[PATCH] drm: panel: Fix bus format for OrtusTech COM43H4M85ULC panel

Sam Ravnborg sam at ravnborg.org
Mon Aug 17 04:28:21 UTC 2020


On Mon, Aug 17, 2020 at 03:30:45AM +0300, Laurent Pinchart wrote:
> Hi Sam,
> 
> On Thu, Aug 13, 2020 at 09:18:44PM +0200, Sam Ravnborg wrote:
> > On Thu, Aug 13, 2020 at 01:02:44AM +0300, Laurent Pinchart wrote:
> > > The OrtusTech COM43H4M85ULC panel is a 18-bit RGB panel, set the bus
> > > format to MEDIA_BUS_FMT_RGB666_1X18.
> > > 
> > > Fixes: 725c9d40f3fe ("drm/panel: Add support for OrtusTech COM43H4M85ULC panel")
> > > Signed-off-by: Laurent Pinchart <laurent.pinchart at ideasonboard.com>
> > > ---
> > >  drivers/gpu/drm/panel/panel-simple.c | 2 +-
> > >  1 file changed, 1 insertion(+), 1 deletion(-)
> > > 
> > > diff --git a/drivers/gpu/drm/panel/panel-simple.c b/drivers/gpu/drm/panel/panel-simple.c
> > > index ef8df838fe14..ef04fd75babd 100644
> > > --- a/drivers/gpu/drm/panel/panel-simple.c
> > > +++ b/drivers/gpu/drm/panel/panel-simple.c
> > > @@ -3018,7 +3018,7 @@ static const struct panel_desc ortustech_com43h4m85ulc = {
> > >  		.width = 56,
> > >  		.height = 93,
> > >  	},
> > > -	.bus_format = MEDIA_BUS_FMT_RGB888_1X24,
> > > +	.bus_format = MEDIA_BUS_FMT_RGB666_1X18,
> > >  	.bus_flags = DRM_BUS_FLAG_DE_HIGH | DRM_BUS_FLAG_PIXDATA_DRIVE_POSEDGE,
> > >  	.connector_type = DRM_MODE_CONNECTOR_DPI,
> > >  };
> > 
> > So basically we say that this panel is bpc=8 but connected so we only
> > utilise 6 bits per color - seems like a waste but may be good enough.
> > There are other panels that is connected in the same way.
> 
> No, this is a 6 bpc panel, I just forgot to fix that :-S
> 
> > Applied.
> 
> Should I send a fix on top of drm-misc, or would you like to do so ?
Please send a fix.

	Sam
> 
> -- 
> Regards,
> 
> Laurent Pinchart


More information about the dri-devel mailing list