Re: [PATCH 1/2] pinctrl: pinctrl-single: Make sure we do notchange bits outside of mask

From: Tony Lindgren
Date: Fri Sep 07 2012 - 17:39:20 EST


* Linus Walleij <linus.walleij@xxxxxxxxxx> [120907 14:13]:
> On Thu, Sep 6, 2012 at 8:59 PM, Tony Lindgren <tony@xxxxxxxxxxx> wrote:
> > * Peter Ujfalusi <peter.ujfalusi@xxxxxx> [120905 02:02]:
> >> Use the pcs->fmask to make sure that the value is not changing (setting)
> >> bits in areas where it should not.
> >> To avoid situations like this:
> >>
> >> pmx_dummy: pinmux@4a100040 {
> >> compatible = "pinctrl-single";
> >> reg = <0x4a100040 0x0196>;
> >> #address-cells = <1>;
> >> #size-cells = <0>;
> >> pinctrl-single,register-width = <16>;
> >> pinctrl-single,function-mask = <0x00ff>;
> >> };
> >>
> >> &pmx_dummy {
> >> pinctrl-names = "default";
> >> pinctrl-0 = <&board_pins>;
> >>
> >> board_pins: pinmux_board_pins {
> >> pinctrl-single,pins = <
> >> 0x6c 0xf0f
> >> 0x6e 0x10f
> >> 0x70 0x23f
> >> 0x72 0xa5f
> >> >;
> >> };
> >> };
> >>
> >> Signed-off-by: Peter Ujfalusi <peter.ujfalusi@xxxxxx>
> >
> > Thanks this is a valid fix:
> >
> > Acked-by: Tony Lindgren <tony@xxxxxxxxxxx>
>
> Since nothing in v3.6 is using pinctrl-simple yet, it's not a regression
> right?

Right.

> So can you just group this with the other pinctrl things you are
> harvesting in the OMAP tree? I was going to push it for
> the v3.7 cycle otherwise.

You can take this for v3.7, the changes I have are just adding .dts
entries to use the driver. The driver related changes are being
merged by the related driver lists.

Regards,

Tony
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