linux-kernel - [PATCH 08/10] ARM: dts: imx6qdl-kontron-samx6i: add SDIO_PWR

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Date: Tue,  4 Jun 2024 15:59:32 +0200
From: Michael Walle <mwalle@...nel.org>
To: Rob Herring <robh@...nel.org>,
	Krzysztof Kozlowski <krzk+dt@...nel.org>,
	Conor Dooley <conor+dt@...nel.org>,
	Shawn Guo <shawnguo@...nel.org>,
	Sascha Hauer <s.hauer@...gutronix.de>,
	Li Yang <leoyang.li@....com>
Cc: Pengutronix Kernel Team <kernel@...gutronix.de>,
	Fabio Estevam <festevam@...il.com>,
	Priit Laes <plaes@...es.org>,
	Michael Grzeschik <m.grzeschik@...gutronix.de>,
	devicetree@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	imx@...ts.linux.dev,
	linux-arm-kernel@...ts.infradead.org,
	Michael Walle <mwalle@...nel.org>
Subject: [PATCH 08/10] ARM: dts: imx6qdl-kontron-samx6i: add SDIO_PWR_EN support

The module can enable/disable the SD card power supply and has
it's dedicated pin SDIO_PWR_EN for that reason. This is esp.
useful to be able to reset the SD card if it was in an UHS mode.

Signed-off-by: Michael Walle <mwalle@...nel.org>
---
 .../dts/nxp/imx/imx6qdl-kontron-samx6i.dtsi   | 20 ++++++++++++++++++-
 1 file changed, 19 insertions(+), 1 deletion(-)

diff --git a/arch/arm/boot/dts/nxp/imx/imx6qdl-kontron-samx6i.dtsi b/arch/arm/boot/dts/nxp/imx/imx6qdl-kontron-samx6i.dtsi
index 4d3cd338a707..d36743e47552 100644
--- a/arch/arm/boot/dts/nxp/imx/imx6qdl-kontron-samx6i.dtsi
+++ b/arch/arm/boot/dts/nxp/imx/imx6qdl-kontron-samx6i.dtsi
@@ -61,6 +61,18 @@ reg_3p3v_s5: regulator-3p3v-s5 {
 		vin-supply = <&reg_smarc_suppy>;
 	};
 
+	reg_sdio: regulator-sdio {
+		compatible = "regulator-fixed";
+		pinctrl-names = "default";
+		pinctrl-0 = <&pinctrl_reg_sdio>;
+		regulator-name = "V_3V3_SD";
+		regulator-min-microvolt = <3300000>;
+		regulator-max-microvolt = <3300000>;
+		gpio = <&gpio1 29 GPIO_ACTIVE_HIGH>;
+		off-on-delay-us = <20000>;
+		enable-active-high;
+	};
+
 	reg_smarc_lcdbklt: regulator-smarc-lcdbklt {
 		compatible = "regulator-fixed";
 		pinctrl-names = "default";
@@ -640,6 +652,12 @@ MX6QDL_PAD_SD1_CMD__PWM4_OUT 0x1b0b1
 		>;
 	};
 
+	pinctrl_reg_sdio: reg-sdiogrp {
+		fsl,pins = <
+			MX6QDL_PAD_ENET_TXD1__GPIO1_IO29 0x1b0b0 /* SDIO_PWR_EN */
+		>;
+	};
+
 	pinctrl_uart1: uart1grp {
 		fsl,pins = <
 			MX6QDL_PAD_CSI0_DAT11__UART1_RX_DATA 0x1b0b1
@@ -692,7 +710,6 @@ MX6QDL_PAD_SD3_DAT3__SD3_DATA3 0x17059
 
 			MX6QDL_PAD_NANDF_CS1__GPIO6_IO14 0x1b0b0 /* CD */
 			MX6QDL_PAD_ENET_RXD1__GPIO1_IO26 0x1b0b0 /* WP */
-			MX6QDL_PAD_ENET_TXD1__GPIO1_IO29 0x1b0b0 /* PWR_EN */
 		>;
 	};
 
@@ -795,6 +812,7 @@ &usdhc3 {
 	pinctrl-0 = <&pinctrl_usdhc3>;
 	cd-gpios = <&gpio6 14 GPIO_ACTIVE_LOW>;
 	wp-gpios = <&gpio1 26 GPIO_ACTIVE_HIGH>;
+	vmmc-supply = <&reg_sdio>;
 	no-1-8-v;
 };
 
-- 
2.39.2