[PATCH v3 3/8] drm/panel: sw43408: Introduce LH546WF1-ED01 panel compatible

David Heidelberg via B4 Relay posted 8 patches 1 week, 6 days ago
There is a newer version of this series
[PATCH v3 3/8] drm/panel: sw43408: Introduce LH546WF1-ED01 panel compatible
Posted by David Heidelberg via B4 Relay 1 week, 6 days ago
From: David Heidelberg <david@ixit.cz>

The supported panel is LH546WF1-ED01, add compatible and adjust the
struct name to reflect that.

The standalone compatible lg,sw43408 will continue to work, even thou
there are no users yet.

Signed-off-by: David Heidelberg <david@ixit.cz>
---
 drivers/gpu/drm/panel/panel-lg-sw43408.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/panel/panel-lg-sw43408.c b/drivers/gpu/drm/panel/panel-lg-sw43408.c
index 46a56ea92ad9f..bd55f6d8f2771 100644
--- a/drivers/gpu/drm/panel/panel-lg-sw43408.c
+++ b/drivers/gpu/drm/panel/panel-lg-sw43408.c
@@ -149,7 +149,7 @@ static int sw43408_prepare(struct drm_panel *panel)
 	return ret;
 }
 
-static const struct drm_display_mode sw43408_mode = {
+static const struct drm_display_mode lh546wf1_ed01_mode = {
 	.clock = (1080 + 20 + 32 + 20) * (2160 + 20 + 4 + 20) * 60 / 1000,
 
 	.hdisplay = 1080,
@@ -171,7 +171,7 @@ static const struct drm_display_mode sw43408_mode = {
 static int sw43408_get_modes(struct drm_panel *panel,
 			     struct drm_connector *connector)
 {
-	return drm_connector_helper_get_modes_fixed(connector, &sw43408_mode);
+	return drm_connector_helper_get_modes_fixed(connector, &lh546wf1_ed01_mode);
 }
 
 static int sw43408_backlight_update_status(struct backlight_device *bl)
@@ -214,7 +214,9 @@ static const struct drm_panel_funcs sw43408_funcs = {
 };
 
 static const struct of_device_id sw43408_of_match[] = {
+	/* legacy */
 	{ .compatible = "lg,sw43408", },
+	{ .compatible = "lg,sw43408-lh546wf1-ed01", },
 	{ /* sentinel */ }
 };
 MODULE_DEVICE_TABLE(of, sw43408_of_match);

-- 
2.51.0
Re: [PATCH v3 3/8] drm/panel: sw43408: Introduce LH546WF1-ED01 panel compatible
Posted by Dmitry Baryshkov 1 week, 5 days ago
On Tue, Nov 18, 2025 at 12:30:38PM +0100, David Heidelberg via B4 Relay wrote:
> From: David Heidelberg <david@ixit.cz>
> 
> The supported panel is LH546WF1-ED01, add compatible and adjust the
> struct name to reflect that.
> 
> The standalone compatible lg,sw43408 will continue to work, even thou
> there are no users yet.

.. no users _left_ ?

> 
> Signed-off-by: David Heidelberg <david@ixit.cz>
> ---
>  drivers/gpu/drm/panel/panel-lg-sw43408.c | 6 ++++--
>  1 file changed, 4 insertions(+), 2 deletions(-)
> 
> diff --git a/drivers/gpu/drm/panel/panel-lg-sw43408.c b/drivers/gpu/drm/panel/panel-lg-sw43408.c
> index 46a56ea92ad9f..bd55f6d8f2771 100644
> --- a/drivers/gpu/drm/panel/panel-lg-sw43408.c
> +++ b/drivers/gpu/drm/panel/panel-lg-sw43408.c
> @@ -149,7 +149,7 @@ static int sw43408_prepare(struct drm_panel *panel)
>  	return ret;
>  }
>  
> -static const struct drm_display_mode sw43408_mode = {
> +static const struct drm_display_mode lh546wf1_ed01_mode = {
>  	.clock = (1080 + 20 + 32 + 20) * (2160 + 20 + 4 + 20) * 60 / 1000,
>  
>  	.hdisplay = 1080,
> @@ -171,7 +171,7 @@ static const struct drm_display_mode sw43408_mode = {
>  static int sw43408_get_modes(struct drm_panel *panel,
>  			     struct drm_connector *connector)
>  {
> -	return drm_connector_helper_get_modes_fixed(connector, &sw43408_mode);
> +	return drm_connector_helper_get_modes_fixed(connector, &lh546wf1_ed01_mode);
>  }
>  
>  static int sw43408_backlight_update_status(struct backlight_device *bl)
> @@ -214,7 +214,9 @@ static const struct drm_panel_funcs sw43408_funcs = {
>  };
>  
>  static const struct of_device_id sw43408_of_match[] = {
> +	/* legacy */

Nit: I'd read this comment in a way that both entries are legacy. Would
it be possible to adjust this somehow (e.g. put legacy on the same line
or extend it, explaining that only lg,sw43408 is legacy).

>  	{ .compatible = "lg,sw43408", },
> +	{ .compatible = "lg,sw43408-lh546wf1-ed01", },

>  	{ /* sentinel */ }
>  };
>  MODULE_DEVICE_TABLE(of, sw43408_of_match);
> 
> -- 
> 2.51.0
> 
> 

-- 
With best wishes
Dmitry
Re: [PATCH v3 3/8] drm/panel: sw43408: Introduce LH546WF1-ED01 panel compatible
Posted by David Heidelberg 1 week, 5 days ago
On 19/11/2025 08:36, Dmitry Baryshkov wrote:
> On Tue, Nov 18, 2025 at 12:30:38PM +0100, David Heidelberg via B4 Relay wrote:
>> From: David Heidelberg <david@ixit.cz>
>>
>> The supported panel is LH546WF1-ED01, add compatible and adjust the
>> struct name to reflect that.
>>
>> The standalone compatible lg,sw43408 will continue to work, even thou
>> there are no users yet.
> 
> .. no users _left_ ?

The compatible users wasn't introduced in the first place (the driver is 
written for Pixel 3, but the device-tree didn't got in back then).

[...]

>>   static int sw43408_backlight_update_status(struct backlight_device *bl)
>> @@ -214,7 +214,9 @@ static const struct drm_panel_funcs sw43408_funcs = {
>>   };
>>   
>>   static const struct of_device_id sw43408_of_match[] = {
>> +	/* legacy */
> 
> Nit: I'd read this comment in a way that both entries are legacy. Would
> it be possible to adjust this somehow (e.g. put legacy on the same line
> or extend it, explaining that only lg,sw43408 is legacy).

Sure, I'll inline it.

Thanks
David

> 
>>   	{ .compatible = "lg,sw43408", },
>> +	{ .compatible = "lg,sw43408-lh546wf1-ed01", },
> 
>>   	{ /* sentinel */ }
>>   };
>>   MODULE_DEVICE_TABLE(of, sw43408_of_match);
>>
>> --