From: Kenneth Westfield <[email protected]> Add documentation to the sound directory of the device-tree bindings for IPQ806x audio drivers.
Signed-off-by: Kenneth Westfield <[email protected]> Acked-by: Banajit Goswami <[email protected]> --- .../bindings/sound/qcom,ipq806x-snd-card.txt | 25 +++++++++++++++++ .../bindings/sound/qcom,lpass-cpu-dai.txt | 32 ++++++++++++++++++++++ .../bindings/sound/qcom,lpass-pcm-mi2s.txt | 12 ++++++++ .../bindings/sound/qcom,max98357a-codec.txt | 23 ++++++++++++++++ 4 files changed, 92 insertions(+) create mode 100644 Documentation/devicetree/bindings/sound/qcom,ipq806x-snd-card.txt create mode 100644 Documentation/devicetree/bindings/sound/qcom,lpass-cpu-dai.txt create mode 100644 Documentation/devicetree/bindings/sound/qcom,lpass-pcm-mi2s.txt create mode 100644 Documentation/devicetree/bindings/sound/qcom,max98357a-codec.txt diff --git a/Documentation/devicetree/bindings/sound/qcom,ipq806x-snd-card.txt b/Documentation/devicetree/bindings/sound/qcom,ipq806x-snd-card.txt new file mode 100644 index 0000000000000000000000000000000000000000..10178737b4bdc6108475f48726bdbf40b6b044b5 --- /dev/null +++ b/Documentation/devicetree/bindings/sound/qcom,ipq806x-snd-card.txt @@ -0,0 +1,25 @@ +* Qualcomm Technologies IPQ806x SoundCard + +This node models the Qualcomm Technologies IPQ806x LPASS Audio SoundCard, +with a connection between the CPU MI2S DAI and the external DAC. + +Required properties: +- compatible : "qcom,ipq806x-snd-card" +- qcom,model : The user-visible name of this sound card + * <any string is valid> +- platform : This is a phandle reference to platform device driver node (for the soundcard dai-link) +- cpu : This is a phandle reference to CPU DAI device driver node (for the soundcard dai-link) +- codec : This is a phandle reference to codec DAI device driver node (for the soundcard dai-link) +- codec-dai : This is a string that names the codec DAI device (for the soundcard dai-link) + * max98357a-codec-dai + +Example: + +sound { + compatible = "qcom,ipq806x-snd-card"; + model = "ipq806x-snd-card"; + platform = <&lpass_pcm_mi2s>; + cpu = <&lpass_cpu_mi2s>; + codec = <&max98357a_codec>; + codec-dai = "max98357a-codec-dai"; +}; diff --git a/Documentation/devicetree/bindings/sound/qcom,lpass-cpu-dai.txt b/Documentation/devicetree/bindings/sound/qcom,lpass-cpu-dai.txt new file mode 100644 index 0000000000000000000000000000000000000000..ee94af49f90aedb0889f1ddf043780a80e585f62 --- /dev/null +++ b/Documentation/devicetree/bindings/sound/qcom,lpass-cpu-dai.txt @@ -0,0 +1,32 @@ +* Qualcomm Technologies IPQ806x LPASS DAI + +This node models the Qualcomm Technologies IPQ806x LPASS MI2S DAI port. + +Required properties: +- compatible : "qcom,lpass-cpu-mi2s" +- reg : Address space for the LPASS audio interface registers +- reg-names : The name of the LPASS audio interface register address space + * lpass-lpaif-mem +- clocks : A list of clock specifiers for the audio interface + * AHBIX bus clock + * MI2S OSR clock + * MI2S Bit clock +- clock-names : A list of audio interface clock names + * ahbix_clk + * mi2s_osr_clk + * mi2s_bit_clk +- interrupts : Phandle to the LPASS audio interface interrupt +- interrupt-names : The name of the LPASS audio interface interrupt + * lpass-lpaif-irq + +Example: + +lpass-cpu-mi2s { + compatible = "qcom,lpass-cpu-dai"; + reg = <0x28100000 0x10000>; + reg-names = "lpass-lpaif-mem"; + clocks = <&lcc AHBIX_CLK>, <&lcc MI2S_OSR_CLK>, <&lcc MI2S_BIT_CLK>; + clock-names = "ahbix_clk", "mi2s_osr_clk", "mi2s_bit_clk"; + interrupts = <0 85 1>; + interrupt-names = "lpass-lpaif-irq"; +}; diff --git a/Documentation/devicetree/bindings/sound/qcom,lpass-pcm-mi2s.txt b/Documentation/devicetree/bindings/sound/qcom,lpass-pcm-mi2s.txt new file mode 100644 index 0000000000000000000000000000000000000000..09c04b7f37b51076860f1df10114e0a47b921404 --- /dev/null +++ b/Documentation/devicetree/bindings/sound/qcom,lpass-pcm-mi2s.txt @@ -0,0 +1,12 @@ +* Qualcomm Technologies IPQ806x PCM audio interface + +This node models the Qualcomm Technologies IPQ806x PCM audio interface. + +Required properties: +- compatible : "qcom,lpass-pcm-mi2s" + +Example: + +lpass-pcm-mi2s { + compatible = "qcom,lpass-pcm-mi2s"; +}; diff --git a/Documentation/devicetree/bindings/sound/qcom,max98357a-codec.txt b/Documentation/devicetree/bindings/sound/qcom,max98357a-codec.txt new file mode 100644 index 0000000000000000000000000000000000000000..14bc14b1049f4138123db8fd17e8926545cbb218 --- /dev/null +++ b/Documentation/devicetree/bindings/sound/qcom,max98357a-codec.txt @@ -0,0 +1,23 @@ +* Maxim MAX98357A DAC + +This node models the Maxim MAX98357A DAC as a codec DAI. +This is for audio on the Qualcomm IPQ806x SOC. + +Required properties: +- compatible : "qcom,max98357a-codec" +- dac-gpios : Phandle to the GPIO specifier for the GPIO -> DAC SDMODE pin +- pinctrl-names : A list of names indicating the state of the MI2S pins + * mi2s-disabled + * mi2s-enabled +- pinctrl-0 : The disabled state of the MI2S pins +- pinctrl-1 : The enabled state of the MI2S pins + +Example: + +max98357a-codec { + compatible = "qcom,max98357a-codec"; + dac-gpios = <&qcom_pinmux 25 0>; + pinctrl-names = "mi2s-disabled", "mi2s_enabled"; + pinctrl-0 = <&mi2s_disabled>; + pinctrl-1 = <&mi2s_enabled>; +}; -- 1.8.2.1 -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
