[PATCH v2 0/8] power: pmic: mtk-pwrap: add more capability flags

[David Lechner]

On 4/9/26 3:30 PM, David Lechner wrote:
> After using the mtk-pwrap driver a bit, we noticed that there were a few
> places where it was writing to registers that were not defined on all
> platforms. The undefined registers are treated as 0, which is the DONE2
> register on the affected platforms. This could cause the DONE2 register
> to have an incorrect value, which could cause Linux to re-initialize the
> PMIC unnecessarily.
> 
> To avoid this issue and ensure that we only write to registers that are
> defined on a given platform, we can add some more capability flags to
> conditionally call any register writes that aren't common to all
> platforms.
> 
> There are also a couple of other cleanups that we do along the way. And
> in v2, I've picked up Julien's patch to add support for MT8195 and
> rebased on top of this.
> 
> Signed-off-by: David Lechner <dlechner at baylibre.com>
> ---
> Changes in v2:
> - Use EOPNOTSUPP.
> - Reorder patches to reduce churn.
> - Added new patch to fix driver description comment.
> - Added new patch to drop chip type enum.
> - Picked up Julien's patches from [1] and rebased on these changes.
> - Link to [1]: https://lore.kernel.org/u-boot/20260317-mt8195-add-ufs-support-v1-0-7d731ec438ae@baylibre.com/
> - Link to v1: https://patch.msgid.link/20260327-mtk-pmic-fixes-v1-0-ef874ca82409@baylibre.com
> 
> ---
> David Lechner (6):
>       power: pmic: mtk-pwrap: fix file description
>       power: pmic: mtk-pwrap: add PWRAP_CAP_WDT_SRC flag
>       power: pmic: mtk-pwrap: add init capability flag
>       power: pmic: mtk-pwrap: drop PWRAP_SLV_CAP_DUALIO on mt6359
>       power: pmic: mtk-pwrap: remove interrupt related code
>       power: pmic: mtk-pwrap: use pmic compatible to select child info
> 
> Julien Stephan (2):
>       power: pmic: mtk-pwrap: use tabs for alignment
>       power: pmic: mtk-pwrap: add MT8195 support
> 
>  drivers/power/pmic/mtk-pwrap.c | 115 +++++++++++++++++++++--------------------
>  1 file changed, 60 insertions(+), 55 deletions(-)
> ---
> base-commit: 2a1bcefce835b827bbf88a9e112d646c5c4af9c1
> change-id: 20260317-mtk-pmic-fixes-c1523b1b0dad
> 
> Best regards,
> --  
> David Lechner <dlechner at baylibre.com>
> 

Hi Jaehoon,

Is it OK if I take this through the MediaTek tree? We need to
pick this up for v2026.07 to make sure the boards we added recently
are working correctly.