linux-kernel - [PATCH v2 2/2] riscv: dts: sophgo: Add i2c device support for sg2042

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Message-ID:
 <IA1PR20MB49530E59974AF0FCA4FAB6DBBBB72@IA1PR20MB4953.namprd20.prod.outlook.com>
Date: Mon, 29 Jul 2024 10:13:34 +0800
From: Inochi Amaoto <inochiama@...look.com>
To: Rob Herring <robh@...nel.org>,
	Krzysztof Kozlowski <krzk+dt@...nel.org>,
	Conor Dooley <conor+dt@...nel.org>,
	Paul Walmsley <paul.walmsley@...ive.com>,
	Palmer Dabbelt <palmer@...belt.com>,
	Albert Ou <aou@...s.berkeley.edu>,
	Chen Wang <unicorn_wang@...look.com>,
	Inochi Amaoto <inochiama@...look.com>,
	Guo Ren <guoren@...nel.org>,
	Arnd Bergmann <arnd@...db.de>,
	Chao Wei <chao.wei@...hgo.com>
Cc: devicetree@...r.kernel.org,
	linux-riscv@...ts.infradead.org,
	linux-kernel@...r.kernel.org
Subject: [PATCH v2 2/2] riscv: dts: sophgo: Add i2c device support for sg2042

The i2c ip of sg2042 is a standard Synopsys i2c ip, which is already
supported by the mainline kernel.

Add i2c device node for sg2042.

Signed-off-by: Inochi Amaoto <inochiama@...look.com>
---
 arch/riscv/boot/dts/sophgo/sg2042.dtsi | 52 ++++++++++++++++++++++++++
 1 file changed, 52 insertions(+)

diff --git a/arch/riscv/boot/dts/sophgo/sg2042.dtsi b/arch/riscv/boot/dts/sophgo/sg2042.dtsi
index c61d8061119d..eebd6817520e 100644
--- a/arch/riscv/boot/dts/sophgo/sg2042.dtsi
+++ b/arch/riscv/boot/dts/sophgo/sg2042.dtsi
@@ -47,6 +47,58 @@ soc: soc {
 		interrupt-parent = <&intc>;
 		ranges;

+		i2c0: i2c@...0005000 {
+			compatible = "snps,designware-i2c";
+			reg = <0x70 0x30005000 0x0 0x1000>;
+			#address-cells = <1>;
+			#size-cells = <0>;
+			clocks = <&clkgen GATE_CLK_APB_I2C>;
+			clock-names = "ref";
+			clock-frequency = <100000>;
+			interrupts = <101 IRQ_TYPE_LEVEL_HIGH>;
+			resets = <&rstgen RST_I2C0>;
+			status = "disabled";
+		};
+
+		i2c1: i2c@...0006000 {
+			compatible = "snps,designware-i2c";
+			reg = <0x70 0x30006000 0x0 0x1000>;
+			#address-cells = <1>;
+			#size-cells = <0>;
+			clocks = <&clkgen GATE_CLK_APB_I2C>;
+			clock-names = "ref";
+			clock-frequency = <100000>;
+			interrupts = <102 IRQ_TYPE_LEVEL_HIGH>;
+			resets = <&rstgen RST_I2C1>;
+			status = "disabled";
+		};
+
+		i2c2: i2c@...0007000 {
+			compatible = "snps,designware-i2c";
+			reg = <0x70 0x30007000 0x0 0x1000>;
+			#address-cells = <1>;
+			#size-cells = <0>;
+			clocks = <&clkgen GATE_CLK_APB_I2C>;
+			clock-names = "ref";
+			clock-frequency = <100000>;
+			interrupts = <103 IRQ_TYPE_LEVEL_HIGH>;
+			resets = <&rstgen RST_I2C2>;
+			status = "disabled";
+		};
+
+		i2c3: i2c@...0008000 {
+			compatible = "snps,designware-i2c";
+			reg = <0x70 0x30008000 0x0 0x1000>;
+			#address-cells = <1>;
+			#size-cells = <0>;
+			clocks = <&clkgen GATE_CLK_APB_I2C>;
+			clock-names = "ref";
+			clock-frequency = <100000>;
+			interrupts = <104 IRQ_TYPE_LEVEL_HIGH>;
+			resets = <&rstgen RST_I2C3>;
+			status = "disabled";
+		};
+
 		pllclk: clock-controller@...00100c0 {
 			compatible = "sophgo,sg2042-pll";
 			reg = <0x70 0x300100c0 0x0 0x40>;
--
2.45.2