apalis_imx6: migrate i2c to using driver model

Migrate I2C to using driver model.

Signed-off-by: Marcel Ziswiler <marcel.ziswiler@toradex.com>

1 files changed, 29 insertions, 30 deletions

diff --git a/board/toradex/apalis_imx6/pf0100.c b/board/toradex/apalis_imx6/pf0100.c
index 7334e92f2ef..3a944b3699e 100644
--- a/board/toradex/apalis_imx6/pf0100.c
+++ b/board/toradex/apalis_imx6/pf0100.c
@@ -1,6 +1,6 @@
 // SPDX-License-Identifier: GPL-2.0+
 /*
- * Copyright (C) 2014-2016, Toradex AG
+ * Copyright (C) 2014-2019, Toradex AG
  */
 
 /*
@@ -9,7 +9,6 @@
 
 #include <common.h>
 #include <i2c.h>
-#include <linux/compiler.h>
 #include <asm/arch/imx-regs.h>
 #include <asm/arch/iomux.h>
 #include <asm/arch/mx6-pins.h>
@@ -30,22 +29,25 @@ static __maybe_unused iomux_v3_cfg_t const pmic_prog_pads[] = {
 
 unsigned pmic_init(void)
 {
+	int rc;
+	struct udevice *dev = NULL;
 	unsigned programmed = 0;
 	uchar bus = 1;
 	uchar devid, revid, val;
 
 	puts("PMIC: ");
-	if (!((0 == i2c_set_bus_num(bus)) &&
-	      (0 == i2c_probe(PFUZE100_I2C_ADDR)))) {
-		puts("i2c bus failed\n");
+	rc = i2c_get_chip_for_busnum(bus, PFUZE100_I2C_ADDR, 1, &dev);
+	if (rc) {
+		printf("failed to get device for PMIC at address 0x%x\n",
+		       PFUZE100_I2C_ADDR);
 		return 0;
 	}
 	/* get device ident */
-	if (i2c_read(PFUZE100_I2C_ADDR, PFUZE100_DEVICEID, 1, &devid, 1) < 0) {
+	if (dm_i2c_read(dev, PFUZE100_DEVICEID, &devid, 1) < 0) {
 		puts("i2c pmic devid read failed\n");
 		return 0;
 	}
-	if (i2c_read(PFUZE100_I2C_ADDR, PFUZE100_REVID, 1, &revid, 1) < 0) {
+	if (dm_i2c_read(dev, PFUZE100_REVID, &revid, 1) < 0) {
 		puts("i2c pmic revid read failed\n");
 		return 0;
 	}
@@ -60,7 +62,7 @@ unsigned pmic_init(void)
 		for (j = 0; j < 0x80; ) {
 			printf("\n%2x", j);
 			for (i = 0; i < 16; i++) {
-				i2c_read(PFUZE100_I2C_ADDR, j+i, 1, &val, 1);
+				dm_i2c_read(dev, j + i, &val, 1);
 				printf("\t%2x", val);
 			}
 			j += 0x10;
@@ -68,8 +70,7 @@ unsigned pmic_init(void)
 		printf("\nEXT Page 1");
 
 		val = PFUZE100_PAGE_REGISTER_PAGE1;
-		if (i2c_write(PFUZE100_I2C_ADDR, PFUZE100_PAGE_REGISTER, 1,
-			      &val, 1)) {
+		if (dm_i2c_write(dev, PFUZE100_PAGE_REGISTER, &val, 1)) {
 			puts("i2c write failed\n");
 			return 0;
 		}
@@ -77,7 +78,7 @@ unsigned pmic_init(void)
 		for (j = 0x80; j < 0x100; ) {
 			printf("\n%2x", j);
 			for (i = 0; i < 16; i++) {
-				i2c_read(PFUZE100_I2C_ADDR, j+i, 1, &val, 1);
+				dm_i2c_read(dev, j + i, &val, 1);
 				printf("\t%2x", val);
 			}
 			j += 0x10;
@@ -85,8 +86,7 @@ unsigned pmic_init(void)
 		printf("\nEXT Page 2");
 
 		val = PFUZE100_PAGE_REGISTER_PAGE2;
-		if (i2c_write(PFUZE100_I2C_ADDR, PFUZE100_PAGE_REGISTER, 1,
-			      &val, 1)) {
+		if (dm_i2c_write(dev, PFUZE100_PAGE_REGISTER, &val, 1)) {
 			puts("i2c write failed\n");
 			return 0;
 		}
@@ -94,35 +94,35 @@ unsigned pmic_init(void)
 		for (j = 0x80; j < 0x100; ) {
 			printf("\n%2x", j);
 			for (i = 0; i < 16; i++) {
-				i2c_read(PFUZE100_I2C_ADDR, j+i, 1, &val, 1);
+				dm_i2c_read(dev, j + i, &val, 1);
 				printf("\t%2x", val);
 			}
 			j += 0x10;
 		}
 		printf("\n");
 	}
-#endif
+#endif /* DEBUG */
 	/* get device programmed state */
 	val = PFUZE100_PAGE_REGISTER_PAGE1;
-	if (i2c_write(PFUZE100_I2C_ADDR, PFUZE100_PAGE_REGISTER, 1, &val, 1)) {
+	if (dm_i2c_write(dev, PFUZE100_PAGE_REGISTER, &val, 1)) {
 		puts("i2c write failed\n");
 		return 0;
 	}
-	if (i2c_read(PFUZE100_I2C_ADDR, PFUZE100_FUSE_POR1, 1, &val, 1) < 0) {
+	if (dm_i2c_read(dev, PFUZE100_FUSE_POR1, &val, 1) < 0) {
 		puts("i2c fuse_por read failed\n");
 		return 0;
 	}
 	if (val & PFUZE100_FUSE_POR_M)
 		programmed++;
 
-	if (i2c_read(PFUZE100_I2C_ADDR, PFUZE100_FUSE_POR2, 1, &val, 1) < 0) {
+	if (dm_i2c_read(dev, PFUZE100_FUSE_POR2, &val, 1) < 0) {
 		puts("i2c fuse_por read failed\n");
 		return programmed;
 	}
 	if (val & PFUZE100_FUSE_POR_M)
 		programmed++;
 
-	if (i2c_read(PFUZE100_I2C_ADDR, PFUZE100_FUSE_POR3, 1, &val, 1) < 0) {
+	if (dm_i2c_read(dev, PFUZE100_FUSE_POR3, &val, 1) < 0) {
 		puts("i2c fuse_por read failed\n");
 		return programmed;
 	}
@@ -145,18 +145,15 @@ unsigned pmic_init(void)
 	if (programmed != 3) {
 		/* set VGEN1 to 1.2V */
 		val = PFUZE100_VGEN1_VAL;
-		if (i2c_write(PFUZE100_I2C_ADDR, PFUZE100_VGEN1CTL, 1,
-			      &val, 1)) {
+		if (dm_i2c_write(dev, PFUZE100_VGEN1CTL, &val, 1)) {
 			puts("i2c write failed\n");
 			return programmed;
 		}
 
 		/* set SWBST to 5.0V */
 		val = PFUZE100_SWBST_VAL;
-		if (i2c_write(PFUZE100_I2C_ADDR, PFUZE100_SWBSTCTL, 1,
-			      &val, 1)) {
+		if (dm_i2c_write(dev, PFUZE100_SWBSTCTL, &val, 1))
 			puts("i2c write failed\n");
-		}
 	}
 	return programmed;
 }
@@ -164,6 +161,8 @@ unsigned pmic_init(void)
 #ifndef CONFIG_SPL_BUILD
 static int pf0100_prog(void)
 {
+	int rc;
+	struct udevice *dev = NULL;
 	unsigned char bus = 1;
 	unsigned char val;
 	unsigned int i;
@@ -177,9 +176,10 @@ static int pf0100_prog(void)
 					 ARRAY_SIZE(pmic_prog_pads));
 	gpio_direction_output(PMIC_PROG_VOLTAGE, 0);
 
-	if (!((0 == i2c_set_bus_num(bus)) &&
-	      (0 == i2c_probe(PFUZE100_I2C_ADDR)))) {
-		puts("i2c bus failed\n");
+	rc = i2c_get_chip_for_busnum(bus, PFUZE100_I2C_ADDR, 1, &dev);
+	if (rc) {
+		printf("failed to get device for PMIC at address 0x%x\n",
+		       PFUZE100_I2C_ADDR);
 		return CMD_RET_FAILURE;
 	}
 
@@ -187,8 +187,7 @@ static int pf0100_prog(void)
 		switch (pmic_otp_prog[i].cmd) {
 		case pmic_i2c:
 			val = (unsigned char) (pmic_otp_prog[i].value & 0xff);
-			if (i2c_write(PFUZE100_I2C_ADDR, pmic_otp_prog[i].reg,
-				      1, &val, 1)) {
+			if (dm_i2c_write(dev, pmic_otp_prog[i].reg, &val, 1)) {
 				printf("i2c write failed, reg 0x%2x, value 0x%2x\n",
 				       pmic_otp_prog[i].reg, val);
 				return CMD_RET_FAILURE;
@@ -227,4 +226,4 @@ U_BOOT_CMD(
 	"Program the OTP fuses on the PMIC PF0100",
 	""
 );
-#endif
+#endif /* CONFIG_SPL_BUILD */