On 18-10-22, 21:58, Akhil R wrote: > Add dma-channel-mask property in Tegra GPCDMA document. > > The property would help to specify the channels to be used in > kernel and reserve few for the firmware. This was previously > achieved by limiting the channel number to 31 in the driver. > Now since we can list all 32 channels, update the interrupts > property as well to list all 32 interrupts. Pls cc dt folks and ML on DT patches! > > Signed-off-by: Akhil R <akhilrajeev@xxxxxxxxxx> > Acked-by: Thierry Reding <treding@xxxxxxxxxx> > --- > .../devicetree/bindings/dma/nvidia,tegra186-gpc-dma.yaml | 7 ++++++- > 1 file changed, 6 insertions(+), 1 deletion(-) > > diff --git a/Documentation/devicetree/bindings/dma/nvidia,tegra186-gpc-dma.yaml b/Documentation/devicetree/bindings/dma/nvidia,tegra186-gpc-dma.yaml > index c8894476b6ab..851bd50ee67f 100644 > --- a/Documentation/devicetree/bindings/dma/nvidia,tegra186-gpc-dma.yaml > +++ b/Documentation/devicetree/bindings/dma/nvidia,tegra186-gpc-dma.yaml > @@ -39,7 +39,7 @@ properties: > Should contain all of the per-channel DMA interrupts in > ascending order with respect to the DMA channel index. > minItems: 1 > - maxItems: 31 > + maxItems: 32 > > resets: > maxItems: 1 > @@ -52,6 +52,9 @@ properties: > > dma-coherent: true > > + dma-channel-mask: > + maxItems: 1 > + > required: > - compatible > - reg > @@ -60,6 +63,7 @@ required: > - reset-names > - "#dma-cells" > - iommus > + - dma-channel-mask > > additionalProperties: false > > @@ -108,5 +112,6 @@ examples: > #dma-cells = <1>; > iommus = <&smmu TEGRA186_SID_GPCDMA_0>; > dma-coherent; > + dma-channel-mask = <0xfffffffe>; > }; > ... > -- > 2.17.1 -- ~Vinod
