drm: sun4i: Add support for suspending the display driver
Shut down the display engine during suspend. Signed-off-by: Ondrej Jirman <megous@megous.com> Signed-off-by: Maxime Ripard <maxime@cerno.tech> Link: https://patchwork.freedesktop.org/patch/msgid/20191029112846.3604925-1-megous@megous.com
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@ -346,6 +346,27 @@ static int sun4i_drv_add_endpoints(struct device *dev,
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return count;
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return count;
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}
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}
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#ifdef CONFIG_PM_SLEEP
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static int sun4i_drv_drm_sys_suspend(struct device *dev)
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{
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struct drm_device *drm = dev_get_drvdata(dev);
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return drm_mode_config_helper_suspend(drm);
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}
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static int sun4i_drv_drm_sys_resume(struct device *dev)
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{
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struct drm_device *drm = dev_get_drvdata(dev);
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return drm_mode_config_helper_resume(drm);
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}
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#endif
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static const struct dev_pm_ops sun4i_drv_drm_pm_ops = {
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SET_SYSTEM_SLEEP_PM_OPS(sun4i_drv_drm_sys_suspend,
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sun4i_drv_drm_sys_resume)
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};
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static int sun4i_drv_probe(struct platform_device *pdev)
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static int sun4i_drv_probe(struct platform_device *pdev)
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{
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{
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struct component_match *match = NULL;
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struct component_match *match = NULL;
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@ -418,6 +439,7 @@ static struct platform_driver sun4i_drv_platform_driver = {
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.driver = {
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.driver = {
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.name = "sun4i-drm",
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.name = "sun4i-drm",
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.of_match_table = sun4i_drv_of_table,
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.of_match_table = sun4i_drv_of_table,
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.pm = &sun4i_drv_drm_pm_ops,
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},
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},
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};
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};
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module_platform_driver(sun4i_drv_platform_driver);
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module_platform_driver(sun4i_drv_platform_driver);
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