linux-kernel - Re: [PATCH 32/32] ARM: OMAP: RX51: set MMC capabilities and power-saving flag

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Date:	Mon, 27 Jul 2009 11:58:22 +0300
From:	Adrian Hunter <adrian.hunter@...ia.com>
To:	Matt Fleming <matt@...sole-pimps.org>
CC:	Pierre Ossman <pierre@...man.eu>,
	"Lavinen Jarkko (Nokia-D/Helsinki)" <jarkko.lavinen@...ia.com>,
	"Karpov Denis.2 (EXT-Teleca/Helsinki)" <ext-denis.2.karpov@...ia.com>,
	lkml <linux-kernel@...r.kernel.org>,
	linux-omap Mailing List <linux-omap@...r.kernel.org>
Subject: Re: [PATCH 32/32] ARM: OMAP: RX51: set MMC capabilities and	power-saving
 flag

ext Matt Fleming wrote:
> On Mon, Jul 27, 2009 at 10:58:56AM +0300, Adrian Hunter wrote:
>> Matt Fleming wrote:
>>> On Fri, Jul 10, 2009 at 03:43:53PM +0300, Adrian Hunter wrote:
>>>> >From 3865867159f25cf706480236f6d4f0e4adde5dac Mon Sep 17 00:00:00 2001
>>>> From: Adrian Hunter <adrian.hunter@...ia.com>
>>>> Date: Fri, 10 Jul 2009 10:32:44 +0300
>>>> Subject: [PATCH] ARM: OMAP: RX51: set MMC capabilities and power-saving flag
>>>>
>>>> Specify MMC capabilities and set the power-saving flag
>>>> for RX51.
>>>>
>>> After the changes to [PATCH 7/32], this becomes,
>> I think this will leave every other board that uses omap_hsmmc
>> without any card caps.
>>
> 
> Doh. You're right, good catch!
> 
>> What about adding something like this:
>>
>>
>> diff --git a/drivers/mmc/host/omap_hsmmc.c b/drivers/mmc/host/omap_hsmmc.c
>> index 8900bae..f2548f1 100644
>> --- a/drivers/mmc/host/omap_hsmmc.c
>> +++ b/drivers/mmc/host/omap_hsmmc.c
>> @@ -1720,6 +1720,11 @@ static int __init omap_hsmmc_probe(struct platform_device *pdev)
>> 		mmc->caps |= MMC_CAP_4_BIT_DATA;
>>
>> 	mmc->caps |= mmc_slot(host).caps;
>> +	/* If no card caps specified then assume them all */
>> +	if (!((mmc->caps & MMC_CAP_SD) ||
>> +	      (mmc->caps & MMC_CAP_MMC) ||
>> +	      (mmc->caps & MMC_CAP_SDIO)))
>> +		mmc->caps |= MMC_CAP_SD & MMC_CAP_MMC & MMC_CAP_SDIO;
>>
>> 	omap_hsmmc_conf_bus_power(host);
>>
> 
> Those & should be |
> 
> 	/* If no card caps specified then assume them all */
> 	if (!((mmc->caps & MMC_CAP_SD) ||
> 	      (mmc->caps & MMC_CAP_MMC) ||
> 	      (mmc->caps & MMC_CAP_SDIO)))
> 	        mmc->caps |= MMC_CAP_SD | MMC_CAP_MMC | MMC_CAP_SDIO;
> 
> or more compactly,
> 
> 	/* If no card caps specified then assume them all */
> 	if (!(mmc->caps & (MMC_CAP_SD | MMC_CAP_SDIO | MMC_CAP_MMC)))
> 		mmc->caps |= MMC_CAP_SD | MMC_CAP_MMC | MMC_CAP_SDIO;

Yes much nicer.  Will you add it to your patch?
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