From: Heiko Stuebner <he...@sntech.de>

commit d922d58fedcd98ba625e89b625a98e222b090b10 upstream.

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: sta...@vger.kernel.org # 5.10+
Signed-off-by: Heiko Stuebner <he...@sntech.de>
Tested-by: Ezequiel Garcia <ezequ...@collabora.com>
Reviewed-by: Christopher Morgan <macromor...@hotmail.com>
Link: 
https://patchwork.freedesktop.org/patch/msgid/20210206135020.1991820-1-he...@sntech.de
Signed-off-by: Maarten Lankhorst <maarten.lankho...@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gre...@linuxfoundation.org>
---
 drivers/gpu/drm/panel/panel-elida-kd35t133.c |    3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

--- 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_ds
        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);


Reply via email to