From: Douglas Anderson dianders@chromium.org
[ Upstream commit 42a7a16bedc991190310a02dd202e29cfac52525 ]
The panel on sc7180-trogdor-wormdingler and sc7180-trogdor-quackingstick hasn't been coming up since commit 9e15123eca79 ("drm/msm/dsi: Stop unconditionally powering up DSI hosts at modeset"). Let's add "prepare_prev_first" as has been done for many other DSI panels.
Fixes: 9e15123eca79 ("drm/msm/dsi: Stop unconditionally powering up DSI hosts at modeset") Signed-off-by: Douglas Anderson dianders@chromium.org Reviewed-by: Jessica Zhang quic_jesszhan@quicinc.com Link: https://lore.kernel.org/r/20240216123111.1.I71c103720909790e1ec5a3f5bd96b18a... Signed-off-by: Neil Armstrong neil.armstrong@linaro.org Link: https://patchwork.freedesktop.org/patch/msgid/20240216123111.1.I71c103720909... Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/gpu/drm/panel/panel-boe-tv101wum-nl6.c | 2 ++ 1 file changed, 2 insertions(+)
diff --git a/drivers/gpu/drm/panel/panel-boe-tv101wum-nl6.c b/drivers/gpu/drm/panel/panel-boe-tv101wum-nl6.c index c4c0f08e92026..bc08814954f9b 100644 --- a/drivers/gpu/drm/panel/panel-boe-tv101wum-nl6.c +++ b/drivers/gpu/drm/panel/panel-boe-tv101wum-nl6.c @@ -1871,6 +1871,8 @@ static int boe_panel_add(struct boe_panel *boe)
gpiod_set_value(boe->enable_gpio, 0);
+ boe->base.prepare_prev_first = true; + drm_panel_init(&boe->base, dev, &boe_panel_funcs, DRM_MODE_CONNECTOR_DSI); err = of_drm_get_panel_orientation(dev->of_node, &boe->orientation);