mmc: sdhci: move timeout_clk dynamically calculation code into common code

The timeout_clk calculation code for SDHCI_QUIRK_DATA_TIMEOUT_USES_SDCLK case
is common and could be moved into common sdhci_do_set_ios, then platform code
which is not using sdhci_set_clock does not need to write the same code again.

Signed-off-by: Dong Aisheng <b29396@freescale.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>

diff --git a/drivers/mmc/host/sdhci.c b/drivers/mmc/host/sdhci.c
index 1e50880..f6a683b 100644 (file)
--- a/drivers/mmc/host/sdhci.c
+++ b/drivers/mmc/host/sdhci.c
@@ -1201,18 +1201,8 @@ void sdhci_set_clock(struct sdhci_host *host, unsigned int clock)
        }
 
 clock_set:
-       if (real_div) {
+       if (real_div)
                host->mmc->actual_clock = (host->max_clk * clk_mul) / real_div;
-               if (host->quirks & SDHCI_QUIRK_DATA_TIMEOUT_USES_SDCLK) {
-                       host->timeout_clk = host->mmc->actual_clock / 1000;
-                       host->mmc->max_busy_timeout =
-                                       host->ops->get_max_timeout_count ?
-                                       host->ops->get_max_timeout_count(host) :
-                                       1 << 27;
-                       host->mmc->max_busy_timeout /= host->timeout_clk;
-               }
-       }
-
        clk |= (div & SDHCI_DIV_MASK) << SDHCI_DIVIDER_SHIFT;
        clk |= ((div & SDHCI_DIV_HI_MASK) >> SDHCI_DIV_MASK_LEN)
                << SDHCI_DIVIDER_HI_SHIFT;
@@ -1489,6 +1479,18 @@ static void sdhci_do_set_ios(struct sdhci_host *host, struct mmc_ios *ios)
        if (!ios->clock || ios->clock != host->clock) {
                host->ops->set_clock(host, ios->clock);
                host->clock = ios->clock;
+
+               if (host->quirks & SDHCI_QUIRK_DATA_TIMEOUT_USES_SDCLK &&
+                   host->clock) {
+                       host->timeout_clk = host->mmc->actual_clock ?
+                                               host->mmc->actual_clock / 1000 :
+                                               host->clock / 1000;
+                       host->mmc->max_busy_timeout =
+                               host->ops->get_max_timeout_count ?
+                               host->ops->get_max_timeout_count(host) :
+                               1 << 27;
+                       host->mmc->max_busy_timeout /= host->timeout_clk;
+               }
        }
 
        sdhci_set_power(host, ios->power_mode, ios->vdd);