linux-kernel - [PATCH 1/2] riscv: dts: unleashed: Add gpio card detect to mmc-spi-slot

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Date:   Wed, 16 Jun 2021 15:46:44 +0800
From:   Bin Meng <bmeng.cn@...il.com>
To:     Palmer Dabbelt <palmer@...belt.com>,
        Paul Walmsley <paul.walmsley@...ive.com>,
        David Abdurachmanov <david.abdurachmanov@...ive.com>,
        linux-kernel@...r.kernel.org, linux-riscv@...ts.infradead.org
Cc:     Bin Meng <bin.meng@...driver.com>
Subject: [PATCH 1/2] riscv: dts: unleashed: Add gpio card detect to mmc-spi-slot

From: Bin Meng <bin.meng@...driver.com>

Per HiFive Unleashed schematics, the card detect signal of the
micro SD card is connected to gpio pin #11, which should be
reflected in the DT via the <gpios> property, as described in
Documentation/devicetree/bindings/mmc/mmc-spi-slot.txt.

[1] https://sifive.cdn.prismic.io/sifive/c52a8e32-05ce-4aaf-95c8-7bf8453f8698_hifive-unleashed-a00-schematics-1.pdf

Signed-off-by: Bin Meng <bin.meng@...driver.com>
---

 arch/riscv/boot/dts/sifive/hifive-unleashed-a00.dts | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/riscv/boot/dts/sifive/hifive-unleashed-a00.dts b/arch/riscv/boot/dts/sifive/hifive-unleashed-a00.dts
index 60846e88ae4b..22f971e97161 100644
--- a/arch/riscv/boot/dts/sifive/hifive-unleashed-a00.dts
+++ b/arch/riscv/boot/dts/sifive/hifive-unleashed-a00.dts
@@ -80,6 +80,7 @@ mmc@0 {
 		spi-max-frequency = <20000000>;
 		voltage-ranges = <3300 3300>;
 		disable-wp;
+		gpios = <&gpio 11 GPIO_ACTIVE_LOW>;
 	};
 };
 
-- 
2.25.1