Re: [PATCH v3] OMAP: Fix for bus width which improves SD card'speformance.

From: Felipe Balbi
Date: Tue Apr 06 2010 - 01:00:15 EST


On Mon, Apr 05, 2010 at 12:19:29PM -0500, Madhusudhan wrote:
> Since the first if command already checks for the 8-bit the second check
> like >= 4 is definitely not readable in my opinion.

how come ???

> Functionally do you see anything wrong with this patch??

functionally no, but (hypothetical situation) and if on
omap4/5/6/whatever, omap controller supports a bigger bus width then
you'll have to add a line like:

+ if (mmc_slot(host).wires == 16)
+ mmc->caps |= (MMC_CAP_16_BIT_DATA | MMC_CAP_8_BIT_DATA |
- if (mmc_slot(host).wires == 8)
+ else if (mmc_slot(host).wires == 8)

do you see the problem ?? In my opinion it doesn't scale well.

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