[PATCH v3 2/2] arm64: dts: ti: k3-j721e-common-proc-board: Add support for SD card UHS modes

[Sekhar Nori]

From: Faiz Abbas <faiz_abbas at ti.com>

Add support for UHS modes for the SD card connected at sdhci1. This
involves adding regulators for voltage switching and power cycling the
SD card and removing the no-1-8-v property.

Signed-off-by: Faiz Abbas <faiz_abbas at ti.com>
Signed-off-by: Sekhar Nori <nsekhar at ti.com>
---
 .../dts/ti/k3-j721e-common-proc-board.dts     | 33 +++++++++++++++++++
 arch/arm64/boot/dts/ti/k3-j721e-main.dtsi     |  2 --
 2 files changed, 33 insertions(+), 2 deletions(-)

diff --git a/arch/arm64/boot/dts/ti/k3-j721e-common-proc-board.dts b/arch/arm64/boot/dts/ti/k3-j721e-common-proc-board.dts
index 5754892f8501..60764366e22b 100644
--- a/arch/arm64/boot/dts/ti/k3-j721e-common-proc-board.dts
+++ b/arch/arm64/boot/dts/ti/k3-j721e-common-proc-board.dts
@@ -67,6 +67,31 @@
 		regulator-boot-on;
 	};
 
+	vdd_mmc1: fixedregulator-sd {
+		compatible = "regulator-fixed";
+		regulator-name = "vdd_mmc1";
+		regulator-min-microvolt = <3300000>;
+		regulator-max-microvolt = <3300000>;
+		regulator-boot-on;
+		enable-active-high;
+		vin-supply = <&vsys_3v3>;
+		gpio = <&exp2 2 GPIO_ACTIVE_HIGH>;
+	};
+
+	vdd_sd_dv_alt: gpio-regulator-TLV71033 {
+		compatible = "regulator-gpio";
+		pinctrl-names = "default";
+		pinctrl-0 = <&vdd_sd_dv_alt_pins_default>;
+		regulator-name = "tlv71033";
+		regulator-min-microvolt = <1800000>;
+		regulator-max-microvolt = <3300000>;
+		regulator-boot-on;
+		vin-supply = <&vsys_5v0>;
+		gpios = <&main_gpio0 117 GPIO_ACTIVE_HIGH>;
+		states = <1800000 0x0>,
+			 <3300000 0x1>;
+	};
+
 	sound0: sound at 0 {
 		compatible = "ti,j721e-cpb-audio";
 		model = "j721e-cpb";
@@ -106,6 +131,12 @@
 		>;
 	};
 
+	vdd_sd_dv_alt_pins_default: vdd-sd-dv-alt-pins-default {
+		pinctrl-single,pins = <
+			J721E_IOPAD(0x1d8, PIN_INPUT, 7) /* (W4) SPI1_CS1.GPIO0_117 */
+		>;
+	};
+
 	main_usbss0_pins_default: main-usbss0-pins-default {
 		pinctrl-single,pins = <
 			J721E_IOPAD(0x290, PIN_OUTPUT, 0) /* (U6) USB0_DRVVBUS */
@@ -295,6 +326,8 @@
 
 &main_sdhci1 {
 	/* SD/MMC */
+	vmmc-supply = <&vdd_mmc1>;
+	vqmmc-supply = <&vdd_sd_dv_alt>;
 	pinctrl-names = "default";
 	pinctrl-0 = <&main_mmc1_pins_default>;
 	ti,driver-strength-ohm = <50>;
diff --git a/arch/arm64/boot/dts/ti/k3-j721e-main.dtsi b/arch/arm64/boot/dts/ti/k3-j721e-main.dtsi
index d87748cb6896..2056a41f9378 100644
--- a/arch/arm64/boot/dts/ti/k3-j721e-main.dtsi
+++ b/arch/arm64/boot/dts/ti/k3-j721e-main.dtsi
@@ -1107,7 +1107,6 @@
 		ti,trm-icp = <0x8>;
 		ti,clkbuf-sel = <0x7>;
 		dma-coherent;
-		no-1-8-v;
 	};
 
 	main_sdhci2: sdhci at 4f98000 {
@@ -1128,7 +1127,6 @@
 		ti,trm-icp = <0x8>;
 		ti,clkbuf-sel = <0x7>;
 		dma-coherent;
-		no-1-8-v;
 	};
 
 	usbss0: cdns-usb at 4104000 {
-- 
2.17.1