netdev - [PATCH net-next RFC 1/2] net: phy: at803x: Export at803x_debug_reg

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Date:   Tue, 20 Feb 2018 03:28:18 +0100
From:   Andrew Lunn <andrew@...n.ch>
To:     paul.burton@...s.com
Cc:     netdev <netdev@...r.kernel.org>, Andrew Lunn <andrew@...n.ch>
Subject: [PATCH net-next RFC 1/2] net: phy: at803x: Export at803x_debug_reg_mask()

On some boards, this PHY has a problem when it hibernates. Export this
function to a board can register a PHY fixup to disable hibernation.

Signed-off-by: Andrew Lunn <andrew@...n.ch>
---
 drivers/net/phy/at803x.c   |  5 +++--
 include/linux/at803x_phy.h | 16 ++++++++++++++++
 2 files changed, 19 insertions(+), 2 deletions(-)
 create mode 100644 include/linux/at803x_phy.h

diff --git a/drivers/net/phy/at803x.c b/drivers/net/phy/at803x.c
index 411cf1072bae..5aede5708abf 100644
--- a/drivers/net/phy/at803x.c
+++ b/drivers/net/phy/at803x.c
@@ -18,6 +18,7 @@
 #include <linux/etherdevice.h>
 #include <linux/of_gpio.h>
 #include <linux/gpio/consumer.h>
+#include <linux/at803x_phy.h>
 
 #define AT803X_INTR_ENABLE			0x12
 #define AT803X_INTR_ENABLE_AUTONEG_ERR		BIT(15)
@@ -93,8 +94,8 @@ static int at803x_debug_reg_read(struct phy_device *phydev, u16 reg)
 	return phy_read(phydev, AT803X_DEBUG_DATA);
 }
 
-static int at803x_debug_reg_mask(struct phy_device *phydev, u16 reg,
-				 u16 clear, u16 set)
+int at803x_debug_reg_mask(struct phy_device *phydev, u16 reg,
+			  u16 clear, u16 set)
 {
 	u16 val;
 	int ret;
diff --git a/include/linux/at803x_phy.h b/include/linux/at803x_phy.h
new file mode 100644
index 000000000000..2460c17d56ec
--- /dev/null
+++ b/include/linux/at803x_phy.h
@@ -0,0 +1,16 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _AT803X_PHY_H
+#define _PHY_AT803X_PHY
+
+#define ATH8030_PHY_ID		0x004dd076
+#define ATH8031_PHY_ID		0x004dd074
+#define ATH8035_PHY_ID		0x004dd072
+#define AT803X_PHY_ID_MASK	0xffffffef
+
+#define AT8031_HIBERNATE	0x0B
+#define AT8031_PS_HIB_EN	0x8000 /* Hibernate enable */
+
+int at803x_debug_reg_mask(struct phy_device *phydev, u16 reg,
+			  u16 clear, u16 set);
+
+#endif /* _AT803X_PHY_H */
-- 
2.16.1