linux-kernel - [PATCH 3/4] arm64: dts: ls1012a: add gpio for i2c bus recovery

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Date: Fri, 19 Jan 2024 15:10:34 -0500
From: Frank Li <Frank.Li@....com>
To: Shawn Guo <shawnguo@...nel.org>,
	Li Yang <leoyang.li@....com>,
	Rob Herring <robh+dt@...nel.org>,
	Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
	Conor Dooley <conor+dt@...nel.org>,
	linux-arm-kernel@...ts.infradead.org (moderated list:ARM/FREESCALE LAYERSCAPE ARM ARCHITECTURE),
	devicetree@...r.kernel.org (open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS),
	linux-kernel@...r.kernel.org (open list)
Cc: imx@...ts.linux.dev
Subject: [PATCH 3/4] arm64: dts: ls1012a: add gpio for i2c bus recovery

From: Li Yang <leoyang.li@....com>

Add compatible string fsl,ls1012a-i2c and scl-gpios to support i2c bus
recovery when I2C bus lock by i2c devices.

[Leo: updated scl-gpios to match RM ]
Signed-off-by: Li Yang <leoyang.li@....com>
Signed-off-by: Frank Li <Frank.Li@....com>
---
 arch/arm64/boot/dts/freescale/fsl-ls1012a.dtsi | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/arch/arm64/boot/dts/freescale/fsl-ls1012a.dtsi b/arch/arm64/boot/dts/freescale/fsl-ls1012a.dtsi
index 5a6d4848fe485..116fa68e13ac4 100644
--- a/arch/arm64/boot/dts/freescale/fsl-ls1012a.dtsi
+++ b/arch/arm64/boot/dts/freescale/fsl-ls1012a.dtsi
@@ -351,24 +351,26 @@ tmu: tmu@...0000 {
 		};
 
 		i2c0: i2c@...0000 {
-			compatible = "fsl,vf610-i2c";
+			compatible = "fsl,ls1012a-i2c", "fsl,vf610-i2c";
 			#address-cells = <1>;
 			#size-cells = <0>;
 			reg = <0x0 0x2180000 0x0 0x10000>;
 			interrupts = <0 56 IRQ_TYPE_LEVEL_HIGH>;
 			clocks = <&clockgen QORIQ_CLK_PLATFORM_PLL
 					    QORIQ_CLK_PLL_DIV(4)>;
+			scl-gpios = <&gpio0 2 0>;
 			status = "disabled";
 		};
 
 		i2c1: i2c@...0000 {
-			compatible = "fsl,vf610-i2c";
+			compatible = "fsl,ls1012a-i2c", "fsl,vf610-i2c";
 			#address-cells = <1>;
 			#size-cells = <0>;
 			reg = <0x0 0x2190000 0x0 0x10000>;
 			interrupts = <0 57 IRQ_TYPE_LEVEL_HIGH>;
 			clocks = <&clockgen QORIQ_CLK_PLATFORM_PLL
 					    QORIQ_CLK_PLL_DIV(4)>;
+			scl-gpios = <&gpio0 13 0>;
 			status = "disabled";
 		};
 
-- 
2.34.1