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Date: Mon, 5 Apr 2010 12:43:11 -0500 From: "Madhusudhan" <madhu.cr@...com> To: "'Madhusudhan'" <madhu.cr@...com>, <me@...ipebalbi.com>, "'kishore kadiyala'" <kishorek.kadiyala@...il.com> Cc: "'Vimal Singh'" <vimal.newwork@...il.com>, <tony@...mide.com>, <svenkatr@...com>, <linux-omap@...r.kernel.org>, <linux-kernel@...r.kernel.org>, <jarkko.lavinen@...ia.com> Subject: RE: [PATCH v3] OMAP: Fix for bus width which improves SD card's peformance. > -----Original Message----- > From: linux-omap-owner@...r.kernel.org [mailto:linux-omap- > owner@...r.kernel.org] On Behalf Of Madhusudhan > Sent: Monday, April 05, 2010 12:19 PM > To: me@...ipebalbi.com; 'kishore kadiyala' > Cc: 'Vimal Singh'; tony@...mide.com; svenkatr@...com; linux- > omap@...r.kernel.org; linux-kernel@...r.kernel.org; > jarkko.lavinen@...ia.com > Subject: RE: [PATCH v3] OMAP: Fix for bus width which improves SD card's > peformance. > > > > > -----Original Message----- > > From: Felipe Balbi [mailto:me@...ipebalbi.com] > > Sent: Monday, April 05, 2010 11:49 AM > > To: kishore kadiyala > > Cc: Madhusudhan; Vimal Singh; tony@...mide.com; svenkatr@...com; linux- > > omap@...r.kernel.org; linux-kernel@...r.kernel.org; > > jarkko.lavinen@...ia.com > > Subject: Re: [PATCH v3] OMAP: Fix for bus width which improves SD card's > > peformance. > > > > Hi, > > > > On Mon, Apr 05, 2010 at 06:26:16PM +0530, kishore kadiyala wrote: > > > @@ -2091,9 +2091,9 @@ static int __init omap_hsmmc_probe(struct > > > mmc->caps |= MMC_CAP_MMC_HIGHSPEED | MMC_CAP_SD_HIGHSPEED | > > > MMC_CAP_WAIT_WHILE_BUSY; > > > > > > - if (mmc_slot(host).wires >= 8) > > > - mmc->caps |= MMC_CAP_8_BIT_DATA; > > > - else if (mmc_slot(host).wires >= 4) > > > + if (mmc_slot(host).wires == 8) > > > + mmc->caps |= (MMC_CAP_8_BIT_DATA | MMC_CAP_4_BIT_DATA); > > > + else if (mmc_slot(host).wires == 4) > > > mmc->caps |= MMC_CAP_4_BIT_DATA; > > > > I believe it would be enough to just remove the 'else', so the code > > would look like: > > > > if (mmc_slot(host).wires >= 8) > > mmc->caps |= MMC_CAP_8_BIT_DATA; > > if (mmc_slot(host).wires >= 4) > > Since the first if command already checks for the 8-bit the second check > like >= 4 is definitely not readable in my opinion. > > Functionally do you see anything wrong with this patch?? > Just to clarify my earlier comment on the patch was to resubmit like below: if (mmc_slot(host).wires == 8) mmc->caps |= (MMC_CAP_8_BIT_DATA | MMC_CAP_4_BIT_DATA); if (mmc_slot(host).wires == 4) mmc->caps |= MMC_CAP_4_BIT_DATA; IMHO, this should be good enough. Regards, Madhu > > mmc->caps |= MMC_CAP_4_BIT_DATA; > > > > -- > > balbi > > -- > To unsubscribe from this list: send the line "unsubscribe linux-omap" in > the body of a message to majordomo@...r.kernel.org > More majordomo info at http://vger.kernel.org/majordomo-info.html -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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