pinctrl: uniphier: support pin configuration for dedicated pins

PH1-LD4 and PH1-sLD8 SoCs have pins that support pin configuration
(pin biasing, drive strength control), but not pin-muxing.

Allow to fill the mux value table with -1 for those pins; pins with
mux value -1 will be skipped in the pin-mux set function.  The mux
value type should be changed from "unsigned" to "int" in order to
accommodate -1 as a special case.

[ Linux commit: 363c90e743b50a432a91a211dd8b078d9df446e9 ]

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>

1 files changed, 19 insertions, 20 deletions

diff --git a/drivers/pinctrl/uniphier/pinctrl-uniphier-pro4.c b/drivers/pinctrl/uniphier/pinctrl-uniphier-pro4.c
index f5194b6..7e465b6 100644
--- a/drivers/pinctrl/uniphier/pinctrl-uniphier-pro4.c
+++ b/drivers/pinctrl/uniphier/pinctrl-uniphier-pro4.c
@@ -13,46 +13,45 @@ static const struct uniphier_pinctrl_pin uniphier_pro4_pins[] = {
 };
 
 static const unsigned emmc_pins[] = {40, 41, 42, 43, 51, 52, 53};
-static const unsigned emmc_muxvals[] = {1, 1, 1, 1, 1, 1, 1};
+static const int emmc_muxvals[] = {1, 1, 1, 1, 1, 1, 1};
 static const unsigned emmc_dat8_pins[] = {44, 45, 46, 47};
-static const unsigned emmc_dat8_muxvals[] = {1, 1, 1, 1};
+static const int emmc_dat8_muxvals[] = {1, 1, 1, 1};
 static const unsigned i2c0_pins[] = {142, 143};
-static const unsigned i2c0_muxvals[] = {0, 0};
+static const int i2c0_muxvals[] = {0, 0};
 static const unsigned i2c1_pins[] = {144, 145};
-static const unsigned i2c1_muxvals[] = {0, 0};
+static const int i2c1_muxvals[] = {0, 0};
 static const unsigned i2c2_pins[] = {146, 147};
-static const unsigned i2c2_muxvals[] = {0, 0};
+static const int i2c2_muxvals[] = {0, 0};
 static const unsigned i2c3_pins[] = {148, 149};
-static const unsigned i2c3_muxvals[] = {0, 0};
+static const int i2c3_muxvals[] = {0, 0};
 static const unsigned i2c6_pins[] = {308, 309};
-static const unsigned i2c6_muxvals[] = {6, 6};
+static const int i2c6_muxvals[] = {6, 6};
 static const unsigned nand_pins[] = {40, 41, 42, 43, 44, 45, 46, 47, 48, 49,
 				     50, 51, 52, 53, 54};
-static const unsigned nand_muxvals[] = {0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
-					0, 0};
+static const int nand_muxvals[] = {0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0};
 static const unsigned nand_cs1_pins[] = {131, 132};
-static const unsigned nand_cs1_muxvals[] = {1, 1};
+static const int nand_cs1_muxvals[] = {1, 1};
 static const unsigned sd_pins[] = {150, 151, 152, 153, 154, 155, 156, 157, 158};
-static const unsigned sd_muxvals[] = {0, 0, 0, 0, 0, 0, 0, 0, 0};
+static const int sd_muxvals[] = {0, 0, 0, 0, 0, 0, 0, 0, 0};
 static const unsigned sd1_pins[] = {319, 320, 321, 322, 323, 324, 325, 326,
 				    327};
-static const unsigned sd1_muxvals[] = {0, 0, 0, 0, 0, 0, 0, 0, 0};
+static const int sd1_muxvals[] = {0, 0, 0, 0, 0, 0, 0, 0, 0};
 static const unsigned uart0_pins[] = {127, 128};
-static const unsigned uart0_muxvals[] = {0, 0};
+static const int uart0_muxvals[] = {0, 0};
 static const unsigned uart1_pins[] = {129, 130};
-static const unsigned uart1_muxvals[] = {0, 0};
+static const int uart1_muxvals[] = {0, 0};
 static const unsigned uart2_pins[] = {131, 132};
-static const unsigned uart2_muxvals[] = {0, 0};
+static const int uart2_muxvals[] = {0, 0};
 static const unsigned uart3_pins[] = {88, 89};
-static const unsigned uart3_muxvals[] = {2, 2};
+static const int uart3_muxvals[] = {2, 2};
 static const unsigned usb0_pins[] = {180, 181};
-static const unsigned usb0_muxvals[] = {0, 0};
+static const int usb0_muxvals[] = {0, 0};
 static const unsigned usb1_pins[] = {182, 183};
-static const unsigned usb1_muxvals[] = {0, 0};
+static const int usb1_muxvals[] = {0, 0};
 static const unsigned usb2_pins[] = {184, 185};
-static const unsigned usb2_muxvals[] = {0, 0};
+static const int usb2_muxvals[] = {0, 0};
 static const unsigned usb3_pins[] = {186, 187};
-static const unsigned usb3_muxvals[] = {0, 0};
+static const int usb3_muxvals[] = {0, 0};
 
 static const struct uniphier_pinctrl_group uniphier_pro4_groups[] = {
 	UNIPHIER_PINCTRL_GROUP(emmc),