On 25/05/2017 14:37, Jaehoon Chung wrote:
On 05/13/2017 03:16 AM, Jean-Jacques Hiblot wrote:
Tuning is a mandatory step in the initialization of SDR104 and HS200 modes.
This callback execute the tuning process.

Signed-off-by: Jean-Jacques Hiblot <jjhib...@ti.com>
---
  drivers/mmc/mmc-uclass.c | 14 ++++++++++++++
  drivers/mmc/mmc.c        |  5 +++++
  include/mmc.h            | 12 ++++++++++++
  3 files changed, 31 insertions(+)

diff --git a/drivers/mmc/mmc-uclass.c b/drivers/mmc/mmc-uclass.c
index e1f7995..b7433cf 100644
--- a/drivers/mmc/mmc-uclass.c
+++ b/drivers/mmc/mmc-uclass.c
@@ -93,6 +93,20 @@ int mmc_getcd(struct mmc *mmc)
  {
        return dm_mmc_get_cd(mmc->dev);
  }
+
+int dm_mmc_execute_tuning(struct udevice *dev, uint opcode)
+{
+       struct dm_mmc_ops *ops = mmc_get_ops(dev);
+
+       if (!ops->execute_tuning)
+               return -ENOSYS;
+       return ops->execute_tuning(dev, opcode);
+}
+
+int mmc_execute_tuning(struct mmc *mmc, uint opcode)
+{
+       return dm_mmc_execute_tuning(mmc->dev, opcode);
+}
  #endif
struct mmc *mmc_get_mmc_dev(struct udevice *dev)
diff --git a/drivers/mmc/mmc.c b/drivers/mmc/mmc.c
index 415484e..d7d1c91 100644
--- a/drivers/mmc/mmc.c
+++ b/drivers/mmc/mmc.c
@@ -219,6 +219,11 @@ int mmc_send_cmd(struct mmc *mmc, struct mmc_cmd *cmd, 
struct mmc_data *data)
return ret;
  }
+
+int mmc_execute_tuning(struct mmc *mmc, uint opcode)
+{
+       return mmc->cfg->ops->execute_tuning(mmc, opcode);
Doesn't need to check about execute_tuing callback function?

Yes it should. However this has been removed for v2. Simon pointed out that new features should support only the driver model.
+}
  #endif
int mmc_send_status(struct mmc *mmc, int timeout)
diff --git a/include/mmc.h b/include/mmc.h
index 097a685..dab68c5 100644
--- a/include/mmc.h
+++ b/include/mmc.h
@@ -375,6 +375,15 @@ struct dm_mmc_ops {
         * @return 0 if write-enabled, 1 if write-protected, -ve on error
         */
        int (*get_wp)(struct udevice *dev);
+
+       /**
+        * execute_tuning() - Start the tuning process
+        *
+        * @dev:        Device to start the tuning
+        * @opcode:     Command opcode to send
+        * @return 0 if OK, -ve on error
+        */
+       int (*execute_tuning)(struct udevice *dev, uint opcode);
  };
#define mmc_get_ops(dev) ((struct dm_mmc_ops *)(dev)->driver->ops)
@@ -385,12 +394,14 @@ int dm_mmc_set_ios(struct udevice *dev);
  int dm_mmc_set_vdd(struct udevice *dev, bool enable);
  int dm_mmc_get_cd(struct udevice *dev);
  int dm_mmc_get_wp(struct udevice *dev);
+int dm_mmc_execute_tuning(struct udevice *dev, uint opcode);
/* Transition functions for compatibility */
  int mmc_set_ios(struct mmc *mmc);
  int mmc_set_vdd(struct mmc *mmc, bool enable);
  int mmc_getcd(struct mmc *mmc);
  int mmc_getwp(struct mmc *mmc);
+int mmc_execute_tuning(struct mmc *mmc, uint opcode);
#else
  struct mmc_ops {
@@ -401,6 +412,7 @@ struct mmc_ops {
        int (*set_vdd)(struct mmc *mmc, bool enable);
        int (*getcd)(struct mmc *mmc);
        int (*getwp)(struct mmc *mmc);
+       int (*execute_tuning)(struct mmc *mmc, uint opcode);
  };
  #endif


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