linux-kernel - Re: [PATCH 6/7] cpufreq: qcom-hw: Add cpufreq support for SM8250 SoC

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Message-ID: <20200908152217.GO3715@yoga>
Date:   Tue, 8 Sep 2020 10:22:17 -0500
From:   Bjorn Andersson <bjorn.andersson@...aro.org>
To:     Manivannan Sadhasivam <manivannan.sadhasivam@...aro.org>
Cc:     rjw@...ysocki.net, viresh.kumar@...aro.org, robh+dt@...nel.org,
        agross@...nel.org, amitk@...nel.org, linux-pm@...r.kernel.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-arm-msm@...r.kernel.org, dmitry.baryshkov@...aro.org,
        tdas@...eaurora.org
Subject: Re: [PATCH 6/7] cpufreq: qcom-hw: Add cpufreq support for SM8250 SoC

On Tue 08 Sep 02:57 CDT 2020, Manivannan Sadhasivam wrote:

> SM8250 SoC uses EPSS block for carrying out the cpufreq duties. Hence, add
> support for it in the driver with relevant of_match data.
> 
> Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@...aro.org>

Reviewed-by: Bjorn Andersson <bjorn.andersson@...aro.org>

> ---
>  drivers/cpufreq/qcom-cpufreq-hw.c | 9 +++++++++
>  1 file changed, 9 insertions(+)
> 
> diff --git a/drivers/cpufreq/qcom-cpufreq-hw.c b/drivers/cpufreq/qcom-cpufreq-hw.c
> index de816bcafd33..c3c397cc3dc6 100644
> --- a/drivers/cpufreq/qcom-cpufreq-hw.c
> +++ b/drivers/cpufreq/qcom-cpufreq-hw.c
> @@ -285,8 +285,17 @@ static const struct qcom_cpufreq_soc_data qcom_soc_data = {
>  	.lut_row_size = 32,
>  };
>  
> +static const struct qcom_cpufreq_soc_data sm8250_soc_data = {

Could it be that this is the "epss_soc_data" (i.e. not sm8250 specific)?
(We should still use/include the platform specific compatible though).

Regards,
Bjorn

> +	.reg_enable = 0x0,
> +	.reg_freq_lut = 0x100,
> +	.reg_volt_lut = 0x200,
> +	.reg_perf_state = 0x320,
> +	.lut_row_size = 4,
> +};
> +
>  static const struct of_device_id qcom_cpufreq_hw_match[] = {
>  	{ .compatible = "qcom,cpufreq-hw", .data = &qcom_soc_data },
> +	{ .compatible = "qcom,sm8250-epss", .data = &sm8250_soc_data },
>  	{}
>  };
>  MODULE_DEVICE_TABLE(of, qcom_cpufreq_hw_match);
> -- 
> 2.17.1
>