[PATCH v8 16/34] drm/tegra: vic: Support system suspend

Dmitry Osipenko
2021-08-17T01:32:38Z

Hardware must be stopped before system is suspended. Add suspend-resume
callbacks.

Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
---
drivers/gpu/drm/tegra/vic.c | 4 ++++
1 file changed, 4 insertions(+)

diff --git a/drivers/gpu/drm/tegra/vic.c b/drivers/gpu/drm/tegra/vic.c
index c02010ff2b7f..359dd77f8b85 100644
--- a/drivers/gpu/drm/tegra/vic.c
+++ b/drivers/gpu/drm/tegra/vic.c
@@ -315,6 +315,8 @@ static int vic_runtime_suspend(struct device *dev)
struct vic *vic = dev_get_drvdata(dev);
int err;

+ host1x_channel_stop(vic->channel);
+
err = reset_control_assert(vic->rst);
if (err < 0)
return err;
@@ -517,6 +519,8 @@ static int vic_remove(struct platform_device *pdev)

static const struct dev_pm_ops vic_pm_ops = {
SET_RUNTIME_PM_OPS(vic_runtime_suspend, vic_runtime_resume, NULL)
+ SET_SYSTEM_SLEEP_PM_OPS(pm_runtime_force_suspend,
+ pm_runtime_force_resume)
};

struct platform_driver tegra_vic_driver = {
--
2.32.0