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[PATCH v4 1/7] net-next: stmmac: dwmac-mediatek: add platform level clocks management

Biao Huang posted 7 patches 4 years, 2 months ago
There is a newer version of this series
[PATCH v4 1/7] net-next: stmmac: dwmac-mediatek: add platform level clocks management
Posted by Biao Huang 4 years, 2 months ago 
This patch implements clks_config callback for dwmac-mediatek platform,
which could support platform level clocks management.

Signed-off-by: Biao Huang <biao.huang@mediatek.com>
---
 .../ethernet/stmicro/stmmac/dwmac-mediatek.c  | 24 ++++++++++++++-----
 1 file changed, 18 insertions(+), 6 deletions(-)

diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac-mediatek.c b/drivers/net/ethernet/stmicro/stmmac/dwmac-mediatek.c
index 58c0feaa8131..157ff655c85e 100644
--- a/drivers/net/ethernet/stmicro/stmmac/dwmac-mediatek.c
+++ b/drivers/net/ethernet/stmicro/stmmac/dwmac-mediatek.c
@@ -359,9 +359,6 @@ static int mediatek_dwmac_init(struct platform_device *pdev, void *priv)
 		return ret;
 	}
 
-	pm_runtime_enable(&pdev->dev);
-	pm_runtime_get_sync(&pdev->dev);
-
 	return 0;
 }
 
@@ -370,11 +367,25 @@ static void mediatek_dwmac_exit(struct platform_device *pdev, void *priv)
 	struct mediatek_dwmac_plat_data *plat = priv;
 
 	clk_bulk_disable_unprepare(plat->num_clks_to_config, plat->clks);
-
-	pm_runtime_put_sync(&pdev->dev);
-	pm_runtime_disable(&pdev->dev);
 }
 
+static int mediatek_dwmac_clks_config(void *priv, bool enabled)
+{
+	struct mediatek_dwmac_plat_data *plat = priv;
+	int ret = 0;
+
+	if (enabled) {
+		ret = clk_bulk_prepare_enable(plat->num_clks_to_config, plat->clks);
+		if (ret) {
+			dev_err(plat->dev, "failed to enable clks, err = %d\n", ret);
+			return ret;
+		}
+	} else {
+		clk_bulk_disable_unprepare(plat->num_clks_to_config, plat->clks);
+	}
+
+	return ret;
+}
 static int mediatek_dwmac_probe(struct platform_device *pdev)
 {
 	struct mediatek_dwmac_plat_data *priv_plat;
@@ -420,6 +431,7 @@ static int mediatek_dwmac_probe(struct platform_device *pdev)
 	plat_dat->bsp_priv = priv_plat;
 	plat_dat->init = mediatek_dwmac_init;
 	plat_dat->exit = mediatek_dwmac_exit;
+	plat_dat->clks_config = mediatek_dwmac_clks_config;
 	mediatek_dwmac_init(pdev, priv_plat);
 
 	ret = stmmac_dvr_probe(&pdev->dev, plat_dat, &stmmac_res);
-- 
2.25.1
Re: [PATCH v4 1/7] net-next: stmmac: dwmac-mediatek: add platform level clocks management
Posted by AngeloGioacchino Del Regno 4 years, 2 months ago 
Il 03/12/21 07:34, Biao Huang ha scritto:
> This patch implements clks_config callback for dwmac-mediatek platform,
> which could support platform level clocks management.
> 
> Signed-off-by: Biao Huang <biao.huang@mediatek.com>
> ---
>   .../ethernet/stmicro/stmmac/dwmac-mediatek.c  | 24 ++++++++++++++-----
>   1 file changed, 18 insertions(+), 6 deletions(-)
> 
> diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac-mediatek.c b/drivers/net/ethernet/stmicro/stmmac/dwmac-mediatek.c
> index 58c0feaa8131..157ff655c85e 100644
> --- a/drivers/net/ethernet/stmicro/stmmac/dwmac-mediatek.c
> +++ b/drivers/net/ethernet/stmicro/stmmac/dwmac-mediatek.c
> @@ -359,9 +359,6 @@ static int mediatek_dwmac_init(struct platform_device *pdev, void *priv)
>   		return ret;
>   	}
>   
> -	pm_runtime_enable(&pdev->dev);
> -	pm_runtime_get_sync(&pdev->dev);
> -
>   	return 0;
>   }
>   
> @@ -370,11 +367,25 @@ static void mediatek_dwmac_exit(struct platform_device *pdev, void *priv)
>   	struct mediatek_dwmac_plat_data *plat = priv;
>   
>   	clk_bulk_disable_unprepare(plat->num_clks_to_config, plat->clks);
> -
> -	pm_runtime_put_sync(&pdev->dev);
> -	pm_runtime_disable(&pdev->dev);
>   }
>   
> +static int mediatek_dwmac_clks_config(void *priv, bool enabled)
> +{
> +	struct mediatek_dwmac_plat_data *plat = priv;
> +	int ret = 0;
> +
> +	if (enabled) {
> +		ret = clk_bulk_prepare_enable(plat->num_clks_to_config, plat->clks);
> +		if (ret) {
> +			dev_err(plat->dev, "failed to enable clks, err = %d\n", ret);
> +			return ret;
> +		}
> +	} else {
> +		clk_bulk_disable_unprepare(plat->num_clks_to_config, plat->clks);
> +	}
> +
> +	return ret;
> +}
>   static int mediatek_dwmac_probe(struct platform_device *pdev)
>   {
>   	struct mediatek_dwmac_plat_data *priv_plat;
> @@ -420,6 +431,7 @@ static int mediatek_dwmac_probe(struct platform_device *pdev)
>   	plat_dat->bsp_priv = priv_plat;
>   	plat_dat->init = mediatek_dwmac_init;
>   	plat_dat->exit = mediatek_dwmac_exit;
> +	plat_dat->clks_config = mediatek_dwmac_clks_config;
>   	mediatek_dwmac_init(pdev, priv_plat);
>   
>   	ret = stmmac_dvr_probe(&pdev->dev, plat_dat, &stmmac_res);
> 

Hello Biao,

you're removing all calls to pm_runtime_* functions, so there is no more reason
to include linux/pm_runtime.h in this file: please also remove the inclusion.

Thanks!
Re: [PATCH v4 1/7] net-next: stmmac: dwmac-mediatek: add platform level clocks management
Posted by Biao Huang 4 years, 2 months ago 
Dear Angelo,
	Thanks for your comments~

On Mon, 2021-12-06 at 16:14 +0100, AngeloGioacchino Del Regno wrote:
> Il 03/12/21 07:34, Biao Huang ha scritto:
> > This patch implements clks_config callback for dwmac-mediatek
> > platform,
> > which could support platform level clocks management.
> > 
> > Signed-off-by: Biao Huang <biao.huang@mediatek.com>
> > ---
> >   .../ethernet/stmicro/stmmac/dwmac-mediatek.c  | 24
> > ++++++++++++++-----
> >   1 file changed, 18 insertions(+), 6 deletions(-)
> > 
> > diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac-mediatek.c
> > b/drivers/net/ethernet/stmicro/stmmac/dwmac-mediatek.c
> > index 58c0feaa8131..157ff655c85e 100644
> > --- a/drivers/net/ethernet/stmicro/stmmac/dwmac-mediatek.c
> > +++ b/drivers/net/ethernet/stmicro/stmmac/dwmac-mediatek.c
> > @@ -359,9 +359,6 @@ static int mediatek_dwmac_init(struct
> > platform_device *pdev, void *priv)
> >   		return ret;
> >   	}
> >   
> > -	pm_runtime_enable(&pdev->dev);
> > -	pm_runtime_get_sync(&pdev->dev);
> > -
> >   	return 0;
> >   }
> >   
> > @@ -370,11 +367,25 @@ static void mediatek_dwmac_exit(struct
> > platform_device *pdev, void *priv)
> >   	struct mediatek_dwmac_plat_data *plat = priv;
> >   
> >   	clk_bulk_disable_unprepare(plat->num_clks_to_config, plat-
> > >clks);
> > -
> > -	pm_runtime_put_sync(&pdev->dev);
> > -	pm_runtime_disable(&pdev->dev);
> >   }
> >   
> > +static int mediatek_dwmac_clks_config(void *priv, bool enabled)
> > +{
> > +	struct mediatek_dwmac_plat_data *plat = priv;
> > +	int ret = 0;
> > +
> > +	if (enabled) {
> > +		ret = clk_bulk_prepare_enable(plat->num_clks_to_config, 
> > plat->clks);
> > +		if (ret) {
> > +			dev_err(plat->dev, "failed to enable clks, err
> > = %d\n", ret);
> > +			return ret;
> > +		}
> > +	} else {
> > +		clk_bulk_disable_unprepare(plat->num_clks_to_config,
> > plat->clks);
> > +	}
> > +
> > +	return ret;
> > +}
> >   static int mediatek_dwmac_probe(struct platform_device *pdev)
> >   {
> >   	struct mediatek_dwmac_plat_data *priv_plat;
> > @@ -420,6 +431,7 @@ static int mediatek_dwmac_probe(struct
> > platform_device *pdev)
> >   	plat_dat->bsp_priv = priv_plat;
> >   	plat_dat->init = mediatek_dwmac_init;
> >   	plat_dat->exit = mediatek_dwmac_exit;
> > +	plat_dat->clks_config = mediatek_dwmac_clks_config;
> >   	mediatek_dwmac_init(pdev, priv_plat);
> >   
> >   	ret = stmmac_dvr_probe(&pdev->dev, plat_dat, &stmmac_res);
> > 
> 
> Hello Biao,
> 
> you're removing all calls to pm_runtime_* functions, so there is no
> more reason
> to include linux/pm_runtime.h in this file: please also remove the
> inclusion.
> 
> Thanks!
Yes, I'll remove the inclusion in the next send.

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