Re: [PATCH 7/7] arm64: dts: qcom: msm8998-xperia: Add audio clock and its pin

Bjorn Andersson
2021-09-07T13:47:00Z

On Fri 03 Sep 11:09 PDT 2021, AngeloGioacchino Del Regno wrote:

> All smartphones of this platform are equipped with a WCD9335 audio
> codec, getting its MCLK from PM8998 gpio13: add this clock to DT.
>
> Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@somainline.org>
> Reviewed-by: Marijn Suijten <marijn.suijten@somainline.org>
> ---
> .../dts/qcom/msm8998-sony-xperia-yoshino.dtsi | 19 +++++++++++++++++++
> 1 file changed, 19 insertions(+)
>
> diff --git a/arch/arm64/boot/dts/qcom/msm8998-sony-xperia-yoshino.dtsi b/arch/arm64/boot/dts/qcom/msm8998-sony-xperia-yoshino.dtsi
> index 5fbe5abf4133..7aeebd3b2e9e 100644
> --- a/arch/arm64/boot/dts/qcom/msm8998-sony-xperia-yoshino.dtsi
> +++ b/arch/arm64/boot/dts/qcom/msm8998-sony-xperia-yoshino.dtsi
> @@ -20,6 +20,19 @@ / {
> qcom,msm-id = <0x124 0x20000>, <0x124 0x20001>; /* 8998v2, v2.1 */
> qcom,board-id = <8 0>;
>
> + clocks {
> + compatible = "simple-bus";
> +
> + div1_mclk: divclk1 {
> + compatible = "gpio-gate-clock";
> + pinctrl-0 = <&audio_mclk_pin>;
> + pinctrl-names = "default";
> + clocks = <&rpmcc RPM_SMD_DIV_CLK1>;

What controls the clock rate of divclk1?

Regards,
Bjorn

> + #clock-cells = <0>;
> + enable-gpios = <&pm8998_gpio 13 GPIO_ACTIVE_HIGH>;
> + };
> + };
> +
> board_vbat: vbat-regulator {
> compatible = "regulator-fixed";
> regulator-name = "VBAT";
> @@ -313,6 +326,12 @@ cam_snapshot_pin_a: cam-snapshot-btn-active {
> input-enable;
> qcom,drive-strength = <PMIC_GPIO_STRENGTH_NO>;
> };
> +
> + audio_mclk_pin: audio-mclk-pin-active {
> + pins = "gpio13";
> + function = "func2";
> + power-source = <0>;
> + };
> };
>
> &pmi8998_gpio {
> --
> 2.32.0
>