linux-kernel - Re: [PATCH RESEND 05/12] mmc: sdhci-pxav3: Remove checks for mandatory host clock

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Date:	Mon, 27 Oct 2014 14:39:42 +0100
From:	Ulf Hansson <ulf.hansson@...aro.org>
To:	Sebastian Hesselbarth <sebastian.hesselbarth@...il.com>
Cc:	Chris Ball <chris@...ntf.net>,
	Antoine Ténart <antoine.tenart@...e-electrons.com>,
	linux-mmc <linux-mmc@...r.kernel.org>,
	"devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
	"linux-arm-kernel@...ts.infradead.org" 
	<linux-arm-kernel@...ts.infradead.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH RESEND 05/12] mmc: sdhci-pxav3: Remove checks for
 mandatory host clock

On 21 October 2014 11:22, Sebastian Hesselbarth
<sebastian.hesselbarth@...il.com> wrote:
> NULL-checking a struct clk it not only wrong but also not required as
> for PXAv3 driver the corresponding clock is mandatory. Remove the
> checks from sdhci_pxav3_runtime_{suspend,resume}.
>
> Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@...il.com>

Thanks! Applied for next!

Kind regards
Uffe


> ---
> Cc: Chris Ball <chris@...ntf.net>
> Cc: Ulf Hansson <ulf.hansson@...aro.org>
> Cc: "Antoine Ténart" <antoine.tenart@...e-electrons.com>
> Cc: linux-mmc@...r.kernel.org
> Cc: devicetree@...r.kernel.org
> Cc: linux-arm-kernel@...ts.infradead.org
> Cc: linux-kernel@...r.kernel.org
> ---
>  drivers/mmc/host/sdhci-pxav3.c | 20 ++++++++------------
>  1 file changed, 8 insertions(+), 12 deletions(-)
>
> diff --git a/drivers/mmc/host/sdhci-pxav3.c b/drivers/mmc/host/sdhci-pxav3.c
> index d1f63d32b2cd..e52bbbb09d88 100644
> --- a/drivers/mmc/host/sdhci-pxav3.c
> +++ b/drivers/mmc/host/sdhci-pxav3.c
> @@ -448,13 +448,11 @@ static int sdhci_pxav3_runtime_suspend(struct device *dev)
>         struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host);
>         unsigned long flags;
>
> -       if (pltfm_host->clk) {
> -               spin_lock_irqsave(&host->lock, flags);
> -               host->runtime_suspended = true;
> -               spin_unlock_irqrestore(&host->lock, flags);
> +       spin_lock_irqsave(&host->lock, flags);
> +       host->runtime_suspended = true;
> +       spin_unlock_irqrestore(&host->lock, flags);
>
> -               clk_disable_unprepare(pltfm_host->clk);
> -       }
> +       clk_disable_unprepare(pltfm_host->clk);
>
>         return 0;
>  }
> @@ -465,13 +463,11 @@ static int sdhci_pxav3_runtime_resume(struct device *dev)
>         struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host);
>         unsigned long flags;
>
> -       if (pltfm_host->clk) {
> -               clk_prepare_enable(pltfm_host->clk);
> +       clk_prepare_enable(pltfm_host->clk);
>
> -               spin_lock_irqsave(&host->lock, flags);
> -               host->runtime_suspended = false;
> -               spin_unlock_irqrestore(&host->lock, flags);
> -       }
> +       spin_lock_irqsave(&host->lock, flags);
> +       host->runtime_suspended = false;
> +       spin_unlock_irqrestore(&host->lock, flags);
>
>         return 0;
>  }
> --
> 2.1.1
>
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