linux-kernel - [PATCH v1] arm64: dts: mt7986: add overlay for SATA power socket on BPI-R3

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Message-Id: <20230901072730.13571-1-linux@fw-web.de>
Date:   Fri,  1 Sep 2023 09:27:30 +0200
From:   Frank Wunderlich <linux@...web.de>
To:     linux-mediatek@...ts.infradead.org
Cc:     Frank Wunderlich <frank-w@...lic-files.de>,
        Matthias Brugger <matthias.bgg@...il.com>,
        AngeloGioacchino Del Regno 
        <angelogioacchino.delregno@...labora.com>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Conor Dooley <conor+dt@...nel.org>,
        linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        devicetree@...r.kernel.org
Subject: [PATCH v1] arm64: dts: mt7986: add overlay for SATA power socket on BPI-R3

From: Frank Wunderlich <frank-w@...lic-files.de>

Bananapi R3 has a Power socket entended for using external SATA drives.
This Socket is off by default but can be switched with gpio 8.

Add an overlay to activate it.

Signed-off-by: Frank Wunderlich <frank-w@...lic-files.de>
---
 arch/arm64/boot/dts/mediatek/Makefile         |  1 +
 .../mt7986a-bananapi-bpi-r3-sata.dtso         | 39 +++++++++++++++++++
 2 files changed, 40 insertions(+)
 create mode 100644 arch/arm64/boot/dts/mediatek/mt7986a-bananapi-bpi-r3-sata.dtso

diff --git a/arch/arm64/boot/dts/mediatek/Makefile b/arch/arm64/boot/dts/mediatek/Makefile
index c99c3372a4b5..822d3e36d3df 100644
--- a/arch/arm64/boot/dts/mediatek/Makefile
+++ b/arch/arm64/boot/dts/mediatek/Makefile
@@ -13,6 +13,7 @@ dtb-$(CONFIG_ARCH_MEDIATEK) += mt7986a-bananapi-bpi-r3-emmc.dtbo
 dtb-$(CONFIG_ARCH_MEDIATEK) += mt7986a-bananapi-bpi-r3-nand.dtbo
 dtb-$(CONFIG_ARCH_MEDIATEK) += mt7986a-bananapi-bpi-r3-nor.dtbo
 dtb-$(CONFIG_ARCH_MEDIATEK) += mt7986a-bananapi-bpi-r3-sd.dtbo
+dtb-$(CONFIG_ARCH_MEDIATEK) += mt7986a-bananapi-bpi-r3-sata.dtbo
 dtb-$(CONFIG_ARCH_MEDIATEK) += mt7986a-rfb.dtb
 dtb-$(CONFIG_ARCH_MEDIATEK) += mt7986b-rfb.dtb
 dtb-$(CONFIG_ARCH_MEDIATEK) += mt8167-pumpkin.dtb
diff --git a/arch/arm64/boot/dts/mediatek/mt7986a-bananapi-bpi-r3-sata.dtso b/arch/arm64/boot/dts/mediatek/mt7986a-bananapi-bpi-r3-sata.dtso
new file mode 100644
index 000000000000..6ab06813412a
--- /dev/null
+++ b/arch/arm64/boot/dts/mediatek/mt7986a-bananapi-bpi-r3-sata.dtso
@@ -0,0 +1,39 @@
+// SPDX-License-Identifier: (GPL-2.0 OR MIT)
+/*
+ * Copyright (C) 2021 MediaTek Inc.
+ * Author: Frank Wunderlich <frank-w@...lic-files.de>
+ */
+
+/dts-v1/;
+/plugin/;
+
+#include <dt-bindings/gpio/gpio.h>
+
+/ {
+	compatible = "bananapi,bpi-r3", "mediatek,mt7986a";
+
+	fragment@0 {
+		target-path = "/";
+		__overlay__ {
+			reg_sata12v: regulator-sata12v {
+				compatible = "regulator-fixed";
+				regulator-name = "sata12v";
+				regulator-min-microvolt = <12000000>;
+				regulator-max-microvolt = <12000000>;
+				gpio = <&pio 8 GPIO_ACTIVE_HIGH>;
+				enable-active-high;
+				regulator-always-on;
+			};
+
+			reg_sata5v: regulator-sata5v {
+				compatible = "regulator-fixed";
+				regulator-name = "sata5v";
+				regulator-min-microvolt = <5000000>;
+				regulator-max-microvolt = <5000000>;
+				regulator-always-on;
+				vin-supply = <&reg_sata12v>;
+			};
+		};
+	};
+};
+
-- 
2.34.1