Add the bindings and the related documentation for the audio hdmitx control glue of the Amlogic g12a SoC family
Signed-off-by: Jerome Brunet jbrunet@baylibre.com --- .../bindings/sound/amlogic,g12a-tohdmitx.txt | 55 +++++++++++++++++++ .../dt-bindings/sound/meson-g12a-tohdmitx.h | 13 +++++ 2 files changed, 68 insertions(+) create mode 100644 Documentation/devicetree/bindings/sound/amlogic,g12a-tohdmitx.txt create mode 100644 include/dt-bindings/sound/meson-g12a-tohdmitx.h
diff --git a/Documentation/devicetree/bindings/sound/amlogic,g12a-tohdmitx.txt b/Documentation/devicetree/bindings/sound/amlogic,g12a-tohdmitx.txt new file mode 100644 index 000000000000..aa6c35570d31 --- /dev/null +++ b/Documentation/devicetree/bindings/sound/amlogic,g12a-tohdmitx.txt @@ -0,0 +1,55 @@ +* Amlogic HDMI Tx control glue + +Required properties: +- compatible: "amlogic,g12a-tohdmitx" +- reg: physical base address of the controller and length of memory + mapped region. +- #sound-dai-cells: should be 1. + +Example on the S905X2 SoC: + +tohdmitx: audio-controller@744 { + compatible = "amlogic,g12a-tohdmitx"; + reg = <0x0 0x744 0x0 0x4>; + #sound-dai-cells = <1>; +}; + +Example of an 'amlogic,axg-sound-card': + +sound { + compatible = "amlogic,axg-sound-card"; + +[...] + + dai-link-x { + sound-dai = <&tdmif_a>; + dai-format = "i2s"; + dai-tdm-slot-tx-mask-0 = <1 1>; + + codec-0 { + sound-dai = <&tohdmitx TOHDMITX_I2S_IN_A>; + }; + + codec-1 { + sound-dai = <&external_dac>; + }; + }; + + dai-link-y { + sound-dai = <&tdmif_c>; + dai-format = "i2s"; + dai-tdm-slot-tx-mask-0 = <1 1>; + + codec { + sound-dai = <&tohdmitx TOHDMITX_I2S_IN_C>; + }; + }; + + dai-link-z { + sound-dai = <&tohdmitx TOHDMITX_I2S_OUT>; + + codec { + sound-dai = <&hdmi_tx>; + }; + }; +}; diff --git a/include/dt-bindings/sound/meson-g12a-tohdmitx.h b/include/dt-bindings/sound/meson-g12a-tohdmitx.h new file mode 100644 index 000000000000..c5e1f48d30d0 --- /dev/null +++ b/include/dt-bindings/sound/meson-g12a-tohdmitx.h @@ -0,0 +1,13 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +#ifndef __DT_MESON_G12A_TOHDMITX_H +#define __DT_MESON_G12A_TOHDMITX_H + +#define TOHDMITX_I2S_IN_A 0 +#define TOHDMITX_I2S_IN_B 1 +#define TOHDMITX_I2S_IN_C 2 +#define TOHDMITX_I2S_OUT 3 +#define TOHDMITX_SPDIF_IN_A 4 +#define TOHDMITX_SPDIF_IN_B 5 +#define TOHDMITX_SPDIF_OUT 6 + +#endif /* __DT_MESON_G12A_TOHDMITX_H */