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power: Explicitly select pmic device's bus 

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>
Acked-by: Heiko Schocher <hs@denx.de>
Reviewed-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Minkyu Kang <mk7.kang@samsung.com>
This commit is contained in:
Aaron Durbin 2014-05-20 06:01:38 -06:00 committed by Minkyu Kang
parent 2469bf35a8
commit 0b259dc2e8
1 changed files with 4 additions and 0 deletions
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4
drivers/power/power_i2c.c
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@ -23,6 +23,8 @@ 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) {
@ -66,6 +68,8 @@ 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;