diff options
| author | Kaustabh Chakraborty <kauschluss@disroot.org> | 2025-07-06 22:59:45 +0530 |
|---|---|---|
| committer | Inki Dae <inki.dae@samsung.com> | 2025-09-15 20:19:18 +0900 |
| commit | 0e6ee83c4b68448063e88e14c13c17d83e7d9735 (patch) | |
| tree | 3f8aef32a6d568c0461cf2c94f9eef5765e81a6c | |
| parent | 77169a11d4e9916f6c22587df396d6128505dbfb (diff) | |
dt-bindings: display: samsung,exynos7-decon: document iommus, memory-region, and ports
Similar to FIMD and Exynos5433's DECON, the Exynos7 DECON hardware:
- May optionally require an IOMMU to initialize a display region.
- Outputs image data to another block, say an MIC or a DSI master.
If an IOMMU is present, it may also require to access the reserved
framebuffer region.
Document these bindings in the devicetree schema.
Signed-off-by: Kaustabh Chakraborty <kauschluss@disroot.org>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
| -rw-r--r-- | Documentation/devicetree/bindings/display/samsung/samsung,exynos7-decon.yaml | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/display/samsung/samsung,exynos7-decon.yaml b/Documentation/devicetree/bindings/display/samsung/samsung,exynos7-decon.yaml index 53916e4c95d8..14b954718008 100644 --- a/Documentation/devicetree/bindings/display/samsung/samsung,exynos7-decon.yaml +++ b/Documentation/devicetree/bindings/display/samsung/samsung,exynos7-decon.yaml @@ -80,6 +80,21 @@ properties: - const: vsync - const: lcd_sys + iommus: + maxItems: 1 + + memory-region: + maxItems: 1 + description: + A phandle to a node describing a reserved framebuffer memory region. + For example, the splash memory region set up by the bootloader. + + port: + $ref: /schemas/graph.yaml#/properties/port + description: + Output port which is connected to either a Mobile Image Compressor + (MIC) or a DSI Master device. + power-domains: maxItems: 1 @@ -92,6 +107,7 @@ required: - clock-names - interrupts - interrupt-names + - port - reg additionalProperties: false @@ -118,4 +134,9 @@ examples: "decon0_vclk"; pinctrl-0 = <&lcd_clk &pwm1_out>; pinctrl-names = "default"; + port { + decon_to_dsi: endpoint { + remote-endpoint = <&dsi_to_decon>; + }; + }; }; |