diff options
Diffstat (limited to 'drivers/char/hw_random/iproc-rng200.c')
| -rw-r--r-- | drivers/char/hw_random/iproc-rng200.c | 33 |
1 files changed, 29 insertions, 4 deletions
diff --git a/drivers/char/hw_random/iproc-rng200.c b/drivers/char/hw_random/iproc-rng200.c index 92be1c0ab99f..b2d3da17daa8 100644 --- a/drivers/char/hw_random/iproc-rng200.c +++ b/drivers/char/hw_random/iproc-rng200.c @@ -202,10 +202,12 @@ static int iproc_rng200_probe(struct platform_device *pdev) return PTR_ERR(priv->base); } - priv->rng.name = "iproc-rng200", - priv->rng.read = iproc_rng200_read, - priv->rng.init = iproc_rng200_init, - priv->rng.cleanup = iproc_rng200_cleanup, + dev_set_drvdata(dev, priv); + + priv->rng.name = "iproc-rng200"; + priv->rng.read = iproc_rng200_read; + priv->rng.init = iproc_rng200_init; + priv->rng.cleanup = iproc_rng200_cleanup; /* Register driver */ ret = devm_hwrng_register(dev, &priv->rng); @@ -219,6 +221,28 @@ static int iproc_rng200_probe(struct platform_device *pdev) return 0; } +static int __maybe_unused iproc_rng200_suspend(struct device *dev) +{ + struct iproc_rng200_dev *priv = dev_get_drvdata(dev); + + iproc_rng200_cleanup(&priv->rng); + + return 0; +} + +static int __maybe_unused iproc_rng200_resume(struct device *dev) +{ + struct iproc_rng200_dev *priv = dev_get_drvdata(dev); + + iproc_rng200_init(&priv->rng); + + return 0; +} + +static const struct dev_pm_ops iproc_rng200_pm_ops = { + SET_SYSTEM_SLEEP_PM_OPS(iproc_rng200_suspend, iproc_rng200_resume) +}; + static const struct of_device_id iproc_rng200_of_match[] = { { .compatible = "brcm,bcm7211-rng200", }, { .compatible = "brcm,bcm7278-rng200", }, @@ -231,6 +255,7 @@ static struct platform_driver iproc_rng200_driver = { .driver = { .name = "iproc-rng200", .of_match_table = iproc_rng200_of_match, + .pm = &iproc_rng200_pm_ops, }, .probe = iproc_rng200_probe, }; |