diff mbox series

[v7,04/19] clk: mediatek: reset: Extract common drivers to update function

Message ID 20220519125527.18544-5-rex-bc.chen@mediatek.com (mailing list archive)
State New, archived
Headers show
Series Cleanup MediaTek clk reset drivers and support SoCs | expand

Commit Message

Rex-BC Chen (陳柏辰) May 19, 2022, 12:55 p.m. UTC 
To make drivers more clear and readable, we extract common code
within assert and deassert to mtk_reset_update_set_clr() and
mtk_reset_update().

Signed-off-by: Rex-BC Chen <rex-bc.chen@mediatek.com>
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
---
 drivers/clk/mediatek/reset.c | 38 +++++++++++++++++++++---------------
 1 file changed, 22 insertions(+), 16 deletions(-)

Comments

Nícolas F. R. A. Prado May 20, 2022, 2:55 p.m. UTC | #1 
On Thu, May 19, 2022 at 08:55:12PM +0800, Rex-BC Chen wrote:
> To make drivers more clear and readable, we extract common code
> within assert and deassert to mtk_reset_update_set_clr() and
> mtk_reset_update().
> 
> Signed-off-by: Rex-BC Chen <rex-bc.chen@mediatek.com>
> Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
> ---
>  drivers/clk/mediatek/reset.c | 38 +++++++++++++++++++++---------------
>  1 file changed, 22 insertions(+), 16 deletions(-)
> 
> diff --git a/drivers/clk/mediatek/reset.c b/drivers/clk/mediatek/reset.c
> index 5cbbcc22a4fc..22fa9f09752c 100644
> --- a/drivers/clk/mediatek/reset.c
> +++ b/drivers/clk/mediatek/reset.c
> @@ -12,24 +12,27 @@
>  
>  #include "reset.h"
>  
> -static int mtk_reset_assert(struct reset_controller_dev *rcdev,
> -			    unsigned long id)
> +static int mtk_reset_update(struct reset_controller_dev *rcdev,
> +			    unsigned long id, bool deassert)

I'd have called the bool 'assert', and then passed true on assert and false on
deassert, as I think that's slightly more intuitive, but that's just personal
preference. It's fine like this as well.

Thanks,
Nícolas

>  {
>  	struct mtk_reset *data = container_of(rcdev, struct mtk_reset, rcdev);
> +	unsigned int val = deassert ? 0 : ~0;
>  
>  	return regmap_update_bits(data->regmap,
>  				  data->regofs + ((id / 32) << 2),
> -				  BIT(id % 32), ~0);
> +				  BIT(id % 32), val);
> +}
> +
> +static int mtk_reset_assert(struct reset_controller_dev *rcdev,
> +			    unsigned long id)
> +{
> +	return mtk_reset_update(rcdev, id, false);
>  }
>  
>  static int mtk_reset_deassert(struct reset_controller_dev *rcdev,
>  			      unsigned long id)
>  {
> -	struct mtk_reset *data = container_of(rcdev, struct mtk_reset, rcdev);
> -
> -	return regmap_update_bits(data->regmap,
> -				  data->regofs + ((id / 32) << 2),
> -				  BIT(id % 32), 0);
> +	return mtk_reset_update(rcdev, id, true);
>  }
>  
>  static int mtk_reset(struct reset_controller_dev *rcdev, unsigned long id)
> @@ -43,24 +46,27 @@ static int mtk_reset(struct reset_controller_dev *rcdev, unsigned long id)
>  	return mtk_reset_deassert(rcdev, id);
>  }
>  
> -static int mtk_reset_assert_set_clr(struct reset_controller_dev *rcdev,
> -				    unsigned long id)
> +static int mtk_reset_update_set_clr(struct reset_controller_dev *rcdev,
> +				    unsigned long id, bool deassert)
>  {
>  	struct mtk_reset *data = container_of(rcdev, struct mtk_reset, rcdev);
> +	unsigned int deassert_ofs = deassert ? 0x4 : 0;
>  
>  	return regmap_write(data->regmap,
> -			    data->regofs + ((id / 32) << 4),
> +			    data->regofs + ((id / 32) << 4) + deassert_ofs,
>  			    BIT(id % 32));
>  }
>  
> +static int mtk_reset_assert_set_clr(struct reset_controller_dev *rcdev,
> +				    unsigned long id)
> +{
> +	return mtk_reset_update_set_clr(rcdev, id, false);
> +}
> +
>  static int mtk_reset_deassert_set_clr(struct reset_controller_dev *rcdev,
>  				      unsigned long id)
>  {
> -	struct mtk_reset *data = container_of(rcdev, struct mtk_reset, rcdev);
> -
> -	return regmap_write(data->regmap,
> -			    data->regofs + ((id / 32) << 4) + 0x4,
> -			    BIT(id % 32));
> +	return mtk_reset_update_set_clr(rcdev, id, true);
>  }
>  
>  static int mtk_reset_set_clr(struct reset_controller_dev *rcdev,
> -- 
> 2.18.0
> 
>
Rex-BC Chen (陳柏辰) May 23, 2022, 5:08 a.m. UTC | #2 
On Fri, 2022-05-20 at 10:55 -0400, Nícolas F. R. A. Prado wrote:
> On Thu, May 19, 2022 at 08:55:12PM +0800, Rex-BC Chen wrote:
> > To make drivers more clear and readable, we extract common code
> > within assert and deassert to mtk_reset_update_set_clr() and
> > mtk_reset_update().
> > 
> > Signed-off-by: Rex-BC Chen <rex-bc.chen@mediatek.com>
> > Reviewed-by: AngeloGioacchino Del Regno <
> > angelogioacchino.delregno@collabora.com>
> > ---
> >  drivers/clk/mediatek/reset.c | 38 +++++++++++++++++++++-----------
> > ----
> >  1 file changed, 22 insertions(+), 16 deletions(-)
> > 
> > diff --git a/drivers/clk/mediatek/reset.c
> > b/drivers/clk/mediatek/reset.c
> > index 5cbbcc22a4fc..22fa9f09752c 100644
> > --- a/drivers/clk/mediatek/reset.c
> > +++ b/drivers/clk/mediatek/reset.c
> > @@ -12,24 +12,27 @@
> >  
> >  #include "reset.h"
> >  
> > -static int mtk_reset_assert(struct reset_controller_dev *rcdev,
> > -			    unsigned long id)
> > +static int mtk_reset_update(struct reset_controller_dev *rcdev,
> > +			    unsigned long id, bool deassert)
> 
> I'd have called the bool 'assert', and then passed true on assert and
> false on
> deassert, as I think that's slightly more intuitive, but that's just
> personal
> preference. It's fine like this as well.
> 
> Thanks,
> Nícolas
> 

Hello Nícolas,

Thanks for your advice, but I think I will keep the original logic in
next version.

BRs,
Rex


> >  {
> >  	struct mtk_reset *data = container_of(rcdev, struct mtk_reset,
> > rcdev);
> > +	unsigned int val = deassert ? 0 : ~0;
> >  
> >  	return regmap_update_bits(data->regmap,
> >  				  data->regofs + ((id / 32) << 2),
> > -				  BIT(id % 32), ~0);
> > +				  BIT(id % 32), val);
> > +}
> > +
> > +static int mtk_reset_assert(struct reset_controller_dev *rcdev,
> > +			    unsigned long id)
> > +{
> > +	return mtk_reset_update(rcdev, id, false);
> >  }
> >  
> >  static int mtk_reset_deassert(struct reset_controller_dev *rcdev,
> >  			      unsigned long id)
> >  {
> > -	struct mtk_reset *data = container_of(rcdev, struct mtk_reset,
> > rcdev);
> > -
> > -	return regmap_update_bits(data->regmap,
> > -				  data->regofs + ((id / 32) << 2),
> > -				  BIT(id % 32), 0);
> > +	return mtk_reset_update(rcdev, id, true);
> >  }
> >  
> >  static int mtk_reset(struct reset_controller_dev *rcdev, unsigned
> > long id)
> > @@ -43,24 +46,27 @@ static int mtk_reset(struct
> > reset_controller_dev *rcdev, unsigned long id)
> >  	return mtk_reset_deassert(rcdev, id);
> >  }
> >  
> > -static int mtk_reset_assert_set_clr(struct reset_controller_dev
> > *rcdev,
> > -				    unsigned long id)
> > +static int mtk_reset_update_set_clr(struct reset_controller_dev
> > *rcdev,
> > +				    unsigned long id, bool deassert)
> >  {
> >  	struct mtk_reset *data = container_of(rcdev, struct mtk_reset,
> > rcdev);
> > +	unsigned int deassert_ofs = deassert ? 0x4 : 0;
> >  
> >  	return regmap_write(data->regmap,
> > -			    data->regofs + ((id / 32) << 4),
> > +			    data->regofs + ((id / 32) << 4) +
> > deassert_ofs,
> >  			    BIT(id % 32));
> >  }
> >  
> > +static int mtk_reset_assert_set_clr(struct reset_controller_dev
> > *rcdev,
> > +				    unsigned long id)
> > +{
> > +	return mtk_reset_update_set_clr(rcdev, id, false);
> > +}
> > +
> >  static int mtk_reset_deassert_set_clr(struct reset_controller_dev
> > *rcdev,
> >  				      unsigned long id)
> >  {
> > -	struct mtk_reset *data = container_of(rcdev, struct mtk_reset,
> > rcdev);
> > -
> > -	return regmap_write(data->regmap,
> > -			    data->regofs + ((id / 32) << 4) + 0x4,
> > -			    BIT(id % 32));
> > +	return mtk_reset_update_set_clr(rcdev, id, true);
> >  }
> >  
> >  static int mtk_reset_set_clr(struct reset_controller_dev *rcdev,
> > -- 
> > 2.18.0
> > 
> >
diff mbox series

Patch

diff --git a/drivers/clk/mediatek/reset.c b/drivers/clk/mediatek/reset.c
index 5cbbcc22a4fc..22fa9f09752c 100644
--- a/drivers/clk/mediatek/reset.c
+++ b/drivers/clk/mediatek/reset.c
@@ -12,24 +12,27 @@ 
 
 #include "reset.h"
 
-static int mtk_reset_assert(struct reset_controller_dev *rcdev,
-			    unsigned long id)
+static int mtk_reset_update(struct reset_controller_dev *rcdev,
+			    unsigned long id, bool deassert)
 {
 	struct mtk_reset *data = container_of(rcdev, struct mtk_reset, rcdev);
+	unsigned int val = deassert ? 0 : ~0;
 
 	return regmap_update_bits(data->regmap,
 				  data->regofs + ((id / 32) << 2),
-				  BIT(id % 32), ~0);
+				  BIT(id % 32), val);
+}
+
+static int mtk_reset_assert(struct reset_controller_dev *rcdev,
+			    unsigned long id)
+{
+	return mtk_reset_update(rcdev, id, false);
 }
 
 static int mtk_reset_deassert(struct reset_controller_dev *rcdev,
 			      unsigned long id)
 {
-	struct mtk_reset *data = container_of(rcdev, struct mtk_reset, rcdev);
-
-	return regmap_update_bits(data->regmap,
-				  data->regofs + ((id / 32) << 2),
-				  BIT(id % 32), 0);
+	return mtk_reset_update(rcdev, id, true);
 }
 
 static int mtk_reset(struct reset_controller_dev *rcdev, unsigned long id)
@@ -43,24 +46,27 @@  static int mtk_reset(struct reset_controller_dev *rcdev, unsigned long id)
 	return mtk_reset_deassert(rcdev, id);
 }
 
-static int mtk_reset_assert_set_clr(struct reset_controller_dev *rcdev,
-				    unsigned long id)
+static int mtk_reset_update_set_clr(struct reset_controller_dev *rcdev,
+				    unsigned long id, bool deassert)
 {
 	struct mtk_reset *data = container_of(rcdev, struct mtk_reset, rcdev);
+	unsigned int deassert_ofs = deassert ? 0x4 : 0;
 
 	return regmap_write(data->regmap,
-			    data->regofs + ((id / 32) << 4),
+			    data->regofs + ((id / 32) << 4) + deassert_ofs,
 			    BIT(id % 32));
 }
 
+static int mtk_reset_assert_set_clr(struct reset_controller_dev *rcdev,
+				    unsigned long id)
+{
+	return mtk_reset_update_set_clr(rcdev, id, false);
+}
+
 static int mtk_reset_deassert_set_clr(struct reset_controller_dev *rcdev,
 				      unsigned long id)
 {
-	struct mtk_reset *data = container_of(rcdev, struct mtk_reset, rcdev);
-
-	return regmap_write(data->regmap,
-			    data->regofs + ((id / 32) << 4) + 0x4,
-			    BIT(id % 32));
+	return mtk_reset_update_set_clr(rcdev, id, true);
 }
 
 static int mtk_reset_set_clr(struct reset_controller_dev *rcdev,