linux-kernel - Re: [PATCH 10/11] PM / devfreq: imx8m-ddrc: remove imx8m_ddrc_get_dev

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Date:   Wed, 10 Mar 2021 01:22:05 +0900
From:   Chanwoo Choi <cwchoi00@...il.com>
To:     Dong Aisheng <aisheng.dong@....com>, linux-pm@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org
Cc:     dongas86@...il.com, kernel@...gutronix.de, shawnguo@...nel.org,
        linux-imx@....com, linux-kernel@...r.kernel.org,
        myungjoo.ham@...sung.com, kyungmin.park@...sung.com,
        cw00.choi@...sung.com, abel.vesa@....com
Subject: Re: [PATCH 10/11] PM / devfreq: imx8m-ddrc: remove
 imx8m_ddrc_get_dev_status

On 21. 3. 9. 오후 9:58, Dong Aisheng wrote:
> Current driver actually does not support simple ondemand governor
> as it's unable to provide device load information. So removing
> the unnecessary callback to avoid confusing.
> Right now the driver is using userspace governor by default.
> 
> Signed-off-by: Dong Aisheng <aisheng.dong@....com>
> ---
>   drivers/devfreq/imx8m-ddrc.c | 13 -------------
>   1 file changed, 13 deletions(-)
> 
> diff --git a/drivers/devfreq/imx8m-ddrc.c b/drivers/devfreq/imx8m-ddrc.c
> index bc82d3653bff..0a6b7a1c829d 100644
> --- a/drivers/devfreq/imx8m-ddrc.c
> +++ b/drivers/devfreq/imx8m-ddrc.c
> @@ -280,18 +280,6 @@ static int imx8m_ddrc_get_cur_freq(struct device *dev, unsigned long *freq)
>   	return 0;
>   }
>   
> -static int imx8m_ddrc_get_dev_status(struct device *dev,
> -				     struct devfreq_dev_status *stat)
> -{
> -	struct imx8m_ddrc *priv = dev_get_drvdata(dev);
> -
> -	stat->busy_time = 0;
> -	stat->total_time = 0;
> -	stat->current_frequency = clk_get_rate(priv->dram_core);
> -
> -	return 0;
> -}
> -
>   static int imx8m_ddrc_init_freq_info(struct device *dev)
>   {
>   	struct imx8m_ddrc *priv = dev_get_drvdata(dev);
> @@ -431,7 +419,6 @@ static int imx8m_ddrc_probe(struct platform_device *pdev)
>   
>   	priv->profile.polling_ms = 1000;
>   	priv->profile.target = imx8m_ddrc_target;
> -	priv->profile.get_dev_status = imx8m_ddrc_get_dev_status;
>   	priv->profile.exit = imx8m_ddrc_exit;
>   	priv->profile.get_cur_freq = imx8m_ddrc_get_cur_freq;
>   	priv->profile.initial_freq = clk_get_rate(priv->dram_core);
> 

Acked-by: Chanwoo Choi <cw00.choi@...sung.com>

Will merge this patch after finishing the discussion of
prev patch related to.get_dev_status.

-- 
Best Regards,
Samsung Electronics
Chanwoo Choi