提交 e0c7f99b 编写于 作者: A Andy Shevchenko 提交者: Chris Ball

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: NAndy Shevchenko <ext-andriy.shevchenko@nokia.com>
Signed-off-by: NAdrian Hunter <adrian.hunter@nokia.com>
Signed-off-by: NChris Ball <cjb@laptop.org>
上级 ac330f44
......@@ -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);
......
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