led2_0_pins[] = { 22, };
+static const int mt7629_gphy_led2_0_funcs[] = { 2, };
+static const int mt7629_gphy_led3_0_pins[] = { 23, };
+static const int mt7629_gphy_led3_0_funcs[] = { 2, };
+static const int mt7629_gphy_leds_1_pins[] = { 57, 58, 59, };
+static const int mt7629_gphy_leds_1_funcs[] = { 1, 1, 1, };
+static const int mt7629_gphy_led1_1_pins[] = { 57, };
+static const int mt7629_gphy_led1_1_funcs[] = { 1, };
+static const int mt7629_gphy_led2_1_pins[] = { 58, };
+static const int mt7629_gphy_led2_1_funcs[] = { 1, };
+static const int mt7629_gphy_led3_1_pins[] = { 59, };
+static const int mt7629_gphy_led3_1_funcs[] = { 1, };
 
 /* I2C */
-static int mt7629_i2c_0_pins[] = { 19, 20, };
-static int mt7629_i2c_0_funcs[] = { 1, 1, };
-static int mt7629_i2c_1_pins[] = { 53, 54, };
-static int mt7629_i2c_1_funcs[] = { 1, 1, };
+static const int mt7629_i2c_0_pins[] = { 19, 20, };
+static const int mt7629_i2c_0_funcs[] = { 1, 1, };
+static const int mt7629_i2c_1_pins[] = { 53, 54, };
+static const int mt7629_i2c_1_funcs[] = { 1, 1, };
 
 /* SPI */
-static int mt7629_spi_0_pins[] = { 21, 22, 23, 24, };
-static int mt7629_spi_0_funcs[] = { 1, 1, 1, 1, };
-static int mt7629_spi_1_pins[] = { 62, 63, 64, 65, };
-static int mt7629_spi_1_funcs[] = { 1, 1, 1, 1, };
-static int mt7629_spi_wp_pins[] = { 66, };
-static int mt7629_spi_wp_funcs[] = { 1, };
-static int mt7629_spi_hold_pins[] = { 67, };
-static int mt7629_spi_hold_funcs[] = { 1, };
+static const int mt7629_spi_0_pins[] = { 21, 22, 23, 24, };
+static const int mt7629_spi_0_funcs[] = { 1, 1, 1, 1, };
+static const int mt7629_spi_1_pins[] = { 62, 63, 64, 65, };
+static const int mt7629_spi_1_funcs[] = { 1, 1, 1, 1, };
+static const int mt7629_spi_wp_pins[] = { 66, };
+static const int mt7629_spi_wp_funcs[] = { 1, };
+static const int mt7629_spi_hold_pins[] = { 67, };
+static const int mt7629_spi_hold_funcs[] = { 1, };
 
 /* UART */
-static int mt7629_uart1_0_txd_rxd_pins[] = { 25, 26, };
-static int mt7629_uart1_0_txd_rxd_funcs[] = { 1, 1, };
-static int mt7629_uart1_1_txd_rxd_pins[] = { 53, 54, };
-static int mt7629_uart1_1_txd_rxd_funcs[] = { 2, 2, };
-static int mt7629_uart2_0_txd_rxd_pins[] = { 29, 30, };
-static int mt7629_uart2_0_txd_rxd_funcs[] = { 1, 1, };
-static int mt7629_uart2_1_txd_rxd_pins[] = { 57, 58, };
-static int mt7629_uart2_1_txd_rxd_funcs[] = { 2, 2, };
-static int mt7629_uart1_0_cts_rts_pins[] = { 27, 28, };
-static int mt7629_uart1_0_cts_rts_funcs[] = { 1, 1, };
-static int mt7629_uart1_1_cts_rts_pins[] = { 55, 56, };
-static int mt7629_uart1_1_cts_rts_funcs[] = { 2, 2, };
-static int mt7629_uart2_0_cts_rts_pins[] = { 31, 32, };
-static int mt7629_uart2_0_cts_rts_funcs[] = { 1, 1, };
-static int mt7629_uart2_1_cts_rts_pins[] = { 59, 60, };
-static int mt7629_uart2_1_cts_rts_funcs[] = { 2, 2, };
-static int mt7629_uart0_txd_rxd_pins[] = { 68, 69, };
-static int mt7629_uart0_txd_rxd_funcs[] = { 1, 1, };
+static const int mt7629_uart1_0_txd_rxd_pins[] = { 25, 26, };
+static const int mt7629_uart1_0_txd_rxd_funcs[] = { 1, 1, };
+static const int mt7629_uart1_1_txd_rxd_pins[] = { 53, 54, };
+static const int mt7629_uart1_1_txd_rxd_funcs[] = { 2, 2, };
+static const int mt7629_uart2_0_txd_rxd_pins[] = { 29, 30, };
+static const int mt7629_uart2_0_txd_rxd_funcs[] = { 1, 1, };
+static const int mt7629_uart2_1_txd_rxd_pins[] = { 57, 58, };
+static const int mt7629_uart2_1_txd_rxd_funcs[] = { 2, 2, };
+static const int mt7629_uart1_0_cts_rts_pins[] = { 27, 28, };
+static const int mt7629_uart1_0_cts_rts_funcs[] = { 1, 1, };
+static const int mt7629_uart1_1_cts_rts_pins[] = { 55, 56, };
+static const int mt7629_uart1_1_cts_rts_funcs[] = { 2, 2, };
+static const int mt7629_uart2_0_cts_rts_pins[] = { 31, 32, };
+static const int mt7629_uart2_0_cts_rts_funcs[] = { 1, 1, };
+static const int mt7629_uart2_1_cts_rts_pins[] = { 59, 60, };
+static const int mt7629_uart2_1_cts_rts_funcs[] = { 2, 2, };
+static const int mt7629_uart0_txd_rxd_pins[] = { 68, 69, };
+static const int mt7629_uart0_txd_rxd_funcs[] = { 1, 1, };
 
 /* MDC/MDIO */
-static int mt7629_mdc_mdio_pins[] = { 49, 50, };
-static int mt7629_mdc_mdio_funcs[] = { 1, 1, };
+static const int mt7629_mdc_mdio_pins[] = { 49, 50, };
+static const int mt7629_mdc_mdio_funcs[] = { 1, 1, };
 
 /* PCIE */
-static int mt7629_pcie_pereset_pins[] = { 51, };
-static int mt7629_pcie_pereset_funcs[] = { 1, };
-static int mt7629_pcie_wake_pins[] = { 55, };
-static int mt7629_pcie_wake_funcs[] = { 1, };
-static int mt7629_pcie_clkreq_pins[] = { 56, };
-static int mt7629_pcie_clkreq_funcs[] = { 1, };
+static const int mt7629_pcie_pereset_pins[] = { 51, };
+static const int mt7629_pcie_pereset_funcs[] = { 1, };
+static const int mt7629_pcie_wake_pins[] = { 55, };
+static const int mt7629_pcie_wake_funcs[] = { 1, };
+static const int mt7629_pcie_clkreq_pins[] = { 56, };
+static const int mt7629_pcie_clkreq_funcs[] = { 1, };
 
 /* PWM */
-static int mt7629_pwm_0_pins[] = { 52, };
-static int mt7629_pwm_0_funcs[] = { 1, };
-static int mt7629_pwm_1_pins[] = { 61, };
-static int mt7629_pwm_1_funcs[] = { 2, };
+static const int mt7629_pwm_0_pins[] = { 52, };
+static const int mt7629_pwm_0_funcs[] = { 1, };
+static const int mt7629_pwm_1_pins[] = { 61, };
+static const int mt7629_pwm_1_funcs[] = { 2, };
 
 /* WF 2G */
-static int mt7629_wf0_2g_pins[] = { 70, 71, 72, 73, 74, 75, 76, 77, 78, };
-static int mt7629_wf0_2g_funcs[] = { 1, 1, 1, 1, 1, 1, 1, 1, };
+static const int mt7629_wf0_2g_pins[] = { 70, 71, 72, 73, 74, 75, 76, 77, 78, };
+static const int mt7629_wf0_2g_funcs[] = { 1, 1, 1, 1, 1, 1, 1, 1, };
 
 /* SNFI */
-static int mt7629_snfi_pins[] = { 62, 63, 64, 65, 66, 67 };
-static int mt7629_snfi_funcs[] = { 2, 2, 2, 2, 2, 2 };
+static const int mt7629_snfi_pins[] = { 62, 63, 64, 65, 66, 67 };
+static const int mt7629_snfi_funcs[] = { 2, 2, 2, 2, 2, 2 };
 
 /* SPI NOR */
-static int mt7629_snor_pins[] = { 62, 63, 64, 65, 66, 67 };
-static int mt7629_snor_funcs[] = { 1, 1, 1, 1, 1, 1 };
+static const int mt7629_snor_pins[] = { 62, 63, 64, 65, 66, 67 };
+static const int mt7629_snor_funcs[] = { 1, 1, 1, 1, 1, 1 };
 
 static const struct mtk_group_desc mt7629_groups[] = {
 	PINCTRL_PIN_GROUP("wf0_5g", mt7629_wf0_5g),
@@ -385,7 +385,7 @@ static const struct mtk_function_desc mt7629_functions[] = {
 	{"jtag", mt7629_jtag_groups, ARRAY_SIZE(mt7629_jtag_groups)},
 };
 
-static struct mtk_pinctrl_soc mt7629_data = {
+static const struct mtk_pinctrl_soc mt7629_data = {
 	.name = "mt7629_pinctrl",
 	.reg_cal = mt7629_reg_cals,
 	.pins = mt7629_pins,
diff --git a/drivers/pinctrl/mediatek/pinctrl-mt7981.c b/drivers/pinctrl/mediatek/pinctrl-mt7981.c
index d887524..3fa198e 100644
--- a/drivers/pinctrl/mediatek/pinctrl-mt7981.c
+++ b/drivers/pinctrl/mediatek/pinctrl-mt7981.c
@@ -570,242 +570,246 @@ static const struct mtk_pin_desc mt7981_pins[] = {
 };
 
 /* WA_AICE */
-static int mt7981_wa_aice1_pins[] = { 0, 1, };
-static int mt7981_wa_aice1_funcs[] = { 2, 2, };
+static const int mt7981_wa_aice1_pins[] = { 0, 1, };
+static const int mt7981_wa_aice1_funcs[] = { 2, 2, };
 
-static int mt7981_wa_aice2_pins[] = { 0, 1, };
-static int mt7981_wa_aice2_funcs[] = { 3, 3, };
+static const int mt7981_wa_aice2_pins[] = { 0, 1, };
+static const int mt7981_wa_aice2_funcs[] = { 3, 3, };
 
-static int mt7981_wa_aice3_pins[] = { 28, 29, };
-static int mt7981_wa_aice3_funcs[] = { 3, 3, };
+static const int mt7981_wa_aice3_pins[] = { 28, 29, };
+static const int mt7981_wa_aice3_funcs[] = { 3, 3, };
 
-static int mt7981_wm_aice1_pins[] = { 9, 10, };
-static int mt7981_wm_aice1_funcs[] = { 2, 2, };
+static const int mt7981_wm_aice1_pins[] = { 9, 10, };
+static const int mt7981_wm_aice1_funcs[] = { 2, 2, };
 
-static int mt7981_wm_aice2_pins[] = { 30, 31, };
-static int mt7981_wm_aice2_funcs[] = { 5, 5, };
+static const int mt7981_wm_aice2_pins[] = { 30, 31, };
+static const int mt7981_wm_aice2_funcs[] = { 5, 5, };
 
 /* WM_UART */
-static int mt7981_wm_uart_0_pins[] = { 0, 1, };
-static int mt7981_wm_uart_0_funcs[] = { 5, 5, };
+static const int mt7981_wm_uart_0_pins[] = { 0, 1, };
+static const int mt7981_wm_uart_0_funcs[] = { 5, 5, };
 
-static int mt7981_wm_uart_1_pins[] = { 20, 21, };
-static int mt7981_wm_uart_1_funcs[] = { 4, 4, };
+static const int mt7981_wm_uart_1_pins[] = { 20, 21, };
+static const int mt7981_wm_uart_1_funcs[] = { 4, 4, };
 
-static int mt7981_wm_uart_2_pins[] = { 30, 31, };
-static int mt7981_wm_uart_2_funcs[] = { 3, 3, };
+static const int mt7981_wm_uart_2_pins[] = { 30, 31, };
+static const int mt7981_wm_uart_2_funcs[] = { 3, 3, };
 
 /* DFD */
-static int mt7981_dfd_pins[] = { 0, 1, 4, 5, };
-static int mt7981_dfd_funcs[] = { 5, 5, 6, 6, };
+static const int mt7981_dfd_pins[] = { 0, 1, 4, 5, };
+static const int mt7981_dfd_funcs[] = { 5, 5, 6, 6, };
 
 /* SYS_WATCHDOG */
-static int mt7981_watchdog_pins[] = { 2, };
-static int mt7981_watchdog_funcs[] = { 1, };
+static const int mt7981_watchdog_pins[] = { 2, };
+static const int mt7981_watchdog_funcs[] = { 1, };
 
-static int mt7981_watchdog1_pins[] = { 13, };
-static int mt7981_watchdog1_funcs[] = { 5, };
+static const int mt7981_watchdog1_pins[] = { 13, };
+static const int mt7981_watchdog1_funcs[] = { 5, };
 
 /* PCIE_PERESET_N */
-static int mt7981_pcie_pereset_pins[] = { 3, };
-static int mt7981_pcie_pereset_funcs[] = { 1, };
+static const int mt7981_pcie_pereset_pins[] = { 3, };
+static const int mt7981_pcie_pereset_funcs[] = { 1, };
 
 /* JTAG */
-static int mt7981_jtag_pins[] = { 4, 5, 6, 7, 8, };
-static int mt7981_jtag_funcs[] = { 1, 1, 1, 1, 1, };
+static const int mt7981_jtag_pins[] = { 4, 5, 6, 7, 8, };
+static const int mt7981_jtag_funcs[] = { 1, 1, 1, 1, 1, };
 
 /* WM_JTAG */
-static int mt7981_wm_jtag_0_pins[] = { 4, 5, 6, 7, 8, };
-static int mt7981_wm_jtag_0_funcs[] = { 2, 2, 2, 2, 2, };
+static const int mt7981_wm_jtag_0_pins[] = { 4, 5, 6, 7, 8, };
+static const int mt7981_wm_jtag_0_funcs[] = { 2, 2, 2, 2, 2, };
 
-static int mt7981_wm_jtag_1_pins[] = { 20, 21, 22, 23, 24, };
-static int mt7981_wm_jtag_1_funcs[] = { 5, 5, 5, 5, 5, };
+static const int mt7981_wm_jtag_1_pins[] = { 20, 21, 22, 23, 24, };
+static const int mt7981_wm_jtag_1_funcs[] = { 5, 5, 5, 5, 5, };
 
 /* WO0_JTAG */
-static int mt7981_wo0_jtag_0_pins[] = { 9, 10, 11, 12, 13, };
-static int mt7981_wo0_jtag_0_funcs[] = { 1, 1, 1, 1, 1, };
+static const int mt7981_wo0_jtag_0_pins[] = { 9, 10, 11, 12, 13, };
+static const int mt7981_wo0_jtag_0_funcs[] = { 1, 1, 1, 1, 1, };
 
-static int mt7981_wo0_jtag_1_pins[] = { 25, 26, 27, 28, 29, };
-static int mt7981_wo0_jtag_1_funcs[] = { 5, 5, 5, 5, 5, };
+static const int mt7981_wo0_jtag_1_pins[] = { 25, 26, 27, 28, 29, };
+static const int mt7981_wo0_jtag_1_funcs[] = { 5, 5, 5, 5, 5, };
 
 /* UART2 */
-static int mt7981_uart2_0_pins[] = { 4, 5, 6, 7, };
-static int mt7981_uart2_0_funcs[] = { 3, 3, 3, 3, };
+static const int mt7981_uart2_0_pins[] = { 4, 5, 6, 7, };
+static const int mt7981_uart2_0_funcs[] = { 3, 3, 3, 3, };
 
 /* GBE_LED0 */
-static int mt7981_gbe_led0_pins[] = { 8, };
-static int mt7981_gbe_led0_funcs[] = { 3, };
+static const int mt7981_gbe_led0_pins[] = { 8, };
+static const int mt7981_gbe_led0_funcs[] = { 3, };
 
 /* PTA_EXT */
-static int mt7981_pta_ext_0_pins[] = { 4, 5, 6, };
-static int mt7981_pta_ext_0_funcs[] = { 4, 4, 4, };
+static const int mt7981_pta_ext_0_pins[] = { 4, 5, 6, };
+static const int mt7981_pta_ext_0_funcs[] = { 4, 4, 4, };
 
-static int mt7981_pta_ext_1_pins[] = { 22, 23, 24, };
-static int mt7981_pta_ext_1_funcs[] = { 4, 4, 4, };
+static const int mt7981_pta_ext_1_pins[] = { 22, 23, 24, };
+static const int mt7981_pta_ext_1_funcs[] = { 4, 4, 4, };
 
 /* PWM2 */
-static int mt7981_pwm2_pins[] = { 7, };
-static int mt7981_pwm2_funcs[] = { 4, };
+static const int mt7981_pwm2_pins[] = { 7, };
+static const int mt7981_pwm2_funcs[] = { 4, };
 
 /* NET_WO0_UART_TXD */
-static int mt7981_net_wo0_uart_txd_0_pins[] = { 8, };
-static int mt7981_net_wo0_uart_txd_0_funcs[] = { 4, };
+static const int mt7981_net_wo0_uart_txd_0_pins[] = { 8, };
+static const int mt7981_net_wo0_uart_txd_0_funcs[] = { 4, };
 
-static int mt7981_net_wo0_uart_txd_1_pins[] = { 14, };
-static int mt7981_net_wo0_uart_txd_1_funcs[] = { 3, };
+static const int mt7981_net_wo0_uart_txd_1_pins[] = { 14, };
+static const int mt7981_net_wo0_uart_txd_1_funcs[] = { 3, };
 
-static int mt7981_net_wo0_uart_txd_2_pins[] = { 15, };
-static int mt7981_net_wo0_uart_txd_2_funcs[] = { 4, };
+static const int mt7981_net_wo0_uart_txd_2_pins[] = { 15, };
+static const int mt7981_net_wo0_uart_txd_2_funcs[] = { 4, };
 
 /* SPI1 */
-static int mt7981_spi1_0_pins[] = { 4, 5, 6, 7, };
-static int mt7981_spi1_0_funcs[] = { 5, 5, 5, 5, };
+static const int mt7981_spi1_0_pins[] = { 4, 5, 6, 7, };
+static const int mt7981_spi1_0_funcs[] = { 5, 5, 5, 5, };
 
 /* I2C */
-static int mt7981_i2c0_0_pins[] = { 6, 7, };
-static int mt7981_i2c0_0_funcs[] = { 6, 6, };
+static const int mt7981_i2c0_0_pins[] = { 6, 7, };
+static const int mt7981_i2c0_0_funcs[] = { 6, 6, };
 
-static int mt7981_i2c0_1_pins[] = { 30, 31, };
-static int mt7981_i2c0_1_funcs[] = { 4, 4, };
+static const int mt7981_i2c0_1_pins[] = { 30, 31, };
+static const int mt7981_i2c0_1_funcs[] = { 4, 4, };
 
-static int mt7981_i2c0_2_pins[] = { 36, 37, };
-static int mt7981_i2c0_2_funcs[] = { 2, 2, };
+static const int mt7981_i2c0_2_pins[] = { 36, 37, };
+static const int mt7981_i2c0_2_funcs[] = { 2, 2, };
 
-static int mt7981_u2_phy_i2c_pins[] = { 30, 31, };
-static int mt7981_u2_phy_i2c_funcs[] = { 6, 6, };
+static const int mt7981_u2_phy_i2c_pins[] = { 30, 31, };
+static const int mt7981_u2_phy_i2c_funcs[] = { 6, 6, };
 
-static int mt7981_u3_phy_i2c_pins[] = { 32, 33, };
-static int mt7981_u3_phy_i2c_funcs[] = { 3, 3, };
+static const int mt7981_u3_phy_i2c_pins[] = { 32, 33, };
+static const int mt7981_u3_phy_i2c_funcs[] = { 3, 3, };
 
-static int mt7981_sgmii1_phy_i2c_pins[] = { 32, 33, };
-static int mt7981_sgmii1_phy_i2c_funcs[] = { 2, 2, };
+static const int mt7981_sgmii1_phy_i2c_pins[] = { 32, 33, };
+static const int mt7981_sgmii1_phy_i2c_funcs[] = { 2, 2, };
 
-static int mt7981_sgmii0_phy_i2c_pins[] = { 32, 33, };
-static int mt7981_sgmii0_phy_i2c_funcs[] = { 5, 5, };
+static const int mt7981_sgmii0_phy_i2c_pins[] = { 32, 33, };
+static const int mt7981_sgmii0_phy_i2c_funcs[] = { 5, 5, };
 
 /* DFD_NTRST */
-static int mt7981_dfd_ntrst_pins[] = { 8, };
-static int mt7981_dfd_ntrst_funcs[] = { 6, };
+static const int mt7981_dfd_ntrst_pins[] = { 8, };
+static const int mt7981_dfd_ntrst_funcs[] = { 6, };
 
 /* PWM0 */
-static int mt7981_pwm0_0_pins[] = { 13, };
-static int mt7981_pwm0_0_funcs[] = { 2, };
+static const int mt7981_pwm0_0_pins[] = { 13, };
+static const int mt7981_pwm0_0_funcs[] = { 2, };
 
-static int mt7981_pwm0_1_pins[] = { 15, };
-static int mt7981_pwm0_1_funcs[] = { 1, };
+static const int mt7981_pwm0_1_pins[] = { 15, };
+static const int mt7981_pwm0_1_funcs[] = { 1, };
 
 /* PWM1 */
-static int mt7981_pwm1_0_pins[] = { 14, };
-static int mt7981_pwm1_0_funcs[] = { 2, };
+static const int mt7981_pwm1_0_pins[] = { 14, };
+static const int mt7981_pwm1_0_funcs[] = { 2, };
 
-static int mt7981_pwm1_1_pins[] = { 15, };
-static int mt7981_pwm1_1_funcs[] = { 3, };
+static const int mt7981_pwm1_1_pins[] = { 15, };
+static const int mt7981_pwm1_1_funcs[] = { 3, };
 
 /* GBE_LED1 */
-static int mt7981_gbe_led1_pins[] = { 13, };
-static int mt7981_gbe_led1_funcs[] = { 3, };
+static const int mt7981_gbe_led1_pins[] = { 13, };
+static const int mt7981_gbe_led1_funcs[] = { 3, };
 
 /* PCM */
-static int mt7981_pcm_pins[] = { 9, 10, 11, 12, 13, 25 };
-static int mt7981_pcm_funcs[] = { 4, 4, 4, 4, 4, 4, };
+static const int mt7981_pcm_pins[] = { 9, 10, 11, 12, 13, 25 };
+static const int mt7981_pcm_funcs[] = { 4, 4, 4, 4, 4, 4, };
 
 /* UDI */
-static int mt7981_udi_pins[] = { 9, 10, 11, 12, 13, };
-static int mt7981_udi_funcs[] = { 6, 6, 6, 6, 6, };
+static const int mt7981_udi_pins[] = { 9, 10, 11, 12, 13, };
+static const int mt7981_udi_funcs[] = { 6, 6, 6, 6, 6, };
 
 /* DRV_VBUS */
-static int mt7981_drv_vbus_pins[] = { 14, };
-static int mt7981_drv_vbus_funcs[] = { 1, };
+static const int mt7981_drv_vbus_pins[] = { 14, };
+static const int mt7981_drv_vbus_funcs[] = { 1, };
 
 /* EMMC */
-static int mt7981_emmc_45_pins[] = { 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, };
-static int mt7981_emmc_45_funcs[] = { 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, };
+static const int mt7981_emmc_45_pins[] = {
+	15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, };
+static const int mt7981_emmc_45_funcs[] = {
+	2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, };
 
 /* SNFI */
-static int mt7981_snfi_pins[] = { 16, 17, 18, 19, 20, 21, };
-static int mt7981_snfi_funcs[] = { 3, 3, 3, 3, 3, 3, };
+static const int mt7981_snfi_pins[] = { 16, 17, 18, 19, 20, 21, };
+static const int mt7981_snfi_funcs[] = { 3, 3, 3, 3, 3, 3, };
 
 /* SPI0 */
-static int mt7981_spi0_pins[] = { 16, 17, 18, 19, };
-static int mt7981_spi0_funcs[] = { 1, 1, 1, 1, };
+static const int mt7981_spi0_pins[] = { 16, 17, 18, 19, };
+static const int mt7981_spi0_funcs[] = { 1, 1, 1, 1, };
 
 /* SPI0 */
-static int mt7981_spi0_wp_hold_pins[] = { 20, 21, };
-static int mt7981_spi0_wp_hold_funcs[] = { 1, 1, };
+static const int mt7981_spi0_wp_hold_pins[] = { 20, 21, };
+static const int mt7981_spi0_wp_hold_funcs[] = { 1, 1, };
 
 /* SPI1 */
-static int mt7981_spi1_1_pins[] = { 22, 23, 24, 25, };
-static int mt7981_spi1_1_funcs[] = { 1, 1, 1, 1, };
+static const int mt7981_spi1_1_pins[] = { 22, 23, 24, 25, };
+static const int mt7981_spi1_1_funcs[] = { 1, 1, 1, 1, };
 
 /* SPI2 */
-static int mt7981_spi2_pins[] = { 26, 27, 28, 29, };
-static int mt7981_spi2_funcs[] = { 1, 1, 1, 1, };
+static const int mt7981_spi2_pins[] = { 26, 27, 28, 29, };
+static const int mt7981_spi2_funcs[] = { 1, 1, 1, 1, };
 
 /* SPI2 */
-static int mt7981_spi2_wp_hold_pins[] = { 30, 31, };
-static int mt7981_spi2_wp_hold_funcs[] = { 1, 1, };
+static const int mt7981_spi2_wp_hold_pins[] = { 30, 31, };
+static const int mt7981_spi2_wp_hold_funcs[] = { 1, 1, };
 
 /* UART1 */
-static int mt7981_uart1_0_pins[] = { 16, 17, 18, 19, };
-static int mt7981_uart1_0_funcs[] = { 4, 4, 4, 4, };
+static const int mt7981_uart1_0_pins[] = { 16, 17, 18, 19, };
+static const int mt7981_uart1_0_funcs[] = { 4, 4, 4, 4, };
 
-static int mt7981_uart1_1_pins[] = { 26, 27, 28, 29, };
-static int mt7981_uart1_1_funcs[] = { 2, 2, 2, 2, };
+static const int mt7981_uart1_1_pins[] = { 26, 27, 28, 29, };
+static const int mt7981_uart1_1_funcs[] = { 2, 2, 2, 2, };
 
 /* UART2 */
-static int mt7981_uart2_1_pins[] = { 22, 23, 24, 25, };
-static int mt7981_uart2_1_funcs[] = { 3, 3, 3, 3, };
+static const int mt7981_uart2_1_pins[] = { 22, 23, 24, 25, };
+static const int mt7981_uart2_1_funcs[] = { 3, 3, 3, 3, };
 
 /* UART0 */
-static int mt7981_uart0_pins[] = { 32, 33, };
-static int mt7981_uart0_funcs[] = { 1, 1, };
+static const int mt7981_uart0_pins[] = { 32, 33, };
+static const int mt7981_uart0_funcs[] = { 1, 1, };
 
 /* PCIE_CLK_REQ */
-static int mt7981_pcie_clk_pins[] = { 34, };
-static int mt7981_pcie_clk_funcs[] = { 2, };
+static const int mt7981_pcie_clk_pins[] = { 34, };
+static const int mt7981_pcie_clk_funcs[] = { 2, };
 
 /* PCIE_WAKE_N */
-static int mt7981_pcie_wake_pins[] = { 35, };
-static int mt7981_pcie_wake_funcs[] = { 2, };
+static const int mt7981_pcie_wake_pins[] = { 35, };
+static const int mt7981_pcie_wake_funcs[] = { 2, };
 
 /* MDC_MDIO */
-static int mt7981_smi_mdc_mdio_pins[] = { 36, 37, };
-static int mt7981_smi_mdc_mdio_funcs[] = { 1, 1, };
+static const int mt7981_smi_mdc_mdio_pins[] = { 36, 37, };
+static const int mt7981_smi_mdc_mdio_funcs[] = { 1, 1, };
 
-static int mt7981_gbe_ext_mdc_mdio_pins[] = { 36, 37, };
-static int mt7981_gbe_ext_mdc_mdio_funcs[] = { 3, 3, };
+static const int mt7981_gbe_ext_mdc_mdio_pins[] = { 36, 37, };
+static const int mt7981_gbe_ext_mdc_mdio_funcs[] = { 3, 3, };
 
 /* WF0_MODE1 */
-static int mt7981_wf0_mode1_pins[] = { 40, 41, 42, 43, 44, 45, 46, 47, 48, 49,
-				       50, 51, 52, 53, 54, 55, 56 };
-static int mt7981_wf0_mode1_funcs[] = { 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
-					1, 1, 1, 1 };
+static const int mt7981_wf0_mode1_pins[] = {
+	40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56 };
+static const int mt7981_wf0_mode1_funcs[] = {
+	1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1 };
 
 /* WF0_MODE3 */
-static int mt7981_wf0_mode3_pins[] = { 45, 46, 47, 48, 49, 51 };
-static int mt7981_wf0_mode3_funcs[] = { 2, 2, 2, 2, 2, 2 };
+static const int mt7981_wf0_mode3_pins[] = { 45, 46, 47, 48, 49, 51 };
+static const int mt7981_wf0_mode3_funcs[] = { 2, 2, 2, 2, 2, 2 };
 
 /* WF2G_LED */
-static int mt7981_wf2g_led0_pins[] = { 30, };
-static int mt7981_wf2g_led0_funcs[] = { 2, };
+static const int mt7981_wf2g_led0_pins[] = { 30, };
+static const int mt7981_wf2g_led0_funcs[] = { 2, };
 
-static int mt7981_wf2g_led1_pins[] = { 34, };
-static int mt7981_wf2g_led1_funcs[] = { 1, };
+static const int mt7981_wf2g_led1_pins[] = { 34, };
+static const int mt7981_wf2g_led1_funcs[] = { 1, };
 
 /* WF5G_LED */
-static int mt7981_wf5g_led0_pins[] = { 31, };
-static int mt7981_wf5g_led0_funcs[] = { 2, };
+static const int mt7981_wf5g_led0_pins[] = { 31, };
+static const int mt7981_wf5g_led0_funcs[] = { 2, };
 
-static int mt7981_wf5g_led1_pins[] = { 35, };
-static int mt7981_wf5g_led1_funcs[] = { 1, };
+static const int mt7981_wf5g_led1_pins[] = { 35, };
+static const int mt7981_wf5g_led1_funcs[] = { 1, };
 
 /* MT7531_INT */
-static int mt7981_mt7531_int_pins[] = { 38, };
-static int mt7981_mt7531_int_funcs[] = { 1, };
+static const int mt7981_mt7531_int_pins[] = { 38, };
+static const int mt7981_mt7531_int_funcs[] = { 1, };
 
 /* ANT_SEL */
-static int mt7981_ant_sel_pins[] = { 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 34, 35 };
-static int mt7981_ant_sel_funcs[] = { 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6 };
+static const int mt7981_ant_sel_pins[] = {
+	14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 34, 35 };
+static const int mt7981_ant_sel_funcs[] = {
+	6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6 };
 
 static const struct mtk_group_desc mt7981_groups[] = {
 	/* @GPIO(0,1): WA_AICE(2) */
@@ -1012,7 +1016,7 @@ static const char *const mt7981_pinctrl_register_base_names[] = {
 	"iocfg_lb_base", "iocfg_bl_base", "iocfg_tm_base", "iocfg_tl_base",
 };
 
-static struct mtk_pinctrl_soc mt7981_data = {
+static const struct mtk_pinctrl_soc mt7981_data = {
 	.name = "mt7981_pinctrl",
 	.reg_cal = mt7981_reg_cals,
 	.pins = mt7981_pins,
diff --git a/drivers/pinctrl/mediatek/pinctrl-mt7986.c b/drivers/pinctrl/mediatek/pinctrl-mt7986.c
index 449e5ad..819d644 100644
--- a/drivers/pinctrl/mediatek/pinctrl-mt7986.c
+++ b/drivers/pinctrl/mediatek/pinctrl-mt7986.c
@@ -554,114 +554,117 @@ static const struct mtk_io_type_desc mt7986_io_type_desc[] = {
  * The hardware probably has multiple combinations of these pinouts.
  */
 
-static int mt7986_watchdog_pins[] = { 0, };
-static int mt7986_watchdog_funcs[] = { 1, };
+static const int mt7986_watchdog_pins[] = { 0, };
+static const int mt7986_watchdog_funcs[] = { 1, };
 
-static int mt7986_wifi_led_pins[] = { 1, 2, };
-static int mt7986_wifi_led_funcs[] = { 1, 1, };
+static const int mt7986_wifi_led_pins[] = { 1, 2, };
+static const int mt7986_wifi_led_funcs[] = { 1, 1, };
 
-static int mt7986_i2c_pins[] = { 3, 4, };
-static int mt7986_i2c_funcs[] = { 1, 1, };
+static const int mt7986_i2c_pins[] = { 3, 4, };
+static const int mt7986_i2c_funcs[] = { 1, 1, };
 
-static int mt7986_uart1_0_pins[] = { 7, 8, 9, 10, };
-static int mt7986_uart1_0_funcs[] = { 3, 3, 3, 3, };
+static const int mt7986_uart1_0_pins[] = { 7, 8, 9, 10, };
+static const int mt7986_uart1_0_funcs[] = { 3, 3, 3, 3, };
 
-static int mt7986_spi1_0_pins[] = { 11, 12, 13, 14, };
-static int mt7986_spi1_0_funcs[] = { 3, 3, 3, 3, };
+static const int mt7986_spi1_0_pins[] = { 11, 12, 13, 14, };
+static const int mt7986_spi1_0_funcs[] = { 3, 3, 3, 3, };
 
-static int mt7986_pwm1_1_pins[] = { 20, };
-static int mt7986_pwm1_1_funcs[] = { 2, };
+static const int mt7986_pwm1_1_pins[] = { 20, };
+static const int mt7986_pwm1_1_funcs[] = { 2, };
 
-static int mt7986_pwm0_pins[] = { 21, };
-static int mt7986_pwm0_funcs[] = { 1, };
+static const int mt7986_pwm0_pins[] = { 21, };
+static const int mt7986_pwm0_funcs[] = { 1, };
 
-static int mt7986_pwm1_0_pins[] = { 22, };
-static int mt7986_pwm1_0_funcs[] = { 1, };
+static const int mt7986_pwm1_0_pins[] = { 22, };
+static const int mt7986_pwm1_0_funcs[] = { 1, };
 
-static int mt7986_emmc_45_pins[] = {
+static const int mt7986_emmc_45_pins[] = {
 	22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, };
-static int mt7986_emmc_45_funcs[] = { 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, };
+static const int mt7986_emmc_45_funcs[] = { 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, };
 
-static int mt7986_snfi_pins[] = { 23, 24, 25, 26, 27, 28, };
-static int mt7986_snfi_funcs[] = { 1, 1, 1, 1, 1, 1, };
+static const int mt7986_snfi_pins[] = { 23, 24, 25, 26, 27, 28, };
+static const int mt7986_snfi_funcs[] = { 1, 1, 1, 1, 1, 1, };
 
-static int mt7986_spi1_1_pins[] = { 23, 24, 25, 26, };
-static int mt7986_spi1_1_funcs[] = { 3, 3, 3, 3, };
+static const int mt7986_spi1_1_pins[] = { 23, 24, 25, 26, };
+static const int mt7986_spi1_1_funcs[] = { 3, 3, 3, 3, };
 
-static int mt7986_uart1_1_pins[] = { 23, 24, 25, 26, };
-static int mt7986_uart1_1_funcs[] = { 4, 4, 4, 4, };
+static const int mt7986_uart1_1_pins[] = { 23, 24, 25, 26, };
+static const int mt7986_uart1_1_funcs[] = { 4, 4, 4, 4, };
 
-static int mt7986_spi1_2_pins[] = { 29, 30, 31, 32, };
-static int mt7986_spi1_2_funcs[] = { 1, 1, 1, 1, };
+static const int mt7986_spi1_2_pins[] = { 29, 30, 31, 32, };
+static const int mt7986_spi1_2_funcs[] = { 1, 1, 1, 1, };
 
-static int mt7986_uart1_2_pins[] = { 29, 30, 31, 32, };
-static int mt7986_uart1_2_funcs[] = { 3, 3, 3, 3, };
+static const int mt7986_uart1_2_pins[] = { 29, 30, 31, 32, };
+static const int mt7986_uart1_2_funcs[] = { 3, 3, 3, 3, };
 
-static int mt7986_uart2_0_pins[] = { 29, 30, 31, 32, };
-static int mt7986_uart2_0_funcs[] = { 4, 4, 4, 4, };
+static const int mt7986_uart2_0_pins[] = { 29, 30, 31, 32, };
+static const int mt7986_uart2_0_funcs[] = { 4, 4, 4, 4, };
 
-static int mt7986_spi0_pins[] = { 33, 34, 35, 36, };
-static int mt7986_spi0_funcs[] = { 1, 1, 1, 1, };
+static const int mt7986_spi0_pins[] = { 33, 34, 35, 36, };
+static const int mt7986_spi0_funcs[] = { 1, 1, 1, 1, };
 
-static int mt7986_spi0_wp_hold_pins[] = { 37, 38, };
-static int mt7986_spi0_wp_hold_funcs[] = { 1, 1, };
+static const int mt7986_spi0_wp_hold_pins[] = { 37, 38, };
+static const int mt7986_spi0_wp_hold_funcs[] = { 1, 1, };
 
-static int mt7986_uart2_1_pins[] = { 33, 34, 35, 36, };
-static int mt7986_uart2_1_funcs[] = { 3, 3, 3, 3, };
+static const int mt7986_uart2_1_pins[] = { 33, 34, 35, 36, };
+static const int mt7986_uart2_1_funcs[] = { 3, 3, 3, 3, };
 
-static int mt7986_uart1_3_rx_tx_pins[] = { 35, 36, };
-static int mt7986_uart1_3_rx_tx_funcs[] = { 2, 2, };
+static const int mt7986_uart1_3_rx_tx_pins[] = { 35, 36, };
+static const int mt7986_uart1_3_rx_tx_funcs[] = { 2, 2, };
 
-static int mt7986_uart1_3_cts_rts_pins[] = { 37, 38, };
-static int mt7986_uart1_3_cts_rts_funcs[] = { 2, 2, };
+static const int mt7986_uart1_3_cts_rts_pins[] = { 37, 38, };
+static const int mt7986_uart1_3_cts_rts_funcs[] = { 2, 2, };
 
-static int mt7986_spi1_3_pins[] = { 33, 34, 35, 36, };
-static int mt7986_spi1_3_funcs[] = { 4, 4, 4, 4, };
+static const int mt7986_spi1_3_pins[] = { 33, 34, 35, 36, };
+static const int mt7986_spi1_3_funcs[] = { 4, 4, 4, 4, };
 
-static int mt7986_uart0_pins[] = { 39, 40, };
-static int mt7986_uart0_funcs[] = { 1, 1, };
+static const int mt7986_uart0_pins[] = { 39, 40, };
+static const int mt7986_uart0_funcs[] = { 1, 1, };
 
-static int mt7986_pcie_reset_pins[] = { 41, };
-static int mt7986_pcie_reset_funcs[] = { 1, };
+static const int mt7986_pcie_reset_pins[] = { 41, };
+static const int mt7986_pcie_reset_funcs[] = { 1, };
 
-static int mt7986_uart1_pins[] = { 42, 43, 44, 45, };
-static int mt7986_uart1_funcs[] = { 1, 1, 1, 1, };
+static const int mt7986_uart1_pins[] = { 42, 43, 44, 45, };
+static const int mt7986_uart1_funcs[] = { 1, 1, 1, 1, };
 
-static int mt7986_uart2_pins[] = { 46, 47, 48, 49, };
-static int mt7986_uart2_funcs[] = { 1, 1, 1, 1, };
+static const int mt7986_uart2_pins[] = { 46, 47, 48, 49, };
+static const int mt7986_uart2_funcs[] = { 1, 1, 1, 1, };
 
-static int mt7986_emmc_51_pins[] = {
+static const int mt7986_emmc_51_pins[] = {
 	50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, };
-static int mt7986_emmc_51_funcs[] = { 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, };
+static const int mt7986_emmc_51_funcs[] = {
+	1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, };
 
-static int mt7986_pcm_pins[] = { 62, 63, 64, 65, };
-static int mt7986_pcm_funcs[] = { 1, 1, 1, 1, };
+static const int mt7986_pcm_pins[] = { 62, 63, 64, 65, };
+static const int mt7986_pcm_funcs[] = { 1, 1, 1, 1, };
 
-static int mt7986_i2s_pins[] = { 62, 63, 64, 65, };
-static int mt7986_i2s_funcs[] = { 1, 1, 1, 1, };
+static const int mt7986_i2s_pins[] = { 62, 63, 64, 65, };
+static const int mt7986_i2s_funcs[] = { 1, 1, 1, 1, };
 
-static int mt7986_switch_int_pins[] = { 66, };
-static int mt7986_switch_int_funcs[] = { 1, };
+static const int mt7986_switch_int_pins[] = { 66, };
+static const int mt7986_switch_int_funcs[] = { 1, };
 
-static int mt7986_mdc_mdio_pins[] = { 67, 68, };
-static int mt7986_mdc_mdio_funcs[] = { 1, 1, };
+static const int mt7986_mdc_mdio_pins[] = { 67, 68, };
+static const int mt7986_mdc_mdio_funcs[] = { 1, 1, };
 
-static int mt7986_wf_2g_pins[] = {74, 75, 76, 77, 78, 79, 80, 81, 82, 83, };
-static int mt7986_wf_2g_funcs[] = {1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, };
+static const int mt7986_wf_2g_pins[] = {
+	74, 75, 76, 77, 78, 79, 80, 81, 82, 83, };
+static const int mt7986_wf_2g_funcs[] = { 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, };
 
-static int mt7986_wf_5g_pins[] = {91, 92, 93, 94, 95, 96, 97, 98, 99, 100, };
-static int mt7986_wf_5g_funcs[] = {1, 1, 1, 1, 1, 1, 1, 1, 1, 1, };
+static const int mt7986_wf_5g_pins[] = {
+	91, 92, 93, 94, 95, 96, 97, 98, 99, 100, };
+static const int mt7986_wf_5g_funcs[] = { 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, };
 
-static int mt7986_wf_dbdc_pins[] = {
+static const int mt7986_wf_dbdc_pins[] = {
 	74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, };
-static int mt7986_wf_dbdc_funcs[] = {
+static const int mt7986_wf_dbdc_funcs[] = {
 	2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, };
 
-static int mt7986_pcie_clk_pins[] = { 9, };
-static int mt7986_pcie_clk_funcs[] = { 1, };
+static const int mt7986_pcie_clk_pins[] = { 9, };
+static const int mt7986_pcie_clk_funcs[] = { 1, };
 
-static int mt7986_pcie_wake_pins[] = { 10, };
-static int mt7986_pcie_wake_funcs[] = { 1, };
+static const int mt7986_pcie_wake_pins[] = { 10, };
+static const int mt7986_pcie_wake_funcs[] = { 1, };
 
 static const struct mtk_group_desc mt7986_groups[] = {
 	PINCTRL_PIN_GROUP("watchdog", mt7986_watchdog),
@@ -738,7 +741,7 @@ static const struct mtk_function_desc mt7986_functions[] = {
 	{"wifi", mt7986_wf_groups, ARRAY_SIZE(mt7986_wf_groups)},
 };
 
-static struct mtk_pinctrl_soc mt7986_data = {
+static const struct mtk_pinctrl_soc mt7986_data = {
 	.name = "mt7986_pinctrl",
 	.reg_cal = mt7986_reg_cals,
 	.pins = mt7986_pins,
diff --git a/drivers/pinctrl/mediatek/pinctrl-mt8512.c b/drivers/pinctrl/mediatek/pinctrl-mt8512.c
index 3d9c0ab..bc5fb83 100644
--- a/drivers/pinctrl/mediatek/pinctrl-mt8512.c
+++ b/drivers/pinctrl/mediatek/pinctrl-mt8512.c
@@ -315,12 +315,12 @@ static const struct mtk_pin_desc mt8512_pins[] = {
  */
 
 /* UART */
-static int mt8512_uart0_0_rxd_txd_pins[]		= { 52, 53, };
-static int mt8512_uart0_0_rxd_txd_funcs[]		= {  1,  1, };
-static int mt8512_uart1_0_rxd_txd_pins[]		= { 54, 55, };
-static int mt8512_uart1_0_rxd_txd_funcs[]		= {  1,  1, };
-static int mt8512_uart2_0_rxd_txd_pins[]		= { 28, 29, };
-static int mt8512_uart2_0_rxd_txd_funcs[]		= {  1,  1, };
+static const int mt8512_uart0_0_rxd_txd_pins[]		= { 52, 53, };
+static const int mt8512_uart0_0_rxd_txd_funcs[]		= {  1,  1, };
+static const int mt8512_uart1_0_rxd_txd_pins[]		= { 54, 55, };
+static const int mt8512_uart1_0_rxd_txd_funcs[]		= {  1,  1, };
+static const int mt8512_uart2_0_rxd_txd_pins[]		= { 28, 29, };
+static const int mt8512_uart2_0_rxd_txd_funcs[]		= {  1,  1, };
 
 /* Joint those groups owning the same capability in user point of view which
  * allows that people tend to use through the device tree.
@@ -330,13 +330,13 @@ static const char *const mt8512_uart_groups[] = { "uart0_0_rxd_txd",
 						"uart2_0_rxd_txd", };
 
 /* SNAND */
-static int mt8512_snfi_pins[] = { 71, 76, 77, 78, 79, 80, };
-static int mt8512_snfi_funcs[] = { 3, 3, 3, 3, 3, 3, };
+static const int mt8512_snfi_pins[] = { 71, 76, 77, 78, 79, 80, };
+static const int mt8512_snfi_funcs[] = { 3, 3, 3, 3, 3, 3, };
 
 /* MMC0 */
-static int mt8512_msdc0_pins[] = { 76, 77, 78, 79, 80, 81, 82, 83, 84,
-				   85, 86, };
-static int mt8512_msdc0_funcs[] = { 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, };
+static const int mt8512_msdc0_pins[] = { 76, 77, 78, 79, 80, 81, 82, 83, 84,
+					 85, 86, };
+static const int mt8512_msdc0_funcs[] = { 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, };
 
 static const struct mtk_group_desc mt8512_groups[] = {
 	PINCTRL_PIN_GROUP("uart0_0_rxd_txd", mt8512_uart0_0_rxd_txd),
@@ -356,7 +356,7 @@ static const struct mtk_function_desc mt8512_functions[] = {
 	{"snand", mt8512_msdc_groups, ARRAY_SIZE(mt8512_msdc_groups)},
 };
 
-static struct mtk_pinctrl_soc mt8512_data = {
+static const struct mtk_pinctrl_soc mt8512_data = {
 	.name = "mt8512_pinctrl",
 	.reg_cal = mt8512_reg_cals,
 	.pins = mt8512_pins,
diff --git a/drivers/pinctrl/mediatek/pinctrl-mt8516.c b/drivers/pinctrl/mediatek/pinctrl-mt8516.c
index 6f94f76..7487d6f 100644
--- a/drivers/pinctrl/mediatek/pinctrl-mt8516.c
+++ b/drivers/pinctrl/mediatek/pinctrl-mt8516.c
@@ -326,12 +326,12 @@ static const struct mtk_pin_desc mt8516_pins[] = {
  */
 
 /* UART */
-static int mt8516_uart0_0_rxd_txd_pins[]		= { 62, 63, };
-static int mt8516_uart0_0_rxd_txd_funcs[]		= {  1,  1, };
-static int mt8516_uart1_0_rxd_txd_pins[]		= { 64, 65, };
-static int mt8516_uart1_0_rxd_txd_funcs[]		= {  1,  1, };
-static int mt8516_uart2_0_rxd_txd_pins[]		= { 34, 35, };
-static int mt8516_uart2_0_rxd_txd_funcs[]		= {  1,  1, };
+static const int mt8516_uart0_0_rxd_txd_pins[]		= { 62, 63, };
+static const int mt8516_uart0_0_rxd_txd_funcs[]		= {  1,  1, };
+static const int mt8516_uart1_0_rxd_txd_pins[]		= { 64, 65, };
+static const int mt8516_uart1_0_rxd_txd_funcs[]		= {  1,  1, };
+static const int mt8516_uart2_0_rxd_txd_pins[]		= { 34, 35, };
+static const int mt8516_uart2_0_rxd_txd_funcs[]		= {  1,  1, };
 
 /* Joint those groups owning the same capability in user point of view which
  * allows that people tend to use through the device tree.
@@ -341,9 +341,9 @@ static const char *const mt8516_uart_groups[] = { "uart0_0_rxd_txd",
 						"uart2_0_rxd_txd", };
 
 /* MMC0 */
-static int mt8516_msdc0_pins[] = { 110, 111, 112, 113, 114, 115, 116, 117, 118,
-				   119, 120, };
-static int mt8516_msdc0_funcs[] = { 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, };
+static const int mt8516_msdc0_pins[] = { 110, 111, 112, 113, 114, 115, 116, 117,
+					 118, 119, 120, };
+static const int mt8516_msdc0_funcs[] = { 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, };
 
 static const struct mtk_group_desc mt8516_groups[] = {
 	PINCTRL_PIN_GROUP("uart0_0_rxd_txd", mt8516_uart0_0_rxd_txd),
diff --git a/drivers/pinctrl/mediatek/pinctrl-mt8518.c b/drivers/pinctrl/mediatek/pinctrl-mt8518.c
index ed51bd3..66fcfdf 100644
--- a/drivers/pinctrl/mediatek/pinctrl-mt8518.c
+++ b/drivers/pinctrl/mediatek/pinctrl-mt8518.c
@@ -346,12 +346,12 @@ static const struct mtk_pin_desc mt8518_pins[] = {
  */
 
 /* UART */
-static int mt8518_uart0_0_rxd_txd_pins[]		= { 104, 105, };
-static int mt8518_uart0_0_rxd_txd_funcs[]		= {  1,  1, };
-static int mt8518_uart1_0_rxd_txd_pins[]		= { 52, 53, };
-static int mt8518_uart1_0_rxd_txd_funcs[]		= {  1,  1, };
-static int mt8518_uart2_0_rxd_txd_pins[]		= { 106, 107, };
-static int mt8518_uart2_0_rxd_txd_funcs[]		= {  1,  1, };
+static const int mt8518_uart0_0_rxd_txd_pins[]		= { 104, 105, };
+static const int mt8518_uart0_0_rxd_txd_funcs[]		= {  1,  1, };
+static const int mt8518_uart1_0_rxd_txd_pins[]		= { 52, 53, };
+static const int mt8518_uart1_0_rxd_txd_funcs[]		= {  1,  1, };
+static const int mt8518_uart2_0_rxd_txd_pins[]		= { 106, 107, };
+static const int mt8518_uart2_0_rxd_txd_funcs[]		= {  1,  1, };
 
 /* Joint those groups owning the same capability in user point of view which
  * allows that people tend to use through the device tree.
@@ -361,9 +361,9 @@ static const char *const mt8518_uart_groups[] = { "uart0_0_rxd_txd",
 						"uart2_0_rxd_txd", };
 
 /* MMC0 */
-static int mt8518_msdc0_pins[] = { 3, 4, 5, 6, 7, 8, 9, 10, 11,
-				   12, 13, };
-static int mt8518_msdc0_funcs[] = { 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, };
+static const int mt8518_msdc0_pins[] = { 3, 4, 5, 6, 7, 8, 9, 10, 11,
+					 12, 13, };
+static const int mt8518_msdc0_funcs[] = { 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, };
 
 static const struct mtk_group_desc mt8518_groups[] = {
 	PINCTRL_PIN_GROUP("uart0_0_rxd_txd", mt8518_uart0_0_rxd_txd),
@@ -380,7 +380,7 @@ static const struct mtk_function_desc mt8518_functions[] = {
 	{"msdc", mt8518_msdc_groups, ARRAY_SIZE(mt8518_msdc_groups)},
 };
 
-static struct mtk_pinctrl_soc mt8518_data = {
+static const struct mtk_pinctrl_soc mt8518_data = {
 	.name = "mt8518_pinctrl",
 	.reg_cal = mt8518_reg_cals,
 	.pins = mt8518_pins,
diff --git a/drivers/pinctrl/mediatek/pinctrl-mtk-common.c b/drivers/pinctrl/mediatek/pinctrl-mtk-common.c
index 5a4d58b..1caca34 100644
--- a/drivers/pinctrl/mediatek/pinctrl-mtk-common.c
+++ b/drivers/pinctrl/mediatek/pinctrl-mtk-common.c
@@ -314,7 +314,7 @@ static int mtk_pinmux_group_set(struct udevice *dev,
 	int i;
 
 	for (i = 0; i < grp->num_pins; i++) {
-		int *pin_modes = grp->data;
+		const int *pin_modes = grp->data;
 
 		mtk_hw_set_value(dev, grp->pins[i], PINCTRL_PIN_REG_MODE,
 				 pin_modes[i]);
@@ -769,7 +769,7 @@ static int mtk_gpiochip_register(struct udevice *parent)
 #endif
 
 int mtk_pinctrl_common_probe(struct udevice *dev,
-			     struct mtk_pinctrl_soc *soc)
+			     const struct mtk_pinctrl_soc *soc)
 {
 	struct mtk_pinctrl_priv *priv = dev_get_priv(dev);
 	int ret = 0;
diff --git a/drivers/pinctrl/mediatek/pinctrl-mtk-common.h b/drivers/pinctrl/mediatek/pinctrl-mtk-common.h
index 0d9596f..c948b80 100644
--- a/drivers/pinctrl/mediatek/pinctrl-mtk-common.h
+++ b/drivers/pinctrl/mediatek/pinctrl-mtk-common.h
@@ -174,9 +174,9 @@ struct mtk_pin_desc {
  */
 struct mtk_group_desc {
 	const char *name;
-	int *pins;
+	const int *pins;
 	int num_pins;
-	void *data;
+	const void *data;
 };
 
 /**
@@ -233,7 +233,7 @@ struct mtk_pinctrl_soc {
  */
 struct mtk_pinctrl_priv {
 	void __iomem *base[MAX_BASE_CALC];
-	struct mtk_pinctrl_soc *soc;
+	const struct mtk_pinctrl_soc *soc;
 };
 
 extern const struct pinctrl_ops mtk_pinctrl_ops;
@@ -242,7 +242,7 @@ extern const struct pinctrl_ops mtk_pinctrl_ops;
 void mtk_rmw(struct udevice *dev, u32 reg, u32 mask, u32 set);
 void mtk_i_rmw(struct udevice *dev, u8 i, u32 reg, u32 mask, u32 set);
 int mtk_pinctrl_common_probe(struct udevice *dev,
-			     struct mtk_pinctrl_soc *soc);
+			     const struct mtk_pinctrl_soc *soc);
 
 #if CONFIG_IS_ENABLED(PINCONF)