Messages in this thread Patch in this message | | | From | Douglas Anderson <> | Subject | [PATCH] drm/panel: boe-tv101wum-nl6: make use of prepare_prev_first | Date | Fri, 16 Feb 2024 12:31:12 -0800 |
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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> --- This of course gets into debates about getting a nicer solution that doesn't involve adding "prepare_prev_first" to every DSI panel out there, maybe building on Dmitry's work [1]. While it would be nice if we could get there, getting this landed is easy to backport to stable trees and gets the panel working again.
[1] https://lore.kernel.org/r/20231016165355.1327217-4-dmitry.baryshkov@linaro.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 c4c0f08e9202..bc08814954f9 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); -- 2.44.0.rc0.258.g7320e95886-goog
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