linux-kernel - Re: [PATCH v2 2/2] mmc: mxcmmc: fix the default value for available voltages into mxcmci

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Date:	Mon, 27 Oct 2014 11:23:47 +0100
From:	Matteo Facchinetti <matteo.facchinetti@...ius-es.it>
To:	chris@...ntf.net, ulf.hansson@...aro.org
CC:	shc_work@...l.ru, s.hauer@...gutronix.de, peter.griffin@...aro.org,
	linux-mmc@...r.kernel.org, linux-kernel@...r.kernel.org,
	agust@...x.de, gsi@...x.de, sbabic@...x.de
Subject: Re: [PATCH v2 2/2] mmc: mxcmmc: fix the default value for available
 voltages into mxcmci_probe

This patch was reviewed, and seems that work it's complete.

Can you merge?


On 08/10/2014 16:24, Matteo Facchinetti wrote:
> From: Matteo Facchinetti <matteo.facchinetti@...ius-es.it>
>
> If available voltages are not given, mmc_regulator_get_supply() function
> returns 0 and mxcmmc driver doesn't set a value for ocr_avail mask.
>
> In accordance with the comment in platform_data/mmc-mxcmmc.h,
> fix it, assuming MMC_VDD_32_33 | MMC_VDD_33_34 as default value.
>
> Signed-off-by: Matteo Facchinetti <matteo.facchinetti@...ius-es.it>
> ---
> v2:
> * Add test to check if mmc->ocr_avail is setted by mmc_regulator_get_supply().
>    This will prevent that it be overwritten unconditionally.
> ---
>   drivers/mmc/host/mxcmmc.c | 12 +++++++-----
>   1 file changed, 7 insertions(+), 5 deletions(-)
>
> diff --git a/drivers/mmc/host/mxcmmc.c b/drivers/mmc/host/mxcmmc.c
> index 536a898..5316d9b 100644
> --- a/drivers/mmc/host/mxcmmc.c
> +++ b/drivers/mmc/host/mxcmmc.c
> @@ -1077,12 +1077,14 @@ static int mxcmci_probe(struct platform_device *pdev)
>   		dat3_card_detect = true;
>   
>   	ret = mmc_regulator_get_supply(mmc);
> -	if (ret) {
> -		if (pdata && ret != -EPROBE_DEFER)
> -			mmc->ocr_avail = pdata->ocr_avail ? :
> -				MMC_VDD_32_33 | MMC_VDD_33_34;
> +	if (ret == -EPROBE_DEFER)
> +		goto out_free;
> +
> +	if (!mmc->ocr_avail) {
> +		if (pdata && pdata->ocr_avail)
> +			mmc->ocr_avail = pdata->ocr_avail;
>   		else
> -			goto out_free;
> +			mmc->ocr_avail = MMC_VDD_32_33 | MMC_VDD_33_34;
>   	}
>   
>   	if (dat3_card_detect)

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