[U-Boot] [PATCH v3 0/2] power: Add a driver to handle the PBIAS cell of the TI SOCs

[Jaehoon Chung]

On 09/22/2017 12:03 AM, Jean-Jacques Hiblot wrote:
> In the TI SOCs a PBIAS cell exists to provide a bias voltage to the MMC1
> IO cells. Without this bias voltage these I/O cells can not function
> properly. This bias voltage is either 1.8v or 3.0v.
> 
> The first patch adds 2 functions to the DM core: to count strings in a
> stringlist and get a string from a stringlist based on its position in the
> list.
> The second patch implements the support for this PBIAS cell as a regulator
> driver.

Applied to u-boot-mmc for pmic.

Best Regards,
Jaehoon Chung

> 
> Jean-Jacques
> 
> 
> changes since v2:
>  * rebased on u-boot/master
>  * automatically select REGMAP and SYSCON if PBIAS is selected.
> 
> changes since v1:
>  - add new functions to get strings from a stringlist in DM core
>  - use the dev_read_*() API to access the DT
>  - automatically select the PBIAS driver if DM_REGULATOR, DM_MMC and
>    MMC_OMAP_HS are set.
>  - removed the patch touching the DRA7 and AM57 config files.
>  
> 
> Jean-Jacques Hiblot (2):
>   dm: core: Add functions to get strings and the string count from a
>     stringlist
>   regulator: pbias: Add PBIAS regulator for proper voltage switching on
>     MMC1
> 
>  drivers/core/read.c                       |  11 ++
>  drivers/mmc/Kconfig                       |   1 +
>  drivers/power/regulator/Kconfig           |  13 ++
>  drivers/power/regulator/Makefile          |   1 +
>  drivers/power/regulator/pbias_regulator.c | 301 ++++++++++++++++++++++++++++++
>  include/dm/read.h                         |  36 ++++
>  6 files changed, 363 insertions(+)
>  create mode 100644 drivers/power/regulator/pbias_regulator.c
>