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| author | Thierry Reding <treding@nvidia.com> | 2023-04-20 14:12:33 +0200 |
|---|---|---|
| committer | Thierry Reding <treding@nvidia.com> | 2024-04-26 17:40:18 +0200 |
| commit | 22b92b28fcf4f7748279c4071c63e53fecfacc2d (patch) | |
| tree | c91eee049f7fef25b1e39309cc53fa9fec820c4b | |
| parent | 4cece764965020c22cff7665b18a012006359095 (diff) | |
| download | linux-for-6.10/dt-bindings.tar.gz | |
dt-bindings: display: tegra: Allow dma-coherent on Tegra194 and latertegra-for-6.10-dt-bindingsfor-6.10/dt-bindings
Tegra194 and later chips have a coherency fabric, so some devices can be
marked as DMA coherent to avoid unnecessary cache maintenance.
Reviewed-by: Krzysztof Kozlowski <krzk@kernel.org>
Signed-off-by: Thierry Reding <treding@nvidia.com>
| -rw-r--r-- | Documentation/devicetree/bindings/display/tegra/nvidia,tegra20-host1x.yaml | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/display/tegra/nvidia,tegra20-host1x.yaml b/Documentation/devicetree/bindings/display/tegra/nvidia,tegra20-host1x.yaml index 94c5242c03b288..3563378a01af47 100644 --- a/Documentation/devicetree/bindings/display/tegra/nvidia,tegra20-host1x.yaml +++ b/Documentation/devicetree/bindings/display/tegra/nvidia,tegra20-host1x.yaml @@ -182,6 +182,15 @@ allOf: compatible: contains: enum: + - nvidia,tegra194-host1x + then: + properties: + dma-coherent: true + - if: + properties: + compatible: + contains: + enum: - nvidia,tegra234-host1x then: properties: @@ -226,6 +235,8 @@ allOf: use. Should be a mapping of IDs 0..n to IOMMU entries corresponding to usable stream IDs. + dma-coherent: true + required: - reg-names |