Hi Sam,
Thank you for the patch.
On Sun, Jul 26, 2020 at 10:33:11PM +0200, Sam Ravnborg wrote:
> All panels shall report a connector type.
> panel-simple has a lot of panels with no connector_type,
> and for these fall back to DPI as the default.
>
> v2:
> - Rebased on top of validation of panel description
>
> Signed-off-by: Sam Ravnborg <sam@xxxxxxxxxxxx>
> Cc: Laurent Pinchart <laurent.pinchart@xxxxxxxxxxxxxxxx>
> Cc: Thierry Reding <thierry.reding@xxxxxxxxx>
> Cc: Sam Ravnborg <sam@xxxxxxxxxxxx>
Reviewed-by: Laurent Pinchart <laurent.pinchart@xxxxxxxxxxxxxxxx>
> ---
> drivers/gpu/drm/panel/panel-simple.c | 9 ++++++---
> 1 file changed, 6 insertions(+), 3 deletions(-)
>
> diff --git a/drivers/gpu/drm/panel/panel-simple.c b/drivers/gpu/drm/panel/panel-simple.c
> index a8d68102931e..56ab073e4e6e 100644
> --- a/drivers/gpu/drm/panel/panel-simple.c
> +++ b/drivers/gpu/drm/panel/panel-simple.c
> @@ -500,6 +500,7 @@ static int panel_simple_probe(struct device *dev, const struct panel_desc *desc)
> struct panel_simple *panel;
> struct display_timing dt;
> struct device_node *ddc;
> + int connector_type;
> u32 bus_flags;
> int err;
>
> @@ -550,10 +551,12 @@ static int panel_simple_probe(struct device *dev, const struct panel_desc *desc)
> panel_simple_parse_panel_timing_node(dev, panel, &dt);
> }
>
> + connector_type = desc->connector_type;
> /* Catch common mistakes for panels. */
> - switch (desc->connector_type) {
> + switch (connector_type) {
> case 0:
> dev_warn(dev, "Specify missing connector_type\n");
> + connector_type = DRM_MODE_CONNECTOR_DPI;
> break;
> case DRM_MODE_CONNECTOR_LVDS:
> WARN_ON(desc->bus_flags &
> @@ -600,11 +603,11 @@ static int panel_simple_probe(struct device *dev, const struct panel_desc *desc)
> break;
> default:
> dev_warn(dev, "Specify a valid connector_type: %d\n", desc->connector_type);
> + connector_type = DRM_MODE_CONNECTOR_DPI;
> break;
> }
>
> - drm_panel_init(&panel->base, dev, &panel_simple_funcs,
> - desc->connector_type);
> + drm_panel_init(&panel->base, dev, &panel_simple_funcs, connector_type);
>
> err = drm_panel_of_backlight(&panel->base);
> if (err)
--
Regards,
Laurent Pinchart
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