dm: i2c: tegra: Convert to driver model

This converts all Tegra boards over to use driver model for I2C. The driver
is adjusted to use driver model and the following obsolete CONFIGs are
removed:

   - CONFIG_SYS_I2C_INIT_BOARD
   - CONFIG_I2C_MULTI_BUS
   - CONFIG_SYS_MAX_I2C_BUS
   - CONFIG_SYS_I2C_SPEED
   - CONFIG_SYS_I2C

This has been tested on:
- trimslice (no I2C)
- beaver
- Jetson-TK1

It has not been tested on Tegra 114 as I don't have that board.

Acked-by: Heiko Schocher <hs@denx.de>
Signed-off-by: Simon Glass <sjg@chromium.org>

1 files changed, 10 insertions, 3 deletions

diff --git a/board/nvidia/cardhu/cardhu.c b/board/nvidia/cardhu/cardhu.c
index cc0e5e130f..026f45c6c6 100644
--- a/board/nvidia/cardhu/cardhu.c
+++ b/board/nvidia/cardhu/cardhu.c
@@ -6,6 +6,7 @@
  */
 
 #include <common.h>
+#include <dm.h>
 #include <asm/arch/pinmux.h>
 #include <asm/arch/gp_padctrl.h>
 #include "pinmux-config-cardhu.h"
@@ -37,17 +38,23 @@ void pinmux_init(void)
  */
 void board_sdmmc_voltage_init(void)
 {
+	struct udevice *dev;
 	uchar reg, data_buffer[1];
+	int ret;
 	int i;
 
-	i2c_set_bus_num(0);	/* PMU is on bus 0 */
+	ret = i2c_get_chip_for_busnum(0, PMU_I2C_ADDRESS, &dev);
+	if (ret) {
+		debug("%s: Cannot find PMIC I2C chip\n", __func__);
+		return;
+	}
 
 	/* TPS659110: LDO5_REG = 3.3v, ACTIVE to SDMMC1 */
 	data_buffer[0] = 0x65;
 	reg = 0x32;
 
 	for (i = 0; i < MAX_I2C_RETRY; ++i) {
-		if (i2c_write(PMU_I2C_ADDRESS, reg, 1, data_buffer, 1))
+		if (i2c_write(dev, reg, data_buffer, 1))
 			udelay(100);
 	}
 
@@ -56,7 +63,7 @@ void board_sdmmc_voltage_init(void)
 	reg = 0x67;
 
 	for (i = 0; i < MAX_I2C_RETRY; ++i) {
-		if (i2c_write(PMU_I2C_ADDRESS, reg, 1, data_buffer, 1))
+		if (i2c_write(dev, reg, data_buffer, 1))
 			udelay(100);
 	}
 }