[PATCH 2/4] generic-phy: add configure op

[Neil Armstrong <narmstrong@baylibre.com>]

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>
---
 drivers/phy/phy-uclass.c | 11 +++++++++++
 include/generic-phy.h    | 23 +++++++++++++++++++++++
 2 files changed, 34 insertions(+)

diff --git a/drivers/phy/phy-uclass.c b/drivers/phy/phy-uclass.c
index ef03e3a502..43ffbcee0f 100644
--- 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 5ab34cda03..a17d900e4b 100644
--- 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.
-- 
2.25.1