2024-04-20 02:41:14

by Dmitry Baryshkov

[permalink] [raw]
Subject: [PATCH 0/2] drm/panel: two fixes for lg-sw43408

Fix two issues with the panel-lg-sw43408 driver reported by the kernel
test robot.

Signed-off-by: Dmitry Baryshkov <[email protected]>
---
Dmitry Baryshkov (2):
drm/panel/lg-sw43408: depends on CONFIG_DRM_DISPLAY_DP_HELPER
drm/panel/lg-sw43408: mark sw43408_backlight_ops as static

drivers/gpu/drm/panel/Kconfig | 1 +
drivers/gpu/drm/panel/panel-lg-sw43408.c | 2 +-
2 files changed, 2 insertions(+), 1 deletion(-)
---
base-commit: a35e92ef04c07bd473404b9b73d489aea19a60a8
change-id: 20240420-panel-sw43408-fix-ff6549c121be

Best regards,
--
Dmitry Baryshkov <[email protected]>



2024-04-20 02:41:20

by Dmitry Baryshkov

[permalink] [raw]
Subject: [PATCH 1/2] drm/panel/lg-sw43408: depends on CONFIG_DRM_DISPLAY_DP_HELPER

This panel driver uses DSC PPS functions and as such depends on the
DRM_DISPLAY_DP_HELPER. Add missing dependency

Reported-by: kernel test robot <[email protected]>
Closes: https://lore.kernel.org/oe-kbuild-all/[email protected]/
Signed-off-by: Dmitry Baryshkov <[email protected]>
---
drivers/gpu/drm/panel/Kconfig | 1 +
1 file changed, 1 insertion(+)

diff --git a/drivers/gpu/drm/panel/Kconfig b/drivers/gpu/drm/panel/Kconfig
index ab67789e59a2..5e6692207beb 100644
--- a/drivers/gpu/drm/panel/Kconfig
+++ b/drivers/gpu/drm/panel/Kconfig
@@ -340,6 +340,7 @@ config DRM_PANEL_LG_SW43408
depends on OF
depends on DRM_MIPI_DSI
depends on BACKLIGHT_CLASS_DEVICE
+ depends on DRM_DISPLAY_DP_HELPER
help
Say Y here if you want to enable support for LG sw43408 panel.
The panel has a 1080x2160@60Hz resolution and uses 24 bit RGB per

--
2.39.2


2024-04-20 02:41:52

by Dmitry Baryshkov

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Subject: [PATCH 2/2] drm/panel/lg-sw43408: mark sw43408_backlight_ops as static

Fix sparse warning regarding symbol 'sw43408_backlight_ops' not being
declared.

Reported-by: kernel test robot <[email protected]>
Closes: https://lore.kernel.org/oe-kbuild-all/[email protected]/
Signed-off-by: Dmitry Baryshkov <[email protected]>
---
drivers/gpu/drm/panel/panel-lg-sw43408.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/panel/panel-lg-sw43408.c b/drivers/gpu/drm/panel/panel-lg-sw43408.c
index 115f4702d59f..2b3a73696dce 100644
--- a/drivers/gpu/drm/panel/panel-lg-sw43408.c
+++ b/drivers/gpu/drm/panel/panel-lg-sw43408.c
@@ -182,7 +182,7 @@ static int sw43408_backlight_update_status(struct backlight_device *bl)
return mipi_dsi_dcs_set_display_brightness_large(dsi, brightness);
}

-const struct backlight_ops sw43408_backlight_ops = {
+static const struct backlight_ops sw43408_backlight_ops = {
.update_status = sw43408_backlight_update_status,
};


--
2.39.2


2024-04-24 06:58:51

by Neil Armstrong

[permalink] [raw]
Subject: Re: [PATCH 2/2] drm/panel/lg-sw43408: mark sw43408_backlight_ops as static

On 20/04/2024 04:41, Dmitry Baryshkov wrote:
> Fix sparse warning regarding symbol 'sw43408_backlight_ops' not being
> declared.
>
> Reported-by: kernel test robot <[email protected]>
> Closes: https://lore.kernel.org/oe-kbuild-all/[email protected]/
> Signed-off-by: Dmitry Baryshkov <[email protected]>

No fixed either ?

> ---
> drivers/gpu/drm/panel/panel-lg-sw43408.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/gpu/drm/panel/panel-lg-sw43408.c b/drivers/gpu/drm/panel/panel-lg-sw43408.c
> index 115f4702d59f..2b3a73696dce 100644
> --- a/drivers/gpu/drm/panel/panel-lg-sw43408.c
> +++ b/drivers/gpu/drm/panel/panel-lg-sw43408.c
> @@ -182,7 +182,7 @@ static int sw43408_backlight_update_status(struct backlight_device *bl)
> return mipi_dsi_dcs_set_display_brightness_large(dsi, brightness);
> }
>
> -const struct backlight_ops sw43408_backlight_ops = {
> +static const struct backlight_ops sw43408_backlight_ops = {
> .update_status = sw43408_backlight_update_status,
> };
>
>

Reviewed-by: Neil Armstrong <[email protected]>

2024-04-24 06:58:56

by Neil Armstrong

[permalink] [raw]
Subject: Re: [PATCH 1/2] drm/panel/lg-sw43408: depends on CONFIG_DRM_DISPLAY_DP_HELPER

On 20/04/2024 04:41, Dmitry Baryshkov wrote:
> This panel driver uses DSC PPS functions and as such depends on the
> DRM_DISPLAY_DP_HELPER. Add missing dependency
>
> Reported-by: kernel test robot <[email protected]>
> Closes: https://lore.kernel.org/oe-kbuild-all/[email protected]/

No Fixes ?

> Signed-off-by: Dmitry Baryshkov <[email protected]>
> ---
> drivers/gpu/drm/panel/Kconfig | 1 +
> 1 file changed, 1 insertion(+)
>
> diff --git a/drivers/gpu/drm/panel/Kconfig b/drivers/gpu/drm/panel/Kconfig
> index ab67789e59a2..5e6692207beb 100644
> --- a/drivers/gpu/drm/panel/Kconfig
> +++ b/drivers/gpu/drm/panel/Kconfig
> @@ -340,6 +340,7 @@ config DRM_PANEL_LG_SW43408
> depends on OF
> depends on DRM_MIPI_DSI
> depends on BACKLIGHT_CLASS_DEVICE
> + depends on DRM_DISPLAY_DP_HELPER
> help
> Say Y here if you want to enable support for LG sw43408 panel.
> The panel has a 1080x2160@60Hz resolution and uses 24 bit RGB per
>

Reviewed-by: Neil Armstrong <[email protected]>

2024-04-24 07:44:42

by Dmitry Baryshkov

[permalink] [raw]
Subject: Re: [PATCH 1/2] drm/panel/lg-sw43408: depends on CONFIG_DRM_DISPLAY_DP_HELPER

On Wed, 24 Apr 2024 at 09:54, Neil Armstrong <[email protected]> wrote:
>
> On 20/04/2024 04:41, Dmitry Baryshkov wrote:
> > This panel driver uses DSC PPS functions and as such depends on the
> > DRM_DISPLAY_DP_HELPER. Add missing dependency
> >
> > Reported-by: kernel test robot <[email protected]>
> > Closes: https://lore.kernel.org/oe-kbuild-all/[email protected]/
>
> No Fixes ?

I'll add Fixes for v2. I'm waiting for the discussion on Kconfig to settle.

>
> > Signed-off-by: Dmitry Baryshkov <[email protected]>
> > ---
> > drivers/gpu/drm/panel/Kconfig | 1 +
> > 1 file changed, 1 insertion(+)
> >
> > diff --git a/drivers/gpu/drm/panel/Kconfig b/drivers/gpu/drm/panel/Kconfig
> > index ab67789e59a2..5e6692207beb 100644
> > --- a/drivers/gpu/drm/panel/Kconfig
> > +++ b/drivers/gpu/drm/panel/Kconfig
> > @@ -340,6 +340,7 @@ config DRM_PANEL_LG_SW43408
> > depends on OF
> > depends on DRM_MIPI_DSI
> > depends on BACKLIGHT_CLASS_DEVICE
> > + depends on DRM_DISPLAY_DP_HELPER
> > help
> > Say Y here if you want to enable support for LG sw43408 panel.
> > The panel has a 1080x2160@60Hz resolution and uses 24 bit RGB per
> >
>
> Reviewed-by: Neil Armstrong <[email protected]>



--
With best wishes
Dmitry

2024-04-24 08:22:25

by Maxime Ripard

[permalink] [raw]
Subject: Re: [PATCH 1/2] drm/panel/lg-sw43408: depends on CONFIG_DRM_DISPLAY_DP_HELPER

Hi,

On Wed, Apr 24, 2024 at 10:43:32AM +0300, Dmitry Baryshkov wrote:
> On Wed, 24 Apr 2024 at 09:54, Neil Armstrong <[email protected]> wrote:
> >
> > On 20/04/2024 04:41, Dmitry Baryshkov wrote:
> > > This panel driver uses DSC PPS functions and as such depends on the
> > > DRM_DISPLAY_DP_HELPER. Add missing dependency
> > >
> > > Reported-by: kernel test robot <[email protected]>
> > > Closes: https://lore.kernel.org/oe-kbuild-all/[email protected]/
> >
> > No Fixes ?
>
> I'll add Fixes for v2. I'm waiting for the discussion on Kconfig to settle.
>
> >
> > > Signed-off-by: Dmitry Baryshkov <[email protected]>
> > > ---
> > > drivers/gpu/drm/panel/Kconfig | 1 +
> > > 1 file changed, 1 insertion(+)
> > >
> > > diff --git a/drivers/gpu/drm/panel/Kconfig b/drivers/gpu/drm/panel/Kconfig
> > > index ab67789e59a2..5e6692207beb 100644
> > > --- a/drivers/gpu/drm/panel/Kconfig
> > > +++ b/drivers/gpu/drm/panel/Kconfig
> > > @@ -340,6 +340,7 @@ config DRM_PANEL_LG_SW43408
> > > depends on OF
> > > depends on DRM_MIPI_DSI
> > > depends on BACKLIGHT_CLASS_DEVICE
> > > + depends on DRM_DISPLAY_DP_HELPER
> > > help
> > > Say Y here if you want to enable support for LG sw43408 panel.
> > > The panel has a 1080x2160@60Hz resolution and uses 24 bit RGB per
> > >
> >
> > Reviewed-by: Neil Armstrong <[email protected]>

There's an ongoing discussion about reverting the whole Kconfig rework
thing here and the dust hasn't settled yet:

https://lore.kernel.org/r/[email protected]

I don't think there's anything you need to do now, but it's probably
good to keep it in mind.

Maxime


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