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drm/panel: boe-tv101wum-nl6: restore MODE_LPM after sending disable cmds

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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 error messages shown in kernel log when unblanking on
mt8183-kukui-kodama-sku32 device.

Cc: stable@vger.kernel.org
Fixes: a869b9db7a ("drm/panel: support for boe tv101wum-nl6 wuxga dsi video mode panel")
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/20260503091708.1079962-1-zhengxingda@iscas.ac.cn
This commit is contained in:
Icenowy Zheng 2026-05-03 17:17:08 +08:00 committed by Neil Armstrong
parent c67e8787f6
commit 570cf799e8
1 changed files with 2 additions and 0 deletions
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2
drivers/gpu/drm/panel/panel-boe-tv101wum-nl6.c
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@ -1324,6 +1324,8 @@ static int boe_panel_disable(struct drm_panel *panel)
mipi_dsi_dcs_set_display_off_multi(&ctx);
mipi_dsi_dcs_enter_sleep_mode_multi(&ctx);
boe->dsi->mode_flags |= MIPI_DSI_MODE_LPM;
mipi_dsi_msleep(&ctx, 150);
return ctx.accum_err;