github-mirror/linux
1
0
Fork 0
mirror of https://github.com/torvalds/linux.git synced 2026-07-27 09:36:22 +02:00
Code Issues Actions Packages Projects Releases Wiki Activity Graph

drm/panel: himax-hx8394: set prepare_prev_first

Browse Source 
Sending DSI commands from the prepare() callback requires DSI link to be
up at that point. For DSI hosts is guaranteed only if the panel driver
sets the .prepare_prev_first flag. Set it to let these panels work with
the DSI hosts which don't power on the link in their .mode_set callback.

Reviewed-by: Linus Walleij <linusw@kernel.org>
Reviewed-by: Javier Martinez Canillas <javierm@redhat.com>
Link: https://patch.msgid.link/20260413-waveshare-dsi-touch-v3-8-3aeb53022c32@oss.qualcomm.com
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
This commit is contained in:
Dmitry Baryshkov 2026-04-13 17:05:31 +03:00
parent 1af0feaca1
commit dd0d0a4871
1 changed files with 2 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
drivers/gpu/drm/panel/panel-himax-hx8394.c
View File

@ -792,6 +792,8 @@ static int hx8394_probe(struct mipi_dsi_device *dsi)
if (ret)
return ret;
ctx->panel.prepare_prev_first = true;
drm_panel_add(&ctx->panel);
ret = mipi_dsi_attach(dsi);