Re: [PATCH/RFT] pinctrl: renesas: rzv2m: Handle non-unique subnode names

[Geert Uytterhoeven <geert@xxxxxxxxxxxxxx>]

On Tue, Jul 4, 2023 at 5:48 PM Fabrizio Castro
<fabrizio.castro.jz@xxxxxxxxxxx> wrote:
> > From: Geert Uytterhoeven <geert+renesas@xxxxxxxxx>
> > Subject: [PATCH/RFT] pinctrl: renesas: rzv2m: Handle non-unique subnode
> > names
> >
> > The eMMC and SDHI pin control configuration nodes in DT have subnodes
> > with the same names ("data" and "ctrl").  As the RZ/V2M pin control
> > driver considers only the names of the subnodes, this leads to
> > conflicts:
> >
> >     pinctrl-rzv2m b6250000.pinctrl: pin P8_2 already requested by
> > 85000000.mmc; cannot claim for 85020000.mmc
> >     pinctrl-rzv2m b6250000.pinctrl: pin-130 (85020000.mmc) status -22
> >     renesas_sdhi_internal_dmac 85020000.mmc: Error applying setting, reverse
> > things back
> >
> > Fix this by constructing unique names from the node names of both the
> > pin control configuration node and its child node, where appropriate.
> >
> > Reported by: Fabrizio Castro <fabrizio.castro.jz@xxxxxxxxxxx>
> > Fixes: 92a9b825257614af ("pinctrl: renesas: Add RZ/V2M pin and gpio
> > controller driver")
> > Signed-off-by: Geert Uytterhoeven <geert+renesas@xxxxxxxxx>
>
> Tested-by: Fabrizio Castro <fabrizio.castro.jz@xxxxxxxxxxx>

Thanks, will queue as a fix in renesas-pinctrl-for-v6.5.

Gr{oetje,eeting}s,

                        Geert

-- 
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@xxxxxxxxxxxxxx

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                                -- Linus Torvalds