[PATCH v14 30/38] usb: dwc3: core: add post PHY registration hook for platform glue

[Sebastian Reichel]

Add support for custom PHY handling steps in platform glue code
by adding a post registration hook. This will be used for handling
PHY reset notifications on the Rockchip platform.

Signed-off-by: Sebastian Reichel <sebastian.reichel at collabora.com>
---
 drivers/usb/dwc3/core.c | 2 +-
 drivers/usb/dwc3/core.h | 9 +++++++++
 2 files changed, 10 insertions(+), 1 deletion(-)

diff --git a/drivers/usb/dwc3/core.c b/drivers/usb/dwc3/core.c
index 6e796489a04d..d0d766e1d20c 100644
--- a/drivers/usb/dwc3/core.c
+++ b/drivers/usb/dwc3/core.c
@@ -1613,7 +1613,7 @@ static int dwc3_core_get_phy(struct dwc3 *dwc)
 		}
 	}
 
-	return 0;
+	return dwc3_post_phy_registration(dwc);
 }
 
 static int dwc3_core_init_mode(struct dwc3 *dwc)
diff --git a/drivers/usb/dwc3/core.h b/drivers/usb/dwc3/core.h
index e0dee9d28740..8572d23a80a9 100644
--- a/drivers/usb/dwc3/core.h
+++ b/drivers/usb/dwc3/core.h
@@ -996,10 +996,12 @@ struct dwc3_scratchpad_array {
  *				need to be passed on to glue layer
  * @pre_set_role: Notify glue of role switch notifications
  * @pre_run_stop: Notify run stop enable/disable information to glue
+ * @post_phy_registration: Called directly after PHY got registered
  */
 struct dwc3_glue_ops {
 	void	(*pre_set_role)(struct dwc3 *dwc, enum usb_role role);
 	void	(*pre_run_stop)(struct dwc3 *dwc, bool is_on);
+	int	(*post_phy_registration)(struct dwc3 *dwc);
 };
 
 /**
@@ -1650,6 +1652,13 @@ static inline void dwc3_pre_run_stop(struct dwc3 *dwc, bool is_on)
 		dwc->glue_ops->pre_run_stop(dwc, is_on);
 }
 
+static inline int dwc3_post_phy_registration(struct dwc3 *dwc)
+{
+	if (dwc->glue_ops && dwc->glue_ops->post_phy_registration)
+		return dwc->glue_ops->post_phy_registration(dwc);
+	return 0;
+}
+
 #if IS_ENABLED(CONFIG_USB_DWC3_HOST) || IS_ENABLED(CONFIG_USB_DWC3_DUAL_ROLE)
 int dwc3_host_init(struct dwc3 *dwc);
 void dwc3_host_exit(struct dwc3 *dwc);

-- 
2.53.0