On 4 November 2014 13:26, Mark Brown <[email protected]> wrote:
> From: Mark Brown <[email protected]>
>
> It is possible that we may fail to set the clock rate, if we do so then
> log the failure and don't bother reprogramming the IP.
>
> Signed-off-by: Mark Brown <[email protected]>
> Acked-by: Jaehoon Chung <[email protected]>
Thanks! Applied for next.
Kind regards
Uffe
> ---
> drivers/mmc/host/sdhci-s3c.c | 8 +++++++-
> 1 file changed, 7 insertions(+), 1 deletion(-)
>
> diff --git a/drivers/mmc/host/sdhci-s3c.c b/drivers/mmc/host/sdhci-s3c.c
> index 0ce6eb17deaf..4f7a63213b33 100644
> --- a/drivers/mmc/host/sdhci-s3c.c
> +++ b/drivers/mmc/host/sdhci-s3c.c
> @@ -300,6 +300,7 @@ static void sdhci_cmu_set_clock(struct sdhci_host *host,
> unsigned int clock)
> struct device *dev = &ourhost->pdev->dev;
> unsigned long timeout;
> u16 clk = 0;
> + int ret;
>
> host->mmc->actual_clock = 0;
>
> @@ -311,7 +312,12 @@ static void sdhci_cmu_set_clock(struct sdhci_host *host,
> unsigned int clock)
>
> sdhci_s3c_set_clock(host, clock);
>
> - clk_set_rate(ourhost->clk_bus[ourhost->cur_clk], clock);
> + ret = clk_set_rate(ourhost->clk_bus[ourhost->cur_clk], clock);
> + if (ret != 0) {
> + dev_err(dev, "%s: failed to set clock rate %uHz\n",
> + mmc_hostname(host->mmc), clock);
> + return;
> + }
>
> clk = SDHCI_CLOCK_INT_EN;
> sdhci_writew(host, clk, SDHCI_CLOCK_CONTROL);
> --
> 2.1.1
>
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