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| author |   Rob Herring <robh@kernel.org> | 2022-01-18 19:50:38 -0600 |
|---|---|---|
| committer | Rob Herring <robh@kernel.org> | 2022-02-04 09:43:42 -0600 |
| commit | 39bd2b6a3783b8990d97494ec4c8698ba5bb6740 (patch) | |
| tree | 5e7bda853099ff766cd35c26d0645c44a9601f43 /Documentation/devicetree/bindings/dma | |
| parent | dt-bindings: dmaengine: zynqmp_dma: convert to yaml (diff) | |
| download | linux-dev-39bd2b6a3783b8990d97494ec4c8698ba5bb6740.tar.xz linux-dev-39bd2b6a3783b8990d97494ec4c8698ba5bb6740.zip | |
dt-bindings: Improve phandle-array schemas
The 'phandle-array' type is a bit ambiguous. It can be either just an
array of phandles or an array of phandles plus args. Many schemas for
phandle-array properties aren't clear in the schema which case applies
though the description usually describes it.
The array of phandles case boils down to needing:
items:
maxItems: 1
The phandle plus args cases should typically take this form:
items:
- items:
- description: A phandle
- description: 1st arg cell
- description: 2nd arg cell
With this change, some examples need updating so that the bracketing of
property values matches the schema.
Signed-off-by: Rob Herring <robh@kernel.org>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Acked-by: Vinod Koul <vkoul@kernel.org>
Acked-by: Ulf Hansson <ulf.hansson@linaro.org>
Acked-by: Georgi Djakov <djakov@kernel.org>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Acked-by: Mark Brown <broonie@kernel.org>
Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
Acked-by: Stephen Boyd <sboyd@kernel.org>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Acked-by: Marc Kleine-Budde <mkl@pengutronix.de>
Link: https://lore.kernel.org/r/20220119015038.2433585-1-robh@kernel.org
Diffstat (limited to 'Documentation/devicetree/bindings/dma')
| -rw-r--r-- | Documentation/devicetree/bindings/dma/dma-router.yaml | 2 | ||||
| -rw-r--r-- | Documentation/devicetree/bindings/dma/st,stm32-dmamux.yaml | 2 |
2 files changed, 3 insertions, 1 deletions
diff --git a/Documentation/devicetree/bindings/dma/dma-router.yaml b/Documentation/devicetree/bindings/dma/dma-router.yaml index e72748496fd9..4b817f5dc30e 100644 --- a/Documentation/devicetree/bindings/dma/dma-router.yaml +++ b/Documentation/devicetree/bindings/dma/dma-router.yaml @@ -24,6 +24,8 @@ properties: dma-masters: $ref: /schemas/types.yaml#/definitions/phandle-array + items: + maxItems: 1 description: Array of phandles to the DMA controllers the router can direct the signal to. diff --git a/Documentation/devicetree/bindings/dma/st,stm32-dmamux.yaml b/Documentation/devicetree/bindings/dma/st,stm32-dmamux.yaml index f751796531c9..7b1833d6caa2 100644 --- a/Documentation/devicetree/bindings/dma/st,stm32-dmamux.yaml +++ b/Documentation/devicetree/bindings/dma/st,stm32-dmamux.yaml @@ -46,7 +46,7 @@ examples: #dma-cells = <3>; dma-requests = <128>; dma-channels = <16>; - dma-masters = <&dma1 &dma2>; + dma-masters = <&dma1>, <&dma2>; clocks = <&timer_clk>; }; |