linux-kernel - Re: [PATCH RFC 3/6] ASoC: soc: qcom: sc8280xp: add support for I2S clocks

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Message-Id: <DDBPDACTUFEW.1VVHN1P0PC6YO@linaro.org>
Date: Tue, 07 Oct 2025 02:35:38 +0100
From: "Alexey Klimov" <alexey.klimov@...aro.org>
To: "Neil Armstrong" <neil.armstrong@...aro.org>
Cc: "Srinivas Kandagatla" <srini@...nel.org>, "Liam Girdwood"
 <lgirdwood@...il.com>, "Mark Brown" <broonie@...nel.org>, "Jaroslav Kysela"
 <perex@...ex.cz>, "Takashi Iwai" <tiwai@...e.com>, "Rob Herring"
 <robh@...nel.org>, "Krzysztof Kozlowski" <krzk+dt@...nel.org>, "Conor
 Dooley" <conor+dt@...nel.org>, "Bjorn Andersson" <andersson@...nel.org>,
 "Konrad Dybcio" <konradybcio@...nel.org>, <linux-sound@...r.kernel.org>,
 <linux-arm-msm@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
 <devicetree@...r.kernel.org>
Subject: Re: [PATCH RFC 3/6] ASoC: soc: qcom: sc8280xp: add support for I2S
 clocks

On Mon Oct 6, 2025 at 7:37 PM BST, Neil Armstrong wrote:
> Add support for getting the I2S clocks used for the MI2S
> interfaces, and enable/disable the clocks on the PCM
> startup and shutdown card callbacks.
>
> Signed-off-by: Neil Armstrong <neil.armstrong@...aro.org>
> ---
>  sound/soc/qcom/sc8280xp.c | 104 +++++++++++++++++++++++++++++++++++++++++++++-
>  1 file changed, 103 insertions(+), 1 deletion(-)
>
> diff --git a/sound/soc/qcom/sc8280xp.c b/sound/soc/qcom/sc8280xp.c
> index 78e327bc2f07767b1032f09af7f45b947e7eb67a..ad4ee5c6fab8994f18de572842f3dab6f4f5397e 100644
> --- a/sound/soc/qcom/sc8280xp.c
> +++ b/sound/soc/qcom/sc8280xp.c
> @@ -4,6 +4,8 @@
>  #include <dt-bindings/sound/qcom,q6afe.h>
>  #include <linux/module.h>
>  #include <linux/platform_device.h>
> +#include <linux/clk.h>
> +#include <linux/of_clk.h>

^^

[..]

>  static const struct snd_soc_ops sc8280xp_be_ops = {
> -	.startup = qcom_snd_sdw_startup,
> +	.startup = sc8280xp_snd_startup,
>  	.shutdown = sc8280xp_snd_shutdown,
>  	.hw_params = sc8280xp_snd_hw_params,
>  	.hw_free = sc8280xp_snd_hw_free,
> @@ -162,6 +222,44 @@ static void sc8280xp_add_be_ops(struct snd_soc_card *card)
>  	}
>  }
>  
> +static const char * const i2s_bus_names[I2S_MAX_CLKS] = {
> +	"primary",
> +	"secondary",
> +	"tertiary",
> +	"quaternary",
> +	"quinary",
> +};
> +
> +static int sc8280xp_get_i2c_clocks(struct platform_device *pdev,
> +				   struct sc8280xp_snd_data *data)
> +{

Could you please confirm that this should be _i2c_ clocks?

[..]

Best regards,
Alexey