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Message-ID: <TYWPR01MB87755B1EEDEA676237009CF3C22EA@TYWPR01MB8775.jpnprd01.prod.outlook.com>
Date:   Tue, 4 Jul 2023 15:48:19 +0000
From:   Fabrizio Castro <fabrizio.castro.jz@...esas.com>
To:     Geert Uytterhoeven <geert+renesas@...der.be>,
        Linus Walleij <linus.walleij@...aro.org>,
        Prabhakar Mahadev Lad <prabhakar.mahadev-lad.rj@...renesas.com>,
        Chris Paterson <Chris.Paterson2@...esas.com>,
        Biju Das <biju.das@...renesas.com>
CC:     "linux-renesas-soc@...r.kernel.org" 
        <linux-renesas-soc@...r.kernel.org>,
        "linux-gpio@...r.kernel.org" <linux-gpio@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: RE: [PATCH/RFT] pinctrl: renesas: rzv2m: Handle non-unique subnode
 names

Hi Geert,

Thank you for your patch!

> From: Geert Uytterhoeven <geert+renesas@...der.be>
> 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@...esas.com>
> Fixes: 92a9b825257614af ("pinctrl: renesas: Add RZ/V2M pin and gpio
> controller driver")
> Signed-off-by: Geert Uytterhoeven <geert+renesas@...der.be>

Tested-by: Fabrizio Castro <fabrizio.castro.jz@...esas.com>

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