linux-kernel - [PATCH] ARM: dts: imx6dl-yapp4: Use aliases to set custom MMC device indexes

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Message-Id: <1619790795-8375-1-git-send-email-michal.vokac@ysoft.com>
Date:   Fri, 30 Apr 2021 15:53:15 +0200
From:   Michal Vokáč <michal.vokac@...ft.com>
To:     Shawn Guo <shawnguo@...nel.org>
Cc:     Rob Herring <robh+dt@...nel.org>,
        Fabio Estevam <festevam@...il.com>, devicetree@...r.kernel.org,
        Sascha Hauer <s.hauer@...gutronix.de>,
        Pengutronix Kernel Team <kernel@...gutronix.de>,
        NXP Linux Team <linux-imx@....com>,
        linux-kernel@...r.kernel.org,
        Michal Vokáč <michal.vokac@...ft.com>
Subject: [PATCH] ARM: dts: imx6dl-yapp4: Use aliases to set custom MMC device indexes

Until commit fa2d0aa96941 ("mmc: core: Allow setting slot index via
device tree alias") was introduced, our usdhc3 and usdhc4 devices
were enumerated as mmc0 and mmc1. The mmc1 device is used to boot/update
the board and its name must be fixed.

With the referenced commit, aliases from imx6qdl.dtsi took effect.
Override the aliases to get back the original device indexes.

Signed-off-by: Michal Vokáč <michal.vokac@...ft.com>
---
 arch/arm/boot/dts/imx6dl-yapp4-common.dtsi | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/arch/arm/boot/dts/imx6dl-yapp4-common.dtsi b/arch/arm/boot/dts/imx6dl-yapp4-common.dtsi
index 686dab57a1e4..ff8d335ee482 100644
--- a/arch/arm/boot/dts/imx6dl-yapp4-common.dtsi
+++ b/arch/arm/boot/dts/imx6dl-yapp4-common.dtsi
@@ -11,6 +11,8 @@
 	aliases: aliases {
 		ethernet1 = &eth1;
 		ethernet2 = &eth2;
+		mmc0 = &usdhc3;
+		mmc1 = &usdhc4;
 	};
 
 	backlight: backlight {
-- 
2.1.4