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ARM: dts: bcm2711: Add vmmc regulator in emmc2 

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
This commit is contained in:
Nicolas Saenz Julienne 2020-03-06 18:44:13 +01:00
parent 155c58f225
commit 8f7a54a74d
1 changed files with 11 additions and 0 deletions
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11
arch/arm/boot/dts/bcm2711-rpi-4-b.dts
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@ -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";
};