boards: lx2160a: Add support of I2C driver model

DM_I2C_COMPAT is a compatibility layer that allows using the non-DM I2C
API when DM_I2C is used. When DM_I2C_COMPAT is not enabled for
compilation, a compilation error will be generated. This patch solves
the problem that the i2c-related api of the lx2160a platform does not
support dm.

Signed-off-by: Chuanhua Han <chuanhua.han@nxp.com>
Reviewed-by: Prabhakar Kushwaha <prabhakar.kushwaha@nxp.com>

1 files changed, 84 insertions, 0 deletions

diff --git a/board/freescale/common/vid.c b/board/freescale/common/vid.c
index b804971..b37f3bf 100644
--- a/board/freescale/common/vid.c
+++ b/board/freescale/common/vid.c
@@ -61,13 +61,23 @@ static int find_ir_chip_on_i2c(void)
 	u8 byte;
 	int i;
 	const int ir_i2c_addr[] = {0x38, 0x08, 0x09};
+#ifdef CONFIG_DM_I2C
+	struct udevice *dev;
+#endif
 
 	/* Check all the address */
 	for (i = 0; i < (sizeof(ir_i2c_addr)/sizeof(ir_i2c_addr[0])); i++) {
 		i2caddress = ir_i2c_addr[i];
+#ifndef CONFIG_DM_I2C
 		ret = i2c_read(i2caddress,
 			       IR36021_MFR_ID_OFFSET, 1, (void *)&byte,
 			       sizeof(byte));
+#else
+		ret = i2c_get_chip_for_busnum(0, i2caddress, 1, &dev);
+		if (!ret)
+			ret = dm_i2c_read(dev, IR36021_MFR_ID_OFFSET,
+					  (void *)&byte, sizeof(byte));
+#endif
 		if ((ret >= 0) && (byte == IR36021_MFR_ID))
 			return i2caddress;
 	}
@@ -103,11 +113,21 @@ static int read_voltage_from_INA220(int i2caddress)
 	int i, ret, voltage_read = 0;
 	u16 vol_mon;
 	u8 buf[2];
+#ifdef CONFIG_DM_I2C
+	struct udevice *dev;
+#endif
 
 	for (i = 0; i < NUM_READINGS; i++) {
+#ifndef CONFIG_DM_I2C
 		ret = i2c_read(I2C_VOL_MONITOR_ADDR,
 			       I2C_VOL_MONITOR_BUS_V_OFFSET, 1,
 			       (void *)&buf, 2);
+#else
+		ret = i2c_get_chip_for_busnum(0, I2C_VOL_MONITOR_ADDR, 1, &dev);
+		if (!ret)
+			ret = dm_i2c_read(dev, I2C_VOL_MONITOR_BUS_V_OFFSET,
+					  (void *)&buf, 2);
+#endif
 		if (ret) {
 			printf("VID: failed to read core voltage\n");
 			return ret;
@@ -136,11 +156,21 @@ static int read_voltage_from_IR(int i2caddress)
 	int i, ret, voltage_read = 0;
 	u16 vol_mon;
 	u8 buf;
+#ifdef CONFIG_DM_I2C
+	struct udevice *dev;
+#endif
 
 	for (i = 0; i < NUM_READINGS; i++) {
+#ifndef CONFIG_DM_I2C
 		ret = i2c_read(i2caddress,
 			       IR36021_LOOP1_VOUT_OFFSET,
 			       1, (void *)&buf, 1);
+#else
+		ret = i2c_get_chip_for_busnum(0, i2caddress, 1, &dev);
+		if (!ret)
+			ret = dm_i2c_read(dev, IR36021_LOOP1_VOUT_OFFSET,
+					  (void *)&buf, 1);
+#endif
 		if (ret) {
 			printf("VID: failed to read vcpu\n");
 			return ret;
@@ -179,17 +209,33 @@ static int read_voltage_from_LTC(int i2caddress)
 	int  ret, vcode = 0;
 	u8 chan = PWM_CHANNEL0;
 
+#ifndef CONFIG_DM_I2C
 	/* select the PAGE 0 using PMBus commands PAGE for VDD*/
 	ret = i2c_write(I2C_VOL_MONITOR_ADDR,
 			PMBUS_CMD_PAGE, 1, &chan, 1);
+#else
+	struct udevice *dev;
+
+	ret = i2c_get_chip_for_busnum(0, I2C_VOL_MONITOR_ADDR, 1, &dev);
+	if (!ret)
+		ret = dm_i2c_write(dev, PMBUS_CMD_PAGE, &chan, 1);
+#endif
 	if (ret) {
 		printf("VID: failed to select VDD Page 0\n");
 		return ret;
 	}
 
+#ifndef CONFIG_DM_I2C
 	/*read the output voltage using PMBus command READ_VOUT*/
 	ret = i2c_read(I2C_VOL_MONITOR_ADDR,
 		       PMBUS_CMD_READ_VOUT, 1, (void *)&vcode, 2);
+#else
+	ret = dm_i2c_read(dev, PMBUS_CMD_READ_VOUT, (void *)&vcode, 2);
+	if (ret) {
+		printf("VID: failed to read the volatge\n");
+		return ret;
+	}
+#endif
 	if (ret) {
 		printf("VID: failed to read the volatge\n");
 		return ret;
@@ -294,8 +340,18 @@ static int set_voltage_to_IR(int i2caddress, int vdd)
 	vid = DIV_ROUND_UP(vdd - 245, 5);
 #endif
 
+#ifndef CONFIG_DM_I2C
 	ret = i2c_write(i2caddress, IR36021_LOOP1_MANUAL_ID_OFFSET,
 			1, (void *)&vid, sizeof(vid));
+#else
+	struct udevice *dev;
+
+	ret = i2c_get_chip_for_busnum(0, i2caddress, 1, &dev);
+	if (!ret)
+		ret = dm_i2c_write(dev, IR36021_LOOP1_MANUAL_ID_OFFSET,
+				   (void *)&vid, sizeof(vid));
+
+#endif
 	if (ret) {
 		printf("VID: failed to write VID\n");
 		return -1;
@@ -331,8 +387,17 @@ static int set_voltage_to_LTC(int i2caddress, int vdd)
 			vdd & 0xFF, (vdd & 0xFF00) >> 8};
 
 	/* Write the desired voltage code to the regulator */
+#ifndef CONFIG_DM_I2C
 	ret = i2c_write(I2C_VOL_MONITOR_ADDR,
 			PMBUS_CMD_PAGE_PLUS_WRITE, 1, (void *)&buff, 5);
+#else
+	struct udevice *dev;
+
+	ret = i2c_get_chip_for_busnum(0, I2C_VOL_MONITOR_ADDR, 1, &dev);
+	if (!ret)
+		ret = dm_i2c_write(dev, PMBUS_CMD_PAGE_PLUS_WRITE,
+				   (void *)&buff, 5);
+#endif
 	if (ret) {
 		printf("VID: I2C failed to write to the volatge regulator\n");
 		return -1;
@@ -516,14 +581,24 @@ int adjust_vdd(ulong vdd_override)
 	}
 
 	/* check IR chip work on Intel mode*/
+#ifndef CONFIG_DM_I2C
 	ret = i2c_read(i2caddress,
 		       IR36021_INTEL_MODE_OOFSET,
 		       1, (void *)&buf, 1);
+#else
+	struct udevice *dev;
+
+	ret = i2c_get_chip_for_busnum(0, i2caddress, 1, &dev);
+	if (!ret)
+		ret = dm_i2c_read(dev, IR36021_INTEL_MODE_OOFSET,
+				  (void *)&buf, 1);
+#endif
 	if (ret) {
 		printf("VID: failed to read IR chip mode.\n");
 		ret = -1;
 		goto exit;
 	}
+
 	if ((buf & IR36021_MODE_MASK) != IR36021_INTEL_MODE) {
 		printf("VID: IR Chip is not used in Intel mode.\n");
 		ret = -1;
@@ -688,9 +763,18 @@ int adjust_vdd(ulong vdd_override)
 	}
 
 	/* check IR chip work on Intel mode*/
+#ifndef CONFIG_DM_I2C
 	ret = i2c_read(i2caddress,
 		       IR36021_INTEL_MODE_OOFSET,
 		       1, (void *)&buf, 1);
+#else
+	struct udevice *dev;
+
+	ret = i2c_get_chip_for_busnum(0, i2caddress, 1, &dev);
+	if (!ret)
+		ret = dm_i2c_read(dev, IR36021_INTEL_MODE_OOFSET,
+				  (void *)&buf, 1);
+#endif
 	if (ret) {
 		printf("VID: failed to read IR chip mode.\n");
 		ret = -1;