[PATCH v2 08/13] ARM: dts: imx6qdl-kontron-samx6i: add SDIO_PWR_EN support

Michael Walle
2024-06-06T09:02:47Z

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@kernel.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