[PATCH v3 01/56] drm/dsi: add MIPI_DSI_MODE_ULPS_IDLE

[Laurent Pinchart]

Hi Tomi and Sebastian,

Thank you for the patch.

On Thu, Nov 05, 2020 at 02:02:38PM +0200, Tomi Valkeinen wrote:
> From: Sebastian Reichel <sebastian.reichel at collabora.com>
> 
> DSI command mode panels are self-refreshing displays, that
> can be updated very rarely for static images. For this kind
> of scenario some panels support, that the DSI bus switches
> into ULPS mode until the panel needs to be refreshed.
> 
> This is problematic on some panels, so introduce a flag to
> signal the DSI host implementation that the panel allows
> going into ULPS mode.
> 
> Signed-off-by: Sebastian Reichel <sebastian.reichel at collabora.com>
> Signed-off-by: Tomi Valkeinen <tomi.valkeinen at ti.com>

Reviewed-by: Laurent Pinchart <laurent.pinchart at ideasonboard.com>

> ---
>  include/drm/drm_mipi_dsi.h | 2 ++
>  1 file changed, 2 insertions(+)
> 
> diff --git a/include/drm/drm_mipi_dsi.h b/include/drm/drm_mipi_dsi.h
> index 360e6377e84b..f36f89c14b4a 100644
> --- a/include/drm/drm_mipi_dsi.h
> +++ b/include/drm/drm_mipi_dsi.h
> @@ -132,6 +132,8 @@ struct mipi_dsi_host *of_find_mipi_dsi_host_by_node(struct device_node *node);
>  #define MIPI_DSI_CLOCK_NON_CONTINUOUS	BIT(10)
>  /* transmit data in low power */
>  #define MIPI_DSI_MODE_LPM		BIT(11)
> +/* allow going into ULPS mode while command mode panel is not updated */
> +#define MIPI_DSI_MODE_ULPS_IDLE		BIT(12)
>  
>  enum mipi_dsi_pixel_format {
>  	MIPI_DSI_FMT_RGB888,

-- 
Regards,

Laurent Pinchart