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mmc: sh_mmcif: Simplify calculation of mmc->f_min

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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 <[email protected]>
Acked-by: Guennadi Liakhovetski <[email protected]>
Tested-by: Cao Minh Hiep <[email protected]>
Signed-off-by: Simon Horman <[email protected]>
Signed-off-by: Chris Ball <[email protected]>
This commit is contained in:
Simon Horman 2012-03-28 18:01:11 +09:00 • committed by Chris Ball
commit eb91b9118d
1 changed files with 1 additions and 7 deletions
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8
drivers/mmc/host/sh_mmcif.c
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@ -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;