linux-kernel - [PATCH v3] arm64: dts: exynos: Add SPI nodes for Exynos850

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Message-Id: <20240201183025.14566-1-semen.protsenko@linaro.org>
Date: Thu,  1 Feb 2024 12:30:25 -0600
From: Sam Protsenko <semen.protsenko@...aro.org>
To: Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>
Cc: Rob Herring <robh+dt@...nel.org>,
	devicetree@...r.kernel.org,
	linux-arm-kernel@...ts.infradead.org,
	linux-samsung-soc@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: [PATCH v3] arm64: dts: exynos: Add SPI nodes for Exynos850

Some USI blocks can be configured as SPI controllers. Add corresponding
SPI nodes to Exynos850 SoC device tree.

Signed-off-by: Sam Protsenko <semen.protsenko@...aro.org>
Reviewed-by: Tudor Ambarus <tudor.ambarus@...aro.org>
Link: https://lore.kernel.org/r/20240125013858.3986-4-semen.protsenko@linaro.org
[krzysztof: order properties according to DTS coding style]
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
---
Changes in v3:
  - Fix dtschema warnings by specifying "spi" as a first clock

Changes in v2:
  - Sorted pinctrl properties properly

 arch/arm64/boot/dts/exynos/exynos850.dtsi | 54 +++++++++++++++++++++++
 1 file changed, 54 insertions(+)

diff --git a/arch/arm64/boot/dts/exynos/exynos850.dtsi b/arch/arm64/boot/dts/exynos/exynos850.dtsi
index e7e1171a3864..2ba67c3d0681 100644
--- a/arch/arm64/boot/dts/exynos/exynos850.dtsi
+++ b/arch/arm64/boot/dts/exynos/exynos850.dtsi
@@ -738,6 +738,24 @@ usi_spi_0: usi@...400c0 {
 				 <&cmu_peri CLK_GOUT_SPI0_IPCLK>;
 			clock-names = "pclk", "ipclk";
 			status = "disabled";
+
+			spi_0: spi@...40000 {
+				compatible = "samsung,exynos850-spi";
+				reg = <0x13940000 0x30>;
+				clocks = <&cmu_peri CLK_GOUT_SPI0_PCLK>,
+					 <&cmu_peri CLK_GOUT_SPI0_IPCLK>;
+				clock-names = "spi", "spi_busclk0";
+				dmas = <&pdma0 5>, <&pdma0 4>;
+				dma-names = "tx", "rx";
+				interrupts = <GIC_SPI 221 IRQ_TYPE_LEVEL_HIGH>;
+				pinctrl-0 = <&spi0_pins>;
+				pinctrl-names = "default";
+				num-cs = <1>;
+				samsung,spi-src-clk = <0>;
+				#address-cells = <1>;
+				#size-cells = <0>;
+				status = "disabled";
+			};
 		};
 
 		usi_cmgp0: usi@...000c0 {
@@ -779,6 +797,24 @@ serial_1: serial@...00000 {
 				clock-names = "uart", "clk_uart_baud0";
 				status = "disabled";
 			};
+
+			spi_1: spi@...00000 {
+				compatible = "samsung,exynos850-spi";
+				reg = <0x11d00000 0x30>;
+				clocks = <&cmu_cmgp CLK_GOUT_CMGP_USI0_PCLK>,
+					 <&cmu_cmgp CLK_GOUT_CMGP_USI0_IPCLK>;
+				clock-names = "spi", "spi_busclk0";
+				dmas = <&pdma0 12>, <&pdma0 13>;
+				dma-names = "tx", "rx";
+				interrupts = <GIC_SPI 62 IRQ_TYPE_LEVEL_HIGH>;
+				pinctrl-0 = <&spi1_pins>;
+				pinctrl-names = "default";
+				num-cs = <1>;
+				samsung,spi-src-clk = <0>;
+				#address-cells = <1>;
+				#size-cells = <0>;
+				status = "disabled";
+			};
 		};
 
 		usi_cmgp1: usi@...200c0 {
@@ -820,6 +856,24 @@ serial_2: serial@...20000 {
 				clock-names = "uart", "clk_uart_baud0";
 				status = "disabled";
 			};
+
+			spi_2: spi@...20000 {
+				compatible = "samsung,exynos850-spi";
+				reg = <0x11d20000 0x30>;
+				clocks = <&cmu_cmgp CLK_GOUT_CMGP_USI1_PCLK>,
+					 <&cmu_cmgp CLK_GOUT_CMGP_USI1_IPCLK>;
+				clock-names = "spi", "spi_busclk0";
+				dmas = <&pdma0 14>, <&pdma0 15>;
+				dma-names = "tx", "rx";
+				interrupts = <GIC_SPI 63 IRQ_TYPE_LEVEL_HIGH>;
+				pinctrl-0 = <&spi2_pins>;
+				pinctrl-names = "default";
+				num-cs = <1>;
+				samsung,spi-src-clk = <0>;
+				#address-cells = <1>;
+				#size-cells = <0>;
+				status = "disabled";
+			};
 		};
 	};
 };
-- 
2.39.2