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From: Samuel Holland <samuel@sholland.org>
To: Maxime Ripard <mripard@kernel.org>, Chen-Yu Tsai <wens@csie.org>,
	Jernej Skrabec <jernej.skrabec@siol.net>
Cc: devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org,
	linux-sunxi@lists.linux.dev, linux-kernel@vger.kernel.org,
	Samuel Holland <samuel@sholland.org>
Subject: [PATCH 2/2] arm64: dts: allwinner: Enforce consistent MMC numbering
Date: Sun, 18 Apr 2021 21:52:46 -0500	[thread overview]
Message-ID: <20210419025246.21722-3-samuel@sholland.org> (raw)
In-Reply-To: <20210419025246.21722-1-samuel@sholland.org>

Traditionally, the sunxi-mmc device numbers matched the register address
order. However, that was broken by asynchronous probe, and now the MMC
device numbers are not deterministic. Add aliases to keep the device
numbers consistent between boots. Use the traditional order, since there
is no need to change it.

Signed-off-by: Samuel Holland <samuel@sholland.org>
---
 arch/arm64/boot/dts/allwinner/sun50i-a64.dtsi | 6 ++++++
 arch/arm64/boot/dts/allwinner/sun50i-h6.dtsi  | 6 ++++++
 2 files changed, 12 insertions(+)

diff --git a/arch/arm64/boot/dts/allwinner/sun50i-a64.dtsi b/arch/arm64/boot/dts/allwinner/sun50i-a64.dtsi
index 9b58cfbefa6d..3df70a41b3b9 100644
--- a/arch/arm64/boot/dts/allwinner/sun50i-a64.dtsi
+++ b/arch/arm64/boot/dts/allwinner/sun50i-a64.dtsi
@@ -17,6 +17,12 @@ / {
 	#address-cells = <1>;
 	#size-cells = <1>;
 
+	aliases {
+		mmc0 = &mmc0;
+		mmc1 = &mmc1;
+		mmc2 = &mmc2;
+	};
+
 	chosen {
 		#address-cells = <1>;
 		#size-cells = <1>;
diff --git a/arch/arm64/boot/dts/allwinner/sun50i-h6.dtsi b/arch/arm64/boot/dts/allwinner/sun50i-h6.dtsi
index d8ebc1a84af9..4bdc48caf68a 100644
--- a/arch/arm64/boot/dts/allwinner/sun50i-h6.dtsi
+++ b/arch/arm64/boot/dts/allwinner/sun50i-h6.dtsi
@@ -16,6 +16,12 @@ / {
 	#address-cells = <1>;
 	#size-cells = <1>;
 
+	aliases {
+		mmc0 = &mmc0;
+		mmc1 = &mmc1;
+		mmc2 = &mmc2;
+	};
+
 	cpus {
 		#address-cells = <1>;
 		#size-cells = <0>;
-- 
2.26.3


  parent reply	other threads:[~2021-04-19  2:52 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-04-19  2:52 [PATCH 0/2] sunxi: Enforce consistent MMC numbering Samuel Holland
2021-04-19  2:52 ` [PATCH 1/2] ARM: dts: sunxi: h3/h5: " Samuel Holland
2021-04-19  2:52 ` Samuel Holland [this message]
2021-04-19  3:17 ` [PATCH 0/2] sunxi: " Chen-Yu Tsai
2021-04-19  8:54   ` Andre Przywara
2021-04-30  9:10     ` Maxime Ripard
2021-04-30 10:55       ` Andre Przywara
2021-05-24 13:56         ` Maxime Ripard

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