drm/panel: panel-innolux: set display off in innolux_panel_unprepare
authorHsin-Yi, Wang <hsinyi@chromium.org>
Wed, 9 Jan 2019 06:59:22 +0000 (14:59 +0800)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Sat, 20 Apr 2019 07:15:06 +0000 (09:15 +0200)
commit61bea6ad5c99a3d1adb28b17d25b21d71998b65b
tree2f52f6584f9b30a240e9b9e03b8c5f80d94611f3
parentf2778b3522da89d5fd4a95aa95dc6d01a45a3710
drm/panel: panel-innolux: set display off in innolux_panel_unprepare

[ Upstream commit 46f3ceaffa81e846677bca8668e0ad40e643cffd ]

Move mipi_dsi_dcs_set_display_off() from innolux_panel_disable()
to innolux_panel_unprepare(), so they are consistent with
innolux_panel_enable() and innolux_panel_prepare().

This also fixes some mode check and irq timeout issue in MTK dsi code.

Since some dsi code (e.g. mtk_dsi) have following call trace:
1. drm_panel_disable(), which calls innolux_panel_disable()
2. switch to cmd mode
3. drm_panel_unprepare(), which calls innolux_panel_unprepare()

However, mtk_dsi needs to be in cmd mode to be able to send commands
(e.g. mipi_dsi_dcs_set_display_off() and mipi_dsi_dcs_enter_sleep_mode()),
so we need these functions to be called after the switch to cmd mode happens,
i.e. in innolux_panel_unprepare.

Signed-off-by: Hsin-Yi, Wang <hsinyi@chromium.org>
Signed-off-by: Sean Paul <seanpaul@chromium.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20190109065922.231753-1-hsinyi@chromium.org
Signed-off-by: Sasha Levin <sashal@kernel.org>
drivers/gpu/drm/panel/panel-innolux-p079zca.c