linux-kernel - Re: [PATCH v2 3/6] clk: qcom: Add lpass clock controller driver for SC8280XP

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Message-ID: <098883dd-f517-d541-de00-1a7fc0ada017@linaro.org>
Date:   Wed, 31 May 2023 22:01:32 +0200
From:   Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
To:     Srinivas Kandagatla <srinivas.kandagatla@...aro.org>,
        andersson@...nel.org, robh+dt@...nel.org,
        krzysztof.kozlowski+dt@...aro.org
Cc:     johan+linaro@...nel.org, agross@...nel.org,
        konrad.dybcio@...aro.org, mturquette@...libre.com,
        sboyd@...nel.org, conor+dt@...nel.org,
        linux-arm-msm@...r.kernel.org, linux-clk@...r.kernel.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2 3/6] clk: qcom: Add lpass clock controller driver for
 SC8280XP

On 25/05/2023 14:29, Srinivas Kandagatla wrote:
> Add support for the lpass clock controller found on SC8280XP based devices.
> This would allow lpass peripheral loader drivers to control the clocks and
> bring the subsystems out of reset.
> 
> Currently this patch only supports resets as the Q6DSP is in control of
> LPASS IP which manages most of the clocks via Q6PRM service on GPR rpmsg
> channel.
> 
> Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@...aro.org>
> ---
>  drivers/clk/qcom/Kconfig            |  8 ++++
>  drivers/clk/qcom/Makefile           |  1 +
>  drivers/clk/qcom/lpasscc-sc8280xp.c | 63 +++++++++++++++++++++++++++++
>  3 files changed, 72 insertions(+)
>  create mode 100644 drivers/clk/qcom/lpasscc-sc8280xp.c
> 
> diff --git a/drivers/clk/qcom/Kconfig b/drivers/clk/qcom/Kconfig
> index 85869e7a9f16..e25993abb519 100644
> --- a/drivers/clk/qcom/Kconfig
> +++ b/drivers/clk/qcom/Kconfig
> @@ -523,6 +523,14 @@ config SC_LPASSCC_7280
>  	  Say Y if you want to use the LPASS branch clocks of the LPASS clock
>  	  controller to reset the LPASS subsystem.
>  
> +config SC_LPASSCC_8280XP
> +	tristate "SC8280 Low Power Audio Subsystem (LPASS) Clock Controller"

depends on ARM64 || COMPILE_TEST

Best regards,
Krzysztof