From: Christoph Niedermaier cniedermaier@dh-electronics.com

[ Upstream commit 6df4432a5eca101b5fd80fbee41d309f3d67928d ]

In the function panel_simple_probe() the pointer panel->desc is assigned to the passed pointer desc. If function panel_dpi_probe() is called panel->desc will be updated, but further on only desc will be evaluated. So update the desc pointer to be able to use the data from the function panel_dpi_probe().

Fixes: 4a1d0dbc8332 ("drm/panel: simple: add panel-dpi support")

Signed-off-by: Christoph Niedermaier cniedermaier@dh-electronics.com Cc: Marek Vasut marex@denx.de Cc: Thierry Reding thierry.reding@gmail.com Cc: Sam Ravnborg sam@ravnborg.org Cc: David Airlie airlied@linux.ie Cc: Daniel Vetter daniel@ffwll.ch To: dri-devel@lists.freedesktop.org Reviewed-by: Sam Ravnborg sam@ravnborg.org Signed-off-by: Marek Vasut marex@denx.de Link: https://patchwork.freedesktop.org/patch/msgid/20220201110153.3479-1-cniederm... Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/gpu/drm/panel/panel-simple.c | 1 + 1 file changed, 1 insertion(+)

diff --git a/drivers/gpu/drm/panel/panel-simple.c b/drivers/gpu/drm/panel/panel-simple.c index 204674fccd646..7ffd2a04ab23a 100644 --- a/drivers/gpu/drm/panel/panel-simple.c +++ b/drivers/gpu/drm/panel/panel-simple.c @@ -557,6 +557,7 @@ static int panel_simple_probe(struct device *dev, const struct panel_desc *desc) err = panel_dpi_probe(dev, panel); if (err) goto free_ddc; + desc = panel->desc; } else { if (!of_get_display_timing(dev->of_node, "panel-timing", &dt)) panel_simple_parse_panel_timing_node(dev, panel, &dt);