From: Tomi Valkeinen tomi.valkeinen@ti.com
[ Upstream commit 3231573065ad4f4ecc5c9147b24f29f846dc0c2f ]
We need to know the link bandwidth to filter out modes we cannot support, so we need to have read the display props before doing the filtering.
To ensure we have up to date display props, call tc_get_display_props() in the beginning of tc_connector_get_modes().
Signed-off-by: Tomi Valkeinen tomi.valkeinen@ti.com Reviewed-by: Andrzej Hajda a.hajda@samsung.com Signed-off-by: Andrzej Hajda a.hajda@samsung.com Link: https://patchwork.freedesktop.org/patch/msgid/20190528082747.3631-22-tomi.va... Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/gpu/drm/bridge/tc358767.c | 7 +++++++ 1 file changed, 7 insertions(+)
diff --git a/drivers/gpu/drm/bridge/tc358767.c b/drivers/gpu/drm/bridge/tc358767.c index 391547358756..aaca5248da07 100644 --- a/drivers/gpu/drm/bridge/tc358767.c +++ b/drivers/gpu/drm/bridge/tc358767.c @@ -1149,6 +1149,13 @@ static int tc_connector_get_modes(struct drm_connector *connector) struct tc_data *tc = connector_to_tc(connector); struct edid *edid; unsigned int count; + int ret; + + ret = tc_get_display_props(tc); + if (ret < 0) { + dev_err(tc->dev, "failed to read display props: %d\n", ret); + return 0; + }
if (tc->panel && tc->panel->funcs && tc->panel->funcs->get_modes) { count = tc->panel->funcs->get_modes(tc->panel);