RE: [PATCH v3 3/8] mmc: dw_mmc: replace the bus_hz checking point

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Hi Jaehoon,

Please check minor thing below.

On Mon, February 03, 2014, Jaehoon Chung wrote:
> It's right that check immediately whether host->bus_hz is assigned or not.
> 
> Signed-off-by: Jaehoon Chung <jh80.chung@xxxxxxxxxxx>
> ---
> Changelog V3:
> 	- Maintained original place for the drv_data->setup_clock
> Changelog V2:
> 	- When drv_data->setup_clock is present, set to bus_hz with it.
> 
>  drivers/mmc/host/dw_mmc.c |   22 ++++++++++------------
>  1 file changed, 10 insertions(+), 12 deletions(-)
> 
> diff --git a/drivers/mmc/host/dw_mmc.c b/drivers/mmc/host/dw_mmc.c
> index 8193e21..e7357b8 100644
> --- a/drivers/mmc/host/dw_mmc.c
> +++ b/drivers/mmc/host/dw_mmc.c
> @@ -2427,12 +2427,19 @@ int dw_mci_probe(struct dw_mci *host)
>  			ret = clk_set_rate(host->ciu_clk, host->pdata->bus_hz);
>  			if (ret)
>  				dev_warn(host->dev,
> -					 "Unable to set bus rate to %ul\n",
> +					 "Unable to set bus rate to %uHz\n",
>  					 host->pdata->bus_hz);
>  		}
>  		host->bus_hz = clk_get_rate(host->ciu_clk);
>  	}
> 
> +	if (!host->bus_hz) {
> +		dev_err(host->dev,
> +			"Platform data must supply bus speed\n");
> +		ret = -ENODEV;
> +		goto err_clk_ciu;
> +	}
> +
>  	if (drv_data && drv_data->init) {
>  		ret = drv_data->init(host);
>  		if (ret) {
> @@ -2445,8 +2452,8 @@ int dw_mci_probe(struct dw_mci *host)
>  	if (drv_data && drv_data->setup_clock) {
>  		ret = drv_data->setup_clock(host);
>  		if (ret) {
> -			dev_err(host->dev,
> -				"implementation specific clock setup failed\n");
> +			dev_err(host->dev, "implementation specific "
> +				"clock setup failed\n");
Rather, this change makes cherry-pick warning.
Keep it.

Thanks,
Seungwon Jeon
>  			goto err_clk_ciu;
>  		}
>  	}
> @@ -2469,13 +2476,6 @@ int dw_mci_probe(struct dw_mci *host)
>  		}
>  	}
> 
> -	if (!host->bus_hz) {
> -		dev_err(host->dev,
> -			"Platform data must supply bus speed\n");
> -		ret = -ENODEV;
> -		goto err_regulator;
> -	}
> -
>  	host->quirks = host->pdata->quirks;
> 
>  	spin_lock_init(&host->lock);
> @@ -2619,8 +2619,6 @@ err_workqueue:
>  err_dmaunmap:
>  	if (host->use_dma && host->dma_ops->exit)
>  		host->dma_ops->exit(host);
> -
> -err_regulator:
>  	if (host->vmmc)
>  		regulator_disable(host->vmmc);
> 
> --
> 1.7.9.5
> --
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