linux-kernel - [PATCH v2 04/12] fix: dts: a8k: Add CP eMMC regulator and update device parameters

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Date:   Wed, 10 Feb 2021 16:09:41 +0200
From:   <kostap@...vell.com>
To:     <linux-kernel@...r.kernel.org>, <devicetree@...r.kernel.org>,
        <linux-arm-kernel@...ts.infradead.org>
CC:     <linux@...linux.org.uk>, <robh+dt@...nel.org>,
        <sebastian.hesselbarth@...il.com>, <gregory.clement@...tlin.com>,
        <andrew@...n.ch>, <mw@...ihalf.com>, <jaz@...ihalf.com>,
        <nadavh@...vell.com>, <stefanc@...vell.com>, <bpeled@...vell.com>,
        "Konstantin Porotchkin" <kostap@...vell.com>
Subject: [PATCH v2 04/12] fix: dts: a8k: Add CP eMMC regulator and update device parameters

From: Konstantin Porotchkin <kostap@...vell.com>

Add GPIO regulator for controlling CP0 eMMC voltage (3.3V/1.8V)
Update CP0 SDHCI parameters in A7K/A8K boards DTS files.

Signed-off-by: Konstantin Porotchkin <kostap@...vell.com>
---
 arch/arm64/boot/dts/marvell/armada-7040-db.dts | 17 ++++++++++++++++-
 arch/arm64/boot/dts/marvell/armada-8040-db.dts | 18 +++++++++++++++++-
 2 files changed, 33 insertions(+), 2 deletions(-)

diff --git a/arch/arm64/boot/dts/marvell/armada-7040-db.dts b/arch/arm64/boot/dts/marvell/armada-7040-db.dts
index a7eb4e7697a2..f8179cadc610 100644
--- a/arch/arm64/boot/dts/marvell/armada-7040-db.dts
+++ b/arch/arm64/boot/dts/marvell/armada-7040-db.dts
@@ -28,6 +28,19 @@
 		ethernet2 = &cp0_eth2;
 	};
 
+	cp0_vccq_sd0_reg: cp0_vccq_sd0 {
+		compatible = "regulator-gpio";
+		regulator-name = "cp0-vccq-sd0";
+		regulator-min-microvolt = <1800000>;
+		regulator-max-microvolt = <3300000>;
+		regulator-boot-on;
+		gpios = <&expander0 15 GPIO_ACTIVE_HIGH>;
+		gpios-states = <0>;
+		states = <1800000 0x1
+			  3300000 0x0>;
+		enable-active-high;
+	};
+
 	cp0_exp_usb3_0_current_regulator: gpio-regulator {
 		compatible = "regulator-gpio";
 		regulator-name = "cp0-usb3-0-current-regulator";
@@ -253,8 +266,10 @@
 
 &cp0_sdhci0 {
 	status = "okay";
+	pinctrl-names = "default";
+	pinctrl-0 = <&sdhci_pins>;
 	bus-width = <4>;
-	no-1-8-v;
+	vqmmc-supply = <&cp0_vccq_sd0_reg>;
 	cd-gpios = <&expander0 12 GPIO_ACTIVE_LOW>;
 };
 
diff --git a/arch/arm64/boot/dts/marvell/armada-8040-db.dts b/arch/arm64/boot/dts/marvell/armada-8040-db.dts
index 09fb5256f1db..790c7ab0b816 100644
--- a/arch/arm64/boot/dts/marvell/armada-8040-db.dts
+++ b/arch/arm64/boot/dts/marvell/armada-8040-db.dts
@@ -31,6 +31,19 @@
 		i2c2 = &cp1_i2c0;
 	};
 
+	cp0_vccq_sd0_reg: cp0_vccq_sd0 {
+		compatible = "regulator-gpio";
+		regulator-name = "cp0-vccq-sd0";
+		regulator-min-microvolt = <1800000>;
+		regulator-max-microvolt = <3300000>;
+		regulator-boot-on;
+		gpios = <&expander0 15 GPIO_ACTIVE_HIGH>;
+		gpios-states = <0>;
+		states = <1800000 0x1
+			  3300000 0x0>;
+		enable-active-high;
+	};
+
 	cp0_reg_usb3_0_vbus: cp0-usb3-0-vbus {
 		compatible = "regulator-fixed";
 		regulator-name = "cp0-usb3h0-vbus";
@@ -353,6 +366,9 @@
 
 &cp0_sdhci0 {
 	status = "okay";
-	bus-width = <8>;
+	pinctrl-names = "default";
+	pinctrl-0 = <&sdhci_pins>;
+	bus-width = <4>;
+	vqmmc-supply = <&cp0_vccq_sd0_reg>;
 	non-removable;
 };
-- 
2.17.1