[PATCH] ARM: dts: stm32: fix display pinmux for stm32f746-disco

[Dario Binacchi]

On Thu, Jun 1, 2023 at 7:11 PM Tom Rini <trini at konsulko.com> wrote:
>
> On Thu, Jun 01, 2023 at 07:06:02PM +0200, Dario Binacchi wrote:
> > As reported by the datasheet (DocID027590 Rev 4) for PG12:
> > - AF9  -> LCD_B4
> > - AF14 -> LCD_B1
> >
> > So replace AF14 with AF9 for PG12 in the dts.
> >
> > Fixes: fe63d3cfb77ef ("ARM: dts: stm32: Sync DT with v4.20 kernel for stm32f7")
> > Signed-off-by: Dario Binacchi <dario.binacchi at amarulasolutions.com>
> >
> > ---
> >
> >  arch/arm/dts/stm32f746-disco-u-boot.dtsi | 2 +-
> >  1 file changed, 1 insertion(+), 1 deletion(-)
> >
> > diff --git a/arch/arm/dts/stm32f746-disco-u-boot.dtsi b/arch/arm/dts/stm32f746-disco-u-boot.dtsi
> > index 19b5451db441..522cffb1ac9f 100644
> > --- a/arch/arm/dts/stm32f746-disco-u-boot.dtsi
> > +++ b/arch/arm/dts/stm32f746-disco-u-boot.dtsi
> > @@ -169,7 +169,7 @@
> >       ltdc_pins: ltdc at 0 {
> >               pins {
> >                       pinmux = <STM32_PINMUX('E', 4, AF14)>, /* B0 */
> > -                              <STM32_PINMUX('G',12, AF14)>, /* B4 */
> > +                              <STM32_PINMUX('G',12, AF9)>,  /* B4 */
> >                                <STM32_PINMUX('I', 9, AF14)>, /* VSYNC */
> >                                <STM32_PINMUX('I',10, AF14)>, /* HSYNC */
> >                                <STM32_PINMUX('I',14, AF14)>, /* CLK */
>
> Why is this whole stanza in a -u-boot.dtsi file and not an upstream
> file?

I just submitted a series to the linux kernel to add support for
display on stm32f746-disco.
https://lore.kernel.org/linux-arm-kernel/20230601170320.2845218-1-dario.binacchi@amarulasolutions.com/T/

Thanks and regards,
Dario
>
> --
> Tom



-- 

Dario Binacchi

Senior Embedded Linux Developer

dario.binacchi at amarulasolutions.com

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