[U-Boot] [PATCH 3/4] power: Explicitly select pmic device's bus

[Simon Glass]

From: Aaron Durbin <adurbin at chromium.org>

The current pmic i2c code assumes the current i2c bus is
the same as the pmic device's bus. There is nothing ensuring
that to be true. Therefore, select the proper bus before performing
a transaction.

Signed-off-by: Aaron Durbin <adurbin at chromium.org>
Signed-off-by: Simon Glass <sjg at chromium.org>
Reviewed-by: Simon Glass <sjg at chromium.org>
---
 drivers/power/power_i2c.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/drivers/power/power_i2c.c b/drivers/power/power_i2c.c
index 3e5a784..ec9701e 100644
--- a/drivers/power/power_i2c.c
+++ b/drivers/power/power_i2c.c
@@ -39,6 +39,8 @@ int pmic_reg_write(struct pmic *p, u32 reg, u32 val)
 	if (check_reg(p, reg))
 		return -1;
 
+	I2C_SET_BUS(p->bus);
+
 	switch (pmic_i2c_tx_num) {
 	case 3:
 		if (p->sensor_byte_order == PMIC_SENSOR_BYTE_ORDER_BIG) {
@@ -82,6 +84,8 @@ int pmic_reg_read(struct pmic *p, u32 reg, u32 *val)
 	if (check_reg(p, reg))
 		return -1;
 
+	I2C_SET_BUS(p->bus);
+
 	if (i2c_read(pmic_i2c_addr, reg, 1, buf, pmic_i2c_tx_num))
 		return -1;
 
-- 
1.8.1.3