diff options
| author | Michal Wilczynski <m.wilczynski@samsung.com> | 2025-04-18 14:22:48 +0300 |
|---|---|---|
| committer | Matt Coster <matt.coster@imgtec.com> | 2025-04-24 13:07:37 +0300 |
| commit | 1300a7f8a7d4c5f88de30312cf34448b96539c23 (patch) | |
| tree | 1bc3c1f4e2523f6e3ba0879e553b69935cf69e87 | |
| parent | 3206a96675342badb0254558ba4b4c8764aa3ae7 (diff) | |
| download | linux-1300a7f8a7d4c5f88de30312cf34448b96539c23.tar.xz | |
dt-bindings: gpu: Add 'resets' property for GPU initialization
All IMG Rogue GPUs include a reset line that participates in the
power-up sequence. On some SoCs (e.g., T-Head TH1520 and Banana Pi
BPI-F3), this reset line is exposed and must be driven explicitly to
ensure proper initialization.
To support this, add a 'resets' property to the GPU device tree
bindings.
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Michal Wilczynski <m.wilczynski@samsung.com>
Reviewed-by: Matt Coster <matt.coster@imgtec.com>
Link: https://lore.kernel.org/r/20250418-apr_18_reset_img-v6-1-85a06757b698@samsung.com
Signed-off-by: Matt Coster <matt.coster@imgtec.com>
| -rw-r--r-- | Documentation/devicetree/bindings/gpu/img,powervr-rogue.yaml | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/gpu/img,powervr-rogue.yaml b/Documentation/devicetree/bindings/gpu/img,powervr-rogue.yaml index 0fb2cd939aa4..4450e2e73b3c 100644 --- a/Documentation/devicetree/bindings/gpu/img,powervr-rogue.yaml +++ b/Documentation/devicetree/bindings/gpu/img,powervr-rogue.yaml @@ -64,6 +64,9 @@ properties: dma-coherent: true + resets: + maxItems: 1 + required: - compatible - reg |