linux-kernel - Re: [PATCH 4/8] clk: qcom: Add A7 PLL support for SDX65

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Message-ID: <20220214084214.GD3494@thinkpad>
Date:   Mon, 14 Feb 2022 14:12:14 +0530
From:   Manivannan Sadhasivam <manivannan.sadhasivam@...aro.org>
To:     Rohit Agarwal <quic_rohiagar@...cinc.com>
Cc:     agross@...nel.org, bjorn.andersson@...aro.org,
        mturquette@...libre.com, sboyd@...nel.org,
        linux-arm-msm@...r.kernel.org, linux-clk@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH 4/8] clk: qcom: Add A7 PLL support for SDX65

On Mon, Feb 14, 2022 at 12:29:47PM +0530, Rohit Agarwal wrote:
> Add support for PLL found in Qualcomm SDX65 platforms which is used to
> provide clock to the Cortex A7 CPU via a mux. This PLL can provide high
> frequency clock to the CPU above 1GHz as compared to the other sources
> like GPLL0.
> 
> In this driver, the power domain is attached to the cpudev. This is
> required for CPUFreq functionality and there seems to be no better place
> to do other than this driver (no dedicated CPUFreq driver).
> 
> Signed-off-by: Rohit Agarwal <quic_rohiagar@...cinc.com>
> ---
>  drivers/clk/qcom/Kconfig  | 6 +++---
>  drivers/clk/qcom/a7-pll.c | 1 +
>  2 files changed, 4 insertions(+), 3 deletions(-)
> 
> diff --git a/drivers/clk/qcom/Kconfig b/drivers/clk/qcom/Kconfig
> index 6cd0634..1904ba1 100644
> --- a/drivers/clk/qcom/Kconfig
> +++ b/drivers/clk/qcom/Kconfig
> @@ -29,11 +29,11 @@ config QCOM_A53PLL
>  	  devices.
>  
>  config QCOM_A7PLL
> -	tristate "SDX55 A7 PLL"
> +	tristate "SDX55 like A7 PLL"

A7 PLL driver for SDX55 and SDX65

>  	help
> -	  Support for the A7 PLL on SDX55 devices. It provides the CPU with
> +	  Support for the A7 PLL on SDX55 like devices. It provides the CPU with
>  	  frequencies above 1GHz.
> -	  Say Y if you want to support higher CPU frequencies on SDX55
> +	  Say Y if you want to support higher CPU frequencies on SDX55 like

Say Y if you want to support higher CPU frequencies on devices such as SDX55 and
SDX65.

Thanks,
Mani

>  	  devices.
>  
>  config QCOM_CLK_APCS_MSM8916
> diff --git a/drivers/clk/qcom/a7-pll.c b/drivers/clk/qcom/a7-pll.c
> index c4a53e5..adb2121 100644
> --- a/drivers/clk/qcom/a7-pll.c
> +++ b/drivers/clk/qcom/a7-pll.c
> @@ -84,6 +84,7 @@ static int qcom_a7pll_probe(struct platform_device *pdev)
>  
>  static const struct of_device_id qcom_a7pll_match_table[] = {
>  	{ .compatible = "qcom,sdx55-a7pll" },
> +	{ .compatible = "qcom,sdx65-a7pll" },
>  	{ }
>  };
>  MODULE_DEVICE_TABLE(of, qcom_a7pll_match_table);
> -- 
> 2.7.4
>