mmc: core: Simplify by adding mmc_execute_tuning()

For each MMC, SD and SDIO there is code that
holds the clock, calls ops->execute_tuning, and
releases the clock. Simplify the code a bit by
providing a separate function to do that.

Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>

1 files changed, 24 insertions, 0 deletions

diff --git a/drivers/mmc/core/core.c b/drivers/mmc/core/core.c
index 2cdb06e0643e..dc9eb013db5f 100644
--- a/drivers/mmc/core/core.c
+++ b/drivers/mmc/core/core.c
@@ -1077,6 +1077,30 @@ void mmc_set_ungated(struct mmc_host *host)
 }
 #endif
 
+int mmc_execute_tuning(struct mmc_card *card)
+{
+        struct mmc_host *host = card->host;
+        u32 opcode;
+        int err;
+
+        if (!host->ops->execute_tuning)
+                return 0;
+
+        if (mmc_card_mmc(card))
+                opcode = MMC_SEND_TUNING_BLOCK_HS200;
+        else
+                opcode = MMC_SEND_TUNING_BLOCK;
+
+        mmc_host_clk_hold(host);
+        err = host->ops->execute_tuning(host, opcode);
+        mmc_host_clk_release(host);
+
+        if (err)
+                pr_err("%s: tuning execution failed\n", mmc_hostname(host));
+
+        return err;
+}
+
 /*
  * Change the bus mode (open drain/push-pull) of a host.
  */