linux-kernel - [PATCH 3/6] ARM: dts: stm32: Enable sdio1 for stm32f746-eval

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Message-ID: <1519897421-23803-4-git-send-email-patrice.chotard@st.com>
Date:   Thu, 1 Mar 2018 10:43:38 +0100
From:   <patrice.chotard@...com>
To:     <robh+dt@...nel.org>, <mark.rutland@....com>,
        <linux@...linux.org.uk>, <linux-arm-kernel@...ts.infradead.org>,
        <linux-kernel@...r.kernel.org>, <devicetree@...r.kernel.org>,
        <alexandre.torgue@...com>, <lee.jones@...aro.org>
CC:     <mcoquelin.stm32@...il.com>,
        Patrice Chotard <patrice.chotard@...com>
Subject: [PATCH 3/6] ARM: dts: stm32: Enable sdio1 for stm32f746-eval

From: Patrice Chotard <patrice.chotard@...com>

Adds SDIO related DT nodes for stm32f746-eval board.

broken-cd property is needed as card detect signal is
connected to a GPIO expander which is not yet supported
in kernel linux.

Signed-off-by: Patrice Chotard <patrice.chotard@...com>
---
 arch/arm/boot/dts/stm32746g-eval.dts | 17 +++++++++++++++++
 1 file changed, 17 insertions(+)

diff --git a/arch/arm/boot/dts/stm32746g-eval.dts b/arch/arm/boot/dts/stm32746g-eval.dts
index b2d4b8c46677..63160199e39a 100644
--- a/arch/arm/boot/dts/stm32746g-eval.dts
+++ b/arch/arm/boot/dts/stm32746g-eval.dts
@@ -91,6 +91,13 @@
 		clocks = <&rcc 0 STM32F7_AHB1_CLOCK(OTGHSULPI)>;
 		clock-names = "main_clk";
 	};
+
+	mmc_vcard: mmc_vcard {
+		compatible = "regulator-fixed";
+		regulator-name = "mmc_vcard";
+		regulator-min-microvolt = <3300000>;
+		regulator-max-microvolt = <3300000>;
+	};
 };
 
 &clk_hse {
@@ -113,6 +120,16 @@
 	status = "okay";
 };
 
+&sdio1 {
+	status = "okay";
+	vmmc-supply = <&mmc_vcard>;
+	broken-cd;
+	pinctrl-names = "default", "opendrain";
+	pinctrl-0 = <&sdio_pins>;
+	pinctrl-1 = <&sdio_pins_od>;
+	bus-width = <4>;
+};
+
 &usart1 {
 	pinctrl-0 = <&usart1_pins_a>;
 	pinctrl-names = "default";
-- 
1.9.1