diff options
| author | Icenowy Zheng <zhengxingda@iscas.ac.cn> | 2026-04-25 19:57:51 +0300 |
|---|---|---|
| committer | Neil Armstrong <neil.armstrong@linaro.org> | 2026-05-05 15:43:36 +0300 |
| commit | 2d4e80271f784aa0c7b17676e9762c7e8156be1c (patch) | |
| tree | 5ee3a708209cd3198f2a473ba2aa7fcfb183f094 | |
| parent | 570cf799e87ae805eacfab3b4ba66676b5fccdb6 (diff) | |
| download | linux-2d4e80271f784aa0c7b17676e9762c7e8156be1c.tar.xz | |
drm/panel: himax-hx83102: restore MODE_LPM after sending disable cmds
When preparing the panel, it seems that it always expects commands to be
transferred in LP mode. However, the disable function removes the
MIPI_DSI_MODE_LPM flag, and no other function re-adds it.
As the unprepare function contains no DSI commands, re-adding the flag
just after disabling the panel should be safe. Add the code re-adding
the flag after the two commands for disabling the panel are sent.
This fixes screen unblanking (after blanking once) on
mt8188-geralt-ciri-sku1 device.
Cc: stable@vger.kernel.org # 6.11+
Fixes: 0ef94554dc40 ("drm/panel: himax-hx83102: Break out as separate driver")
Signed-off-by: Icenowy Zheng <zhengxingda@iscas.ac.cn>
Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org>
Reviewed-by: Douglas Anderson <dianders@chromium.org>
Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
Link: https://patch.msgid.link/20260425165751.1716569-1-zhengxingda@iscas.ac.cn
| -rw-r--r-- | drivers/gpu/drm/panel/panel-himax-hx83102.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/gpu/drm/panel/panel-himax-hx83102.c b/drivers/gpu/drm/panel/panel-himax-hx83102.c index 8b2a68ee851e..a5e5c9ea7a73 100644 --- a/drivers/gpu/drm/panel/panel-himax-hx83102.c +++ b/drivers/gpu/drm/panel/panel-himax-hx83102.c @@ -937,6 +937,8 @@ static int hx83102_disable(struct drm_panel *panel) mipi_dsi_dcs_set_display_off_multi(&dsi_ctx); mipi_dsi_dcs_enter_sleep_mode_multi(&dsi_ctx); + dsi->mode_flags |= MIPI_DSI_MODE_LPM; + mipi_dsi_msleep(&dsi_ctx, 150); return dsi_ctx.accum_err; |