[PATCH] drm/bridge: anx6345: set correct BPC for display_info of connector

[PATCH] drm/bridge: anx6345: set correct BPC for display_info of connector

[Vasily Khoruzhick]

Some drivers (e.g. sun4i-drm) need this info to decide whether they
need to enable dithering. Currently driver reports what panel supports
and if panel supports 8 we don't get dithering enabled.

Hardcode BPC to 6 for now since that's the only BPC
that driver supports.

Fixes: 6aa192698089 ("drm/bridge: Add Analogix anx6345 support")
Signed-off-by: Vasily Khoruzhick <anarsoul@gmail.com>
---
 drivers/gpu/drm/bridge/analogix/analogix-anx6345.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/gpu/drm/bridge/analogix/analogix-anx6345.c b/drivers/gpu/drm/bridge/analogix/analogix-anx6345.c
index d7cb10c599a3..ea5de9395662 100644
--- a/drivers/gpu/drm/bridge/analogix/analogix-anx6345.c
+++ b/drivers/gpu/drm/bridge/analogix/analogix-anx6345.c
@@ -494,6 +494,9 @@ static int anx6345_get_modes(struct drm_connector *connector)
 
 	num_modes += drm_add_edid_modes(connector, anx6345->edid);
 
+	/* Driver currently supports only 6bpc */
+	connector->display_info.bpc = 6;
+
 unlock:
 	if (power_off)
 		anx6345_poweroff(anx6345);
-- 
2.25.0

Re: [PATCH] drm/bridge: anx6345: set correct BPC for display_info of connector

[Jernej Škrabec]

Hi!

Dne ponedeljek, 30. marec 2020 ob 00:22:53 CEST je Vasily Khoruzhick 
napisal(a):
> Some drivers (e.g. sun4i-drm) need this info to decide whether they
> need to enable dithering. Currently driver reports what panel supports
> and if panel supports 8 we don't get dithering enabled.
> 
> Hardcode BPC to 6 for now since that's the only BPC
> that driver supports.

Acked-by: Jernej Skrabec <jernej.skrabec@siol.net>

Best regards,
Jernej

> 
> Fixes: 6aa192698089 ("drm/bridge: Add Analogix anx6345 support")
> Signed-off-by: Vasily Khoruzhick <anarsoul@gmail.com>
> ---
>  drivers/gpu/drm/bridge/analogix/analogix-anx6345.c | 3 +++
>  1 file changed, 3 insertions(+)
> 
> diff --git a/drivers/gpu/drm/bridge/analogix/analogix-anx6345.c
> b/drivers/gpu/drm/bridge/analogix/analogix-anx6345.c index
> d7cb10c599a3..ea5de9395662 100644
> --- a/drivers/gpu/drm/bridge/analogix/analogix-anx6345.c
> +++ b/drivers/gpu/drm/bridge/analogix/analogix-anx6345.c
> @@ -494,6 +494,9 @@ static int anx6345_get_modes(struct drm_connector
> *connector)
> 
>  	num_modes += drm_add_edid_modes(connector, anx6345->edid);
> 
> +	/* Driver currently supports only 6bpc */
> +	connector->display_info.bpc = 6;
> +
>  unlock:
>  	if (power_off)
>  		anx6345_poweroff(anx6345);

Re: drm/bridge: anx6345: set correct BPC for display_info of connector

[Jernej Škrabec]

Dne ponedeljek, 30. marec 2020 ob 00:22:53 CEST je Vasily Khoruzhick 
napisal(a):
> Some drivers (e.g. sun4i-drm) need this info to decide whether they
> need to enable dithering. Currently driver reports what panel supports
> and if panel supports 8 we don't get dithering enabled.
> 
> Hardcode BPC to 6 for now since that's the only BPC
> that driver supports.
> 
> Fixes: 6aa192698089 ("drm/bridge: Add Analogix anx6345 support")
> Signed-off-by: Vasily Khoruzhick <anarsoul@gmail.com>

Applied to drm-misc-fixes. Thanks!

Best regards,
Jernej