ARM: dts: bcm2711: Add vmmc regulator in emmc2 (8f7a54a7) · Commits · 戴 / test

The SD card power can be controlled trough a pin routed into the board's external GPIO expander. Turn that into a regulator and provide it to emmc2. Signed-off-by:

Nicolas Saenz Julienne <nsaenzjulienne@suse.de> Link: https://lore.kernel.org/r/20200306174413.20634-12-nsaenzjulienne@suse.de

arch/arm/boot/dts/bcm2711-rpi-4-b.dts

+11 −0

Original line number	Diff line number	Diff line
		@@ -53,6 +53,16 @@
		3300000 0x0>;
		status = "okay";
		};

		sd_vcc_reg: sd_vcc_reg {
		compatible = "regulator-fixed";
		regulator-name = "vcc-sd";
		regulator-min-microvolt = <3300000>;
		regulator-max-microvolt = <3300000>;
		regulator-boot-on;
		enable-active-high;
		gpio = <&expgpio 6 GPIO_ACTIVE_HIGH>;
		};
		};

		&firmware {
		@@ -171,6 +181,7 @@
		/* EMMC2 is used to drive the SD card */
		&emmc2 {
		vqmmc-supply = <&sd_io_1v8_reg>;
		vmmc-supply = <&sd_vcc_reg>;
		broken-cd;
		status = "okay";
		};

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