2023-01-06 17:44:37

by Stephen Kitt

Subject: [PATCH RESEND 4/4] backlight: tosa: Use backlight helper

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 <[email protected]>
---
drivers/video/backlight/tosa_bl.c | 7 +------
1 file changed, 1 insertion(+), 6 deletions(-)

diff --git a/drivers/video/backlight/tosa_bl.c b/drivers/video/backlight/tosa_bl.c
index 77b71f6c19b5..e338b1f00f6a 100644
--- a/drivers/video/backlight/tosa_bl.c
+++ b/drivers/video/backlight/tosa_bl.c
@@ -50,13 +50,8 @@ static void tosa_bl_set_backlight(struct tosa_bl_data *data, int brightness)

static int tosa_bl_update_status(struct backlight_device *dev)
{
- struct backlight_properties *props = &dev->props;
struct tosa_bl_data *data = bl_get_data(dev);
- int power = max(props->power, props->fb_blank);
- int brightness = props->brightness;
-
- if (power)
- brightness = 0;
+ int brightness = backlight_get_brightness(dev);

tosa_bl_set_backlight(data, brightness);

--
2.30.2

2023-01-06 17:54:25

by Sam Ravnborg

Subject: Re: [PATCH RESEND 4/4] backlight: tosa: Use backlight helper

On Fri, Jan 06, 2023 at 05:48:55PM +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 <[email protected]>
Reviewed-by: Sam Ravnborg <[email protected]>
> ---
> drivers/video/backlight/tosa_bl.c | 7 +------
> 1 file changed, 1 insertion(+), 6 deletions(-)
>
> diff --git a/drivers/video/backlight/tosa_bl.c b/drivers/video/backlight/tosa_bl.c
> index 77b71f6c19b5..e338b1f00f6a 100644
> --- a/drivers/video/backlight/tosa_bl.c
> +++ b/drivers/video/backlight/tosa_bl.c
> @@ -50,13 +50,8 @@ static void tosa_bl_set_backlight(struct tosa_bl_data *data, int brightness)
>
> static int tosa_bl_update_status(struct backlight_device *dev)
> {
> - struct backlight_properties *props = &dev->props;
> struct tosa_bl_data *data = bl_get_data(dev);
> - int power = max(props->power, props->fb_blank);
> - int brightness = props->brightness;
> -
> - if (power)
> - brightness = 0;
> + int brightness = backlight_get_brightness(dev);
>
> tosa_bl_set_backlight(data, brightness);
>
> --
> 2.30.2

2023-01-06 22:32:11

by Sam Ravnborg

Subject: Re: [PATCH RESEND 4/4] backlight: tosa: Use backlight helper

On Fri, Jan 06, 2023 at 05:48:55PM +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 <[email protected]>
I just realized...

This driver is about to be deleted by Arnd's effort to remove
the PXA platform, so the patch is not relevant and can be ignored.

See https://lore.kernel.org/dri-devel/[email protected]/

Sam

> ---
> drivers/video/backlight/tosa_bl.c | 7 +------
> 1 file changed, 1 insertion(+), 6 deletions(-)
>
> diff --git a/drivers/video/backlight/tosa_bl.c b/drivers/video/backlight/tosa_bl.c
> index 77b71f6c19b5..e338b1f00f6a 100644
> --- a/drivers/video/backlight/tosa_bl.c
> +++ b/drivers/video/backlight/tosa_bl.c
> @@ -50,13 +50,8 @@ static void tosa_bl_set_backlight(struct tosa_bl_data *data, int brightness)
>
> static int tosa_bl_update_status(struct backlight_device *dev)
> {
> - struct backlight_properties *props = &dev->props;
> struct tosa_bl_data *data = bl_get_data(dev);
> - int power = max(props->power, props->fb_blank);
> - int brightness = props->brightness;
> -
> - if (power)
> - brightness = 0;
> + int brightness = backlight_get_brightness(dev);
>
> tosa_bl_set_backlight(data, brightness);
>
> --
> 2.30.2

2023-01-09 10:49:21

by Daniel Thompson

Subject: Re: [PATCH RESEND 4/4] backlight: tosa: Use backlight helper

On Fri, Jan 06, 2023 at 05:48:55PM +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 <[email protected]>

For the tools:
Reviewed-by: Daniel Thompson <[email protected]>


D.