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authorBen Chuang <ben.chuang@genesyslogic.com.tw>2019-08-27 08:32:42 +0800
committerUlf Hansson <ulf.hansson@linaro.org>2019-09-11 15:58:39 +0200
commit4a9e0d1a6256024582c225ce0d86b51e109062c4 (patch)
tree723abfa77f772fe78a3cd50a93f1ed6e00a63d48 /drivers/mmc
parent5c1a4f4070a831e2959f9ea4b9514d357d001feb (diff)
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>
Diffstat (limited to 'drivers/mmc')
-rw-r--r--drivers/mmc/host/sdhci.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/mmc/host/sdhci.c b/drivers/mmc/host/sdhci.c
index a5dc5aae973e..40de56d6da0b 100644
--- 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);