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* [PATCH v2] drm: sun4i: Add support for suspending the display driver
@ 2019-10-29 11:28 ` Ondrej Jirman
  0 siblings, 0 replies; 12+ messages in thread
From: Ondrej Jirman @ 2019-10-29 11:28 UTC (permalink / raw)
  To: linux-sunxi
  Cc: Ondrej Jirman, Maxime Ripard, Chen-Yu Tsai, David Airlie,
	Daniel Vetter, open list:DRM DRIVERS FOR ALLWINNER A10,
	moderated list:ARM/Allwinner sunXi SoC support, open list

Shut down the display engine during suspend.

Signed-off-by: Ondrej Jirman <megous@megous.com>
---
Changes in v2:
- spaces -> tabs

 drivers/gpu/drm/sun4i/sun4i_drv.c | 22 ++++++++++++++++++++++
 1 file changed, 22 insertions(+)

diff --git a/drivers/gpu/drm/sun4i/sun4i_drv.c b/drivers/gpu/drm/sun4i/sun4i_drv.c
index a5757b11b730..c519d7cfcf43 100644
--- a/drivers/gpu/drm/sun4i/sun4i_drv.c
+++ b/drivers/gpu/drm/sun4i/sun4i_drv.c
@@ -346,6 +346,27 @@ static int sun4i_drv_add_endpoints(struct device *dev,
 	return count;
 }
 
+#ifdef CONFIG_PM_SLEEP
+static int sun4i_drv_drm_sys_suspend(struct device *dev)
+{
+	struct drm_device *drm = dev_get_drvdata(dev);
+
+	return drm_mode_config_helper_suspend(drm);
+}
+
+static int sun4i_drv_drm_sys_resume(struct device *dev)
+{
+	struct drm_device *drm = dev_get_drvdata(dev);
+
+	return drm_mode_config_helper_resume(drm);
+}
+#endif
+
+static const struct dev_pm_ops sun4i_drv_drm_pm_ops = {
+	SET_SYSTEM_SLEEP_PM_OPS(sun4i_drv_drm_sys_suspend,
+				sun4i_drv_drm_sys_resume)
+};
+
 static int sun4i_drv_probe(struct platform_device *pdev)
 {
 	struct component_match *match = NULL;
@@ -418,6 +439,7 @@ static struct platform_driver sun4i_drv_platform_driver = {
 	.driver		= {
 		.name		= "sun4i-drm",
 		.of_match_table	= sun4i_drv_of_table,
+		.pm = &sun4i_drv_drm_pm_ops,
 	},
 };
 module_platform_driver(sun4i_drv_platform_driver);
-- 
2.23.0


^ permalink raw reply related	[flat|nested] 12+ messages in thread

end of thread, other threads:[~2019-11-04 17:42 UTC | newest]

Thread overview: 12+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2019-10-29 11:28 [PATCH v2] drm: sun4i: Add support for suspending the display driver Ondrej Jirman
2019-10-29 11:28 ` Ondrej Jirman
2019-10-29 11:28 ` Ondrej Jirman
2019-10-29 11:28 ` Ondrej Jirman
2019-10-31  9:51 ` Maxime Ripard
2019-10-31  9:51   ` Maxime Ripard
2019-10-31  9:51   ` Maxime Ripard
2019-10-31  9:51   ` Maxime Ripard
2019-11-04 17:42 ` Daniel Vetter
2019-11-04 17:42   ` Daniel Vetter
2019-11-04 17:42   ` Daniel Vetter
2019-11-04 17:42   ` Daniel Vetter

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