Re: [PATCH 2/6] hwrng: atmel: use clk_prepapre_enable/_disable_unprepare

From: Peter Korsgaard
Date: Tue Sep 30 2014 - 12:55:19 EST


>>>>> "Boris" == Boris Brezillon <boris.brezillon@xxxxxxxxxxxxxxxxxx> writes:

> Use clk_prepapre_enable/_disable_unprepare instead of clk_enable/disable
> to work properly with the CCF.

s/prepapre/prepare/

Other than that, looks fine to me.

Acked-by: Peter Korsgaard <peter@xxxxxxxxxxxxx>

> Signed-off-by: Boris Brezillon <boris.brezillon@xxxxxxxxxxxxxxxxxx>
> ---
> drivers/char/hw_random/atmel-rng.c | 8 ++++----
> 1 file changed, 4 insertions(+), 4 deletions(-)

> diff --git a/drivers/char/hw_random/atmel-rng.c b/drivers/char/hw_random/atmel-rng.c
> index 851bc7e..644ec48 100644
> --- a/drivers/char/hw_random/atmel-rng.c
> +++ b/drivers/char/hw_random/atmel-rng.c
> @@ -67,7 +67,7 @@ static int atmel_trng_probe(struct platform_device *pdev)
> if (IS_ERR(trng->clk))
> return PTR_ERR(trng->clk);

> - ret = clk_enable(trng->clk);
> + ret = clk_prepare_enable(trng->clk);
> if (ret)
> return ret;

> @@ -95,7 +95,7 @@ static int atmel_trng_remove(struct platform_device *pdev)
> hwrng_unregister(&trng->rng);

> writel(TRNG_KEY, trng->base + TRNG_CR);
> - clk_disable(trng->clk);
> + clk_disable_unprepare(trng->clk);

> return 0;
> }
> @@ -105,7 +105,7 @@ static int atmel_trng_suspend(struct device *dev)
> {
> struct atmel_trng *trng = dev_get_drvdata(dev);

> - clk_disable(trng->clk);
> + clk_disable_unprepare(trng->clk);

> return 0;
> }
> @@ -114,7 +114,7 @@ static int atmel_trng_resume(struct device *dev)
> {
> struct atmel_trng *trng = dev_get_drvdata(dev);

> - return clk_enable(trng->clk);
> + return clk_prepare_enable(trng->clk);
> }

> static const struct dev_pm_ops atmel_trng_pm_ops = {
> --
> 1.9.1



--
Bye, Peter Korsgaard
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