On Tue, Jun 29, 2021 at 09:47:34AM +0800, Trevor Wu wrote: > This patch adds mt8195 audio afe document. > > Signed-off-by: Trevor Wu <trevor.wu@xxxxxxxxxxxx> > --- > This patch depends on the following series that have not been accepted. > > [1] Mediatek MT8195 clock support > https://patchwork.kernel.org/project/linux-mediatek/list/?series=501923 > (dt-bindings/clock/mt8195-clk.h is included) > > [2] Mediatek MT8195 power domain support > https://patchwork.kernel.org/project/linux-mediatek/list/?series=500709 > (dt-bindings/power/mt8195-power.h is included) > --- > .../bindings/sound/mt8195-afe-pcm.yaml | 136 ++++++++++++++++++ > 1 file changed, 136 insertions(+) > create mode 100644 Documentation/devicetree/bindings/sound/mt8195-afe-pcm.yaml > > diff --git a/Documentation/devicetree/bindings/sound/mt8195-afe-pcm.yaml b/Documentation/devicetree/bindings/sound/mt8195-afe-pcm.yaml > new file mode 100644 > index 000000000000..a4fb5c7dd022 > --- /dev/null > +++ b/Documentation/devicetree/bindings/sound/mt8195-afe-pcm.yaml > @@ -0,0 +1,136 @@ > +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) > +%YAML 1.2 > +--- > +$id: http://devicetree.org/schemas/sound/mt8195-afe-pcm.yaml# > +$schema: http://devicetree.org/meta-schemas/core.yaml# > + > +title: Mediatek AFE PCM controller for mt8195 > + > +maintainers: > + - Trevor Wu <trevor.wu@xxxxxxxxxxxx> > + > +properties: > + compatible: > + const: mediatek,mt8195-audio > + > + interrupts: > + maxItems: 1 > + > + mediatek,topckgen: > + $ref: "/schemas/types.yaml#/definitions/phandle" > + description: The phandle of the mediatek topckgen controller > + > + power-domains: > + maxItems: 1 > + > + clocks: > + items: > + - description: audio 26M clock > + - description: AFE clock > + - description: audio infra sys clock > + - description: audio infra 26M clock > + > + clock-names: > + items: > + - const: clk26m > + - const: aud_afe > + - const: infra_ao_audio > + - const: infra_ao_audio_26m_b > + > + etdm-in1-chn-disabled: Needs a vendor prefix. > + $ref: /schemas/types.yaml#/definitions/uint8-array > + maxItems: 24 > + description: Specify which input channel should be disabled. > + > + etdm-in2-chn-disabled: Needs a vendor prefix. > + $ref: /schemas/types.yaml#/definitions/uint8-array > + maxItems: 16 > + description: Specify which input channel should be disabled. > + > +patternProperties: > + "^etdm-in[1-2]-mclk-source$": And all these need a vendor prefix. > + $ref: /schemas/types.yaml#/definitions/uint32 > + description: Specify etdm in mclk source clock. > + enum: > + - 0 # xtal_26m_ck > + - 1 # apll1_ck > + - 2 # apll2_ck > + - 3 # apll3_ck > + - 4 # apll4_ck > + - 5 # apll5_ck > + - 6 # hdmirx_apll_ck > + > + "^etdm-out[1-3]-mclk-source$": > + $ref: /schemas/types.yaml#/definitions/uint32 > + description: Specify etdm out mclk source clock. > + > + "^etdm-in[1-2]-mclk-alwasys-on-rate$": > + $ref: /schemas/types.yaml#/definitions/uint32 > + description: Specify etdm in mclk output rate for always on case. Hz? If so, '-hz' unit suffix and drop the type ref. > + > + "^etdm-out[1-3]-mclk-alwasys-on-rate$": typo: alwasys > + $ref: /schemas/types.yaml#/definitions/uint32 > + description: Specify etdm out mclk output rate for always on case. Hz? > + > + "^etdm-in[1-2]-data-mode$": > + $ref: /schemas/types.yaml#/definitions/uint32 > + description: Specify etdm in data mode. > + enum: > + - 0 # one pin (TDM) > + - 1 # multi pin (I2S) Can be boolean? > + > + "^etdm-out[1-3]-data-mode$": > + $ref: /schemas/types.yaml#/definitions/uint32 > + description: Specify etdm out data mode. Constraints on values? > + > + "^etdm-in[1-2]-cowork-source$": > + $ref: /schemas/types.yaml#/definitions/uint32 > + description: | > + etdm modules can share the same external clock pin. Specify > + which etdm clock source is required by this etdm in moudule. > + enum: > + - 0 # etdm1_in > + - 1 # etdm2_in > + - 2 # etdm1_out > + - 3 # etdm2_out > + - 4 # etdm3_out > + > + "^etdm-out[1-3]-cowork-source$": > + $ref: /schemas/types.yaml#/definitions/uint32 > + description: | > + etdm modules can share the same external clock pin. Specify > + which etdm clock source is required by this etdm out moudule. Constraints? > + > +required: > + - compatible > + - interrupts > + - mediatek,topckgen > + - power-domains > + - clocks > + - clock-names > + > +additionalProperties: false > + > +examples: > + - | > + #include <dt-bindings/clock/mt8195-clk.h> > + #include <dt-bindings/interrupt-controller/arm-gic.h> > + #include <dt-bindings/interrupt-controller/irq.h> > + #include <dt-bindings/power/mt8195-power.h> > + > + afe: mt8195-afe-pcm { > + compatible = "mediatek,mt8195-audio"; > + interrupts = <GIC_SPI 822 IRQ_TYPE_LEVEL_HIGH 0>; > + mediatek,topckgen = <&topckgen>; > + power-domains = <&spm MT8195_POWER_DOMAIN_AUDIO>; > + clocks = <&clk26m>, > + <&audsys CLK_AUD_AFE>, > + <&infracfg_ao CLK_INFRA_AO_AUDIO>, > + <&infracfg_ao CLK_INFRA_AO_AUDIO_26M_B>; > + clock-names = "clk26m", > + "aud_afe", > + "infra_ao_audio", > + "infra_ao_audio_26m_b"; > + }; > + > +... > -- > 2.18.0 > >
