[PATCH 6/6] arm64: tegra: Add simple framebuffer on Jetson Xavier NX

[Thierry Reding]

From: Thierry Reding <treding at nvidia.com>

Add the framebuffer carveout reserved memory node as well as a simple-
framebuffer node that is used to bind to the framebuffer that the
bootloader has set up.

Signed-off-by: Thierry Reding <treding at nvidia.com>
---
 .../nvidia/tegra194-p3509-0000+p3668-0001.dts | 32 +++++++++++++++++++
 arch/arm64/boot/dts/nvidia/tegra194.dtsi      |  2 +-
 2 files changed, 33 insertions(+), 1 deletion(-)

diff --git a/arch/arm64/boot/dts/nvidia/tegra194-p3509-0000+p3668-0001.dts b/arch/arm64/boot/dts/nvidia/tegra194-p3509-0000+p3668-0001.dts
index 238fd98e8e45..163950321c38 100644
--- a/arch/arm64/boot/dts/nvidia/tegra194-p3509-0000+p3668-0001.dts
+++ b/arch/arm64/boot/dts/nvidia/tegra194-p3509-0000+p3668-0001.dts
@@ -7,4 +7,36 @@
 / {
 	model = "NVIDIA Jetson Xavier NX Developer Kit (eMMC)";
 	compatible = "nvidia,p3509-0000+p3668-0001", "nvidia,tegra194";
+
+	chosen {
+		framebuffer {
+			compatible = "simple-framebuffer";
+			memory-region = <&fb>;
+			power-domains = <&bpmp TEGRA194_POWER_DOMAIN_DISP>;
+			clocks = <&bpmp TEGRA194_CLK_SOR1_REF>,
+				 <&bpmp TEGRA194_CLK_SOR1_OUT>,
+				 <&bpmp TEGRA194_CLK_SOR1_PAD_CLKOUT>,
+				 <&bpmp TEGRA194_CLK_PLLD2>,
+				 <&bpmp TEGRA194_CLK_PLLDP>,
+				 <&bpmp TEGRA194_CLK_NVDISPLAY_DISP>,
+				 <&bpmp TEGRA194_CLK_NVDISPLAYHUB>,
+				 <&bpmp TEGRA194_CLK_NVDISPLAY_P0>;
+			width = <1920>;
+			height = <1080>;
+			stride = <7680>;
+			format = "a8b8g8r8";
+		};
+	};
+
+	reserved-memory {
+		#address-cells = <2>;
+		#size-cells = <2>;
+		ranges;
+
+		fb: framebuffer at 2,573a0000 {
+			compatible = "framebuffer";
+			reg = <0x2 0x573a0000 0x0 0x007e9000>;
+			iommu-addresses = <&dc0 0x2 0x573a0000 0x0 0x007e9000>;
+		};
+	};
 };
diff --git a/arch/arm64/boot/dts/nvidia/tegra194.dtsi b/arch/arm64/boot/dts/nvidia/tegra194.dtsi
index 3e6ac20ace3d..5c5343cf8dc9 100644
--- a/arch/arm64/boot/dts/nvidia/tegra194.dtsi
+++ b/arch/arm64/boot/dts/nvidia/tegra194.dtsi
@@ -1929,7 +1929,7 @@ display-hub at 15200000 {
 
 				ranges = <0x15200000 0x15200000 0x40000>;
 
-				display at 15200000 {
+				dc0: display at 15200000 {
 					compatible = "nvidia,tegra194-dc";
 					reg = <0x15200000 0x10000>;
 					interrupts = <GIC_SPI 153 IRQ_TYPE_LEVEL_HIGH>;
-- 
2.37.2