github-mirror/linux
1
0
Fork 0
mirror of https://github.com/torvalds/linux.git synced 2026-11-07 06:17:02 +01:00
Code Issues Actions Packages Projects Releases Wiki Activity Graph

drm/panel: ronbo-rb070d30: Ignore DCS errors in disable()

Browse Source 
If rb070d30_panel_disable() returns an error, drm_panel_disable() skips
clearing panel->enabled. unprepare() still powers the panel off, but the
next drm_panel_enable() sees the panel as already enabled and does
nothing, so the panel stays dark.

Always return 0 from disable(). A failed ENTER_SLEEP_MODE is still logged
by mipi_dsi_dcs_enter_sleep_mode_multi().

Suggested-by: Douglas Anderson <dianders@chromium.org>
Signed-off-by: Hsieh Hung-En <hungen3108@gmail.com>
Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org>
Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
Link: https://patch.msgid.link/20261001004940.110776-1-hungen3108@gmail.com
This commit is contained in:
Hsieh Hung-En 2026-10-01 08:49:40 +08:00 committed by Neil Armstrong
parent f5c3d702f4
commit 00efe8a685
1 changed files with 7 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

8
drivers/gpu/drm/panel/panel-ronbo-rb070d30.c
View File

@ -87,7 +87,13 @@ static int rb070d30_panel_disable(struct drm_panel *panel)
struct mipi_dsi_multi_context dsi_ctx = { .dsi = ctx->dsi };
mipi_dsi_dcs_enter_sleep_mode_multi(&dsi_ctx);
return dsi_ctx.accum_err;
/*
* Returning an error would leave panel->enabled set, causing the
* next enable to be skipped even after unprepare powers off the panel.
* The helper above already logs any command failure.
*/
return 0;
}
/* Default timings */