phy: Add USB speed related PHY modes

Add following USB speed related PHY modes:
LS (Low Speed), FS (Full Speed), HS (High Speed), SS (Super Speed)

Speed related information is required by some QCOM PHY drivers
to program PHY monitor resume/remote-wakeup events in suspended
state. Speed is needed in order to set correct polarity of wakeup
events for detection. E.g. QUSB2 PHY monitors DP/DM line state
depending on whether speed is LS or FS/HS to detect resume.
Similarly QMP USB3 PHY in SS mode should monitor RX terminations
attach/detach and LFPS events depending on SSPHY is active or not.

Signed-off-by: Manu Gautam <mgautam@codeaurora.org>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>

1 files changed, 18 insertions, 0 deletions

diff --git a/include/linux/phy/phy.h b/include/linux/phy/phy.h
index 4f8423a948d5..485469e6fa7f 100644
--- a/include/linux/phy/phy.h
+++ b/include/linux/phy/phy.h
@@ -25,7 +25,15 @@ struct phy;
 enum phy_mode {
         PHY_MODE_INVALID,
         PHY_MODE_USB_HOST,
+        PHY_MODE_USB_HOST_LS,
+        PHY_MODE_USB_HOST_FS,
+        PHY_MODE_USB_HOST_HS,
+        PHY_MODE_USB_HOST_SS,
         PHY_MODE_USB_DEVICE,
+        PHY_MODE_USB_DEVICE_LS,
+        PHY_MODE_USB_DEVICE_FS,
+        PHY_MODE_USB_DEVICE_HS,
+        PHY_MODE_USB_DEVICE_SS,
         PHY_MODE_USB_OTG,
         PHY_MODE_SGMII,
         PHY_MODE_10GKR,
@@ -61,6 +69,7 @@ struct phy_ops {
  */
 struct phy_attrs {
         u32                     bus_width;
+        enum phy_mode           mode;
 };
 
 /**
@@ -144,6 +153,10 @@ int phy_exit(struct phy *phy);
 int phy_power_on(struct phy *phy);
 int phy_power_off(struct phy *phy);
 int phy_set_mode(struct phy *phy, enum phy_mode mode);
+static inline enum phy_mode phy_get_mode(struct phy *phy)
+{
+        return phy->attrs.mode;
+}
 int phy_reset(struct phy *phy);
 int phy_calibrate(struct phy *phy);
 static inline int phy_get_bus_width(struct phy *phy)
@@ -260,6 +273,11 @@ static inline int phy_set_mode(struct phy *phy, enum phy_mode mode)
         return -ENOSYS;
 }
 
+static inline enum phy_mode phy_get_mode(struct phy *phy)
+{
+        return PHY_MODE_INVALID;
+}
+
 static inline int phy_reset(struct phy *phy)
 {
         if (!phy)