[PATCH v5 02/10] dt-bindings: display: tegra: Document memory regions
Thierry Reding <[email protected]>
| Newsgroups | org.kernel.vger.linux-trace-kernel,dev.linux.lists.iommu,org.freedesktop.lists.dri-devel,org.kernel.vger.linux-devicetree,org.kernel.vger.linux-kernel,org.kernel.vger.linux-media,org.kernel.vger.linux-s390,org.kernel.vger.linux-tegra,org.kvack.linux-mm |
|---|---|
| Message-ID | <[email protected]> |
From: Thierry Reding <[email protected]> Add the memory-region and memory-region-names properties to the bindings for the display controllers and the host1x engine found on various Tegra generations. These memory regions are used to access firmware-provided framebuffer memory as well as the video protection region. Reviewed-by: Rob Herring (Arm) <[email protected]> Signed-off-by: Thierry Reding <[email protected]> --- Changes in v4: - typofix Changes in v3: - document properties for VIC --- .../devicetree/bindings/display/tegra/nvidia,tegra124-vic.yaml | 8 ++++++++ .../devicetree/bindings/display/tegra/nvidia,tegra186-dc.yaml | 10 ++++++++++ .../devicetree/bindings/display/tegra/nvidia,tegra20-dc.yaml | 10 +++++++++- .../bindings/display/tegra/nvidia,tegra20-host1x.yaml | 7 +++++++ 4 files changed, 34 insertions(+), 1 deletion(-) diff --git a/Documentation/devicetree/bindings/display/tegra/nvidia,tegra124-vic.yaml b/Documentation/devicetree/bindings/display/tegra/nvidia,tegra124-vic.yaml index bdf981781bd5..fdd3fe9e2547 100644 --- a/Documentation/devicetree/bindings/display/tegra/nvidia,tegra124-vic.yaml +++ b/Documentation/devicetree/bindings/display/tegra/nvidia,tegra124-vic.yaml @@ -68,6 +68,14 @@ properties: - const: dma-mem # read - const: write + memory-region: + items: + - description: reference to the video protection memory region + + memory-region-names: + items: + - const: protected + dma-coherent: true additionalProperties: false diff --git a/Documentation/devicetree/bindings/display/tegra/nvidia,tegra186-dc.yaml b/Documentation/devicetree/bindings/display/tegra/nvidia,tegra186-dc.yaml index ce4589466a18..881bfbf4764d 100644 --- a/Documentation/devicetree/bindings/display/tegra/nvidia,tegra186-dc.yaml +++ b/Documentation/devicetree/bindings/display/tegra/nvidia,tegra186-dc.yaml @@ -57,6 +57,16 @@ properties: - const: dma-mem # read-0 - const: read-1 + memory-region: + minItems: 1 + maxItems: 2 + + memory-region-names: + items: + enum: [ framebuffer, protected ] + minItems: 1 + maxItems: 2 + nvidia,outputs: description: A list of phandles of outputs that this display controller can drive. diff --git a/Documentation/devicetree/bindings/display/tegra/nvidia,tegra20-dc.yaml b/Documentation/devicetree/bindings/display/tegra/nvidia,tegra20-dc.yaml index 69be95afd562..3bf06dcd6198 100644 --- a/Documentation/devicetree/bindings/display/tegra/nvidia,tegra20-dc.yaml +++ b/Documentation/devicetree/bindings/display/tegra/nvidia,tegra20-dc.yaml @@ -65,7 +65,15 @@ properties: items: - description: phandle to the core power domain - memory-region: true + memory-region: + minItems: 1 + maxItems: 2 + + memory-region-names: + items: + enum: [ framebuffer, protected ] + minItems: 1 + maxItems: 2 nvidia,head: $ref: /schemas/types.yaml#/definitions/uint32 diff --git a/Documentation/devicetree/bindings/display/tegra/nvidia,tegra20-host1x.yaml b/Documentation/devicetree/bindings/display/tegra/nvidia,tegra20-host1x.yaml index 8312b7699cbe..420a1fe5ee80 100644 --- a/Documentation/devicetree/bindings/display/tegra/nvidia,tegra20-host1x.yaml +++ b/Documentation/devicetree/bindings/display/tegra/nvidia,tegra20-host1x.yaml @@ -98,6 +98,13 @@ properties: items: - description: phandle to the HEG or core power domain + memory-region: + maxItems: 1 + + memory-region-names: + items: + - const: protected + required: - compatible - interrupts -- 2.55.0