Re: [PATCH] drm/panel/boe-tv101wum-nl6: set MIPI_DSI_MODE_LPM after sending panel disable cmds

[Neil Armstrong <neil.armstrong@linaro.org>]

On 4/21/26 17:31, Brady Norander wrote:
> A recent change to Mediatek drm driver enabled HS mode support. With that
> change, my MT8183-based krane sku176 chromebook display's colors would look darker
> and desaturated after turning the display off and back on. Looking at other panel
> drivers, it seems common to enable HS mode to send the disable commands and to
> disable HS mode afterwards. However, the boe-tv101wum-nl6 driver would never
> disable HS mode, leading to this issue. Update the behavior of boe_panel_disable
> to match those other panel drivers. As a side note, I did also test removing the
> line which enables HS mode during panel_disable. This worked fine for my device,
> but just in case that doesn't work for other devices, I chose to keep that and
> instead disable HS mode after sending the panel disable commands.
> 
> Signed-off-by: Brady Norander <brady.norander@mainlining.org>
> 
> diff --git a/drivers/gpu/drm/panel/panel-boe-tv101wum-nl6.c b/drivers/gpu/drm/panel/panel-boe-tv101wum-nl6.c
> index d5fe105bdbdd..f69b5bd776c0 100644
> --- a/drivers/gpu/drm/panel/panel-boe-tv101wum-nl6.c
> +++ b/drivers/gpu/drm/panel/panel-boe-tv101wum-nl6.c
> @@ -1326,6 +1326,8 @@ static int boe_panel_disable(struct drm_panel *panel)
>   
>   	mipi_dsi_msleep(&ctx, 150);
>   
> +	boe->dsi->mode_flags |= MIPI_DSI_MODE_LPM;
> +
>   	return ctx.accum_err;
>   }
>   

Could you add a Fixes tag ?

Neil