@@ -235,6 +235,11 @@ properties:
- items:
- const: mediatek,mt8195-disp-pseudo-ovl
+ # ETHDR: see Documentation/devicetree/bindings/display/mediatek/mediatek,ethdr.yaml
+ # for details.
+ - items:
+ - const: mediatek,mt8195-disp-ethdr
+
reg:
description: Physical base address and length of the function block register space.
new file mode 100644
@@ -0,0 +1,137 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/display/mediatek/mediatek,ethdr.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: mediatek ethdr Device Tree Bindings
+
+maintainers:
+ - CK Hu <ck.hu@mediatek.com>
+ - Nancy.Lin <nancy.lin@mediatek.com>
+
+description: |
+ ETHDR is designed for HDR video and graphics conversion in the external display path.
+ It handles multiple HDR input types and performs tone mapping, color space/color
+ format conversion, and then combine different layers, output the required HDR or
+ SDR signal to the subsequent display path. This engine is composed of two video
+ frontends, two graphic frontends, one video backend and a mixer.
+
+properties:
+ compatible:
+ items:
+ - const: mediatek,mt8195-disp-ethdr
+ reg:
+ maxItems: 7
+ reg-names:
+ items:
+ - const: mixer
+ - const: vdo_fe0
+ - const: vdo_fe1
+ - const: gfx_fe0
+ - const: gfx_fe1
+ - const: vdo_be
+ - const: adl_ds
+ interrupts:
+ minItems: 1
+ iommus:
+ description: The compatible property is DMA function blocks.
+ Should point to the respective IOMMU block with master port as argument,
+ see Documentation/devicetree/bindings/iommu/mediatek,iommu.yaml for
+ details.
+ minItems: 1
+ maxItems: 2
+ clocks:
+ items:
+ - description: mixer clock
+ - description: video frontend 0 clock
+ - description: video frontend 1 clock
+ - description: graphic frontend 0 clock
+ - description: graphic frontend 1 clock
+ - description: video backend clock
+ - description: autodownload and menuload clock
+ - description: video frontend 0 async clock
+ - description: video frontend 1 async clock
+ - description: graphic frontend 0 async clock
+ - description: graphic frontend 1 async clock
+ - description: video backend async clock
+ - description: ethdr top clock
+ clock-names:
+ items:
+ - const: mixer
+ - const: vdo_fe0
+ - const: vdo_fe1
+ - const: gfx_fe0
+ - const: gfx_fe1
+ - const: vdo_be
+ - const: adl_ds
+ - const: vdo_fe0_async
+ - const: vdo_fe1_async
+ - const: gfx_fe0_async
+ - const: gfx_fe1_async
+ - const: vdo_be_async
+ - const: ethdr_top
+ power-domains:
+ maxItems: 1
+ mediatek,gce-client-reg:
+ $ref: /schemas/types.yaml#/definitions/phandle-array
+ description: The register of display function block to be set by gce.
+ There are 4 arguments in this property, gce node, subsys id, offset and
+ register size. The subsys id is defined in the gce header of each chips
+ include/include/dt-bindings/gce/<chip>-gce.h, mapping to the register of
+ display function block.
+
+required:
+ - compatible
+ - reg
+ - clocks
+ - clock-names
+
+additionalProperties: false
+
+examples:
+ - |
+
+ disp_ethdr@1c114000 {
+ compatible = "mediatek,mt8195-disp-ethdr";
+ reg = <0 0x1c114000 0 0x1000>,
+ <0 0x1c115000 0 0x1000>,
+ <0 0x1c117000 0 0x1000>,
+ <0 0x1c119000 0 0x1000>,
+ <0 0x1c11A000 0 0x1000>,
+ <0 0x1c11B000 0 0x1000>,
+ <0 0x1c11C000 0 0x1000>;
+ reg-names = "mixer", "vdo_fe0", "vdo_fe1", "gfx_fe0", "gfx_fe1",
+ "vdo_be", "adl_ds";
+ mediatek,gce-client-reg = <&gce1 SUBSYS_1c11XXXX 0x4000 0x1000>,
+ <&gce1 SUBSYS_1c11XXXX 0x5000 0x1000>,
+ <&gce1 SUBSYS_1c11XXXX 0x7000 0x1000>,
+ <&gce1 SUBSYS_1c11XXXX 0x9000 0x1000>,
+ <&gce1 SUBSYS_1c11XXXX 0xA000 0x1000>,
+ <&gce1 SUBSYS_1c11XXXX 0xB000 0x1000>,
+ <&gce1 SUBSYS_1c11XXXX 0xC000 0x1000>;
+ clocks = <&vdosys1 CLK_VDO1_DISP_MIXER>,
+ <&vdosys1 CLK_VDO1_HDR_VDO_FE0>,
+ <&vdosys1 CLK_VDO1_HDR_VDO_FE1>,
+ <&vdosys1 CLK_VDO1_HDR_GFX_FE0>,
+ <&vdosys1 CLK_VDO1_HDR_GFX_FE1>,
+ <&vdosys1 CLK_VDO1_HDR_VDO_BE>,
+ <&vdosys1 CLK_VDO1_26M_SLOW>,
+ <&vdosys1 CLK_VDO1_HDR_VDO_FE0_DL_ASYNC>,
+ <&vdosys1 CLK_VDO1_HDR_VDO_FE1_DL_ASYNC>,
+ <&vdosys1 CLK_VDO1_HDR_GFX_FE0_DL_ASYNC>,
+ <&vdosys1 CLK_VDO1_HDR_GFX_FE1_DL_ASYNC>,
+ <&vdosys1 CLK_VDO1_HDR_VDO_BE_DL_ASYNC>,
+ <&topckgen CLK_TOP_ETHDR_SEL>;
+ clock-names = "mixer", "vdo_fe0", "vdo_fe1", "gfx_fe0", "gfx_fe1",
+ "vdo_be", "adl_ds", "vdo_fe0_async", "vdo_fe1_async",
+ "gfx_fe0_async", "gfx_fe1_async","vdo_be_async",
+ "ethdr_top";
+ power-domains = <&spm MT8195_POWER_DOMAIN_VDOSYS1>;
+ iommus = <&iommu_vpp M4U_PORT_L3_HDR_DS>,
+ <&iommu_vpp M4U_PORT_L3_HDR_ADL>;
+ interrupts = <GIC_SPI 517 IRQ_TYPE_LEVEL_HIGH 0>; /* disp mixer */
+ };
+
+
+...
1. Add ethdr definition file for mt8195 display. 2. Add mediatek,ethdr.yaml to decribe ethdr module in details. Signed-off-by: Nancy.Lin <nancy.lin@mediatek.com> --- .../display/mediatek/mediatek,disp.yaml | 5 + .../display/mediatek/mediatek,ethdr.yaml | 137 ++++++++++++++++++ 2 files changed, 142 insertions(+) create mode 100644 Documentation/devicetree/bindings/display/mediatek/mediatek,ethdr.yaml