check the attachment out.. hope that takes care of it.. just as a reference alone ofcourse..
-----Original Message-----Well, I did not comment on the usage of switch here. Note we only need to
From: Felipe Balbi [mailto:felipe.balbi@xxxxxxxxx]
Sent: Tuesday, April 06, 2010 11:57 AM
To: ext Nishanth Menon
Cc: Balbi Felipe (Nokia-D/Helsinki); Chikkature Rajashekar, Madhusudhan;
me@xxxxxxxxxxxxxxx; 'kishore kadiyala'; 'Vimal Singh'; tony@xxxxxxxxxxx;
S, Venkatraman; linux-omap@xxxxxxxxxxxxxxx; linux-kernel@xxxxxxxxxxxxxxx;
Lavinen Jarkko (Nokia-D/Helsinki)
Subject: Re: [PATCH v3] OMAP: Fix for bus width which improves SD card's
peformance.
On Tue, Apr 06, 2010 at 06:55:03PM +0200, ext Nishanth Menon wrote:some reasons why i love switch statements ;) since I dont expect otherI like that, but I remember Madhu (or someone else) saying he thinks
than precisely 4 and 8 (do we expect 5,6,7 - i might be wrong).. but if
it is so, wont the following be better?
switch (mmc_slot(host).wires)
{
case 8:
mmc->caps |= MMC_CAP_8_BIT_DATA;
/* fall thru*/
case 4:
mmc->caps |= MMC_CAP_4_BIT_DATA;
break;
default:
WARN("bad width");
}
it's less readable this way. Go figure...
handle 8-bit and 4-bit.The board files need not setup 8-bit or 4-bit if the
configuration of that board is 1-bit. The driver will still work in 1-bit
mode which would mean there is nothing to do in default case and should not
err out.