diff options
| author | Vishwaroop A <va@nvidia.com> | 2025-05-13 20:00:42 +0000 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2025-05-15 09:37:16 +0200 |
| commit | 4614fd6342ab69feebb067d5db84a9bfb9aada9f (patch) | |
| tree | 14b9b0544aadead90543e3a7f80244dbae70a3d7 | |
| parent | 017f1b0bae08e8b456cf35cbdaae93ec19b50f0a (diff) | |
| download | misc-spi-6.16.tar.gz | |
spi: dt-bindings: tegra: Document IOMMU property for Tegra234 QSPIspi-6.16
Add the 'iommus' property to the Tegra QSPI device tree binding.
The property is needed for Tegra234 when using the internal DMA
controller, and is not supported on other Tegra chips, as DMA is
handled by an external controller.
Signed-off-by: Vishwaroop A <va@nvidia.com>
Acked-by: Conor Dooley <conor.dooley@microchip.com>
Reviewed-by: Jon Hunter <jonathanh@nvidia.com>
Link: https://patch.msgid.link/20250513200043.608292-1-va@nvidia.com
Signed-off-by: Mark Brown <broonie@kernel.org>
| -rw-r--r-- | Documentation/devicetree/bindings/spi/nvidia,tegra210-quad.yaml | 18 |
1 files changed, 15 insertions, 3 deletions
diff --git a/Documentation/devicetree/bindings/spi/nvidia,tegra210-quad.yaml b/Documentation/devicetree/bindings/spi/nvidia,tegra210-quad.yaml index 48e97e24026566..8b3640280559d9 100644 --- a/Documentation/devicetree/bindings/spi/nvidia,tegra210-quad.yaml +++ b/Documentation/devicetree/bindings/spi/nvidia,tegra210-quad.yaml @@ -10,9 +10,6 @@ maintainers: - Thierry Reding <thierry.reding@gmail.com> - Jonathan Hunter <jonathanh@nvidia.com> -allOf: - - $ref: spi-controller.yaml# - properties: compatible: enum: @@ -47,6 +44,9 @@ properties: - const: rx - const: tx + iommus: + maxItems: 1 + patternProperties: "@[0-9a-f]+$": type: object @@ -69,6 +69,18 @@ required: unevaluatedProperties: false +allOf: + - $ref: spi-controller.yaml# + - if: + properties: + compatible: + not: + contains: + const: nvidia,tegra234-qspi + then: + properties: + iommus: false + examples: - | #include <dt-bindings/clock/tegra210-car.h> |