generic-phy: add configure op

Add the PHY configure op callback to the generic PHY uclass to permit
configuring the PHY.

It's useful for MIPI DSI PHYs to setup the link timings.

Signed-off-by:Neil Armstrong <narmstrong@baylibre.com>
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>

diff --git a/drivers/phy/phy-uclass.c b/drivers/phy/phy-uclass.c
index ef03e3a5025f351cad6a199b65c9728b084f53eb..43ffbcee0f01af6adfba9276f4e0ab5a847100ad 100644 (file)
--- a/drivers/phy/phy-uclass.c
+++ b/drivers/phy/phy-uclass.c
@@ -204,6 +204,17 @@ int generic_phy_power_off(struct phy *phy)
        return ret;
 }
 
+int generic_phy_configure(struct phy *phy, void *params)
+{
+       struct phy_ops const *ops;
+
+       if (!generic_phy_valid(phy))
+               return 0;
+       ops = phy_dev_ops(phy->dev);
+
+       return ops->configure ? ops->configure(phy, params) : 0;
+}
+
 int generic_phy_get_bulk(struct udevice *dev, struct phy_bulk *bulk)
 {
        int i, ret, count;

diff --git a/include/generic-phy.h b/include/generic-phy.h
index 5ab34cda03d859f6254ca44029009ee8d4dc431e..a17d900e4bd21f81401149ea9f4bb8110c7c62a0 100644 (file)
--- a/include/generic-phy.h
+++ b/include/generic-phy.h
@@ -122,6 +122,20 @@ struct phy_ops {
        * @return 0 if OK, or a negative error code
        */
        int     (*power_off)(struct phy *phy);
+
+       /**
+       * configure - configure a PHY device
+       *
+       * @phy: PHY port to be configured
+       * @params: PHY Parameters, underlying data is specific to the PHY function
+       *
+       * During runtime, the PHY may need to be configured for it's main function.
+       * This function configures the PHY for it's main function following
+       * power_on/off() after beeing initialized.
+       *
+       * @return 0 if OK, or a negative error code
+       */
+       int     (*configure)(struct phy *phy, void *params);
 };
 
 /**
@@ -183,6 +197,15 @@ int generic_phy_power_on(struct phy *phy);
  */
 int generic_phy_power_off(struct phy *phy);
 
+/**
+ * generic_phy_configure() - configure a PHY device
+ *
+ * @phy:       PHY port to be configured
+ * @params:    PHY Parameters, underlying data is specific to the PHY function
+ * @return 0 if OK, or a negative error code
+ */
+int generic_phy_configure(struct phy *phy, void *params);
+
 
 /**
  * generic_phy_get_by_index() - Get a PHY device by integer index.