linux-kernel - [PATCH v3 17/22] arm64: dts: mediatek: mt7988a-bpi-r4: Enable I2C controllers

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Message-ID: <20241217091238.16032-18-linux@fw-web.de>
Date: Tue, 17 Dec 2024 10:12:31 +0100
From: Frank Wunderlich <linux@...web.de>
To: Rob Herring <robh@...nel.org>,
	Krzysztof Kozlowski <krzk+dt@...nel.org>,
	Conor Dooley <conor+dt@...nel.org>,
	Matthias Brugger <matthias.bgg@...il.com>,
	AngeloGioacchino Del Regno <angelogioacchino.delregno@...labora.com>
Cc: Frank Wunderlich <frank-w@...lic-files.de>,
	devicetree@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	linux-arm-kernel@...ts.infradead.org,
	linux-mediatek@...ts.infradead.org
Subject: [PATCH v3 17/22] arm64: dts: mediatek: mt7988a-bpi-r4: Enable I2C controllers

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

Enable the I2C0, I2C2 controllers found on the BananaPi R4 board.
Both controllers are not accessible from user and having fixed spare
devices. I2C0 have a pmic connected, I2C2 is used with I2C-multiplexer
for e.g. SFP cages.
The missing I2C1 is connected to GPIO header which can have either GPIO
mode or I2C mode.

Signed-off-by: Frank Wunderlich <frank-w@...lic-files.de>
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@...labora.com>
---
 .../boot/dts/mediatek/mt7988a-bananapi-bpi-r4.dts    | 12 ++++++++++++
 arch/arm64/boot/dts/mediatek/mt7988a.dtsi            |  6 +++---
 2 files changed, 15 insertions(+), 3 deletions(-)

diff --git a/arch/arm64/boot/dts/mediatek/mt7988a-bananapi-bpi-r4.dts b/arch/arm64/boot/dts/mediatek/mt7988a-bananapi-bpi-r4.dts
index 46117df7d44c..3d165f7b29dc 100644
--- a/arch/arm64/boot/dts/mediatek/mt7988a-bananapi-bpi-r4.dts
+++ b/arch/arm64/boot/dts/mediatek/mt7988a-bananapi-bpi-r4.dts
@@ -60,6 +60,18 @@ cpu_trip_active_low: active-low {
 	};
 };
 
+&i2c0 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&i2c0_pins>;
+	status = "okay";
+};
+
+&i2c2 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&i2c2_1_pins>;
+	status = "okay";
+};
+
 &pio {
 	mdio0_pins: mdio0-pins {
 		mux {
diff --git a/arch/arm64/boot/dts/mediatek/mt7988a.dtsi b/arch/arm64/boot/dts/mediatek/mt7988a.dtsi
index 59a1ffc2edfc..c0a49f68834a 100644
--- a/arch/arm64/boot/dts/mediatek/mt7988a.dtsi
+++ b/arch/arm64/boot/dts/mediatek/mt7988a.dtsi
@@ -269,7 +269,7 @@ serial@...00200 {
 			status = "disabled";
 		};
 
-		i2c@...03000 {
+		i2c0: i2c@...03000 {
 			compatible = "mediatek,mt7981-i2c";
 			reg = <0 0x11003000 0 0x1000>,
 			      <0 0x10217080 0 0x80>;
@@ -283,7 +283,7 @@ i2c@...03000 {
 			status = "disabled";
 		};
 
-		i2c@...04000 {
+		i2c1: i2c@...04000 {
 			compatible = "mediatek,mt7981-i2c";
 			reg = <0 0x11004000 0 0x1000>,
 			      <0 0x10217100 0 0x80>;
@@ -297,7 +297,7 @@ i2c@...04000 {
 			status = "disabled";
 		};
 
-		i2c@...05000 {
+		i2c2: i2c@...05000 {
 			compatible = "mediatek,mt7981-i2c";
 			reg = <0 0x11005000 0 0x1000>,
 			      <0 0x10217180 0 0x80>;
-- 
2.43.0