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drm/panel: jadard-jd9365da-h3: set prepare_prev_first

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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>
Tested-by: Riccardo Mereu <r.mereu@arduino.cc>
Link: https://patch.msgid.link/20260413-waveshare-dsi-touch-v3-13-3aeb53022c32@oss.qualcomm.com
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
This commit is contained in:
Dmitry Baryshkov 2026-04-13 17:05:36 +03:00
parent eb019688f2
commit b55a4b5d47
1 changed files with 2 additions and 0 deletions
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2
drivers/gpu/drm/panel/panel-jadard-jd9365da-h3.c
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@ -1666,6 +1666,8 @@ static int jadard_dsi_probe(struct mipi_dsi_device *dsi)
if (ret)
return ret;
jadard->panel.prepare_prev_first = true;
drm_panel_add(&jadard->panel);
mipi_dsi_set_drvdata(dsi, jadard);