diff options
| author | Simon Horman <horms@verge.net.au> | 2012-03-28 11:01:11 +0200 |
|---|---|---|
| committer | Chris Ball <cjb@laptop.org> | 2012-04-06 02:32:24 +0200 |
| commit | eb91b9118db8c05a5a1257b594b021d32b491254 (patch) | |
| tree | 59d946917c73b372dee2162b25eaa4f8c3d94816 /drivers/mmc/host/sh_mmcif.c | |
| parent | mmc: sh_mmcif: mmc->f_max should be half of the bus clock (diff) | |
| download | linux-eb91b9118db8c05a5a1257b594b021d32b491254.tar.xz linux-eb91b9118db8c05a5a1257b594b021d32b491254.zip | |
mmc: sh_mmcif: Simplify calculation of mmc->f_min
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>
Diffstat (limited to '')
| -rw-r--r-- | drivers/mmc/host/sh_mmcif.c | 8 |
1 files changed, 1 insertions, 7 deletions
diff --git a/drivers/mmc/host/sh_mmcif.c b/drivers/mmc/host/sh_mmcif.c index 4bb999ed335d..724b35e85a26 100644 --- a/drivers/mmc/host/sh_mmcif.c +++ b/drivers/mmc/host/sh_mmcif.c @@ -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; |