ARM: dts: stm32: Enable voltage translator auto-detection on DHCOM

The DHCOM SoM uSD slot has an optional voltage level translator, add
DT bindings which permit the MMCI driver to detect the translator
automatically.

Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Alexandre Torgue <alexandre.torgue@st.com>
Cc: Linus Walleij <linus.walleij@linaro.org>
Cc: Ludovic Barre <ludovic.barre@st.com>
Cc: Ulf Hansson <ulf.hansson@linaro.org>
Cc: linux-stm32@st-md-mailman.stormreply.com
Signed-off-by: Alexandre Torgue <alexandre.torgue@foss.st.com>

diff --git a/arch/arm/boot/dts/stm32mp15xx-dhcom-som.dtsi b/arch/arm/boot/dts/stm32mp15xx-dhcom-som.dtsi
index 2a20818..2617815 100644 (file)
--- a/arch/arm/boot/dts/stm32mp15xx-dhcom-som.dtsi
+++ b/arch/arm/boot/dts/stm32mp15xx-dhcom-som.dtsi
@@ -386,14 +386,19 @@
 };
 
 &sdmmc1 {
-       pinctrl-names = "default", "opendrain", "sleep";
+       pinctrl-names = "default", "opendrain", "sleep", "init";
        pinctrl-0 = <&sdmmc1_b4_pins_a &sdmmc1_dir_pins_a>;
        pinctrl-1 = <&sdmmc1_b4_od_pins_a &sdmmc1_dir_pins_a>;
        pinctrl-2 = <&sdmmc1_b4_sleep_pins_a &sdmmc1_dir_sleep_pins_a>;
+       pinctrl-3 = <&sdmmc1_b4_init_pins_a &sdmmc1_dir_init_pins_a>;
        cd-gpios = <&gpiog 1 (GPIO_ACTIVE_LOW | GPIO_PULL_UP)>;
        disable-wp;
        st,sig-dir;
        st,neg-edge;
+       st,use-ckin;
+       st,cmd-gpios = <&gpiod 2 0>;
+       st,ck-gpios = <&gpioc 12 0>;
+       st,ckin-gpios = <&gpioe 4 0>;
        bus-width = <4>;
        vmmc-supply = <&vdd_sd>;
        status = "okay";