On Fri, Oct 31, 2014 at 10:01 PM, Peng Fan B51431@freescale.com wrote:
On 10/31/2014 08:01 PM, Fabio Estevam wrote:
On Fri, Oct 31, 2014 at 1:08 AM, Peng Fan Peng.Fan@freescale.com wrote:
The PFUZ probe failed with the following msg: " wait_for_sr_state: failed sr=81 cr=a0 state=2020 i2c_init_transfer: failed for chip 0x8 retry=0 wait_for_sr_state: failed sr=81 cr=a0 state=2020 i2c_init_transfer: failed for chip 0x8 retry=1 wait_for_sr_state: failed sr=81 cr=a0 state=2020 i2c_init_transfer: failed for chip 0x8 retry=2 i2c_init_transfer: give up i2c_regs=021a0000 Can't find PMIC:PFUZE100 "
board_early_init_f is too early to call i2c related setting, because init_func_i2c is called after board_early_init_f being invoked. Thus move setup_i2c into board_init.
Also PFUZ is connected to I2C bus 0, so change "1" -> "0".
Using this patch PFUZ can be correctly probed: "PMIC: PFUZE100 ID=0x11"
Signed-off-by: Peng Fan Peng.Fan@freescale.com
Maybe this is a difference between RevA versus RevB board?
I checked SCH-27962 REV A and SCH-27962 REV B. There is no different to I2C part. PMIC is connected to the first I2C bus. You can check page 22.
You are right. I was surprised that PMIC was working originally. I tested your change and it also works fine here.
Thanks!