mmc: sdhci: Change timeout of loop for checking internal clock stable

According to section 3.2.1 internal clock setup in SD Host Controller
Simplified Specifications 4.20, the timeout of loop for checking
internal clock stable is defined as 150ms.

Signed-off-by: Ben Chuang <ben.chuang@genesyslogic.com.tw>
Co-developed-by: Michael K Johnson <johnsonm@danlj.org>
Signed-off-by: Michael K Johnson <johnsonm@danlj.org>
Acked-by: Adrian Hunter <adrian.hunter@intel.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 a5dc5aae973e6e14f3915dae1c44d247a7ac7bfb..40de56d6da0bf9ba20f5da274bd8e639a43de632 100644 (file)
--- a/drivers/mmc/host/sdhci.c
+++ b/drivers/mmc/host/sdhci.c
@@ -1636,8 +1636,8 @@ void sdhci_enable_clk(struct sdhci_host *host, u16 clk)
        clk |= SDHCI_CLOCK_INT_EN;
        sdhci_writew(host, clk, SDHCI_CLOCK_CONTROL);
 
-       /* Wait max 20 ms */
-       timeout = ktime_add_ms(ktime_get(), 20);
+       /* Wait max 150 ms */
+       timeout = ktime_add_ms(ktime_get(), 150);
        while (1) {
                bool timedout = ktime_after(ktime_get(), timeout);