From: Thierry Reding <[email protected]> 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 <[email protected]> --- Changes in v2: - clear out dynamic fields and leave it up to firmware to fill them in - mark simple-framebuffer node as disabled by default .../nvidia/tegra194-p3509-0000+p3668-0001.dts | 43 +++++++++++++++++++ arch/arm64/boot/dts/nvidia/tegra194.dtsi | 2 +- 2 files changed, 44 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..85b4aaa2ad4e 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 +7,47 @@ / { model = "NVIDIA Jetson Xavier NX Developer Kit (eMMC)"; compatible = "nvidia,p3509-0000+p3668-0001", "nvidia,tegra194"; + + chosen { + framebuffer { + compatible = "simple-framebuffer"; + status = "disabled"; + 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 = <0>; + height = <0>; + stride = <0>; + format = "x8b8g8r8"; + }; + }; + + reserved-memory { + #address-cells = <2>; + #size-cells = <2>; + ranges; + + fb: framebuffer@0,0 { + compatible = "framebuffer"; + reg = <0x0 0x0 0x0 0x0>; + iommu-addresses = <&dc0 0x0 0x0 0x0 0x0>; + }; + }; + + bus@0 { + host1x@13e00000 { + display-hub@15200000 { + display@15200000 { + memory-region = <&fb>; + }; + }; + }; + }; }; diff --git a/arch/arm64/boot/dts/nvidia/tegra194.dtsi b/arch/arm64/boot/dts/nvidia/tegra194.dtsi index d0dbfafbc930..ec318b9e700c 100644 --- a/arch/arm64/boot/dts/nvidia/tegra194.dtsi +++ b/arch/arm64/boot/dts/nvidia/tegra194.dtsi @@ -1972,7 +1972,7 @@ display-hub@15200000 { ranges = <0x15200000 0x15200000 0x40000>; - display@15200000 { + dc0: display@15200000 { compatible = "nvidia,tegra194-dc"; reg = <0x15200000 0x10000>; interrupts = <GIC_SPI 153 IRQ_TYPE_LEVEL_HIGH>; -- 2.38.1
