From: Heiko Stuebner heiko@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: 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... Signed-off-by: Maarten Lankhorst maarten.lankhorst@linux.intel.com Signed-off-by: Greg Kroah-Hartman gregkh@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);