recipes-kernel/linux/linux-mediatek-5.4/mediatek/patches-5.4/999-1701-v5.8-net-phy-add-concept-of-shared-storage-for-PHYs.patch

From 3fc10755d5f6a5618519f2b5b3a68febfc5984b0 Mon Sep 17 00:00:00 2001
From: Sam Shih <sam.shih@mediatek.com>
Date: Fri, 2 Jun 2023 13:06:27 +0800
Subject: [PATCH] 
 [networking][999-2702-v5.9-net-phy-add-support-for-a-common-probe-between-shared-PHYs.patch]

---
 include/linux/phy.h | 18 +++++++++++++++---
 1 file changed, 15 insertions(+), 3 deletions(-)

diff --git a/include/linux/phy.h b/include/linux/phy.h
index d26dba255..4f2c105f5 100644
--- a/include/linux/phy.h
+++ b/include/linux/phy.h
@@ -232,7 +232,8 @@ struct phy_package_shared {
 };
 
 /* used as bit number in atomic bitops */
-#define PHY_SHARED_F_INIT_DONE 0
+#define PHY_SHARED_F_INIT_DONE  0
+#define PHY_SHARED_F_PROBE_DONE 1
 
 /*
  * The Bus class for PHYs.  Devices which provide access to
@@ -1373,14 +1374,25 @@ static inline int __phy_package_write(struct phy_device *phydev,
 	return __mdiobus_write(phydev->mdio.bus, shared->addr, regnum, val);
 }
 
-static inline bool phy_package_init_once(struct phy_device *phydev)
+static inline bool __phy_package_set_once(struct phy_device *phydev,
+					  unsigned int b)
 {
 	struct phy_package_shared *shared = phydev->shared;
 
 	if (!shared)
 		return false;
 
-	return !test_and_set_bit(PHY_SHARED_F_INIT_DONE, &shared->flags);
+	return !test_and_set_bit(b, &shared->flags);
+}
+
+static inline bool phy_package_init_once(struct phy_device *phydev)
+{
+	return __phy_package_set_once(phydev, PHY_SHARED_F_INIT_DONE);
+}
+
+static inline bool phy_package_probe_once(struct phy_device *phydev)
+{
+	return __phy_package_set_once(phydev, PHY_SHARED_F_PROBE_DONE);
 }
 
 extern struct bus_type mdio_bus_type;
-- 
2.34.1