linux-kernel - Re: [PATCH V4 5/9] mtd: replace the hardcode with the onfi

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Date:	Thu, 2 May 2013 10:14:49 +0800
From:	Huang Shijie <b32955@...escale.com>
To:	"Gupta, Pekon" <pekon@...com>
CC:	"computersforpeace@...il.com" <computersforpeace@...il.com>,
	"linux-mtd@...ts.infradead.org" <linux-mtd@...ts.infradead.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"dedekind1@...il.com" <dedekind1@...il.com>,
	"dwmw2@...radead.org" <dwmw2@...radead.org>
Subject: Re: [PATCH V4 5/9] mtd: replace the hardcode with the onfi_feature()

于 2013年04月30日 18:04, Gupta, Pekon 写道:
>> -	*busw = 0;
>> -	if (le16_to_cpu(p->features)&  1)
>> -		*busw = NAND_BUSWIDTH_16;
>> +
>> +	*busw = (onfi_feature(chip)&  ONFI_FEATURE_16_BIT_BUS) ?
>> +			NAND_BUSWIDTH_16 : 0;
> Is this really needed ? you have already checked the 'onfi_version' above in
> nand_flash_detect_onfi() ..
> 	if (!chip->onfi_version) {
> 		pr_info("%s: unsupported ONFI version: %d\n", __func__, val);
> 		return 0;
> 	}
>
>
I think checking the onfi_version has no relationship with this patch. :)
This patch is just replace the hardcode for 16-bit onfi nand check.


thanks
Huang Shijie


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