linux-kernel - Re: [PATCH v2 10/14] cpufreq: dt: Allow platform specific intermediate callbacks

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Message-ID: <20200219093526.hexyzhfuirb2lg4m@vireshk-i7>
Date:   Wed, 19 Feb 2020 15:05:26 +0530
From:   Viresh Kumar <viresh.kumar@...aro.org>
To:     peng.fan@....com
Cc:     shawnguo@...nel.org, s.hauer@...gutronix.de, sboyd@...nel.org,
        robh+dt@...nel.org, rjw@...ysocki.net, kernel@...gutronix.de,
        festevam@...il.com, linux-imx@....com, Anson.Huang@....com,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        abel.vesa@....com
Subject: Re: [PATCH v2 10/14] cpufreq: dt: Allow platform specific
 intermediate callbacks

On 19-02-20, 15:59, peng.fan@....com wrote:
> From: Peng Fan <peng.fan@....com>
> 
> Platforms may need to implement platform specific get_intermediate and
> target_intermediate hooks.
> 
> Update cpufreq-dt driver's platform data to contain those for such
> platforms.
> 
> Signed-off-by: Peng Fan <peng.fan@....com>
> ---
>  drivers/cpufreq/cpufreq-dt.c | 4 ++++
>  drivers/cpufreq/cpufreq-dt.h | 4 ++++
>  2 files changed, 8 insertions(+)
> 
> diff --git a/drivers/cpufreq/cpufreq-dt.c b/drivers/cpufreq/cpufreq-dt.c
> index d2b5f062a07b..26fe8dfb9ce6 100644
> --- a/drivers/cpufreq/cpufreq-dt.c
> +++ b/drivers/cpufreq/cpufreq-dt.c
> @@ -363,6 +363,10 @@ static int dt_cpufreq_probe(struct platform_device *pdev)
>  		dt_cpufreq_driver.resume = data->resume;
>  		if (data->suspend)
>  			dt_cpufreq_driver.suspend = data->suspend;
> +		if (data->get_intermediate) {
> +			dt_cpufreq_driver.target_intermediate = data->target_intermediate;
> +			dt_cpufreq_driver.get_intermediate = data->get_intermediate;
> +		}
>  	}
>  
>  	ret = cpufreq_register_driver(&dt_cpufreq_driver);
> diff --git a/drivers/cpufreq/cpufreq-dt.h b/drivers/cpufreq/cpufreq-dt.h
> index a5a45b547d0b..28c8af7ec5ef 100644
> --- a/drivers/cpufreq/cpufreq-dt.h
> +++ b/drivers/cpufreq/cpufreq-dt.h
> @@ -14,6 +14,10 @@ struct cpufreq_policy;
>  struct cpufreq_dt_platform_data {
>  	bool have_governor_per_policy;
>  
> +	unsigned int	(*get_intermediate)(struct cpufreq_policy *policy,
> +					    unsigned int index);
> +	int		(*target_intermediate)(struct cpufreq_policy *policy,
> +					       unsigned int index);

Who calls them ?

-- 
viresh