diff options
Diffstat (limited to 'drivers/crypto/img-hash.c')
| -rw-r--r-- | drivers/crypto/img-hash.c | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/drivers/crypto/img-hash.c b/drivers/crypto/img-hash.c index f8abbe3bc51c..2622c0174232 100644 --- a/drivers/crypto/img-hash.c +++ b/drivers/crypto/img-hash.c @@ -1016,11 +1016,38 @@ static int img_hash_remove(struct platform_device *pdev) return 0; } +#ifdef CONFIG_PM_SLEEP +static int img_hash_suspend(struct device *dev) +{ + struct img_hash_dev *hdev = dev_get_drvdata(dev); + + clk_disable_unprepare(hdev->hash_clk); + clk_disable_unprepare(hdev->sys_clk); + + return 0; +} + +static int img_hash_resume(struct device *dev) +{ + struct img_hash_dev *hdev = dev_get_drvdata(dev); + + clk_prepare_enable(hdev->hash_clk); + clk_prepare_enable(hdev->sys_clk); + + return 0; +} +#endif /* CONFIG_PM_SLEEP */ + +static const struct dev_pm_ops img_hash_pm_ops = { + SET_SYSTEM_SLEEP_PM_OPS(img_hash_suspend, img_hash_resume) +}; + static struct platform_driver img_hash_driver = { .probe = img_hash_probe, .remove = img_hash_remove, .driver = { .name = "img-hash-accelerator", + .pm = &img_hash_pm_ops, .of_match_table = of_match_ptr(img_hash_match), } }; |