[Linux-stm32] [PATCH 0/2] pinctrl: stm32: add suspend/resume management

[Alexandre Torgue]

On 5/24/19 1:24 PM, Linus Walleij wrote:
> On Fri, May 10, 2019 at 9:42 AM Alexandre Torgue
> <alexandre.torgue at st.com> wrote:
> 
>> During power sequence, GPIO hardware registers could be lost if the power
>> supply is switched off. Each device using pinctrl API is in charge of
>> managing pins during suspend/resume sequences. But for pins used as gpio or
>> irq stm32 pinctrl driver has to save the hardware configuration.
>> Each register will be saved at runtime and restored during resume sequence.
> 
> Both patches applied.
> 
> On the same pinctrl devel branch is also Benjamin's patches to support
> the "link_consumers" property on the pin controller descriptor to
> enable links from pin control consumers back to their pin controller
> suppliers, especially important for STMFX.
> 
> Would you please check if it work fine if you turn on this feature
> for the SoC STM32 pin controller?
> 

Sure. Either today or next Monday.

I let you know.

regards
Alex

> I am working a bit on refining the patches, so I want to enable testing
> with some SoC pin controllers as well and possibly make the
> behavior default.
> 
> Yours,
> Linus Walleij
>