Re: [PATCH] spi: pl022: Add clk_{un}prepare() support in runtime PM

From: viresh kumar
Date: Mon Sep 17 2012 - 06:50:42 EST


On Mon, Sep 17, 2012 at 4:07 PM, Vipul Kumar Samar
<vipulkumar.samar@xxxxxx> wrote:
> clk_{un}prepare is mandatory for platforms using common clock framework. Add
> clk_{un}prepare() support for spi-pl022 runtime PM.

You are not calling these routines in actualy patch.. Fix commit log and add my
Reviewed-by.

> Signed-off-by: Vipul Kumar Samar <vipulkumar.samar@xxxxxx>
> ---
> drivers/spi/spi-pl022.c | 9 ++++++---
> 1 files changed, 6 insertions(+), 3 deletions(-)
>
> diff --git a/drivers/spi/spi-pl022.c b/drivers/spi/spi-pl022.c
> index f2a80ff..500e75e 100644
> --- a/drivers/spi/spi-pl022.c
> +++ b/drivers/spi/spi-pl022.c
> @@ -2334,7 +2334,7 @@ static int pl022_runtime_suspend(struct device *dev)
> {
> struct pl022 *pl022 = dev_get_drvdata(dev);
>
> - clk_disable(pl022->clk);
> + clk_disable_unprepare(pl022->clk);
>
> return 0;
> }
> @@ -2342,10 +2342,13 @@ static int pl022_runtime_suspend(struct device *dev)
> static int pl022_runtime_resume(struct device *dev)
> {
> struct pl022 *pl022 = dev_get_drvdata(dev);
> + int ret = 0;
>
> - clk_enable(pl022->clk);
> + ret = clk_prepare_enable(pl022->clk);
> + if (ret)
> + dev_err(dev, "could not enable SSP/SPI bus clock\n");
>
> - return 0;
> + return ret;
> }
> #endif
>
> --
> 1.7.2.2
>
>
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