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arm64: dts: imx8mm-verdin: Link reg_usdhc2_vqmmc to usdhc2

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Define vqmmc regulator-gpio for usdhc2 with vin-supply
coming from LDO5.

Without this definition LDO5 will be powered down, disabling
SD card after bootup. This has been introduced in commit
f5aab0438e ("regulator: pca9450: Fix enable register for LDO5").

Fixes: 6a57f224f7 ("arm64: dts: freescale: add initial support for verdin imx8m mini")
Fixes: f5aab0438e ("regulator: pca9450: Fix enable register for LDO5")
Tested-by: Manuel Traut <manuel.traut@mt.com>
Reviewed-by: Philippe Schenker <philippe.schenker@impulsing.ch>
Tested-by: Francesco Dolcini <francesco.dolcini@toradex.com>
Reviewed-by: Francesco Dolcini <francesco.dolcini@toradex.com>
Cc: stable@vger.kernel.org
Signed-off-by: Wojciech Dubowik <Wojciech.Dubowik@mt.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
This commit is contained in:
Wojciech Dubowik 2025-04-24 11:59:14 +02:00 • committed by Shawn Guo
parent 1526a735a7
commit 5591ce0069
1 changed files with 20 additions and 5 deletions
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25
arch/arm64/boot/dts/freescale/imx8mm-verdin.dtsi
View file

@ -144,6 +144,19 @@
startup-delay-us = <20000>;
};
reg_usdhc2_vqmmc: regulator-usdhc2-vqmmc {
compatible = "regulator-gpio";
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_usdhc2_vsel>;
gpios = <&gpio1 4 GPIO_ACTIVE_HIGH>;
regulator-max-microvolt = <3300000>;
regulator-min-microvolt = <1800000>;
states = <1800000 0x1>,
<3300000 0x0>;
regulator-name = "PMIC_USDHC_VSELECT";
vin-supply = <&reg_nvcc_sd>;
};
reserved-memory {
#address-cells = <2>;
#size-cells = <2>;
@ -269,7 +282,7 @@
"SODIMM_19",
"",
"",
"",
"PMIC_USDHC_VSELECT",
"",
"",
"",
@ -785,6 +798,7 @@
pinctrl-2 = <&pinctrl_usdhc2_200mhz>, <&pinctrl_usdhc2_cd>;
pinctrl-3 = <&pinctrl_usdhc2_sleep>, <&pinctrl_usdhc2_cd_sleep>;
vmmc-supply = <&reg_usdhc2_vmmc>;
vqmmc-supply = <&reg_usdhc2_vqmmc>;
};
&wdog1 {
@ -1206,13 +1220,17 @@
<MX8MM_IOMUXC_NAND_CLE_GPIO3_IO5 0x6>; /* SODIMM 76 */
};
pinctrl_usdhc2_vsel: usdhc2vselgrp {
fsl,pins =
<MX8MM_IOMUXC_GPIO1_IO04_GPIO1_IO4 0x10>; /* PMIC_USDHC_VSELECT */
};
/*
* Note: Due to ERR050080 we use discrete external on-module resistors pulling-up to the
* on-module +V3.3_1.8_SD (LDO5) rail and explicitly disable the internal pull-ups here.
*/
pinctrl_usdhc2: usdhc2grp {
fsl,pins =
<MX8MM_IOMUXC_GPIO1_IO04_USDHC2_VSELECT 0x10>,
<MX8MM_IOMUXC_SD2_CLK_USDHC2_CLK 0x90>, /* SODIMM 78 */
<MX8MM_IOMUXC_SD2_CMD_USDHC2_CMD 0x90>, /* SODIMM 74 */
<MX8MM_IOMUXC_SD2_DATA0_USDHC2_DATA0 0x90>, /* SODIMM 80 */
@ -1223,7 +1241,6 @@
pinctrl_usdhc2_100mhz: usdhc2-100mhzgrp {
fsl,pins =
<MX8MM_IOMUXC_GPIO1_IO04_USDHC2_VSELECT 0x10>,
<MX8MM_IOMUXC_SD2_CLK_USDHC2_CLK 0x94>,
<MX8MM_IOMUXC_SD2_CMD_USDHC2_CMD 0x94>,
<MX8MM_IOMUXC_SD2_DATA0_USDHC2_DATA0 0x94>,
@ -1234,7 +1251,6 @@
pinctrl_usdhc2_200mhz: usdhc2-200mhzgrp {
fsl,pins =
<MX8MM_IOMUXC_GPIO1_IO04_USDHC2_VSELECT 0x10>,
<MX8MM_IOMUXC_SD2_CLK_USDHC2_CLK 0x96>,
<MX8MM_IOMUXC_SD2_CMD_USDHC2_CMD 0x96>,
<MX8MM_IOMUXC_SD2_DATA0_USDHC2_DATA0 0x96>,
@ -1246,7 +1262,6 @@
/* Avoid backfeeding with removed card power */
pinctrl_usdhc2_sleep: usdhc2slpgrp {
fsl,pins =
<MX8MM_IOMUXC_GPIO1_IO04_USDHC2_VSELECT 0x0>,
<MX8MM_IOMUXC_SD2_CLK_USDHC2_CLK 0x0>,
<MX8MM_IOMUXC_SD2_CMD_USDHC2_CMD 0x0>,
<MX8MM_IOMUXC_SD2_DATA0_USDHC2_DATA0 0x0>,