On 07/27/2018 02:23 PM, Arun Parameswaran wrote:
> Add support for suspend and resume to the Broadcom iProc mdio
> mux driver.
>
> Signed-off-by: Arun Parameswaran <arun.parameswaran@xxxxxxxxxxxx>
> ---
> drivers/net/phy/mdio-mux-bcm-iproc.c | 28 ++++++++++++++++++++++++++++
> 1 file changed, 28 insertions(+)
>
> diff --git a/drivers/net/phy/mdio-mux-bcm-iproc.c b/drivers/net/phy/mdio-mux-bcm-iproc.c
> index 51d1003..d89dce0 100644
> --- a/drivers/net/phy/mdio-mux-bcm-iproc.c
> +++ b/drivers/net/phy/mdio-mux-bcm-iproc.c
> @@ -290,6 +290,33 @@ static int mdio_mux_iproc_remove(struct platform_device *pdev)
> return 0;
> }
>
> +#ifdef CONFIG_PM_SLEEP
> +static int mdio_mux_iproc_suspend(struct device *dev)
> +{
> + struct iproc_mdiomux_desc *md = dev_get_drvdata(dev);
> +
> + if (md->core_clk)
> + clk_disable_unprepare(md->core_clk);
Since you are assigning md->core_clk to NULL in case clk_get() returned
an error, checking for md->core_clk is not necessary since the Linux
common clock framework perform that NULL check already.
--
--
Florian
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