drm/panel: kd35t133: allow using non-continuous dsi clock

The panel is able to work when dsi clock is non-continuous, thus
the system power consumption can be reduced using such feature.

Add MIPI_DSI_CLOCK_NON_CONTINUOUS to panel's mode_flags.

Also the flag actually becomes necessary after
commit c6d94e37bdbb ("drm/bridge/synopsys: dsi: add support for non-continuous HS clock")
and without it the panel only emits stripes instead of output.

Fixes: c6d94e37bdbb ("drm/bridge/synopsys: dsi: add support for non-continuous HS clock")
Cc: stable@vger.kernel.org # 5.10+
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Tested-by: Ezequiel Garcia <ezequiel@collabora.com>
Reviewed-by: Christopher Morgan <macromorgan@hotmail.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20210206135020.1991820-1-heiko@sntech.de
Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>

diff --git a/drivers/gpu/drm/panel/panel-elida-kd35t133.c b/drivers/gpu/drm/panel/panel-elida-kd35t133.c
index bc36aa3..fe5ac3e 100644 (file)
--- a/drivers/gpu/drm/panel/panel-elida-kd35t133.c
+++ b/drivers/gpu/drm/panel/panel-elida-kd35t133.c
@@ -265,7 +265,8 @@ static int kd35t133_probe(struct mipi_dsi_device *dsi)
        dsi->lanes = 1;
        dsi->format = MIPI_DSI_FMT_RGB888;
        dsi->mode_flags = MIPI_DSI_MODE_VIDEO | MIPI_DSI_MODE_VIDEO_BURST |
-                         MIPI_DSI_MODE_LPM | MIPI_DSI_MODE_EOT_PACKET;
+                         MIPI_DSI_MODE_LPM | MIPI_DSI_MODE_EOT_PACKET |
+                         MIPI_DSI_CLOCK_NON_CONTINUOUS;
 
        drm_panel_init(&ctx->panel, &dsi->dev, &kd35t133_funcs,
                       DRM_MODE_CONNECTOR_DSI);