[U-Boot] [PATCH v2] fuelgauge: max17042: fix i2c read issue which causes infinity loop.

[Przemyslaw Marczak]

Hello,

On 12/30/2013 11:24 AM, Przemyslaw Marczak wrote:
> Issues:
> - reading i2c data by passing u16 pointer causes errors in read data.
> - max17042 status register fields have not only Power On Reset meaning
>    so using proper mask is required.
>
> Changes:
> - read i2c data to type u32 instead of u16 - avoids buffer overflow
> - compare FG status register using mask not just one bit value
> - add checking return value to functions fg read/write
> - add model lock and model check count
> - add debug msg
>
> Signed-off-by: Przemyslaw Marczak <p.marczak at samsung.com>
> Cc: Lukasz Majewski <l.majewski at samsung.com>
> Cc: Minkyu Kang <mk7.kang at samsung.com>
>
> ---
> Changes v2:
> - add checking return value to functions fg read/write
> - add model lock and model check count
> - add status msg
> - change logical AND to bitwise AND when checking status register
>

To test this patch, it is required to apply trats i2c fix by Piotr Wilczek:
"[PATCH] board:trats1:trats2: fix adapter number"
which can be found at u-boot list.
In other way FG will be not initialized.

Regards,
-- 
Przemyslaw Marczak
Samsung R&D Institute Poland
Samsung Electronics
p.marczak at samsung.com