Minki/linux
1
0
Fork 1
mirror of https://github.com/torvalds/linux.git synced 2024-11-15 16:41:58 +00:00
Code Issues Packages Projects Releases Wiki Activity

mmc: sh_mmcif: Simplify calculation of mmc->f_min

Browse Source 
There is no need to tune mmc->f_min to a value near 400kHz as the MMC core
begins testing frequencies at 400kHz regardless of the value of mmc->f_min.

As suggested by Guennadi Liakhovetski.

Cc: Magnus Damm <magnus.damm@gmail.com>
Acked-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Tested-by: Cao Minh Hiep <hiepcm@gmail.com>
Signed-off-by: Simon Horman <horms@verge.net.au>
Signed-off-by: Chris Ball <cjb@laptop.org>
This commit is contained in:
Simon Horman 2012-03-28 18:01:11 +09:00 committed by Chris Ball
parent 930f152cc9
commit eb91b9118d
1 changed files with 1 additions and 7 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

8
drivers/mmc/host/sh_mmcif.c
View File

@ -1299,13 +1299,7 @@ static int __devinit sh_mmcif_probe(struct platform_device *pdev)
mmc->ops = &sh_mmcif_ops;
mmc->f_max = host->clk / 2;
/* close to 400KHz */
if (host->clk < 51200000)
mmc->f_min = host->clk / 128;
else if (host->clk < 102400000)
mmc->f_min = host->clk / 256;
else
mmc->f_min = host->clk / 512;
mmc->f_min = host->clk / 512;
if (pd->ocr)
mmc->ocr_avail = pd->ocr;
mmc->caps = MMC_CAP_MMC_HIGHSPEED;