* [PATCH v2] drm: shmobile: Use backlight helper
@ 2022-06-16 17:08 ` Stephen Kitt
0 siblings, 0 replies; 8+ messages in thread
From: Stephen Kitt @ 2022-06-16 17:08 UTC (permalink / raw)
To: Laurent Pinchart, Kieran Bingham
Cc: Stephen Kitt, David Airlie, linux-kernel, dri-devel, linux-renesas-soc
This started with work on the removal of backlight_properties'
deprecated fb_blank field, much of which can be taken care of by using
helper functions provided by backlight.h instead of directly accessing
fields in backlight_properties. This patch series doesn't involve
fb_blank, but it still seems useful to use helper functions where
appropriate.
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>
Cc: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Cc: Kieran Bingham <kieran.bingham+renesas@ideasonboard.com>
Cc: David Airlie <airlied@linux.ie>
Cc: Daniel Vetter <daniel@ffwll.ch>
Cc: dri-devel@lists.freedesktop.org
---
Changes since v1: clarified commit message, this doesn't touch fb_blank
---
drivers/gpu/drm/shmobile/shmob_drm_backlight.c | 6 +-----
1 file changed, 1 insertion(+), 5 deletions(-)
diff --git a/drivers/gpu/drm/shmobile/shmob_drm_backlight.c b/drivers/gpu/drm/shmobile/shmob_drm_backlight.c
index f6628a5ee95f..794573badfe8 100644
--- a/drivers/gpu/drm/shmobile/shmob_drm_backlight.c
+++ b/drivers/gpu/drm/shmobile/shmob_drm_backlight.c
@@ -18,11 +18,7 @@ static int shmob_drm_backlight_update(struct backlight_device *bdev)
struct shmob_drm_connector *scon = bl_get_data(bdev);
struct shmob_drm_device *sdev = scon->connector.dev->dev_private;
const struct shmob_drm_backlight_data *bdata = &sdev->pdata->backlight;
- int brightness = bdev->props.brightness;
-
- if (bdev->props.power != FB_BLANK_UNBLANK ||
- bdev->props.state & BL_CORE_SUSPENDED)
- brightness = 0;
+ int brightness = backlight_get_brightness(bdev);
return bdata->set_brightness(brightness);
}
base-commit: f2906aa863381afb0015a9eb7fefad885d4e5a56
--
2.30.2
^ permalink raw reply related [flat|nested] 8+ messages in thread
* [PATCH v2] drm: shmobile: Use backlight helper
@ 2022-06-16 17:08 ` Stephen Kitt
0 siblings, 0 replies; 8+ messages in thread
From: Stephen Kitt @ 2022-06-16 17:08 UTC (permalink / raw)
To: Laurent Pinchart, Kieran Bingham
Cc: Stephen Kitt, David Airlie, Daniel Vetter, dri-devel,
linux-renesas-soc, linux-kernel
This started with work on the removal of backlight_properties'
deprecated fb_blank field, much of which can be taken care of by using
helper functions provided by backlight.h instead of directly accessing
fields in backlight_properties. This patch series doesn't involve
fb_blank, but it still seems useful to use helper functions where
appropriate.
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>
Cc: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Cc: Kieran Bingham <kieran.bingham+renesas@ideasonboard.com>
Cc: David Airlie <airlied@linux.ie>
Cc: Daniel Vetter <daniel@ffwll.ch>
Cc: dri-devel@lists.freedesktop.org
---
Changes since v1: clarified commit message, this doesn't touch fb_blank
---
drivers/gpu/drm/shmobile/shmob_drm_backlight.c | 6 +-----
1 file changed, 1 insertion(+), 5 deletions(-)
diff --git a/drivers/gpu/drm/shmobile/shmob_drm_backlight.c b/drivers/gpu/drm/shmobile/shmob_drm_backlight.c
index f6628a5ee95f..794573badfe8 100644
--- a/drivers/gpu/drm/shmobile/shmob_drm_backlight.c
+++ b/drivers/gpu/drm/shmobile/shmob_drm_backlight.c
@@ -18,11 +18,7 @@ static int shmob_drm_backlight_update(struct backlight_device *bdev)
struct shmob_drm_connector *scon = bl_get_data(bdev);
struct shmob_drm_device *sdev = scon->connector.dev->dev_private;
const struct shmob_drm_backlight_data *bdata = &sdev->pdata->backlight;
- int brightness = bdev->props.brightness;
-
- if (bdev->props.power != FB_BLANK_UNBLANK ||
- bdev->props.state & BL_CORE_SUSPENDED)
- brightness = 0;
+ int brightness = backlight_get_brightness(bdev);
return bdata->set_brightness(brightness);
}
base-commit: f2906aa863381afb0015a9eb7fefad885d4e5a56
--
2.30.2
^ permalink raw reply related [flat|nested] 8+ messages in thread
* Re: [PATCH v2] drm: shmobile: Use backlight helper
2022-06-16 17:08 ` Stephen Kitt
@ 2022-06-21 6:20 ` Laurent Pinchart
-1 siblings, 0 replies; 8+ messages in thread
From: Laurent Pinchart @ 2022-06-21 6:20 UTC (permalink / raw)
To: Stephen Kitt
Cc: Kieran Bingham, David Airlie, Daniel Vetter, dri-devel,
linux-renesas-soc, linux-kernel
Hi Stephen,
Thank you for the patch.
On Thu, Jun 16, 2022 at 07:08:21PM +0200, Stephen Kitt wrote:
> This started with work on the removal of backlight_properties'
> deprecated fb_blank field, much of which can be taken care of by using
> helper functions provided by backlight.h instead of directly accessing
> fields in backlight_properties. This patch series doesn't involve
> fb_blank, but it still seems useful to use helper functions where
> appropriate.
>
> 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>
> Cc: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
> Cc: Kieran Bingham <kieran.bingham+renesas@ideasonboard.com>
> Cc: David Airlie <airlied@linux.ie>
> Cc: Daniel Vetter <daniel@ffwll.ch>
> Cc: dri-devel@lists.freedesktop.org
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
> ---
> Changes since v1: clarified commit message, this doesn't touch fb_blank
> ---
> drivers/gpu/drm/shmobile/shmob_drm_backlight.c | 6 +-----
> 1 file changed, 1 insertion(+), 5 deletions(-)
>
> diff --git a/drivers/gpu/drm/shmobile/shmob_drm_backlight.c b/drivers/gpu/drm/shmobile/shmob_drm_backlight.c
> index f6628a5ee95f..794573badfe8 100644
> --- a/drivers/gpu/drm/shmobile/shmob_drm_backlight.c
> +++ b/drivers/gpu/drm/shmobile/shmob_drm_backlight.c
> @@ -18,11 +18,7 @@ static int shmob_drm_backlight_update(struct backlight_device *bdev)
> struct shmob_drm_connector *scon = bl_get_data(bdev);
> struct shmob_drm_device *sdev = scon->connector.dev->dev_private;
> const struct shmob_drm_backlight_data *bdata = &sdev->pdata->backlight;
> - int brightness = bdev->props.brightness;
> -
> - if (bdev->props.power != FB_BLANK_UNBLANK ||
> - bdev->props.state & BL_CORE_SUSPENDED)
> - brightness = 0;
> + int brightness = backlight_get_brightness(bdev);
>
> return bdata->set_brightness(brightness);
> }
>
> base-commit: f2906aa863381afb0015a9eb7fefad885d4e5a56
--
Regards,
Laurent Pinchart
^ permalink raw reply [flat|nested] 8+ messages in thread
* Re: [PATCH v2] drm: shmobile: Use backlight helper
@ 2022-06-21 6:20 ` Laurent Pinchart
0 siblings, 0 replies; 8+ messages in thread
From: Laurent Pinchart @ 2022-06-21 6:20 UTC (permalink / raw)
To: Stephen Kitt
Cc: David Airlie, linux-kernel, dri-devel, linux-renesas-soc, Kieran Bingham
Hi Stephen,
Thank you for the patch.
On Thu, Jun 16, 2022 at 07:08:21PM +0200, Stephen Kitt wrote:
> This started with work on the removal of backlight_properties'
> deprecated fb_blank field, much of which can be taken care of by using
> helper functions provided by backlight.h instead of directly accessing
> fields in backlight_properties. This patch series doesn't involve
> fb_blank, but it still seems useful to use helper functions where
> appropriate.
>
> 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>
> Cc: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
> Cc: Kieran Bingham <kieran.bingham+renesas@ideasonboard.com>
> Cc: David Airlie <airlied@linux.ie>
> Cc: Daniel Vetter <daniel@ffwll.ch>
> Cc: dri-devel@lists.freedesktop.org
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
> ---
> Changes since v1: clarified commit message, this doesn't touch fb_blank
> ---
> drivers/gpu/drm/shmobile/shmob_drm_backlight.c | 6 +-----
> 1 file changed, 1 insertion(+), 5 deletions(-)
>
> diff --git a/drivers/gpu/drm/shmobile/shmob_drm_backlight.c b/drivers/gpu/drm/shmobile/shmob_drm_backlight.c
> index f6628a5ee95f..794573badfe8 100644
> --- a/drivers/gpu/drm/shmobile/shmob_drm_backlight.c
> +++ b/drivers/gpu/drm/shmobile/shmob_drm_backlight.c
> @@ -18,11 +18,7 @@ static int shmob_drm_backlight_update(struct backlight_device *bdev)
> struct shmob_drm_connector *scon = bl_get_data(bdev);
> struct shmob_drm_device *sdev = scon->connector.dev->dev_private;
> const struct shmob_drm_backlight_data *bdata = &sdev->pdata->backlight;
> - int brightness = bdev->props.brightness;
> -
> - if (bdev->props.power != FB_BLANK_UNBLANK ||
> - bdev->props.state & BL_CORE_SUSPENDED)
> - brightness = 0;
> + int brightness = backlight_get_brightness(bdev);
>
> return bdata->set_brightness(brightness);
> }
>
> base-commit: f2906aa863381afb0015a9eb7fefad885d4e5a56
--
Regards,
Laurent Pinchart
^ permalink raw reply [flat|nested] 8+ messages in thread
* Re: [PATCH v2] drm: shmobile: Use backlight helper
2022-06-16 17:08 ` Stephen Kitt
@ 2022-06-21 12:58 ` Kieran Bingham
-1 siblings, 0 replies; 8+ messages in thread
From: Kieran Bingham @ 2022-06-21 12:58 UTC (permalink / raw)
To: Laurent Pinchart, Stephen Kitt
Cc: Stephen Kitt, David Airlie, Daniel Vetter, dri-devel,
linux-renesas-soc, linux-kernel
Quoting Stephen Kitt (2022-06-16 18:08:21)
> This started with work on the removal of backlight_properties'
> deprecated fb_blank field, much of which can be taken care of by using
> helper functions provided by backlight.h instead of directly accessing
> fields in backlight_properties. This patch series doesn't involve
> fb_blank, but it still seems useful to use helper functions where
> appropriate.
>
> 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>
> Cc: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
> Cc: Kieran Bingham <kieran.bingham+renesas@ideasonboard.com>
Hi Stephen,
This looks reasonable to me too.
Reviewed-by: Kieran Bingham <kieran.bingham+renesas@ideasonboard.com>
> Cc: David Airlie <airlied@linux.ie>
> Cc: Daniel Vetter <daniel@ffwll.ch>
> Cc: dri-devel@lists.freedesktop.org
> ---
> Changes since v1: clarified commit message, this doesn't touch fb_blank
> ---
> drivers/gpu/drm/shmobile/shmob_drm_backlight.c | 6 +-----
> 1 file changed, 1 insertion(+), 5 deletions(-)
>
> diff --git a/drivers/gpu/drm/shmobile/shmob_drm_backlight.c b/drivers/gpu/drm/shmobile/shmob_drm_backlight.c
> index f6628a5ee95f..794573badfe8 100644
> --- a/drivers/gpu/drm/shmobile/shmob_drm_backlight.c
> +++ b/drivers/gpu/drm/shmobile/shmob_drm_backlight.c
> @@ -18,11 +18,7 @@ static int shmob_drm_backlight_update(struct backlight_device *bdev)
> struct shmob_drm_connector *scon = bl_get_data(bdev);
> struct shmob_drm_device *sdev = scon->connector.dev->dev_private;
> const struct shmob_drm_backlight_data *bdata = &sdev->pdata->backlight;
> - int brightness = bdev->props.brightness;
> -
> - if (bdev->props.power != FB_BLANK_UNBLANK ||
> - bdev->props.state & BL_CORE_SUSPENDED)
> - brightness = 0;
> + int brightness = backlight_get_brightness(bdev);
>
> return bdata->set_brightness(brightness);
> }
>
> base-commit: f2906aa863381afb0015a9eb7fefad885d4e5a56
> --
> 2.30.2
>
^ permalink raw reply [flat|nested] 8+ messages in thread
* Re: [PATCH v2] drm: shmobile: Use backlight helper
@ 2022-06-21 12:58 ` Kieran Bingham
0 siblings, 0 replies; 8+ messages in thread
From: Kieran Bingham @ 2022-06-21 12:58 UTC (permalink / raw)
To: Laurent Pinchart, Stephen Kitt
Cc: Stephen Kitt, David Airlie, linux-kernel, dri-devel, linux-renesas-soc
Quoting Stephen Kitt (2022-06-16 18:08:21)
> This started with work on the removal of backlight_properties'
> deprecated fb_blank field, much of which can be taken care of by using
> helper functions provided by backlight.h instead of directly accessing
> fields in backlight_properties. This patch series doesn't involve
> fb_blank, but it still seems useful to use helper functions where
> appropriate.
>
> 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>
> Cc: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
> Cc: Kieran Bingham <kieran.bingham+renesas@ideasonboard.com>
Hi Stephen,
This looks reasonable to me too.
Reviewed-by: Kieran Bingham <kieran.bingham+renesas@ideasonboard.com>
> Cc: David Airlie <airlied@linux.ie>
> Cc: Daniel Vetter <daniel@ffwll.ch>
> Cc: dri-devel@lists.freedesktop.org
> ---
> Changes since v1: clarified commit message, this doesn't touch fb_blank
> ---
> drivers/gpu/drm/shmobile/shmob_drm_backlight.c | 6 +-----
> 1 file changed, 1 insertion(+), 5 deletions(-)
>
> diff --git a/drivers/gpu/drm/shmobile/shmob_drm_backlight.c b/drivers/gpu/drm/shmobile/shmob_drm_backlight.c
> index f6628a5ee95f..794573badfe8 100644
> --- a/drivers/gpu/drm/shmobile/shmob_drm_backlight.c
> +++ b/drivers/gpu/drm/shmobile/shmob_drm_backlight.c
> @@ -18,11 +18,7 @@ static int shmob_drm_backlight_update(struct backlight_device *bdev)
> struct shmob_drm_connector *scon = bl_get_data(bdev);
> struct shmob_drm_device *sdev = scon->connector.dev->dev_private;
> const struct shmob_drm_backlight_data *bdata = &sdev->pdata->backlight;
> - int brightness = bdev->props.brightness;
> -
> - if (bdev->props.power != FB_BLANK_UNBLANK ||
> - bdev->props.state & BL_CORE_SUSPENDED)
> - brightness = 0;
> + int brightness = backlight_get_brightness(bdev);
>
> return bdata->set_brightness(brightness);
> }
>
> base-commit: f2906aa863381afb0015a9eb7fefad885d4e5a56
> --
> 2.30.2
>
^ permalink raw reply [flat|nested] 8+ messages in thread
* Re: [PATCH v2] drm: shmobile: Use backlight helper
2022-06-16 17:08 ` Stephen Kitt
@ 2022-06-24 19:47 ` Sam Ravnborg
-1 siblings, 0 replies; 8+ messages in thread
From: Sam Ravnborg @ 2022-06-24 19:47 UTC (permalink / raw)
To: Stephen Kitt
Cc: Laurent Pinchart, Kieran Bingham, David Airlie, linux-kernel,
dri-devel, linux-renesas-soc
On Thu, Jun 16, 2022 at 07:08:21PM +0200, Stephen Kitt wrote:
> This started with work on the removal of backlight_properties'
> deprecated fb_blank field, much of which can be taken care of by using
> helper functions provided by backlight.h instead of directly accessing
> fields in backlight_properties. This patch series doesn't involve
> fb_blank, but it still seems useful to use helper functions where
> appropriate.
>
> 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>
> Cc: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
> Cc: Kieran Bingham <kieran.bingham+renesas@ideasonboard.com>
> Cc: David Airlie <airlied@linux.ie>
> Cc: Daniel Vetter <daniel@ffwll.ch>
> Cc: dri-devel@lists.freedesktop.org
Thanks, added to drm-misc (drm-misc-next)
Sam
^ permalink raw reply [flat|nested] 8+ messages in thread
* Re: [PATCH v2] drm: shmobile: Use backlight helper
@ 2022-06-24 19:47 ` Sam Ravnborg
0 siblings, 0 replies; 8+ messages in thread
From: Sam Ravnborg @ 2022-06-24 19:47 UTC (permalink / raw)
To: Stephen Kitt
Cc: David Airlie, linux-kernel, dri-devel, linux-renesas-soc,
Kieran Bingham, Laurent Pinchart
On Thu, Jun 16, 2022 at 07:08:21PM +0200, Stephen Kitt wrote:
> This started with work on the removal of backlight_properties'
> deprecated fb_blank field, much of which can be taken care of by using
> helper functions provided by backlight.h instead of directly accessing
> fields in backlight_properties. This patch series doesn't involve
> fb_blank, but it still seems useful to use helper functions where
> appropriate.
>
> 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>
> Cc: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
> Cc: Kieran Bingham <kieran.bingham+renesas@ideasonboard.com>
> Cc: David Airlie <airlied@linux.ie>
> Cc: Daniel Vetter <daniel@ffwll.ch>
> Cc: dri-devel@lists.freedesktop.org
Thanks, added to drm-misc (drm-misc-next)
Sam
^ permalink raw reply [flat|nested] 8+ messages in thread
end of thread, other threads:[~2022-06-24 19:47 UTC | newest]
Thread overview: 8+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2022-06-16 17:08 [PATCH v2] drm: shmobile: Use backlight helper Stephen Kitt
2022-06-16 17:08 ` Stephen Kitt
2022-06-21 6:20 ` Laurent Pinchart
2022-06-21 6:20 ` Laurent Pinchart
2022-06-21 12:58 ` Kieran Bingham
2022-06-21 12:58 ` Kieran Bingham
2022-06-24 19:47 ` Sam Ravnborg
2022-06-24 19:47 ` Sam Ravnborg
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