arm64: tegra: Add GPCDMA support for Tegra I2C

Add dma properties to support GPCDMA for I2C in Tegra 186 and later
chips

Signed-off-by: Akhil R <akhilrajeev@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>

3 files changed, 96 insertions, 0 deletions

diff --git a/arch/arm64/boot/dts/nvidia/tegra186.dtsi b/arch/arm64/boot/dts/nvidia/tegra186.dtsi
index 526272f76637..6602fe421ee8 100644
--- a/arch/arm64/boot/dts/nvidia/tegra186.dtsi
+++ b/arch/arm64/boot/dts/nvidia/tegra186.dtsi
@@ -672,6 +672,10 @@
 		clock-names = "div-clk";
 		resets = <&bpmp TEGRA186_RESET_I2C1>;
 		reset-names = "i2c";
+		iommus = <&smmu TEGRA186_SID_GPCDMA_0>;
+		dma-coherent;
+		dmas = <&gpcdma 21>, <&gpcdma 21>;
+		dma-names = "rx", "tx";
 		status = "disabled";
 	};
 
@@ -685,6 +689,10 @@
 		clock-names = "div-clk";
 		resets = <&bpmp TEGRA186_RESET_I2C3>;
 		reset-names = "i2c";
+		iommus = <&smmu TEGRA186_SID_GPCDMA_0>;
+		dma-coherent;
+		dmas = <&gpcdma 23>, <&gpcdma 23>;
+		dma-names = "rx", "tx";
 		status = "disabled";
 	};
 
@@ -702,6 +710,10 @@
 		pinctrl-names = "default", "idle";
 		pinctrl-0 = <&state_dpaux1_i2c>;
 		pinctrl-1 = <&state_dpaux1_off>;
+		iommus = <&smmu TEGRA186_SID_GPCDMA_0>;
+		dma-coherent;
+		dmas = <&gpcdma 26>, <&gpcdma 26>;
+		dma-names = "rx", "tx";
 		status = "disabled";
 	};
 
@@ -733,6 +745,10 @@
 		pinctrl-names = "default", "idle";
 		pinctrl-0 = <&state_dpaux_i2c>;
 		pinctrl-1 = <&state_dpaux_off>;
+		iommus = <&smmu TEGRA186_SID_GPCDMA_0>;
+		dma-coherent;
+		dmas = <&gpcdma 30>, <&gpcdma 30>;
+		dma-names = "rx", "tx";
 		status = "disabled";
 	};
 
@@ -746,6 +762,10 @@
 		clock-names = "div-clk";
 		resets = <&bpmp TEGRA186_RESET_I2C7>;
 		reset-names = "i2c";
+		iommus = <&smmu TEGRA186_SID_GPCDMA_0>;
+		dma-coherent;
+		dmas = <&gpcdma 27>, <&gpcdma 27>;
+		dma-names = "rx", "tx";
 		status = "disabled";
 	};
 
@@ -759,6 +779,10 @@
 		clock-names = "div-clk";
 		resets = <&bpmp TEGRA186_RESET_I2C9>;
 		reset-names = "i2c";
+		iommus = <&smmu TEGRA186_SID_GPCDMA_0>;
+		dma-coherent;
+		dmas = <&gpcdma 31>, <&gpcdma 31>;
+		dma-names = "rx", "tx";
 		status = "disabled";
 	};
 
@@ -1176,6 +1200,10 @@
 		clock-names = "div-clk";
 		resets = <&bpmp TEGRA186_RESET_I2C2>;
 		reset-names = "i2c";
+		iommus = <&smmu TEGRA186_SID_GPCDMA_0>;
+		dma-coherent;
+		dmas = <&gpcdma 22>, <&gpcdma 22>;
+		dma-names = "rx", "tx";
 		status = "disabled";
 	};
 
@@ -1189,6 +1217,10 @@
 		clock-names = "div-clk";
 		resets = <&bpmp TEGRA186_RESET_I2C8>;
 		reset-names = "i2c";
+		iommus = <&smmu TEGRA186_SID_GPCDMA_0>;
+		dma-coherent;
+		dmas = <&gpcdma 0>, <&gpcdma 0>;
+		dma-names = "rx", "tx";
 		status = "disabled";
 	};
 
diff --git a/arch/arm64/boot/dts/nvidia/tegra194.dtsi b/arch/arm64/boot/dts/nvidia/tegra194.dtsi
index ed2fd951122b..41f3a7e188d0 100644
--- a/arch/arm64/boot/dts/nvidia/tegra194.dtsi
+++ b/arch/arm64/boot/dts/nvidia/tegra194.dtsi
@@ -805,6 +805,10 @@
 			clock-names = "div-clk";
 			resets = <&bpmp TEGRA194_RESET_I2C1>;
 			reset-names = "i2c";
+			iommus = <&smmu TEGRA194_SID_GPCDMA_0>;
+			dma-coherent;
+			dmas = <&gpcdma 21>, <&gpcdma 21>;
+			dma-names = "rx", "tx";
 			status = "disabled";
 		};
 
@@ -830,6 +834,10 @@
 			clock-names = "div-clk";
 			resets = <&bpmp TEGRA194_RESET_I2C3>;
 			reset-names = "i2c";
+			iommus = <&smmu TEGRA194_SID_GPCDMA_0>;
+			dma-coherent;
+			dmas = <&gpcdma 23>, <&gpcdma 23>;
+			dma-names = "rx", "tx";
 			status = "disabled";
 		};
 
@@ -847,6 +855,10 @@
 			pinctrl-0 = <&state_dpaux1_i2c>;
 			pinctrl-1 = <&state_dpaux1_off>;
 			pinctrl-names = "default", "idle";
+			iommus = <&smmu TEGRA194_SID_GPCDMA_0>;
+			dma-coherent;
+			dmas = <&gpcdma 26>, <&gpcdma 26>;
+			dma-names = "rx", "tx";
 			status = "disabled";
 		};
 
@@ -864,6 +876,10 @@
 			pinctrl-0 = <&state_dpaux0_i2c>;
 			pinctrl-1 = <&state_dpaux0_off>;
 			pinctrl-names = "default", "idle";
+			iommus = <&smmu TEGRA194_SID_GPCDMA_0>;
+			dma-coherent;
+			dmas = <&gpcdma 30>, <&gpcdma 30>;
+			dma-names = "rx", "tx";
 			status = "disabled";
 		};
 
@@ -881,6 +897,10 @@
 			pinctrl-0 = <&state_dpaux2_i2c>;
 			pinctrl-1 = <&state_dpaux2_off>;
 			pinctrl-names = "default", "idle";
+			iommus = <&smmu TEGRA194_SID_GPCDMA_0>;
+			dma-coherent;
+			dmas = <&gpcdma 27>, <&gpcdma 27>;
+			dma-names = "rx", "tx";
 			status = "disabled";
 		};
 
@@ -898,6 +918,10 @@
 			pinctrl-0 = <&state_dpaux3_i2c>;
 			pinctrl-1 = <&state_dpaux3_off>;
 			pinctrl-names = "default", "idle";
+			iommus = <&smmu TEGRA194_SID_GPCDMA_0>;
+			dma-coherent;
+			dmas = <&gpcdma 31>, <&gpcdma 31>;
+			dma-names = "rx", "tx";
 			status = "disabled";
 		};
 
@@ -1565,6 +1589,10 @@
 			clock-names = "div-clk";
 			resets = <&bpmp TEGRA194_RESET_I2C2>;
 			reset-names = "i2c";
+			iommus = <&smmu TEGRA194_SID_GPCDMA_0>;
+			dma-coherent;
+			dmas = <&gpcdma 22>, <&gpcdma 22>;
+			dma-names = "rx", "tx";
 			status = "disabled";
 		};
 
@@ -1578,6 +1606,10 @@
 			clock-names = "div-clk";
 			resets = <&bpmp TEGRA194_RESET_I2C8>;
 			reset-names = "i2c";
+			iommus = <&smmu TEGRA194_SID_GPCDMA_0>;
+			dma-coherent;
+			dmas = <&gpcdma 0>, <&gpcdma 0>;
+			dma-names = "rx", "tx";
 			status = "disabled";
 		};
 
diff --git a/arch/arm64/boot/dts/nvidia/tegra234.dtsi b/arch/arm64/boot/dts/nvidia/tegra234.dtsi
index 82903c95f5dd..0170bfa8a467 100644
--- a/arch/arm64/boot/dts/nvidia/tegra234.dtsi
+++ b/arch/arm64/boot/dts/nvidia/tegra234.dtsi
@@ -754,6 +754,10 @@
 			clock-names = "div-clk", "parent";
 			resets = <&bpmp TEGRA234_RESET_I2C1>;
 			reset-names = "i2c";
+			iommus = <&smmu_niso0 TEGRA234_SID_GPCDMA>;
+			dma-coherent;
+			dmas = <&gpcdma 21>, <&gpcdma 21>;
+			dma-names = "rx", "tx";
 		};
 
 		cam_i2c: i2c@3180000 {
@@ -769,6 +773,10 @@
 			clock-names = "div-clk", "parent";
 			resets = <&bpmp TEGRA234_RESET_I2C3>;
 			reset-names = "i2c";
+			iommus = <&smmu_niso0 TEGRA234_SID_GPCDMA>;
+			dma-coherent;
+			dmas = <&gpcdma 23>, <&gpcdma 23>;
+			dma-names = "rx", "tx";
 		};
 
 		dp_aux_ch1_i2c: i2c@3190000 {
@@ -784,6 +792,10 @@
 			clock-names = "div-clk", "parent";
 			resets = <&bpmp TEGRA234_RESET_I2C4>;
 			reset-names = "i2c";
+			iommus = <&smmu_niso0 TEGRA234_SID_GPCDMA>;
+			dma-coherent;
+			dmas = <&gpcdma 26>, <&gpcdma 26>;
+			dma-names = "rx", "tx";
 		};
 
 		dp_aux_ch0_i2c: i2c@31b0000 {
@@ -799,6 +811,10 @@
 			clock-names = "div-clk", "parent";
 			resets = <&bpmp TEGRA234_RESET_I2C6>;
 			reset-names = "i2c";
+			iommus = <&smmu_niso0 TEGRA234_SID_GPCDMA>;
+			dma-coherent;
+			dmas = <&gpcdma 30>, <&gpcdma 30>;
+			dma-names = "rx", "tx";
 		};
 
 		dp_aux_ch2_i2c: i2c@31c0000 {
@@ -814,6 +830,10 @@
 			clock-names = "div-clk", "parent";
 			resets = <&bpmp TEGRA234_RESET_I2C7>;
 			reset-names = "i2c";
+			iommus = <&smmu_niso0 TEGRA234_SID_GPCDMA>;
+			dma-coherent;
+			dmas = <&gpcdma 27>, <&gpcdma 27>;
+			dma-names = "rx", "tx";
 		};
 
 		dp_aux_ch3_i2c: i2c@31e0000 {
@@ -829,6 +849,10 @@
 			clock-names = "div-clk", "parent";
 			resets = <&bpmp TEGRA234_RESET_I2C9>;
 			reset-names = "i2c";
+			iommus = <&smmu_niso0 TEGRA234_SID_GPCDMA>;
+			dma-coherent;
+			dmas = <&gpcdma 31>, <&gpcdma 31>;
+			dma-names = "rx", "tx";
 		};
 
 		spi@3270000 {
@@ -1455,6 +1479,10 @@
 			assigned-clock-parents = <&bpmp TEGRA234_CLK_PLLP_OUT0>;
 			resets = <&bpmp TEGRA234_RESET_I2C2>;
 			reset-names = "i2c";
+			iommus = <&smmu_niso0 TEGRA234_SID_GPCDMA>;
+			dma-coherent;
+			dmas = <&gpcdma 22>, <&gpcdma 22>;
+			dma-names = "rx", "tx";
 		};
 
 		gen8_i2c: i2c@c250000 {
@@ -1471,6 +1499,10 @@
 			assigned-clock-parents = <&bpmp TEGRA234_CLK_PLLP_OUT0>;
 			resets = <&bpmp TEGRA234_RESET_I2C8>;
 			reset-names = "i2c";
+			iommus = <&smmu_niso0 TEGRA234_SID_GPCDMA>;
+			dma-coherent;
+			dmas = <&gpcdma 0>, <&gpcdma 0>;
+			dma-names = "rx", "tx";
 		};
 
 		rtc@c2a0000 {