diff options
| author | Yakir Yang <ykk@rock-chips.com> | 2016-02-15 14:11:37 +0300 |
|---|---|---|
| committer | Yakir Yang <ykk@rock-chips.com> | 2016-04-05 05:13:10 +0300 |
| commit | 211f276ed3d96e964d2d1106a198c7f4a4b3f4c0 (patch) | |
| tree | bcb3f6d0a6076cf1b636ac9b95ef662dd2377019 | |
| parent | 398a39953493e859d22ac4bece0f4542a3797053 (diff) | |
| download | linux-211f276ed3d96e964d2d1106a198c7f4a4b3f4c0.tar.xz | |
drm: bridge: analogix/dp: add panel prepare/unprepare in suspend/resume time
Turn off the panel power in suspend time would help to reduce
power waste.
Tested-by: Caesar Wang <wxt@rock-chips.com>
Tested-by: Douglas Anderson <dianders@chromium.org>
Tested-by: Heiko Stuebner <heiko@sntech.de>
Tested-by: Javier Martinez Canillas <javier@osg.samsung.com>
Signed-off-by: Yakir Yang <ykk@rock-chips.com>
| -rw-r--r-- | drivers/gpu/drm/bridge/analogix/analogix_dp_core.c | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/drivers/gpu/drm/bridge/analogix/analogix_dp_core.c b/drivers/gpu/drm/bridge/analogix/analogix_dp_core.c index bc59e8d997b3..5292b28aec8a 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); |