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mmc: omap_hsmmc: introduce start_clock and re-use stop_clock 

There is similar code in two functions which enable the clock.  Refactor
this code to omap_hsmmc_start_clock(). Re-use omap_hsmmc_stop_clock() in
omap_hsmmc_context_restore() as well.

Signed-off-by: Andy Shevchenko <ext-andriy.shevchenko@nokia.com>
Signed-off-by: Adrian Hunter <adrian.hunter@nokia.com>
Signed-off-by: Chris Ball <cjb@laptop.org>
This commit is contained in:
Andy Shevchenko 2011-05-06 12:14:05 +03:00 committed by Chris Ball
parent ac330f44c6
commit e0c7f99b86
1 changed files with 13 additions and 6 deletions
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19
drivers/mmc/host/omap_hsmmc.c
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@ -552,6 +552,15 @@ static void omap_hsmmc_gpio_free(struct omap_mmc_platform_data *pdata)
gpio_free(pdata->slots[0].switch_pin);
}
/*
* Start clock to the card
*/
static void omap_hsmmc_start_clock(struct omap_hsmmc_host *host)
{
OMAP_HSMMC_WRITE(host->base, SYSCTL,
OMAP_HSMMC_READ(host->base, SYSCTL) | CEN);
}
/*
* Stop clock to the card
*/
@ -693,8 +702,8 @@ static int omap_hsmmc_context_restore(struct omap_hsmmc_host *host)
break;
}
OMAP_HSMMC_WRITE(host->base, SYSCTL,
OMAP_HSMMC_READ(host->base, SYSCTL) & ~CEN);
omap_hsmmc_stop_clock(host);
OMAP_HSMMC_WRITE(host->base, SYSCTL,
(calc_divisor(ios) << 6) | (DTO << 16));
OMAP_HSMMC_WRITE(host->base, SYSCTL,
@ -705,8 +714,7 @@ static int omap_hsmmc_context_restore(struct omap_hsmmc_host *host)
&& time_before(jiffies, timeout))
;
OMAP_HSMMC_WRITE(host->base, SYSCTL,
OMAP_HSMMC_READ(host->base, SYSCTL) | CEN);
omap_hsmmc_start_clock(host);
con = OMAP_HSMMC_READ(host->base, CON);
if (ios->bus_mode == MMC_BUSMODE_OPENDRAIN)
@ -1684,8 +1692,7 @@ static void omap_hsmmc_set_ios(struct mmc_host *mmc, struct mmc_ios *ios)
&& time_before(jiffies, timeout))
msleep(1);
OMAP_HSMMC_WRITE(host->base, SYSCTL,
OMAP_HSMMC_READ(host->base, SYSCTL) | CEN);
omap_hsmmc_start_clock(host);
if (do_send_init_stream)
send_init_stream(host);