diff options
Diffstat (limited to 'drivers/char/hw_random/npcm-rng.c')
| -rw-r--r-- | drivers/char/hw_random/npcm-rng.c | 15 |
1 files changed, 6 insertions, 9 deletions
diff --git a/drivers/char/hw_random/npcm-rng.c b/drivers/char/hw_random/npcm-rng.c index 9903d0357e06..40d6e29dea03 100644 --- a/drivers/char/hw_random/npcm-rng.c +++ b/drivers/char/hw_random/npcm-rng.c @@ -8,12 +8,11 @@ #include <linux/init.h> #include <linux/random.h> #include <linux/err.h> +#include <linux/of.h> #include <linux/platform_device.h> #include <linux/hw_random.h> #include <linux/delay.h> -#include <linux/of_irq.h> #include <linux/pm_runtime.h> -#include <linux/of_device.h> #define NPCM_RNGCS_REG 0x00 /* Control and status register */ #define NPCM_RNGD_REG 0x04 /* Data register */ @@ -33,6 +32,7 @@ struct npcm_rng { void __iomem *base; struct hwrng rng; + struct device *dev; u32 clkp; }; @@ -58,7 +58,7 @@ static int npcm_rng_read(struct hwrng *rng, void *buf, size_t max, bool wait) int retval = 0; int ready; - pm_runtime_get_sync((struct device *)priv->rng.priv); + pm_runtime_get_sync(priv->dev); while (max) { if (wait) { @@ -80,8 +80,7 @@ static int npcm_rng_read(struct hwrng *rng, void *buf, size_t max, bool wait) max--; } - pm_runtime_mark_last_busy((struct device *)priv->rng.priv); - pm_runtime_put_sync_autosuspend((struct device *)priv->rng.priv); + pm_runtime_put_sync_autosuspend(priv->dev); return retval || !wait ? retval : -EIO; } @@ -110,7 +109,7 @@ static int npcm_rng_probe(struct platform_device *pdev) #endif priv->rng.name = pdev->name; priv->rng.read = npcm_rng_read; - priv->rng.priv = (unsigned long)&pdev->dev; + priv->dev = &pdev->dev; priv->clkp = (u32)(uintptr_t)of_device_get_match_data(&pdev->dev); writel(NPCM_RNG_M1ROSEL, priv->base + NPCM_RNGMODE_REG); @@ -127,15 +126,13 @@ static int npcm_rng_probe(struct platform_device *pdev) return 0; } -static int npcm_rng_remove(struct platform_device *pdev) +static void npcm_rng_remove(struct platform_device *pdev) { struct npcm_rng *priv = platform_get_drvdata(pdev); devm_hwrng_unregister(&pdev->dev, &priv->rng); pm_runtime_disable(&pdev->dev); pm_runtime_set_suspended(&pdev->dev); - - return 0; } #ifdef CONFIG_PM |