Re: [PATCH v3 01/56] drm/dsi: add MIPI_DSI_MODE_ULPS_IDLE
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
>
> 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
> Signed-off-by: Tomi Valkeinen
Reviewed-by: Laurent Pinchart
> ---
> 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_CONTINUOUSBIT(10)
> /* transmit data in low power */
> #define MIPI_DSI_MODE_LPMBIT(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
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[PATCH v3 01/56] drm/dsi: add MIPI_DSI_MODE_ULPS_IDLE
From: Sebastian Reichel
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
Signed-off-by: Tomi Valkeinen
---
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_IDLEBIT(12)
enum mipi_dsi_pixel_format {
MIPI_DSI_FMT_RGB888,
--
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