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>
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@ -1400,6 +1400,12 @@ int analogix_dp_suspend(struct device *dev)
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struct analogix_dp_device *dp = dev_get_drvdata(dev);
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clk_disable_unprepare(dp->clock);
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if (dp->plat_data->panel) {
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if (drm_panel_unprepare(dp->plat_data->panel))
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DRM_ERROR("failed to turnoff the panel\n");
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}
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return 0;
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}
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EXPORT_SYMBOL_GPL(analogix_dp_suspend);
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@ -1415,6 +1421,13 @@ int analogix_dp_resume(struct device *dev)
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return ret;
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}
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if (dp->plat_data->panel) {
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if (drm_panel_prepare(dp->plat_data->panel)) {
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DRM_ERROR("failed to setup the panel\n");
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return -EBUSY;
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}
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}
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return 0;
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}
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EXPORT_SYMBOL_GPL(analogix_dp_resume);
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