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mmc: sdhci: introduce sdhci_update_clock helper to re-enable clock

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There are three places where same piece of code is used. Let's split it
to a separate function.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Chris Ball <cjb@laptop.org>
This commit is contained in:
Andy Shevchenko 2013-01-07 16:31:08 +02:00 committed by Chris Ball
parent 740b7a44ae
commit 8213af3b7a
1 changed files with 13 additions and 14 deletions
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27
drivers/mmc/host/sdhci.c
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@ -1189,6 +1189,15 @@ out:
host->clock = clock;
}
static inline void sdhci_update_clock(struct sdhci_host *host)
{
unsigned int clock;
clock = host->clock;
host->clock = 0;
sdhci_set_clock(host, clock);
}
static int sdhci_set_power(struct sdhci_host *host, unsigned short power)
{
u8 pwr = 0;
@ -1418,7 +1427,6 @@ static void sdhci_do_set_ios(struct sdhci_host *host, struct mmc_ios *ios)
if (host->version >= SDHCI_SPEC_300) {
u16 clk, ctrl_2;
unsigned int clock;
/* In case of UHS-I modes, set High Speed Enable */
if ((ios->timing == MMC_TIMING_MMC_HS200) ||
@ -1458,9 +1466,7 @@ static void sdhci_do_set_ios(struct sdhci_host *host, struct mmc_ios *ios)
sdhci_writeb(host, ctrl, SDHCI_HOST_CONTROL);
/* Re-enable SD Clock */
clock = host->clock;
host->clock = 0;
sdhci_set_clock(host, clock);
sdhci_update_clock(host);
}
@ -1491,9 +1497,7 @@ static void sdhci_do_set_ios(struct sdhci_host *host, struct mmc_ios *ios)
}
/* Re-enable SD Clock */
clock = host->clock;
host->clock = 0;
sdhci_set_clock(host, clock);
sdhci_update_clock(host);
} else
sdhci_writeb(host, ctrl, SDHCI_HOST_CONTROL);
@ -2083,14 +2087,9 @@ static void sdhci_tasklet_finish(unsigned long param)
(host->quirks & SDHCI_QUIRK_RESET_AFTER_REQUEST))) {
/* Some controllers need this kick or reset won't work here */
if (host->quirks & SDHCI_QUIRK_CLOCK_BEFORE_RESET) {
unsigned int clock;
if (host->quirks & SDHCI_QUIRK_CLOCK_BEFORE_RESET)
/* This is to force an update */
clock = host->clock;
host->clock = 0;
sdhci_set_clock(host, clock);
}
sdhci_update_clock(host);
/* Spec says we should do both at the same time, but Ricoh
controllers do not like that. */