On 03/07/2017 10:52 AM, Florian Fainelli wrote:
> In case a platform only defaults a "default" set of pins, but not a
> "sleep" set of pins, and this particular platform suspends and resumes
> in a way that the pin states are not preserved by the hardware, when we
> resume, we would call pinctrl_single_resume() -> pinctrl_force_default()
> -> pinctrl_select_state() and the first thing we do is check that the
> pins state is the same as before, and do nothing.
>
> In order to fix this, just remove the p->state == state check from
> pinctrl_select_state() since it would not allow callers of this function
> to get the pins to be brought into the expected state.
>
> Fixes: 6e5e959dde0d ("pinctrl: API changes to support multiple states per
> device")
> Signed-off-by: Florian Fainelli <[email protected]>
> ---
Linus am I hitting some of your spam folder, or you are really having
way too much fun with Gemini ;) ?
> Changes in v4:
>
> - just remove the p->state == state check because it cannot allow
> pinctrl_select_state
> to work for callers that expect it to do the actual state change
>
> Changes in v3:
>
> - move the state check to pinctrl_select_state
>
> Changes in v2:
>
> - rename __pinctrl_select_state to pinctrl_commit_state
>
> drivers/pinctrl/core.c | 3 ---
> 1 file changed, 3 deletions(-)
>
> diff --git a/drivers/pinctrl/core.c b/drivers/pinctrl/core.c
> index d69046537b75..33cef0a65c9c 100644
> --- a/drivers/pinctrl/core.c
> +++ b/drivers/pinctrl/core.c
> @@ -1203,9 +1203,6 @@ int pinctrl_select_state(struct pinctrl *p, struct
> pinctrl_state *state)
> struct pinctrl_state *old_state = p->state;
> int ret;
>
> - if (p->state == state)
> - return 0;
> -
> if (p->state) {
> /*
> * For each pinmux setting in the old state, forget SW's record
>
--
Florian
