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drm/panel: nv3051d: Hold panel in reset for unprepare 

[ Upstream commit 697ebc319b942403a6fee894607fd2cd47cca069 ]

Improve the panel's ability to restore from suspend by holding the
panel in suspend after unprepare.

Fixes: b1d39f0f42 ("drm/panel: Add NewVision NV3051D MIPI-DSI LCD panel")
Signed-off-by: Chris Morgan <macromorgan@hotmail.com>
Reviewed-by: Jessica Zhang <quic_jesszhan@quicinc.com>
Link: https://lore.kernel.org/r/20231117202536.1387815-3-macroalpha82@gmail.com
Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20231117202536.1387815-3-macroalpha82@gmail.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Chris Morgan 2023-11-17 14:25:32 -06:00 committed by Greg Kroah-Hartman
parent ada27426b0
commit e9c9fd317a
1 changed files with 2 additions and 0 deletions
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2
drivers/gpu/drm/panel/panel-newvision-nv3051d.c
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@ -261,6 +261,8 @@ static int panel_nv3051d_unprepare(struct drm_panel *panel)
usleep_range(10000, 15000);
gpiod_set_value_cansleep(ctx->reset_gpio, 1);
regulator_disable(ctx->vdd);
return 0;