diff mbox series

[RESEND,1/4] backlight: aat2870: Use backlight helper

Message ID 20230106164856.1453819-2-steve@sk2.org (mailing list archive)
State Handled Elsewhere
Headers show
Series [RESEND,1/4] backlight: aat2870: Use backlight helper | expand

Commit Message

Stephen Kitt Jan. 6, 2023, 4:48 p.m. UTC
Instead of retrieving the backlight brightness in struct
backlight_properties manually, and then checking whether the backlight
should be on at all, use backlight_get_brightness() which does all
this and insulates this from future changes.

Signed-off-by: Stephen Kitt <steve@sk2.org>
---
 drivers/video/backlight/aat2870_bl.c | 7 +------
 1 file changed, 1 insertion(+), 6 deletions(-)

Comments

Daniel Vetter Jan. 6, 2023, 5:43 p.m. UTC | #1
On Fri, Jan 06, 2023 at 05:48:52PM +0100, Stephen Kitt wrote:
> Instead of retrieving the backlight brightness in struct
> backlight_properties manually, and then checking whether the backlight
> should be on at all, use backlight_get_brightness() which does all
> this and insulates this from future changes.
> 
> Signed-off-by: Stephen Kitt <steve@sk2.org>

Lee/Daniel, will you pick these up, or should I smash them all into
drm-misc-next for 6.3?

Stephen, I see to be missing 3/4 here, but maybe it'll show up.
-Daniel

> ---
>  drivers/video/backlight/aat2870_bl.c | 7 +------
>  1 file changed, 1 insertion(+), 6 deletions(-)
> 
> diff --git a/drivers/video/backlight/aat2870_bl.c b/drivers/video/backlight/aat2870_bl.c
> index a7af9adafad6..1cbb303e9c88 100644
> --- a/drivers/video/backlight/aat2870_bl.c
> +++ b/drivers/video/backlight/aat2870_bl.c
> @@ -59,7 +59,7 @@ static int aat2870_bl_update_status(struct backlight_device *bd)
>  	struct aat2870_bl_driver_data *aat2870_bl = bl_get_data(bd);
>  	struct aat2870_data *aat2870 =
>  			dev_get_drvdata(aat2870_bl->pdev->dev.parent);
> -	int brightness = bd->props.brightness;
> +	int brightness = backlight_get_brightness(bd);
>  	int ret;
>  
>  	if ((brightness < 0) || (bd->props.max_brightness < brightness)) {
> @@ -70,11 +70,6 @@ static int aat2870_bl_update_status(struct backlight_device *bd)
>  	dev_dbg(&bd->dev, "brightness=%d, power=%d, state=%d\n",
>  		 bd->props.brightness, bd->props.power, bd->props.state);
>  
> -	if ((bd->props.power != FB_BLANK_UNBLANK) ||
> -			(bd->props.state & BL_CORE_FBBLANK) ||
> -			(bd->props.state & BL_CORE_SUSPENDED))
> -		brightness = 0;
> -
>  	ret = aat2870->write(aat2870, AAT2870_BLM,
>  			     (u8)aat2870_brightness(aat2870_bl, brightness));
>  	if (ret < 0)
> -- 
> 2.30.2
>
Sam Ravnborg Jan. 6, 2023, 5:44 p.m. UTC | #2
Hi Stephen,

On Fri, Jan 06, 2023 at 05:48:52PM +0100, Stephen Kitt wrote:
> Instead of retrieving the backlight brightness in struct
> backlight_properties manually, and then checking whether the backlight
> should be on at all, use backlight_get_brightness() which does all
> this and insulates this from future changes.
> 
> Signed-off-by: Stephen Kitt <steve@sk2.org>
Nice cleanup.
Reviewed-by: Sam Ravnborg <sam@ravnborg.org>
> ---
>  drivers/video/backlight/aat2870_bl.c | 7 +------
>  1 file changed, 1 insertion(+), 6 deletions(-)
> 
> diff --git a/drivers/video/backlight/aat2870_bl.c b/drivers/video/backlight/aat2870_bl.c
> index a7af9adafad6..1cbb303e9c88 100644
> --- a/drivers/video/backlight/aat2870_bl.c
> +++ b/drivers/video/backlight/aat2870_bl.c
> @@ -59,7 +59,7 @@ static int aat2870_bl_update_status(struct backlight_device *bd)
>  	struct aat2870_bl_driver_data *aat2870_bl = bl_get_data(bd);
>  	struct aat2870_data *aat2870 =
>  			dev_get_drvdata(aat2870_bl->pdev->dev.parent);
> -	int brightness = bd->props.brightness;
> +	int brightness = backlight_get_brightness(bd);
>  	int ret;
>  
>  	if ((brightness < 0) || (bd->props.max_brightness < brightness)) {
> @@ -70,11 +70,6 @@ static int aat2870_bl_update_status(struct backlight_device *bd)
>  	dev_dbg(&bd->dev, "brightness=%d, power=%d, state=%d\n",
>  		 bd->props.brightness, bd->props.power, bd->props.state);
>  
> -	if ((bd->props.power != FB_BLANK_UNBLANK) ||
> -			(bd->props.state & BL_CORE_FBBLANK) ||
> -			(bd->props.state & BL_CORE_SUSPENDED))
> -		brightness = 0;
> -
>  	ret = aat2870->write(aat2870, AAT2870_BLM,
>  			     (u8)aat2870_brightness(aat2870_bl, brightness));
>  	if (ret < 0)
> -- 
> 2.30.2
Stephen Kitt Jan. 6, 2023, 8:26 p.m. UTC | #3
Hi Daniel,

On Fri, 6 Jan 2023 18:43:36 +0100, Daniel Vetter <daniel@ffwll.ch> wrote:
> On Fri, Jan 06, 2023 at 05:48:52PM +0100, Stephen Kitt wrote:
> > Instead of retrieving the backlight brightness in struct
> > backlight_properties manually, and then checking whether the backlight
> > should be on at all, use backlight_get_brightness() which does all
> > this and insulates this from future changes.
> > 
> > Signed-off-by: Stephen Kitt <steve@sk2.org>  
> 
> Lee/Daniel, will you pick these up, or should I smash them all into
> drm-misc-next for 6.3?
> 
> Stephen, I see to be missing 3/4 here, but maybe it'll show up.

It seems to have been delayed in transit, it showed up some time after all
the others on the mailing lists. If you haven’t got it yet I can resend it!

Regards,

Stephen
Daniel Thompson Jan. 9, 2023, 10:16 a.m. UTC | #4
On Fri, Jan 06, 2023 at 05:48:52PM +0100, Stephen Kitt wrote:
> Instead of retrieving the backlight brightness in struct
> backlight_properties manually, and then checking whether the backlight
> should be on at all, use backlight_get_brightness() which does all
> this and insulates this from future changes.
>
> Signed-off-by: Stephen Kitt <steve@sk2.org>

This RESEND seems to have dropped the Reviewed-By tags provided the
last time is was circulated:
https://lore.kernel.org/all/20220608143233.l5pbopafqc4n6uwq@maple.lan/

There's only four patches so I guess I can add them again so the tools
can pick them up.

Reviewed-by: Daniel Thompson <daniel.thompson@linaro.org>


Daniel.
Daniel Thompson Jan. 9, 2023, 10:27 a.m. UTC | #5
On Fri, Jan 06, 2023 at 06:43:36PM +0100, Daniel Vetter wrote:
> On Fri, Jan 06, 2023 at 05:48:52PM +0100, Stephen Kitt wrote:
> > Instead of retrieving the backlight brightness in struct
> > backlight_properties manually, and then checking whether the backlight
> > should be on at all, use backlight_get_brightness() which does all
> > this and insulates this from future changes.
> >
> > Signed-off-by: Stephen Kitt <steve@sk2.org>
>
> Lee/Daniel, will you pick these up, or should I smash them all into
> drm-misc-next for 6.3?

Outside of holiday, Lee usually hoovers up the backlight patches (and
negotiates about who merges what).


Daniel.


> > ---
> >  drivers/video/backlight/aat2870_bl.c | 7 +------
> >  1 file changed, 1 insertion(+), 6 deletions(-)
> >
> > diff --git a/drivers/video/backlight/aat2870_bl.c b/drivers/video/backlight/aat2870_bl.c
> > index a7af9adafad6..1cbb303e9c88 100644
> > --- a/drivers/video/backlight/aat2870_bl.c
> > +++ b/drivers/video/backlight/aat2870_bl.c
> > @@ -59,7 +59,7 @@ static int aat2870_bl_update_status(struct backlight_device *bd)
> >  	struct aat2870_bl_driver_data *aat2870_bl = bl_get_data(bd);
> >  	struct aat2870_data *aat2870 =
> >  			dev_get_drvdata(aat2870_bl->pdev->dev.parent);
> > -	int brightness = bd->props.brightness;
> > +	int brightness = backlight_get_brightness(bd);
> >  	int ret;
> >
> >  	if ((brightness < 0) || (bd->props.max_brightness < brightness)) {
> > @@ -70,11 +70,6 @@ static int aat2870_bl_update_status(struct backlight_device *bd)
> >  	dev_dbg(&bd->dev, "brightness=%d, power=%d, state=%d\n",
> >  		 bd->props.brightness, bd->props.power, bd->props.state);
> >
> > -	if ((bd->props.power != FB_BLANK_UNBLANK) ||
> > -			(bd->props.state & BL_CORE_FBBLANK) ||
> > -			(bd->props.state & BL_CORE_SUSPENDED))
> > -		brightness = 0;
> > -
> >  	ret = aat2870->write(aat2870, AAT2870_BLM,
> >  			     (u8)aat2870_brightness(aat2870_bl, brightness));
> >  	if (ret < 0)
> > --
> > 2.30.2
> >
>
> --
> Daniel Vetter
> Software Engineer, Intel Corporation
> http://blog.ffwll.ch
Lee Jones Jan. 9, 2023, 4:35 p.m. UTC | #6
On Mon, 09 Jan 2023, Daniel Thompson wrote:

> On Fri, Jan 06, 2023 at 06:43:36PM +0100, Daniel Vetter wrote:
> > On Fri, Jan 06, 2023 at 05:48:52PM +0100, Stephen Kitt wrote:
> > > Instead of retrieving the backlight brightness in struct
> > > backlight_properties manually, and then checking whether the backlight
> > > should be on at all, use backlight_get_brightness() which does all
> > > this and insulates this from future changes.
> > >
> > > Signed-off-by: Stephen Kitt <steve@sk2.org>
> >
> > Lee/Daniel, will you pick these up, or should I smash them all into
> > drm-misc-next for 6.3?
> 
> Outside of holiday, Lee usually hoovers up the backlight patches (and
> negotiates about who merges what).

Right, I'll collect these into the Backlight tree if there aren't any
build deps involved.  If there are, we'll need to devise a strategy
that will likely involve immutable branches.
Lee Jones Jan. 19, 2023, 9:41 p.m. UTC | #7
On Fri, 06 Jan 2023, Stephen Kitt wrote:

> Instead of retrieving the backlight brightness in struct
> backlight_properties manually, and then checking whether the backlight
> should be on at all, use backlight_get_brightness() which does all
> this and insulates this from future changes.
> 
> Signed-off-by: Stephen Kitt <steve@sk2.org>
> ---
>  drivers/video/backlight/aat2870_bl.c | 7 +------
>  1 file changed, 1 insertion(+), 6 deletions(-)

Applied, thanks
diff mbox series

Patch

diff --git a/drivers/video/backlight/aat2870_bl.c b/drivers/video/backlight/aat2870_bl.c
index a7af9adafad6..1cbb303e9c88 100644
--- a/drivers/video/backlight/aat2870_bl.c
+++ b/drivers/video/backlight/aat2870_bl.c
@@ -59,7 +59,7 @@  static int aat2870_bl_update_status(struct backlight_device *bd)
 	struct aat2870_bl_driver_data *aat2870_bl = bl_get_data(bd);
 	struct aat2870_data *aat2870 =
 			dev_get_drvdata(aat2870_bl->pdev->dev.parent);
-	int brightness = bd->props.brightness;
+	int brightness = backlight_get_brightness(bd);
 	int ret;
 
 	if ((brightness < 0) || (bd->props.max_brightness < brightness)) {
@@ -70,11 +70,6 @@  static int aat2870_bl_update_status(struct backlight_device *bd)
 	dev_dbg(&bd->dev, "brightness=%d, power=%d, state=%d\n",
 		 bd->props.brightness, bd->props.power, bd->props.state);
 
-	if ((bd->props.power != FB_BLANK_UNBLANK) ||
-			(bd->props.state & BL_CORE_FBBLANK) ||
-			(bd->props.state & BL_CORE_SUSPENDED))
-		brightness = 0;
-
 	ret = aat2870->write(aat2870, AAT2870_BLM,
 			     (u8)aat2870_brightness(aat2870_bl, brightness));
 	if (ret < 0)