ENGR00175221-02 [MX6] MMCSD: clear EXE_TUNE bit after tuning finishes.

- add hook for post tuning in common code
- add hook for post tuning for platform code to deal with clean up stuff on
finishing tuning.

Signed-off-by: Ryan QIAN <b32804@freescale.com>

5 files changed, 16 insertions, 0 deletions

diff --git a/drivers/mmc/core/core.c b/drivers/mmc/core/core.c
index fb541cc8a92c..c3f7117ea266 100644
--- a/drivers/mmc/core/core.c
+++ b/drivers/mmc/core/core.c
@@ -662,6 +662,13 @@ void mmc_set_clock(struct mmc_host *host, unsigned int hz)
 	mmc_host_clk_release(host);
 }
 
+void mmc_finish_tuning(struct mmc_host *host)
+{
+	host->ios.finish_tuning_flag = 1;
+	mmc_set_ios(host);
+	host->ios.finish_tuning_flag = 0;
+}
+
 void mmc_set_tuning(struct mmc_host *host, unsigned int tuning)
 {
 	WARN_ON(tuning < host->tuning_min);
diff --git a/drivers/mmc/core/core.h b/drivers/mmc/core/core.h
index 84370cad499d..afed70f7d0cc 100644
--- a/drivers/mmc/core/core.h
+++ b/drivers/mmc/core/core.h
@@ -34,6 +34,7 @@ void mmc_init_erase(struct mmc_card *card);
 void mmc_set_chip_select(struct mmc_host *host, int mode);
 void mmc_set_clock(struct mmc_host *host, unsigned int hz);
 void mmc_set_tuning(struct mmc_host *host, unsigned int tuning);
+void mmc_finish_tuning(struct mmc_host *host);
 void mmc_gate_clock(struct mmc_host *host);
 void mmc_ungate_clock(struct mmc_host *host);
 void mmc_set_ungated(struct mmc_host *host);
diff --git a/drivers/mmc/core/sd.c b/drivers/mmc/core/sd.c
index 8fddc550a3c3..b7291e0444f6 100644
--- a/drivers/mmc/core/sd.c
+++ b/drivers/mmc/core/sd.c
@@ -648,6 +648,7 @@ static int mmc_sd_init_uhs_card(struct mmc_card *card)
 		avg = (min + max) / 2;
 		mmc_set_tuning(card->host, avg);
 		mmc_send_tuning_cmd(card);
+		mmc_finish_tuning(card->host);
 	}
 #else
 	if (!mmc_host_is_spi(card->host) && card->host->ops->execute_tuning)
diff --git a/drivers/mmc/host/sdhci.c b/drivers/mmc/host/sdhci.c
index 394ddcd0936c..6137f9de67c6 100755
--- a/drivers/mmc/host/sdhci.c
+++ b/drivers/mmc/host/sdhci.c
@@ -1328,6 +1328,12 @@ static void sdhci_set_ios(struct mmc_host *mmc, struct mmc_ios *ios)
 	if (host->flags & SDHCI_DEVICE_DEAD)
 		goto out;
 
+	if (ios->finish_tuning_flag) {
+		if (host->ops->post_tuning)
+			host->ops->post_tuning(host);
+		goto out;
+	}
+
 	if (ios->tuning_flag) {
 		/* means this request is for tuning only */
 		if (host->ops->pre_tuning)
diff --git a/drivers/mmc/host/sdhci.h b/drivers/mmc/host/sdhci.h
index e6af69ecc43f..27b12505c65c 100644
--- a/drivers/mmc/host/sdhci.h
+++ b/drivers/mmc/host/sdhci.h
@@ -275,6 +275,7 @@ struct sdhci_ops {
 	int	(*set_uhs_signaling)(struct sdhci_host *host, unsigned int uhs);
 
 	void		(*pre_tuning)(struct sdhci_host *host, u32 val);
+	void		(*post_tuning)(struct sdhci_host *host);
 	void		(*platform_clk_ctrl)(struct sdhci_host *host, bool enable);
 };