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From:   Greg Kroah-Hartman <gregkh@linuxfoundation.org>
To:     linux-kernel@vger.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
        stable@vger.kernel.org, Bin Meng <bin.meng@windriver.com>,
        Palmer Dabbelt <palmer@rivosinc.com>
Subject: [PATCH 5.15 143/177] riscv: dts: unmatched: Add gpio card detect to mmc-spi-slot
Date:   Mon, 20 Dec 2021 15:34:53 +0100
Message-Id: <20211220143044.897705621@linuxfoundation.org>
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From: Bin Meng <bin.meng@windriver.com>

commit 298d03c2d7f1b5daacb6d4f4053fd3d677d67087 upstream.

Per HiFive Unmatched schematics, the card detect signal of the
micro SD card is connected to gpio pin #15, 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/6a06d6c0-6e66-49b5-8e9e-e68ce76f4192_hifive-unmatched-schematics-v3.pdf

Signed-off-by: Bin Meng <bin.meng@windriver.com>
Fixes: d573b5558abb ("riscv: dts: add initial board data for the SiFive HiFive Unmatched")
Cc: stable@vger.kernel.org
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 arch/riscv/boot/dts/sifive/hifive-unmatched-a00.dts |    2 ++
 1 file changed, 2 insertions(+)

--- a/arch/riscv/boot/dts/sifive/hifive-unmatched-a00.dts
+++ b/arch/riscv/boot/dts/sifive/hifive-unmatched-a00.dts
@@ -2,6 +2,7 @@
 /* Copyright (c) 2020 SiFive, Inc */
 
 #include "fu740-c000.dtsi"
+#include <dt-bindings/gpio/gpio.h>
 #include <dt-bindings/interrupt-controller/irq.h>
 
 /* Clock frequency (in Hz) of the PCB crystal for rtcclk */
@@ -228,6 +229,7 @@
 		spi-max-frequency = <20000000>;
 		voltage-ranges = <3300 3300>;
 		disable-wp;
+		gpios = <&gpio 15 GPIO_ACTIVE_LOW>;
 	};
 };