From: "SkyLake.Huang" <skylake.huang@mediatek.com>

This patch creates mtk-phy-lib.c & mtk-phy.h and integrates mtk-ge-soc.c's
LED helper functions so that we can use those helper functions in other
MTK's ethernet phy driver.

Signed-off-by: SkyLake.Huang <skylake.huang@mediatek.com>
---
 MAINTAINERS                            |   2 +
 drivers/net/phy/mediatek/Kconfig       |   5 +
 drivers/net/phy/mediatek/Makefile      |   1 +
 drivers/net/phy/mediatek/mtk-ge-soc.c  | 262 +++----------------------
 drivers/net/phy/mediatek/mtk-phy-lib.c | 251 +++++++++++++++++++++++
 drivers/net/phy/mediatek/mtk.h         |  82 ++++++++
 6 files changed, 368 insertions(+), 235 deletions(-)
 create mode 100644 drivers/net/phy/mediatek/mtk-phy-lib.c
 create mode 100644 drivers/net/phy/mediatek/mtk.h

diff --git a/MAINTAINERS b/MAINTAINERS
index 6deaf94..e58e05c 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -13794,7 +13794,9 @@ M:	SkyLake Huang <SkyLake.Huang@mediatek.com>
 L:	netdev@vger.kernel.org
 S:	Maintained
 F:	drivers/net/phy/mediatek/mtk-ge-soc.c
+F:	drivers/net/phy/mediatek/mtk-phy-lib.c
 F:	drivers/net/phy/mediatek/mtk-ge.c
+F:	drivers/net/phy/mediatek/mtk.h
 F:	drivers/phy/mediatek/phy-mtk-xfi-tphy.c
 
 MEDIATEK I2C CONTROLLER DRIVER
diff --git a/drivers/net/phy/mediatek/Kconfig b/drivers/net/phy/mediatek/Kconfig
index 6839ea6..448bc20 100644
--- a/drivers/net/phy/mediatek/Kconfig
+++ b/drivers/net/phy/mediatek/Kconfig
@@ -1,6 +1,10 @@
 # SPDX-License-Identifier: GPL-2.0-only
+config MTK_NET_PHYLIB
+	tristate
+
 config MEDIATEK_GE_PHY
 	tristate "MediaTek Gigabit Ethernet PHYs"
+	select MTK_NET_PHYLIB
 	help
 	  Supports the MediaTek non-built-in Gigabit Ethernet PHYs.
 
@@ -13,6 +17,7 @@ config MEDIATEK_GE_SOC_PHY
 	tristate "MediaTek SoC Ethernet PHYs"
 	depends on (ARM64 && ARCH_MEDIATEK) || COMPILE_TEST
 	select NVMEM_MTK_EFUSE
+	select MTK_NET_PHYLIB
 	help
 	  Supports MediaTek SoC built-in Gigabit Ethernet PHYs.
 
diff --git a/drivers/net/phy/mediatek/Makefile b/drivers/net/phy/mediatek/Makefile
index 005bde2..814879d 100644
--- a/drivers/net/phy/mediatek/Makefile
+++ b/drivers/net/phy/mediatek/Makefile
@@ -1,3 +1,4 @@
 # SPDX-License-Identifier: GPL-2.0
+obj-$(CONFIG_MTK_NET_PHYLIB)		+= mtk-phy-lib.o
 obj-$(CONFIG_MEDIATEK_GE_PHY)		+= mtk-ge.o
 obj-$(CONFIG_MEDIATEK_GE_SOC_PHY)	+= mtk-ge-soc.o
diff --git a/drivers/net/phy/mediatek/mtk-ge-soc.c b/drivers/net/phy/mediatek/mtk-ge-soc.c
index 0eb5395..970bf35 100644
--- a/drivers/net/phy/mediatek/mtk-ge-soc.c
+++ b/drivers/net/phy/mediatek/mtk-ge-soc.c
@@ -8,6 +8,8 @@
 #include <linux/phy.h>
 #include <linux/regmap.h>
 
+#include "mtk.h"
+
 #define MTK_GPHY_ID_MT7981			0x03a29461
 #define MTK_GPHY_ID_MT7988			0x03a29481
 
@@ -210,41 +212,6 @@
 #define MTK_PHY_DA_TX_R50_PAIR_D		0x540
 
 /* Registers on MDIO_MMD_VEND2 */
-#define MTK_PHY_LED0_ON_CTRL			0x24
-#define MTK_PHY_LED1_ON_CTRL			0x26
-#define   MTK_PHY_LED_ON_MASK			GENMASK(6, 0)
-#define   MTK_PHY_LED_ON_LINK1000		BIT(0)
-#define   MTK_PHY_LED_ON_LINK100		BIT(1)
-#define   MTK_PHY_LED_ON_LINK10			BIT(2)
-#define   MTK_PHY_LED_ON_LINK			(MTK_PHY_LED_ON_LINK10 |\
-						 MTK_PHY_LED_ON_LINK100 |\
-						 MTK_PHY_LED_ON_LINK1000)
-#define   MTK_PHY_LED_ON_LINKDOWN		BIT(3)
-#define   MTK_PHY_LED_ON_FDX			BIT(4) /* Full duplex */
-#define   MTK_PHY_LED_ON_HDX			BIT(5) /* Half duplex */
-#define   MTK_PHY_LED_ON_FORCE_ON		BIT(6)
-#define   MTK_PHY_LED_ON_POLARITY		BIT(14)
-#define   MTK_PHY_LED_ON_ENABLE			BIT(15)
-
-#define MTK_PHY_LED0_BLINK_CTRL			0x25
-#define MTK_PHY_LED1_BLINK_CTRL			0x27
-#define   MTK_PHY_LED_BLINK_1000TX		BIT(0)
-#define   MTK_PHY_LED_BLINK_1000RX		BIT(1)
-#define   MTK_PHY_LED_BLINK_100TX		BIT(2)
-#define   MTK_PHY_LED_BLINK_100RX		BIT(3)
-#define   MTK_PHY_LED_BLINK_10TX		BIT(4)
-#define   MTK_PHY_LED_BLINK_10RX		BIT(5)
-#define   MTK_PHY_LED_BLINK_RX			(MTK_PHY_LED_BLINK_10RX |\
-						 MTK_PHY_LED_BLINK_100RX |\
-						 MTK_PHY_LED_BLINK_1000RX)
-#define   MTK_PHY_LED_BLINK_TX			(MTK_PHY_LED_BLINK_10TX |\
-						 MTK_PHY_LED_BLINK_100TX |\
-						 MTK_PHY_LED_BLINK_1000TX)
-#define   MTK_PHY_LED_BLINK_COLLISION		BIT(6)
-#define   MTK_PHY_LED_BLINK_RX_CRC_ERR		BIT(7)
-#define   MTK_PHY_LED_BLINK_RX_IDLE_ERR		BIT(8)
-#define   MTK_PHY_LED_BLINK_FORCE_BLINK		BIT(9)
-
 #define MTK_PHY_LED1_DEFAULT_POLARITIES		BIT(1)
 
 #define MTK_PHY_RG_BG_RASEL			0x115
@@ -299,10 +266,6 @@ enum CAL_MODE {
 	SW_M
 };
 
-#define MTK_PHY_LED_STATE_FORCE_ON	0
-#define MTK_PHY_LED_STATE_FORCE_BLINK	1
-#define MTK_PHY_LED_STATE_NETDEV	2
-
 struct mtk_socphy_priv {
 	unsigned long		led_state;
 };
@@ -1131,84 +1094,39 @@ static int mt798x_phy_config_init(struct phy_device *phydev)
 	return mt798x_phy_calibration(phydev);
 }
 
-static int mt798x_phy_hw_led_on_set(struct phy_device *phydev, u8 index,
-				    bool on)
-{
-	unsigned int bit_on = MTK_PHY_LED_STATE_FORCE_ON + (index ? 16 : 0);
-	struct mtk_socphy_priv *priv = phydev->priv;
-	bool changed;
-
-	if (on)
-		changed = !test_and_set_bit(bit_on, &priv->led_state);
-	else
-		changed = !!test_and_clear_bit(bit_on, &priv->led_state);
-
-	changed |= !!test_and_clear_bit(MTK_PHY_LED_STATE_NETDEV +
-					(index ? 16 : 0), &priv->led_state);
-	if (changed)
-		return phy_modify_mmd(phydev, MDIO_MMD_VEND2, index ?
-				      MTK_PHY_LED1_ON_CTRL : MTK_PHY_LED0_ON_CTRL,
-				      MTK_PHY_LED_ON_MASK,
-				      on ? MTK_PHY_LED_ON_FORCE_ON : 0);
-	else
-		return 0;
-}
-
-static int mt798x_phy_hw_led_blink_set(struct phy_device *phydev, u8 index,
-				       bool blinking)
-{
-	unsigned int bit_blink = MTK_PHY_LED_STATE_FORCE_BLINK + (index ? 16 : 0);
-	struct mtk_socphy_priv *priv = phydev->priv;
-	bool changed;
-
-	if (blinking)
-		changed = !test_and_set_bit(bit_blink, &priv->led_state);
-	else
-		changed = !!test_and_clear_bit(bit_blink, &priv->led_state);
-
-	changed |= !!test_bit(MTK_PHY_LED_STATE_NETDEV +
-			      (index ? 16 : 0), &priv->led_state);
-	if (changed)
-		return phy_write_mmd(phydev, MDIO_MMD_VEND2, index ?
-				     MTK_PHY_LED1_BLINK_CTRL : MTK_PHY_LED0_BLINK_CTRL,
-				     blinking ? MTK_PHY_LED_BLINK_FORCE_BLINK : 0);
-	else
-		return 0;
-}
-
 static int mt798x_phy_led_blink_set(struct phy_device *phydev, u8 index,
 				    unsigned long *delay_on,
 				    unsigned long *delay_off)
 {
+	struct mtk_socphy_priv *priv = phydev->priv;
 	bool blinking = false;
 	int err = 0;
 
-	if (index > 1)
-		return -EINVAL;
-
-	if (delay_on && delay_off && (*delay_on > 0) && (*delay_off > 0)) {
-		blinking = true;
-		*delay_on = 50;
-		*delay_off = 50;
-	}
+	err = mtk_phy_led_num_dly_cfg(index, delay_on, delay_off, &blinking);
+	if (err < 0)
+		return err;
 
-	err = mt798x_phy_hw_led_blink_set(phydev, index, blinking);
+	err = mtk_phy_hw_led_blink_set(phydev, index, &priv->led_state,
+				       blinking);
 	if (err)
 		return err;
 
-	return mt798x_phy_hw_led_on_set(phydev, index, false);
+	return mtk_phy_hw_led_on_set(phydev, index, &priv->led_state,
+				     MTK_GPHY_LED_ON_MASK, false);
 }
 
 static int mt798x_phy_led_brightness_set(struct phy_device *phydev,
 					 u8 index, enum led_brightness value)
 {
+	struct mtk_socphy_priv *priv = phydev->priv;
 	int err;
 
-	err = mt798x_phy_hw_led_blink_set(phydev, index, false);
+	err = mtk_phy_hw_led_blink_set(phydev, index, &priv->led_state, false);
 	if (err)
 		return err;
 
-	return mt798x_phy_hw_led_on_set(phydev, index, (value != LED_OFF));
+	return mtk_phy_hw_led_on_set(phydev, index, &priv->led_state,
+				     MTK_GPHY_LED_ON_MASK, (value != LED_OFF));
 }
 
 static const unsigned long supported_triggers = (BIT(TRIGGER_NETDEV_FULL_DUPLEX) |
@@ -1223,148 +1141,30 @@ static const unsigned long supported_triggers = (BIT(TRIGGER_NETDEV_FULL_DUPLEX)
 static int mt798x_phy_led_hw_is_supported(struct phy_device *phydev, u8 index,
 					  unsigned long rules)
 {
-	if (index > 1)
-		return -EINVAL;
-
-	/* All combinations of the supported triggers are allowed */
-	if (rules & ~supported_triggers)
-		return -EOPNOTSUPP;
-
-	return 0;
-};
+	return mtk_phy_led_hw_is_supported(phydev, index, rules,
+					   supported_triggers);
+}
 
 static int mt798x_phy_led_hw_control_get(struct phy_device *phydev, u8 index,
 					 unsigned long *rules)
 {
-	unsigned int bit_blink = MTK_PHY_LED_STATE_FORCE_BLINK + (index ? 16 : 0);
-	unsigned int bit_netdev = MTK_PHY_LED_STATE_NETDEV + (index ? 16 : 0);
-	unsigned int bit_on = MTK_PHY_LED_STATE_FORCE_ON + (index ? 16 : 0);
 	struct mtk_socphy_priv *priv = phydev->priv;
-	int on, blink;
-
-	if (index > 1)
-		return -EINVAL;
-
-	on = phy_read_mmd(phydev, MDIO_MMD_VEND2,
-			  index ? MTK_PHY_LED1_ON_CTRL : MTK_PHY_LED0_ON_CTRL);
-
-	if (on < 0)
-		return -EIO;
-
-	blink = phy_read_mmd(phydev, MDIO_MMD_VEND2,
-			     index ? MTK_PHY_LED1_BLINK_CTRL :
-				     MTK_PHY_LED0_BLINK_CTRL);
-	if (blink < 0)
-		return -EIO;
-
-	if ((on & (MTK_PHY_LED_ON_LINK | MTK_PHY_LED_ON_FDX | MTK_PHY_LED_ON_HDX |
-		   MTK_PHY_LED_ON_LINKDOWN)) ||
-	    (blink & (MTK_PHY_LED_BLINK_RX | MTK_PHY_LED_BLINK_TX)))
-		set_bit(bit_netdev, &priv->led_state);
-	else
-		clear_bit(bit_netdev, &priv->led_state);
-
-	if (on & MTK_PHY_LED_ON_FORCE_ON)
-		set_bit(bit_on, &priv->led_state);
-	else
-		clear_bit(bit_on, &priv->led_state);
-
-	if (blink & MTK_PHY_LED_BLINK_FORCE_BLINK)
-		set_bit(bit_blink, &priv->led_state);
-	else
-		clear_bit(bit_blink, &priv->led_state);
-
-	if (!rules)
-		return 0;
-
-	if (on & MTK_PHY_LED_ON_LINK)
-		*rules |= BIT(TRIGGER_NETDEV_LINK);
-
-	if (on & MTK_PHY_LED_ON_LINK10)
-		*rules |= BIT(TRIGGER_NETDEV_LINK_10);
-
-	if (on & MTK_PHY_LED_ON_LINK100)
-		*rules |= BIT(TRIGGER_NETDEV_LINK_100);
 
-	if (on & MTK_PHY_LED_ON_LINK1000)
-		*rules |= BIT(TRIGGER_NETDEV_LINK_1000);
-
-	if (on & MTK_PHY_LED_ON_FDX)
-		*rules |= BIT(TRIGGER_NETDEV_FULL_DUPLEX);
-
-	if (on & MTK_PHY_LED_ON_HDX)
-		*rules |= BIT(TRIGGER_NETDEV_HALF_DUPLEX);
-
-	if (blink & MTK_PHY_LED_BLINK_RX)
-		*rules |= BIT(TRIGGER_NETDEV_RX);
-
-	if (blink & MTK_PHY_LED_BLINK_TX)
-		*rules |= BIT(TRIGGER_NETDEV_TX);
-
-	return 0;
+	return mtk_phy_led_hw_ctrl_get(phydev, index, rules, &priv->led_state,
+				       MTK_GPHY_LED_ON_SET,
+				       MTK_GPHY_LED_RX_BLINK_SET,
+				       MTK_GPHY_LED_TX_BLINK_SET);
 };
 
 static int mt798x_phy_led_hw_control_set(struct phy_device *phydev, u8 index,
 					 unsigned long rules)
 {
-	unsigned int bit_netdev = MTK_PHY_LED_STATE_NETDEV + (index ? 16 : 0);
 	struct mtk_socphy_priv *priv = phydev->priv;
-	u16 on = 0, blink = 0;
-	int ret;
-
-	if (index > 1)
-		return -EINVAL;
-
-	if (rules & BIT(TRIGGER_NETDEV_FULL_DUPLEX))
-		on |= MTK_PHY_LED_ON_FDX;
 
-	if (rules & BIT(TRIGGER_NETDEV_HALF_DUPLEX))
-		on |= MTK_PHY_LED_ON_HDX;
-
-	if (rules & (BIT(TRIGGER_NETDEV_LINK_10) | BIT(TRIGGER_NETDEV_LINK)))
-		on |= MTK_PHY_LED_ON_LINK10;
-
-	if (rules & (BIT(TRIGGER_NETDEV_LINK_100) | BIT(TRIGGER_NETDEV_LINK)))
-		on |= MTK_PHY_LED_ON_LINK100;
-
-	if (rules & (BIT(TRIGGER_NETDEV_LINK_1000) | BIT(TRIGGER_NETDEV_LINK)))
-		on |= MTK_PHY_LED_ON_LINK1000;
-
-	if (rules & BIT(TRIGGER_NETDEV_RX)) {
-		blink |= (on & MTK_PHY_LED_ON_LINK) ?
-			  (((on & MTK_PHY_LED_ON_LINK10) ? MTK_PHY_LED_BLINK_10RX : 0) |
-			   ((on & MTK_PHY_LED_ON_LINK100) ? MTK_PHY_LED_BLINK_100RX : 0) |
-			   ((on & MTK_PHY_LED_ON_LINK1000) ? MTK_PHY_LED_BLINK_1000RX : 0)) :
-			  MTK_PHY_LED_BLINK_RX;
-	}
-
-	if (rules & BIT(TRIGGER_NETDEV_TX)) {
-		blink |= (on & MTK_PHY_LED_ON_LINK) ?
-			  (((on & MTK_PHY_LED_ON_LINK10) ? MTK_PHY_LED_BLINK_10TX : 0) |
-			   ((on & MTK_PHY_LED_ON_LINK100) ? MTK_PHY_LED_BLINK_100TX : 0) |
-			   ((on & MTK_PHY_LED_ON_LINK1000) ? MTK_PHY_LED_BLINK_1000TX : 0)) :
-			  MTK_PHY_LED_BLINK_TX;
-	}
-
-	if (blink || on)
-		set_bit(bit_netdev, &priv->led_state);
-	else
-		clear_bit(bit_netdev, &priv->led_state);
-
-	ret = phy_modify_mmd(phydev, MDIO_MMD_VEND2, index ?
-				MTK_PHY_LED1_ON_CTRL :
-				MTK_PHY_LED0_ON_CTRL,
-			     MTK_PHY_LED_ON_FDX     |
-			     MTK_PHY_LED_ON_HDX     |
-			     MTK_PHY_LED_ON_LINK,
-			     on);
-
-	if (ret)
-		return ret;
-
-	return phy_write_mmd(phydev, MDIO_MMD_VEND2, index ?
-				MTK_PHY_LED1_BLINK_CTRL :
-				MTK_PHY_LED0_BLINK_CTRL, blink);
+	return mtk_phy_led_hw_ctrl_set(phydev, index, rules, &priv->led_state,
+				       MTK_GPHY_LED_ON_SET,
+				       MTK_GPHY_LED_RX_BLINK_SET,
+				       MTK_GPHY_LED_TX_BLINK_SET);
 };
 
 static bool mt7988_phy_led_get_polarity(struct phy_device *phydev, int led_num)
@@ -1438,14 +1238,6 @@ static int mt7988_phy_probe_shared(struct phy_device *phydev)
 	return 0;
 }
 
-static void mt798x_phy_leds_state_init(struct phy_device *phydev)
-{
-	int i;
-
-	for (i = 0; i < 2; ++i)
-		mt798x_phy_led_hw_control_get(phydev, i, NULL);
-}
-
 static int mt7988_phy_probe(struct phy_device *phydev)
 {
 	struct mtk_socphy_shared *shared;
@@ -1471,7 +1263,7 @@ static int mt7988_phy_probe(struct phy_device *phydev)
 
 	phydev->priv = priv;
 
-	mt798x_phy_leds_state_init(phydev);
+	mtk_phy_leds_state_init(phydev);
 
 	err = mt7988_phy_fix_leds_polarities(phydev);
 	if (err)
@@ -1498,7 +1290,7 @@ static int mt7981_phy_probe(struct phy_device *phydev)
 
 	phydev->priv = priv;
 
-	mt798x_phy_leds_state_init(phydev);
+	mtk_phy_leds_state_init(phydev);
 
 	return mt798x_phy_calibration(phydev);
 }
diff --git a/drivers/net/phy/mediatek/mtk-phy-lib.c b/drivers/net/phy/mediatek/mtk-phy-lib.c
new file mode 100644
index 0000000..e1fbeff
--- /dev/null
+++ b/drivers/net/phy/mediatek/mtk-phy-lib.c
@@ -0,0 +1,251 @@
+// SPDX-License-Identifier: GPL-2.0
+#include <linux/phy.h>
+#include <linux/module.h>
+
+#include <linux/netdevice.h>
+
+#include "mtk.h"
+
+int mtk_phy_led_hw_is_supported(struct phy_device *phydev, u8 index,
+				unsigned long rules,
+				unsigned long supported_triggers)
+{
+	if (index > 1)
+		return -EINVAL;
+
+	/* All combinations of the supported triggers are allowed */
+	if (rules & ~supported_triggers)
+		return -EOPNOTSUPP;
+
+	return 0;
+}
+EXPORT_SYMBOL_GPL(mtk_phy_led_hw_is_supported);
+
+int mtk_phy_led_hw_ctrl_get(struct phy_device *phydev, u8 index,
+			    unsigned long *rules, unsigned long *led_state,
+			    u16 on_set, u16 rx_blink_set, u16 tx_blink_set)
+{
+	unsigned int bit_blink = MTK_PHY_LED_STATE_FORCE_BLINK +
+				 (index ? 16 : 0);
+	unsigned int bit_netdev = MTK_PHY_LED_STATE_NETDEV + (index ? 16 : 0);
+	unsigned int bit_on = MTK_PHY_LED_STATE_FORCE_ON + (index ? 16 : 0);
+	int on, blink;
+
+	if (index > 1)
+		return -EINVAL;
+
+	on = phy_read_mmd(phydev, MDIO_MMD_VEND2,
+			  index ? MTK_PHY_LED1_ON_CTRL : MTK_PHY_LED0_ON_CTRL);
+
+	if (on < 0)
+		return -EIO;
+
+	blink = phy_read_mmd(phydev, MDIO_MMD_VEND2,
+			     index ? MTK_PHY_LED1_BLINK_CTRL :
+				     MTK_PHY_LED0_BLINK_CTRL);
+	if (blink < 0)
+		return -EIO;
+
+	if ((on & (on_set | MTK_PHY_LED_ON_FDX |
+		   MTK_PHY_LED_ON_HDX | MTK_PHY_LED_ON_LINKDOWN)) ||
+	    (blink & (rx_blink_set | tx_blink_set)))
+		set_bit(bit_netdev, led_state);
+	else
+		clear_bit(bit_netdev, led_state);
+
+	if (on & MTK_PHY_LED_ON_FORCE_ON)
+		set_bit(bit_on, led_state);
+	else
+		clear_bit(bit_on, led_state);
+
+	if (blink & MTK_PHY_LED_BLINK_FORCE_BLINK)
+		set_bit(bit_blink, led_state);
+	else
+		clear_bit(bit_blink, led_state);
+
+	if (!rules)
+		return 0;
+
+	if (on & on_set)
+		*rules |= BIT(TRIGGER_NETDEV_LINK);
+
+	if (on & MTK_PHY_LED_ON_LINK10)
+		*rules |= BIT(TRIGGER_NETDEV_LINK_10);
+
+	if (on & MTK_PHY_LED_ON_LINK100)
+		*rules |= BIT(TRIGGER_NETDEV_LINK_100);
+
+	if (on & MTK_PHY_LED_ON_LINK1000)
+		*rules |= BIT(TRIGGER_NETDEV_LINK_1000);
+
+	if (on & MTK_PHY_LED_ON_LINK2500)
+		*rules |= BIT(TRIGGER_NETDEV_LINK_2500);
+
+	if (on & MTK_PHY_LED_ON_FDX)
+		*rules |= BIT(TRIGGER_NETDEV_FULL_DUPLEX);
+
+	if (on & MTK_PHY_LED_ON_HDX)
+		*rules |= BIT(TRIGGER_NETDEV_HALF_DUPLEX);
+
+	if (blink & rx_blink_set)
+		*rules |= BIT(TRIGGER_NETDEV_RX);
+
+	if (blink & tx_blink_set)
+		*rules |= BIT(TRIGGER_NETDEV_TX);
+
+	return 0;
+}
+EXPORT_SYMBOL_GPL(mtk_phy_led_hw_ctrl_get);
+
+int mtk_phy_led_hw_ctrl_set(struct phy_device *phydev, u8 index,
+			    unsigned long rules, unsigned long *led_state,
+			    u16 on_set, u16 rx_blink_set, u16 tx_blink_set)
+{
+	unsigned int bit_netdev = MTK_PHY_LED_STATE_NETDEV + (index ? 16 : 0);
+	u16 on = 0, blink = 0;
+	int ret;
+
+	if (index > 1)
+		return -EINVAL;
+
+	if (rules & BIT(TRIGGER_NETDEV_FULL_DUPLEX))
+		on |= MTK_PHY_LED_ON_FDX;
+
+	if (rules & BIT(TRIGGER_NETDEV_HALF_DUPLEX))
+		on |= MTK_PHY_LED_ON_HDX;
+
+	if (rules & (BIT(TRIGGER_NETDEV_LINK_10) | BIT(TRIGGER_NETDEV_LINK)))
+		on |= MTK_PHY_LED_ON_LINK10;
+
+	if (rules & (BIT(TRIGGER_NETDEV_LINK_100) | BIT(TRIGGER_NETDEV_LINK)))
+		on |= MTK_PHY_LED_ON_LINK100;
+
+	if (rules & (BIT(TRIGGER_NETDEV_LINK_1000) | BIT(TRIGGER_NETDEV_LINK)))
+		on |= MTK_PHY_LED_ON_LINK1000;
+
+	if (rules & (BIT(TRIGGER_NETDEV_LINK_2500) | BIT(TRIGGER_NETDEV_LINK)))
+		on |= MTK_PHY_LED_ON_LINK2500;
+
+	if (rules & BIT(TRIGGER_NETDEV_RX)) {
+		blink |= (on & on_set) ?
+			  (((on & MTK_PHY_LED_ON_LINK10) ?
+			    MTK_PHY_LED_BLINK_10RX : 0) |
+			   ((on & MTK_PHY_LED_ON_LINK100) ?
+			    MTK_PHY_LED_BLINK_100RX : 0) |
+			   ((on & MTK_PHY_LED_ON_LINK1000) ?
+			    MTK_PHY_LED_BLINK_1000RX : 0) |
+			   ((on & MTK_PHY_LED_ON_LINK2500) ?
+			    MTK_PHY_LED_BLINK_2500RX : 0)) :
+			  rx_blink_set;
+	}
+
+	if (rules & BIT(TRIGGER_NETDEV_TX)) {
+		blink |= (on & on_set) ?
+			  (((on & MTK_PHY_LED_ON_LINK10) ?
+			    MTK_PHY_LED_BLINK_10TX : 0) |
+			   ((on & MTK_PHY_LED_ON_LINK100) ?
+			    MTK_PHY_LED_BLINK_100TX : 0) |
+			   ((on & MTK_PHY_LED_ON_LINK1000) ?
+			    MTK_PHY_LED_BLINK_1000TX : 0) |
+			   ((on & MTK_PHY_LED_ON_LINK2500) ?
+			    MTK_PHY_LED_BLINK_2500TX : 0)) :
+			  tx_blink_set;
+	}
+
+	if (blink || on)
+		set_bit(bit_netdev, led_state);
+	else
+		clear_bit(bit_netdev, led_state);
+
+	ret = phy_modify_mmd(phydev, MDIO_MMD_VEND2, index ?
+			     MTK_PHY_LED1_ON_CTRL : MTK_PHY_LED0_ON_CTRL,
+			     MTK_PHY_LED_ON_FDX | MTK_PHY_LED_ON_HDX | on_set,
+			     on);
+
+	if (ret)
+		return ret;
+
+	return phy_write_mmd(phydev, MDIO_MMD_VEND2, index ?
+			     MTK_PHY_LED1_BLINK_CTRL :
+			     MTK_PHY_LED0_BLINK_CTRL, blink);
+}
+EXPORT_SYMBOL_GPL(mtk_phy_led_hw_ctrl_set);
+
+int mtk_phy_led_num_dly_cfg(u8 index, unsigned long *delay_on,
+			    unsigned long *delay_off, bool *blinking)
+{
+	if (index > 1)
+		return -EINVAL;
+
+	if (delay_on && delay_off && (*delay_on > 0) && (*delay_off > 0)) {
+		*blinking = true;
+		*delay_on = 50;
+		*delay_off = 50;
+	}
+
+	return 0;
+}
+EXPORT_SYMBOL_GPL(mtk_phy_led_num_dly_cfg);
+
+int mtk_phy_hw_led_on_set(struct phy_device *phydev, u8 index,
+			  unsigned long *led_state, u16 led_on_mask, bool on)
+{
+	unsigned int bit_on = MTK_PHY_LED_STATE_FORCE_ON + (index ? 16 : 0);
+	bool changed;
+
+	if (on)
+		changed = !test_and_set_bit(bit_on, led_state);
+	else
+		changed = !!test_and_clear_bit(bit_on, led_state);
+
+	changed |= !!test_and_clear_bit(MTK_PHY_LED_STATE_NETDEV +
+					(index ? 16 : 0), led_state);
+	if (changed)
+		return phy_modify_mmd(phydev, MDIO_MMD_VEND2, index ?
+				      MTK_PHY_LED1_ON_CTRL :
+				      MTK_PHY_LED0_ON_CTRL,
+				      led_on_mask,
+				      on ? MTK_PHY_LED_ON_FORCE_ON : 0);
+	else
+		return 0;
+}
+EXPORT_SYMBOL_GPL(mtk_phy_hw_led_on_set);
+
+int mtk_phy_hw_led_blink_set(struct phy_device *phydev, u8 index,
+			     unsigned long *led_state, bool blinking)
+{
+	unsigned int bit_blink = MTK_PHY_LED_STATE_FORCE_BLINK +
+				 (index ? 16 : 0);
+	bool changed;
+
+	if (blinking)
+		changed = !test_and_set_bit(bit_blink, led_state);
+	else
+		changed = !!test_and_clear_bit(bit_blink, led_state);
+
+	changed |= !!test_bit(MTK_PHY_LED_STATE_NETDEV +
+			      (index ? 16 : 0), led_state);
+	if (changed)
+		return phy_write_mmd(phydev, MDIO_MMD_VEND2, index ?
+				     MTK_PHY_LED1_BLINK_CTRL :
+				     MTK_PHY_LED0_BLINK_CTRL,
+				     blinking ?
+				     MTK_PHY_LED_BLINK_FORCE_BLINK : 0);
+	else
+		return 0;
+}
+EXPORT_SYMBOL_GPL(mtk_phy_hw_led_blink_set);
+
+void mtk_phy_leds_state_init(struct phy_device *phydev)
+{
+	int i;
+
+	for (i = 0; i < 2; ++i)
+		phydev->drv->led_hw_control_get(phydev, i, NULL);
+}
+EXPORT_SYMBOL_GPL(mtk_phy_leds_state_init);
+
+MODULE_DESCRIPTION("MediaTek Ethernet PHY driver common");
+MODULE_AUTHOR("Sky Huang <SkyLake.Huang@mediatek.com>");
+MODULE_AUTHOR("Daniel Golle <daniel@makrotopia.org>");
+MODULE_LICENSE("GPL");
diff --git a/drivers/net/phy/mediatek/mtk.h b/drivers/net/phy/mediatek/mtk.h
new file mode 100644
index 0000000..2fc89e3
--- /dev/null
+++ b/drivers/net/phy/mediatek/mtk.h
@@ -0,0 +1,82 @@
+/* SPDX-License-Identifier: GPL-2.0
+ *
+ * Common definition for Mediatek Ethernet PHYs
+ * Author: SkyLake Huang <SkyLake.Huang@mediatek.com>
+ * Copyright (c) 2024 MediaTek Inc.
+ */
+
+#ifndef _MTK_EPHY_H_
+#define _MTK_EPHY_H_
+
+#define MTK_EXT_PAGE_ACCESS			0x1f
+
+/* Registers on MDIO_MMD_VEND2 */
+#define MTK_PHY_LED0_ON_CTRL			0x24
+#define MTK_PHY_LED1_ON_CTRL			0x26
+#define   MTK_GPHY_LED_ON_MASK			GENMASK(6, 0)
+#define   MTK_2P5GPHY_LED_ON_MASK		GENMASK(7, 0)
+#define   MTK_PHY_LED_ON_LINK1000		BIT(0)
+#define   MTK_PHY_LED_ON_LINK100		BIT(1)
+#define   MTK_PHY_LED_ON_LINK10			BIT(2)
+#define   MTK_PHY_LED_ON_LINKDOWN		BIT(3)
+#define   MTK_PHY_LED_ON_FDX			BIT(4) /* Full duplex */
+#define   MTK_PHY_LED_ON_HDX			BIT(5) /* Half duplex */
+#define   MTK_PHY_LED_ON_FORCE_ON		BIT(6)
+#define   MTK_PHY_LED_ON_LINK2500		BIT(7)
+#define   MTK_PHY_LED_ON_POLARITY		BIT(14)
+#define   MTK_PHY_LED_ON_ENABLE			BIT(15)
+
+#define MTK_PHY_LED0_BLINK_CTRL			0x25
+#define MTK_PHY_LED1_BLINK_CTRL			0x27
+#define   MTK_PHY_LED_BLINK_1000TX		BIT(0)
+#define   MTK_PHY_LED_BLINK_1000RX		BIT(1)
+#define   MTK_PHY_LED_BLINK_100TX		BIT(2)
+#define   MTK_PHY_LED_BLINK_100RX		BIT(3)
+#define   MTK_PHY_LED_BLINK_10TX		BIT(4)
+#define   MTK_PHY_LED_BLINK_10RX		BIT(5)
+#define   MTK_PHY_LED_BLINK_COLLISION		BIT(6)
+#define   MTK_PHY_LED_BLINK_RX_CRC_ERR		BIT(7)
+#define   MTK_PHY_LED_BLINK_RX_IDLE_ERR		BIT(8)
+#define   MTK_PHY_LED_BLINK_FORCE_BLINK		BIT(9)
+#define   MTK_PHY_LED_BLINK_2500TX		BIT(10)
+#define   MTK_PHY_LED_BLINK_2500RX		BIT(11)
+
+#define MTK_GPHY_LED_ON_SET			(MTK_PHY_LED_ON_LINK1000 | \
+						 MTK_PHY_LED_ON_LINK100 | \
+						 MTK_PHY_LED_ON_LINK10)
+#define MTK_GPHY_LED_RX_BLINK_SET		(MTK_PHY_LED_BLINK_1000RX | \
+						 MTK_PHY_LED_BLINK_100RX | \
+						 MTK_PHY_LED_BLINK_10RX)
+#define MTK_GPHY_LED_TX_BLINK_SET		(MTK_PHY_LED_BLINK_1000RX | \
+						 MTK_PHY_LED_BLINK_100RX | \
+						 MTK_PHY_LED_BLINK_10RX)
+
+#define MTK_2P5GPHY_LED_ON_SET			(MTK_PHY_LED_ON_LINK2500 | \
+						 MTK_GPHY_LED_ON_SET)
+#define MTK_2P5GPHY_LED_RX_BLINK_SET		(MTK_PHY_LED_BLINK_2500RX | \
+						 MTK_GPHY_LED_RX_BLINK_SET)
+#define MTK_2P5GPHY_LED_TX_BLINK_SET		(MTK_PHY_LED_BLINK_2500RX | \
+						 MTK_GPHY_LED_TX_BLINK_SET)
+
+#define MTK_PHY_LED_STATE_FORCE_ON	0
+#define MTK_PHY_LED_STATE_FORCE_BLINK	1
+#define MTK_PHY_LED_STATE_NETDEV	2
+
+int mtk_phy_led_hw_is_supported(struct phy_device *phydev, u8 index,
+				unsigned long rules,
+				unsigned long supported_triggers);
+int mtk_phy_led_hw_ctrl_set(struct phy_device *phydev, u8 index,
+			    unsigned long rules, unsigned long *led_state,
+			    u16 on_set, u16 rx_blink_set, u16 tx_blink_set);
+int mtk_phy_led_hw_ctrl_get(struct phy_device *phydev, u8 index,
+			    unsigned long *rules, unsigned long *led_state,
+			    u16 on_set, u16 rx_blink_set, u16 tx_blink_set);
+int mtk_phy_led_num_dly_cfg(u8 index, unsigned long *delay_on,
+			    unsigned long *delay_off, bool *blinking);
+int mtk_phy_hw_led_on_set(struct phy_device *phydev, u8 index,
+			  unsigned long *led_state, u16 led_on_mask, bool on);
+int mtk_phy_hw_led_blink_set(struct phy_device *phydev, u8 index,
+			     unsigned long *led_state, bool blinking);
+void mtk_phy_leds_state_init(struct phy_device *phydev);
+
+#endif /* _MTK_EPHY_H_ */
-- 
2.45.2

>  static int mt798x_phy_led_blink_set(struct phy_device *phydev, u8 index,
>  				    unsigned long *delay_on,
>  				    unsigned long *delay_off)
>  {
> +	struct mtk_socphy_priv *priv = phydev->priv;
>  	bool blinking = false;
>  	int err = 0;
>  
> -	if (index > 1)
> -		return -EINVAL;
> -
> -	if (delay_on && delay_off && (*delay_on > 0) && (*delay_off > 0)) {
> -		blinking = true;
> -		*delay_on = 50;
> -		*delay_off = 50;
> -	}
> +	err = mtk_phy_led_num_dly_cfg(index, delay_on, delay_off, &blinking);
> +	if (err < 0)
> +		return err;
>  
> -	err = mt798x_phy_hw_led_blink_set(phydev, index, blinking);
> +	err = mtk_phy_hw_led_blink_set(phydev, index, &priv->led_state,
> +				       blinking);
>  	if (err)
>  		return err;
>  
> -	return mt798x_phy_hw_led_on_set(phydev, index, false);
> +	return mtk_phy_hw_led_on_set(phydev, index, &priv->led_state,
> +				     MTK_GPHY_LED_ON_MASK, false);
>  }
>  
>  static int mt798x_phy_led_brightness_set(struct phy_device *phydev,
>  					 u8 index, enum led_brightness value)
>  {
> +	struct mtk_socphy_priv *priv = phydev->priv;
>  	int err;
>  
> -	err = mt798x_phy_hw_led_blink_set(phydev, index, false);
> +	err = mtk_phy_hw_led_blink_set(phydev, index, &priv->led_state, false);
>  	if (err)
>  		return err;

If this is just moving code into a shared helper library, why is priv
now needed, when it was not before?

Maybe this needs splitting into two patches, to help explain this
change.

	Andrew

On Sun, 2024-10-06 at 23:28 +0200, Andrew Lunn wrote:
>  	 
> External email : Please do not click links or open attachments until
> you have verified the sender or the content.
>  >  static int mt798x_phy_led_blink_set(struct phy_device *phydev, u8
> index,
> >      unsigned long *delay_on,
> >      unsigned long *delay_off)
> >  {
> > +struct mtk_socphy_priv *priv = phydev->priv;
> >  bool blinking = false;
> >  int err = 0;
> >  
> > -if (index > 1)
> > -return -EINVAL;
> > -
> > -if (delay_on && delay_off && (*delay_on > 0) && (*delay_off > 0))
> {
> > -blinking = true;
> > -*delay_on = 50;
> > -*delay_off = 50;
> > -}
> > +err = mtk_phy_led_num_dly_cfg(index, delay_on, delay_off,
> &blinking);
> > +if (err < 0)
> > +return err;
> >  
> > -err = mt798x_phy_hw_led_blink_set(phydev, index, blinking);
> > +err = mtk_phy_hw_led_blink_set(phydev, index, &priv->led_state,
> > +       blinking);
> >  if (err)
> >  return err;
> >  
> > -return mt798x_phy_hw_led_on_set(phydev, index, false);
> > +return mtk_phy_hw_led_on_set(phydev, index, &priv->led_state,
> > +     MTK_GPHY_LED_ON_MASK, false);
> >  }
> >  
> >  static int mt798x_phy_led_brightness_set(struct phy_device
> *phydev,
> >   u8 index, enum led_brightness value)
> >  {
> > +struct mtk_socphy_priv *priv = phydev->priv;
> >  int err;
> >  
> > -err = mt798x_phy_hw_led_blink_set(phydev, index, false);
> > +err = mtk_phy_hw_led_blink_set(phydev, index, &priv->led_state,
> false);
> >  if (err)
> >  return err;
> 
> If this is just moving code into a shared helper library, why is priv
> now needed, when it was not before?
> 
> Maybe this needs splitting into two patches, to help explain this
> change.
> 
> Andrew

Although this is just "moving code", we need this priv to do some
modification for mt798x_phy_hw_led_blink_set() so that we can move it
to mtk-phy-lib properly.
I was trying to split this patch into two but I'm afraid that will make
this patchset more complex. Is it okay that I add more explanation in
commit message? like:

This patch creates mtk-phy-lib.c & mtk-phy.h and integrates mtk-ge-
soc.c's LED helper functions so that we can use those helper functions
in other MTK's ethernet phy driver.
We need private data passed to
- mtk_phy_hw_led_on_set()
- mtk_phy_hw_led_blink_set()
- mtk_phy_led_hw_ctrl_get()
- mtk_phy_led_hw_ctrl_set()
to make sure these helper functions can be used in both mtk-ge-soc.c &
mtk-ge.c.

BRs,
Sky

> Although this is just "moving code", we need this priv to do some
> modification for mt798x_phy_hw_led_blink_set() so that we can move it
> to mtk-phy-lib properly.

The helper is passed phydev, so it is not clear to me why the helper
cannot do:

struct mtk_socphy_priv *priv = phydev->priv;

same as the old code. Maybe you want a patch first which renames
mtk_socphy_priv to mtk_phy_priv, just to keep with the naming?

Or do you see the need for different PHYs to need different priv
structures?

	Andrew