diff mbox series

[v5,1/1] watchdog: imx7ulp_wdt: move post_rcs_wait into struct imx_wdt_hw_feature

Message ID 20240730145610.2177627-1-Frank.Li@nxp.com
State New
Headers show
Series [v5,1/1] watchdog: imx7ulp_wdt: move post_rcs_wait into struct imx_wdt_hw_feature | expand

Commit Message

Frank Li July 30, 2024, 2:56 p.m. UTC
Move post_rcs_wait into struct imx_wdt_hw_feature to simple code logic for
difference compatible string.

i.MX93 watchdog needn't wait 2.5 clocks after RCS is done. So needn't set
post_rcs_wait.

Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Alice Guo <alice.guo@nxp.com>
Reviewed-by: Ye Li <ye.li@nxp.com>
Signed-off-by: Frank Li <Frank.Li@nxp.com>
---
Change from v4 to v5
- move compatible string 8ulp under 7ulp
Chagne from v3 to v4:
- Go back to v2 according to Guenter's feedback
Change from v2 to v3:
- Set post_rcs_wait to false explicitly to maintain code consistency
- Add Guenter review tag.
Change from v1 to v2:
- Combine to one patch
---
 drivers/watchdog/imx7ulp_wdt.c | 21 +++++++++------------
 1 file changed, 9 insertions(+), 12 deletions(-)

Comments

Frank Li Aug. 29, 2024, 10 p.m. UTC | #1
On Tue, Jul 30, 2024 at 10:56:10AM -0400, Frank Li wrote:
> Move post_rcs_wait into struct imx_wdt_hw_feature to simple code logic for
> difference compatible string.
>
> i.MX93 watchdog needn't wait 2.5 clocks after RCS is done. So needn't set
> post_rcs_wait.
>
> Reviewed-by: Guenter Roeck <linux@roeck-us.net>
> Signed-off-by: Alice Guo <alice.guo@nxp.com>
> Reviewed-by: Ye Li <ye.li@nxp.com>
> Signed-off-by: Frank Li <Frank.Li@nxp.com>
> ---

Ping?

Frank

> Change from v4 to v5
> - move compatible string 8ulp under 7ulp
> Chagne from v3 to v4:
> - Go back to v2 according to Guenter's feedback
> Change from v2 to v3:
> - Set post_rcs_wait to false explicitly to maintain code consistency
> - Add Guenter review tag.
> Change from v1 to v2:
> - Combine to one patch
> ---
>  drivers/watchdog/imx7ulp_wdt.c | 21 +++++++++------------
>  1 file changed, 9 insertions(+), 12 deletions(-)
>
> diff --git a/drivers/watchdog/imx7ulp_wdt.c b/drivers/watchdog/imx7ulp_wdt.c
> index 94914a22daff7..0f13a30533574 100644
> --- a/drivers/watchdog/imx7ulp_wdt.c
> +++ b/drivers/watchdog/imx7ulp_wdt.c
> @@ -55,6 +55,7 @@ MODULE_PARM_DESC(nowayout, "Watchdog cannot be stopped once started (default="
>
>  struct imx_wdt_hw_feature {
>  	bool prescaler_enable;
> +	bool post_rcs_wait;
>  	u32 wdog_clock_rate;
>  };
>
> @@ -62,7 +63,6 @@ struct imx7ulp_wdt_device {
>  	struct watchdog_device wdd;
>  	void __iomem *base;
>  	struct clk *clk;
> -	bool post_rcs_wait;
>  	bool ext_reset;
>  	const struct imx_wdt_hw_feature *hw;
>  };
> @@ -95,7 +95,7 @@ static int imx7ulp_wdt_wait_rcs(struct imx7ulp_wdt_device *wdt)
>  		ret = -ETIMEDOUT;
>
>  	/* Wait 2.5 clocks after RCS done */
> -	if (wdt->post_rcs_wait)
> +	if (wdt->hw->post_rcs_wait)
>  		usleep_range(wait_min, wait_min + 2000);
>
>  	return ret;
> @@ -334,15 +334,6 @@ static int imx7ulp_wdt_probe(struct platform_device *pdev)
>  	/* The WDOG may need to do external reset through dedicated pin */
>  	imx7ulp_wdt->ext_reset = of_property_read_bool(dev->of_node, "fsl,ext-reset-output");
>
> -	imx7ulp_wdt->post_rcs_wait = true;
> -	if (of_device_is_compatible(dev->of_node,
> -				    "fsl,imx8ulp-wdt")) {
> -		dev_info(dev, "imx8ulp wdt probe\n");
> -		imx7ulp_wdt->post_rcs_wait = false;
> -	} else {
> -		dev_info(dev, "imx7ulp wdt probe\n");
> -	}
> -
>  	wdog = &imx7ulp_wdt->wdd;
>  	wdog->info = &imx7ulp_wdt_info;
>  	wdog->ops = &imx7ulp_wdt_ops;
> @@ -403,6 +394,12 @@ static const struct dev_pm_ops imx7ulp_wdt_pm_ops = {
>  static const struct imx_wdt_hw_feature imx7ulp_wdt_hw = {
>  	.prescaler_enable = false,
>  	.wdog_clock_rate = 1000,
> +	.post_rcs_wait = true,
> +};
> +
> +static const struct imx_wdt_hw_feature imx8ulp_wdt_hw = {
> +	.prescaler_enable = false,
> +	.wdog_clock_rate = 1000,
>  };
>
>  static const struct imx_wdt_hw_feature imx93_wdt_hw = {
> @@ -411,8 +408,8 @@ static const struct imx_wdt_hw_feature imx93_wdt_hw = {
>  };
>
>  static const struct of_device_id imx7ulp_wdt_dt_ids[] = {
> -	{ .compatible = "fsl,imx8ulp-wdt", .data = &imx7ulp_wdt_hw, },
>  	{ .compatible = "fsl,imx7ulp-wdt", .data = &imx7ulp_wdt_hw, },
> +	{ .compatible = "fsl,imx8ulp-wdt", .data = &imx8ulp_wdt_hw, },
>  	{ .compatible = "fsl,imx93-wdt", .data = &imx93_wdt_hw, },
>  	{ /* sentinel */ }
>  };
> --
> 2.34.1
>
Frank Li Sept. 10, 2024, 7:28 p.m. UTC | #2
On Thu, Aug 29, 2024 at 06:00:51PM -0400, Frank Li wrote:
> On Tue, Jul 30, 2024 at 10:56:10AM -0400, Frank Li wrote:
> > Move post_rcs_wait into struct imx_wdt_hw_feature to simple code logic for
> > difference compatible string.
> >
> > i.MX93 watchdog needn't wait 2.5 clocks after RCS is done. So needn't set
> > post_rcs_wait.
> >
> > Reviewed-by: Guenter Roeck <linux@roeck-us.net>
> > Signed-off-by: Alice Guo <alice.guo@nxp.com>
> > Reviewed-by: Ye Li <ye.li@nxp.com>
> > Signed-off-by: Frank Li <Frank.Li@nxp.com>
> > ---

Wim Van Sebroeck:

	Could you please take care this patch?

Frank

>
> Ping?
>
> Frank
>
> > Change from v4 to v5
> > - move compatible string 8ulp under 7ulp
> > Chagne from v3 to v4:
> > - Go back to v2 according to Guenter's feedback
> > Change from v2 to v3:
> > - Set post_rcs_wait to false explicitly to maintain code consistency
> > - Add Guenter review tag.
> > Change from v1 to v2:
> > - Combine to one patch
> > ---
> >  drivers/watchdog/imx7ulp_wdt.c | 21 +++++++++------------
> >  1 file changed, 9 insertions(+), 12 deletions(-)
> >
> > diff --git a/drivers/watchdog/imx7ulp_wdt.c b/drivers/watchdog/imx7ulp_wdt.c
> > index 94914a22daff7..0f13a30533574 100644
> > --- a/drivers/watchdog/imx7ulp_wdt.c
> > +++ b/drivers/watchdog/imx7ulp_wdt.c
> > @@ -55,6 +55,7 @@ MODULE_PARM_DESC(nowayout, "Watchdog cannot be stopped once started (default="
> >
> >  struct imx_wdt_hw_feature {
> >  	bool prescaler_enable;
> > +	bool post_rcs_wait;
> >  	u32 wdog_clock_rate;
> >  };
> >
> > @@ -62,7 +63,6 @@ struct imx7ulp_wdt_device {
> >  	struct watchdog_device wdd;
> >  	void __iomem *base;
> >  	struct clk *clk;
> > -	bool post_rcs_wait;
> >  	bool ext_reset;
> >  	const struct imx_wdt_hw_feature *hw;
> >  };
> > @@ -95,7 +95,7 @@ static int imx7ulp_wdt_wait_rcs(struct imx7ulp_wdt_device *wdt)
> >  		ret = -ETIMEDOUT;
> >
> >  	/* Wait 2.5 clocks after RCS done */
> > -	if (wdt->post_rcs_wait)
> > +	if (wdt->hw->post_rcs_wait)
> >  		usleep_range(wait_min, wait_min + 2000);
> >
> >  	return ret;
> > @@ -334,15 +334,6 @@ static int imx7ulp_wdt_probe(struct platform_device *pdev)
> >  	/* The WDOG may need to do external reset through dedicated pin */
> >  	imx7ulp_wdt->ext_reset = of_property_read_bool(dev->of_node, "fsl,ext-reset-output");
> >
> > -	imx7ulp_wdt->post_rcs_wait = true;
> > -	if (of_device_is_compatible(dev->of_node,
> > -				    "fsl,imx8ulp-wdt")) {
> > -		dev_info(dev, "imx8ulp wdt probe\n");
> > -		imx7ulp_wdt->post_rcs_wait = false;
> > -	} else {
> > -		dev_info(dev, "imx7ulp wdt probe\n");
> > -	}
> > -
> >  	wdog = &imx7ulp_wdt->wdd;
> >  	wdog->info = &imx7ulp_wdt_info;
> >  	wdog->ops = &imx7ulp_wdt_ops;
> > @@ -403,6 +394,12 @@ static const struct dev_pm_ops imx7ulp_wdt_pm_ops = {
> >  static const struct imx_wdt_hw_feature imx7ulp_wdt_hw = {
> >  	.prescaler_enable = false,
> >  	.wdog_clock_rate = 1000,
> > +	.post_rcs_wait = true,
> > +};
> > +
> > +static const struct imx_wdt_hw_feature imx8ulp_wdt_hw = {
> > +	.prescaler_enable = false,
> > +	.wdog_clock_rate = 1000,
> >  };
> >
> >  static const struct imx_wdt_hw_feature imx93_wdt_hw = {
> > @@ -411,8 +408,8 @@ static const struct imx_wdt_hw_feature imx93_wdt_hw = {
> >  };
> >
> >  static const struct of_device_id imx7ulp_wdt_dt_ids[] = {
> > -	{ .compatible = "fsl,imx8ulp-wdt", .data = &imx7ulp_wdt_hw, },
> >  	{ .compatible = "fsl,imx7ulp-wdt", .data = &imx7ulp_wdt_hw, },
> > +	{ .compatible = "fsl,imx8ulp-wdt", .data = &imx8ulp_wdt_hw, },
> >  	{ .compatible = "fsl,imx93-wdt", .data = &imx93_wdt_hw, },
> >  	{ /* sentinel */ }
> >  };
> > --
> > 2.34.1
> >
Wim Van Sebroeck Sept. 13, 2024, 8:32 a.m. UTC | #3
Hi Frank,

> On Thu, Aug 29, 2024 at 06:00:51PM -0400, Frank Li wrote:
> > On Tue, Jul 30, 2024 at 10:56:10AM -0400, Frank Li wrote:
> > > Move post_rcs_wait into struct imx_wdt_hw_feature to simple code logic for
> > > difference compatible string.
> > >
> > > i.MX93 watchdog needn't wait 2.5 clocks after RCS is done. So needn't set
> > > post_rcs_wait.
> > >
> > > Reviewed-by: Guenter Roeck <linux@roeck-us.net>
> > > Signed-off-by: Alice Guo <alice.guo@nxp.com>
> > > Reviewed-by: Ye Li <ye.li@nxp.com>
> > > Signed-off-by: Frank Li <Frank.Li@nxp.com>
> > > ---
> 
> Wim Van Sebroeck:
> 
> 	Could you please take care this patch?
> 

It's in Linux-watchdog-next since tuesday.

Kind regards,
Wim.
diff mbox series

Patch

diff --git a/drivers/watchdog/imx7ulp_wdt.c b/drivers/watchdog/imx7ulp_wdt.c
index 94914a22daff7..0f13a30533574 100644
--- a/drivers/watchdog/imx7ulp_wdt.c
+++ b/drivers/watchdog/imx7ulp_wdt.c
@@ -55,6 +55,7 @@  MODULE_PARM_DESC(nowayout, "Watchdog cannot be stopped once started (default="
 
 struct imx_wdt_hw_feature {
 	bool prescaler_enable;
+	bool post_rcs_wait;
 	u32 wdog_clock_rate;
 };
 
@@ -62,7 +63,6 @@  struct imx7ulp_wdt_device {
 	struct watchdog_device wdd;
 	void __iomem *base;
 	struct clk *clk;
-	bool post_rcs_wait;
 	bool ext_reset;
 	const struct imx_wdt_hw_feature *hw;
 };
@@ -95,7 +95,7 @@  static int imx7ulp_wdt_wait_rcs(struct imx7ulp_wdt_device *wdt)
 		ret = -ETIMEDOUT;
 
 	/* Wait 2.5 clocks after RCS done */
-	if (wdt->post_rcs_wait)
+	if (wdt->hw->post_rcs_wait)
 		usleep_range(wait_min, wait_min + 2000);
 
 	return ret;
@@ -334,15 +334,6 @@  static int imx7ulp_wdt_probe(struct platform_device *pdev)
 	/* The WDOG may need to do external reset through dedicated pin */
 	imx7ulp_wdt->ext_reset = of_property_read_bool(dev->of_node, "fsl,ext-reset-output");
 
-	imx7ulp_wdt->post_rcs_wait = true;
-	if (of_device_is_compatible(dev->of_node,
-				    "fsl,imx8ulp-wdt")) {
-		dev_info(dev, "imx8ulp wdt probe\n");
-		imx7ulp_wdt->post_rcs_wait = false;
-	} else {
-		dev_info(dev, "imx7ulp wdt probe\n");
-	}
-
 	wdog = &imx7ulp_wdt->wdd;
 	wdog->info = &imx7ulp_wdt_info;
 	wdog->ops = &imx7ulp_wdt_ops;
@@ -403,6 +394,12 @@  static const struct dev_pm_ops imx7ulp_wdt_pm_ops = {
 static const struct imx_wdt_hw_feature imx7ulp_wdt_hw = {
 	.prescaler_enable = false,
 	.wdog_clock_rate = 1000,
+	.post_rcs_wait = true,
+};
+
+static const struct imx_wdt_hw_feature imx8ulp_wdt_hw = {
+	.prescaler_enable = false,
+	.wdog_clock_rate = 1000,
 };
 
 static const struct imx_wdt_hw_feature imx93_wdt_hw = {
@@ -411,8 +408,8 @@  static const struct imx_wdt_hw_feature imx93_wdt_hw = {
 };
 
 static const struct of_device_id imx7ulp_wdt_dt_ids[] = {
-	{ .compatible = "fsl,imx8ulp-wdt", .data = &imx7ulp_wdt_hw, },
 	{ .compatible = "fsl,imx7ulp-wdt", .data = &imx7ulp_wdt_hw, },
+	{ .compatible = "fsl,imx8ulp-wdt", .data = &imx8ulp_wdt_hw, },
 	{ .compatible = "fsl,imx93-wdt", .data = &imx93_wdt_hw, },
 	{ /* sentinel */ }
 };