This change removes delay during tuning command for mmc.
Because mmc does not need delay between tuning commands,
and it could cause performance degradation.

---
 drivers/mmc/host/sdhci.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/mmc/host/sdhci.c b/drivers/mmc/host/sdhci.c
index 9a79fc4..bd266fa 100644
--- a/drivers/mmc/host/sdhci.c
+++ b/drivers/mmc/host/sdhci.c
@@ -1992,7 +1992,8 @@ static int sdhci_execute_tuning(struct mmc_host *mmc,
u32 opcode)
                ctrl = sdhci_readw(host, SDHCI_HOST_CONTROL2);
                tuning_loop_counter--;
                timeout--;
-               mdelay(1);
+               if (mmc->card->type != MMC_TYPE_MMC)
+                       mdelay(1);
        } while (ctrl & SDHCI_CTRL_EXEC_TUNING);

        /*
--
1.8.3.2


--
To unsubscribe from this list: send the line "unsubscribe linux-mmc" in
the body of a message to [email protected]
More majordomo info at  http://vger.kernel.org/majordomo-info.html

Reply via email to