Re: [PATCH 10/10] ARM: dts: bcm2711: Add vmmc regulator in emmc2

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Nicolas, Stefan,

On 06/03/2020 11:07, Stefan Wahren wrote:
Hi Nicolas,

On 06.03.20 11:38, Nicolas Saenz Julienne wrote:
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@xxxxxxx>
---
  arch/arm/boot/dts/bcm2711-rpi-4-b.dts | 11 +++++++++++
  1 file changed, 11 insertions(+)

diff --git a/arch/arm/boot/dts/bcm2711-rpi-4-b.dts b/arch/arm/boot/dts/bcm2711-rpi-4-b.dts
index e26ea9006378..8e98e917f9f4 100644
--- a/arch/arm/boot/dts/bcm2711-rpi-4-b.dts
+++ b/arch/arm/boot/dts/bcm2711-rpi-4-b.dts
@@ -56,6 +56,16 @@ sd_io_1v8_reg: sd_io_1v8_reg {
  			  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>;
this new GPIO has an empty GPIO label, please add it.

The correct name would be "SD_PWR_ON".

+	};
  };
&firmware {
@@ -174,6 +184,7 @@ brcmf: wifi@1 {
  /* 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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