Turn off the panel power in suspend time would help to reduce power waste.
Signed-off-by: Yakir Yang ykk@rock-chips.com --- Changes in v12: None Changes in v11: None Changes in v10: None Changes in v9: None Changes in v8: None Changes in v7: None Changes in v6: None Changes in v5: None Changes in v4: None Changes in v3: None Changes in v2: None
drivers/gpu/drm/bridge/analogix/analogix_dp_core.c | 13 +++++++++++++ 1 file changed, 13 insertions(+)
diff --git a/drivers/gpu/drm/bridge/analogix/analogix_dp_core.c b/drivers/gpu/drm/bridge/analogix/analogix_dp_core.c index a86a283..1e98489 100644 --- a/drivers/gpu/drm/bridge/analogix/analogix_dp_core.c +++ b/drivers/gpu/drm/bridge/analogix/analogix_dp_core.c @@ -1400,6 +1400,12 @@ int analogix_dp_suspend(struct device *dev) struct analogix_dp_device *dp = dev_get_drvdata(dev);
clk_disable_unprepare(dp->clock); + + if (dp->plat_data->panel) { + if (drm_panel_unprepare(dp->plat_data->panel)) + DRM_ERROR("failed to turnoff the panel\n"); + } + return 0; } EXPORT_SYMBOL_GPL(analogix_dp_suspend); @@ -1415,6 +1421,13 @@ int analogix_dp_resume(struct device *dev) return ret; }
+ if (dp->plat_data->panel) { + if (drm_panel_prepare(dp->plat_data->panel)) { + DRM_ERROR("failed to setup the panel\n"); + return -EBUSY; + } + } + return 0; } EXPORT_SYMBOL_GPL(analogix_dp_resume);