From: Aaron Durbin adurbin@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@chromium.org Signed-off-by: Simon Glass sjg@chromium.org Reviewed-by: Simon Glass sjg@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;