[3.13.y-ckt stable] Patch "pinctrl: sh-pfc: only use dummy states for non-DT platforms" has been added to the 3.13.y-ckt tree

[Sergei Shtylyov]

Hello.

On 04/13/2016 01:03 AM, Kamal Mostafa wrote:

> This is a note to let you know that I have just added a patch titled
>
>      pinctrl: sh-pfc: only use dummy states for non-DT platforms
>
> to the linux-3.13.y-queue branch of the 3.13.y-ckt extended stable tree
> which can be found at:
>
>      http://kernel.ubuntu.com/git/ubuntu/linux.git/log/?h=linux-3.13.y-queue
>
> This patch is scheduled to be released in version 3.13.11-ckt39.
>
> If you, or anyone else, feels it should not be added to this tree, please
> reply to this email.
>
> For more information about the 3.13.y-ckt tree, see
> https://wiki.ubuntu.com/Kernel/Dev/ExtendedStable
>
> Thanks.
> -Kamal
>
> ---8<------------------------------------------------------------
>
>  From effbcb235ac6fca3a1675bcff0bc657ed498279d Mon Sep 17 00:00:00 2001
> From: Wolfram Sang <wsa+renesas at sang-engineering.com>
> Date: Mon, 7 Mar 2016 19:40:57 +0100
> Subject: pinctrl: sh-pfc: only use dummy states for non-DT platforms
>
> commit 0129801be4b87226bf502f18f5a9eabd356d1058 upstream.
>
> If pinctrl_provide_dummies() is used unconditionally, then the dummy
> state will be used even on DT platforms when the "init" state was
> intentionally left out. Instead of "default", the dummy "init" state
> will then be used during probe. Thus, when probing an I2C controller on
> cold boot, communication triggered by bus notifiers broke because the
> pins were not initialized.
>
> Do it like OMAP2: use the dummy state only for non-DT platforms.
>
> Fixes: ef0eebc05130 ("drivers/pinctrl: Add the concept of an "init" state")

    I somewhat doubt this commit is in 3.13.y -- it's pretty recent, made last 
autumn. Have you checked this?

> Reported-by: Geert Uytterhoeven <geert+renesas at glider.be>
> Signed-off-by: Wolfram Sang <wsa+renesas at sang-engineering.com>
> Acked-by: Sergei Shtylyov <sergei.shtylyov at cogentembedded.com>
> Tested-by: Geert Uytterhoeven <geert+renesas at glider.be>
> Signed-off-by: Linus Walleij <linus.walleij at linaro.org>
> Signed-off-by: Kamal Mostafa <kamal at canonical.com>
[...]

MBR, Sergei