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authorAndy Shevchenko <ext-andriy.shevchenko@nokia.com>2011-05-06 12:14:05 +0300
committerChris Ball <cjb@laptop.org>2011-07-21 10:35:02 -0400
commite0c7f99b863b485ad0cde371ea1f62ec8ff70c5d (patch)
tree66b39be4541469ffab16d44debc63e1a4368f3f9 /drivers/mmc
parentac330f44c6bcc5f8ef7eb6ea7fd00575a1d5ef1a (diff)
downloadlinux-e0c7f99b863b485ad0cde371ea1f62ec8ff70c5d.tar.bz2
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>
Diffstat (limited to 'drivers/mmc')
-rw-r--r--drivers/mmc/host/omap_hsmmc.c19
1 files changed, 13 insertions, 6 deletions
diff --git a/drivers/mmc/host/omap_hsmmc.c b/drivers/mmc/host/omap_hsmmc.c
index 2840c7af02c2..2645bdc94dae 100644
--- a/drivers/mmc/host/omap_hsmmc.c
+++ b/drivers/mmc/host/omap_hsmmc.c
@@ -553,6 +553,15 @@ static void omap_hsmmc_gpio_free(struct omap_mmc_platform_data *pdata)
}
/*
+ * 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
*/
static void omap_hsmmc_stop_clock(struct omap_hsmmc_host *host)
@@ -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);