On Thu, Oct 01, 2020 at 11:03:03PM +0530, Sameer Pujar wrote: > Add YAML schema for Tegra audio graph sound card DT bindings. It uses the > same DT bindings provided by generic audio graph driver. Along with this > few standard clock DT bindings are added which are specifically required > for Tegra audio. > > Signed-off-by: Sameer Pujar <spujar@xxxxxxxxxx> > --- > .../sound/nvidia,tegra-audio-graph-card.yaml | 70 ++++++++++++++++++++++ > 1 file changed, 70 insertions(+) > create mode 100644 Documentation/devicetree/bindings/sound/nvidia,tegra-audio-graph-card.yaml > > diff --git a/Documentation/devicetree/bindings/sound/nvidia,tegra-audio-graph-card.yaml b/Documentation/devicetree/bindings/sound/nvidia,tegra-audio-graph-card.yaml > new file mode 100644 > index 0000000..b73fbe5 > --- /dev/null > +++ b/Documentation/devicetree/bindings/sound/nvidia,tegra-audio-graph-card.yaml > @@ -0,0 +1,70 @@ > +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) > +%YAML 1.2 > +--- > +$id: http://devicetree.org/schemas/sound/nvidia,tegra-audio-graph-card.yaml# > +$schema: http://devicetree.org/meta-schemas/core.yaml# > + > +title: Audio Graph based Tegra sound card driver > + > +description: | > + This is based on generic audio graph card driver along with additional > + customizations for Tegra platforms. It uses the same bindings with > + additional standard clock DT bindings required for Tegra. > + > + See{LINUX}/Documentation/devicetree/bindings/sound/audio-graph-card.txt > + > +maintainers: > + - Jon Hunter <jonathanh@xxxxxxxxxx> > + - Sameer Pujar <spujar@xxxxxxxxxx> > + > +properties: > + compatible: > + oneOf: > + - const: nvidia,tegra210-audio-graph-card > + - const: nvidia,tegra186-audio-graph-card > + > + clocks: > + minItems: 2 > + > + clock-names: > + minItems: 2 > + items: > + - const: pll_a > + - const: plla_out0 > + > + assigned-clocks: > + minItems: 1 > + maxItems: 3 > + > + assigned-clock-parents: > + minItems: 1 > + maxItems: 3 > + > + assigned-clock-rates: > + minItems: 1 > + maxItems: 3 > + > +required: > + - compatible > + - clocks > + - clock-names > + - assigned-clocks > + - assigned-clock-parents Where's the graph? You need to define the ports and reference the common schema. > + > +examples: > + - | > + #include<dt-bindings/clock/tegra210-car.h> > + > + tegra_sound { > + compatible = "nvidia,tegra210-audio-graph-card"; > + clocks = <&tegra_car TEGRA210_CLK_PLL_A>, > + <&tegra_car TEGRA210_CLK_PLL_A_OUT0>; > + clock-names = "pll_a", "plla_out0"; > + assigned-clocks = <&tegra_car TEGRA210_CLK_PLL_A>, > + <&tegra_car TEGRA210_CLK_PLL_A_OUT0>, > + <&tegra_car TEGRA210_CLK_EXTERN1>; > + assigned-clock-parents = <0>, <0>, <&tegra_car TEGRA210_CLK_PLL_A_OUT0>; > + assigned-clock-rates = <368640000>, <49152000>, <12288000>; > + }; > + > +... > -- > 2.7.4 >
