Merging upstream version 6.10.3.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

4 files changed, 311 insertions, 57 deletions

diff --git a/drivers/net/dsa/realtek/realtek.h b/drivers/net/dsa/realtek/realtek.h
index e0b1aa0133..a1b2e0b529 100644
--- a/drivers/net/dsa/realtek/realtek.h
+++ b/drivers/net/dsa/realtek/realtek.h
@@ -17,6 +17,7 @@
 #define REALTEK_HW_STOP_DELAY		25	/* msecs */
 #define REALTEK_HW_START_DELAY		100	/* msecs */
 
+struct phylink_mac_ops;
 struct realtek_ops;
 struct dentry;
 struct inode;
@@ -117,6 +118,7 @@ struct realtek_ops {
 struct realtek_variant {
 	const struct dsa_switch_ops *ds_ops;
 	const struct realtek_ops *ops;
+	const struct phylink_mac_ops *phylink_mac_ops;
 	unsigned int clk_delay;
 	u8 cmd_read;
 	u8 cmd_write;
diff --git a/drivers/net/dsa/realtek/rtl8365mb.c b/drivers/net/dsa/realtek/rtl8365mb.c
index 12665a8a34..b9674f68b7 100644
--- a/drivers/net/dsa/realtek/rtl8365mb.c
+++ b/drivers/net/dsa/realtek/rtl8365mb.c
@@ -1048,11 +1048,13 @@ static void rtl8365mb_phylink_get_caps(struct dsa_switch *ds, int port,
 		phy_interface_set_rgmii(config->supported_interfaces);
 }
 
-static void rtl8365mb_phylink_mac_config(struct dsa_switch *ds, int port,
+static void rtl8365mb_phylink_mac_config(struct phylink_config *config,
 					 unsigned int mode,
 					 const struct phylink_link_state *state)
 {
-	struct realtek_priv *priv = ds->priv;
+	struct dsa_port *dp = dsa_phylink_to_port(config);
+	struct realtek_priv *priv = dp->ds->priv;
+	u8 port = dp->index;
 	int ret;
 
 	if (mode != MLO_AN_PHY && mode != MLO_AN_FIXED) {
@@ -1076,13 +1078,15 @@ static void rtl8365mb_phylink_mac_config(struct dsa_switch *ds, int port,
 	 */
 }
 
-static void rtl8365mb_phylink_mac_link_down(struct dsa_switch *ds, int port,
+static void rtl8365mb_phylink_mac_link_down(struct phylink_config *config,
 					    unsigned int mode,
 					    phy_interface_t interface)
 {
-	struct realtek_priv *priv = ds->priv;
+	struct dsa_port *dp = dsa_phylink_to_port(config);
+	struct realtek_priv *priv = dp->ds->priv;
 	struct rtl8365mb_port *p;
 	struct rtl8365mb *mb;
+	u8 port = dp->index;
 	int ret;
 
 	mb = priv->chip_data;
@@ -1101,16 +1105,18 @@ static void rtl8365mb_phylink_mac_link_down(struct dsa_switch *ds, int port,
 	}
 }
 
-static void rtl8365mb_phylink_mac_link_up(struct dsa_switch *ds, int port,
+static void rtl8365mb_phylink_mac_link_up(struct phylink_config *config,
+					  struct phy_device *phydev,
 					  unsigned int mode,
 					  phy_interface_t interface,
-					  struct phy_device *phydev, int speed,
-					  int duplex, bool tx_pause,
+					  int speed, int duplex, bool tx_pause,
 					  bool rx_pause)
 {
-	struct realtek_priv *priv = ds->priv;
+	struct dsa_port *dp = dsa_phylink_to_port(config);
+	struct realtek_priv *priv = dp->ds->priv;
 	struct rtl8365mb_port *p;
 	struct rtl8365mb *mb;
+	u8 port = dp->index;
 	int ret;
 
 	mb = priv->chip_data;
@@ -2106,15 +2112,18 @@ static int rtl8365mb_detect(struct realtek_priv *priv)
 	return 0;
 }
 
+static const struct phylink_mac_ops rtl8365mb_phylink_mac_ops = {
+	.mac_config = rtl8365mb_phylink_mac_config,
+	.mac_link_down = rtl8365mb_phylink_mac_link_down,
+	.mac_link_up = rtl8365mb_phylink_mac_link_up,
+};
+
 static const struct dsa_switch_ops rtl8365mb_switch_ops = {
 	.get_tag_protocol = rtl8365mb_get_tag_protocol,
 	.change_tag_protocol = rtl8365mb_change_tag_protocol,
 	.setup = rtl8365mb_setup,
 	.teardown = rtl8365mb_teardown,
 	.phylink_get_caps = rtl8365mb_phylink_get_caps,
-	.phylink_mac_config = rtl8365mb_phylink_mac_config,
-	.phylink_mac_link_down = rtl8365mb_phylink_mac_link_down,
-	.phylink_mac_link_up = rtl8365mb_phylink_mac_link_up,
 	.port_stp_state_set = rtl8365mb_port_stp_state_set,
 	.get_strings = rtl8365mb_get_strings,
 	.get_ethtool_stats = rtl8365mb_get_ethtool_stats,
@@ -2136,6 +2145,7 @@ static const struct realtek_ops rtl8365mb_ops = {
 const struct realtek_variant rtl8365mb_variant = {
 	.ds_ops = &rtl8365mb_switch_ops,
 	.ops = &rtl8365mb_ops,
+	.phylink_mac_ops = &rtl8365mb_phylink_mac_ops,
 	.clk_delay = 10,
 	.cmd_read = 0xb9,
 	.cmd_write = 0xb8,
diff --git a/drivers/net/dsa/realtek/rtl8366rb.c b/drivers/net/dsa/realtek/rtl8366rb.c
index 5ccb1a3a14..9e821b42e5 100644
--- a/drivers/net/dsa/realtek/rtl8366rb.c
+++ b/drivers/net/dsa/realtek/rtl8366rb.c
@@ -176,6 +176,7 @@
 #define RTL8366RB_VLAN_INGRESS_CTRL2_REG	0x037f
 
 /* LED control registers */
+/* The LED blink rate is global; it is used by all triggers in all groups. */
 #define RTL8366RB_LED_BLINKRATE_REG		0x0430
 #define RTL8366RB_LED_BLINKRATE_MASK		0x0007
 #define RTL8366RB_LED_BLINKRATE_28MS		0x0000
@@ -191,31 +192,21 @@
 	(4 * (led_group))
 #define RTL8366RB_LED_CTRL_MASK(led_group)	\
 	(0xf << RTL8366RB_LED_CTRL_OFFSET(led_group))
-#define RTL8366RB_LED_OFF			0x0
-#define RTL8366RB_LED_DUP_COL			0x1
-#define RTL8366RB_LED_LINK_ACT			0x2
-#define RTL8366RB_LED_SPD1000			0x3
-#define RTL8366RB_LED_SPD100			0x4
-#define RTL8366RB_LED_SPD10			0x5
-#define RTL8366RB_LED_SPD1000_ACT		0x6
-#define RTL8366RB_LED_SPD100_ACT		0x7
-#define RTL8366RB_LED_SPD10_ACT			0x8
-#define RTL8366RB_LED_SPD100_10_ACT		0x9
-#define RTL8366RB_LED_FIBER			0xa
-#define RTL8366RB_LED_AN_FAULT			0xb
-#define RTL8366RB_LED_LINK_RX			0xc
-#define RTL8366RB_LED_LINK_TX			0xd
-#define RTL8366RB_LED_MASTER			0xe
-#define RTL8366RB_LED_FORCE			0xf
 
 /* The RTL8366RB_LED_X_X registers are used to manually set the LED state only
  * when the corresponding LED group in RTL8366RB_LED_CTRL_REG is
- * RTL8366RB_LED_FORCE. Otherwise, it is ignored.
+ * RTL8366RB_LEDGROUP_FORCE. Otherwise, it is ignored.
  */
 #define RTL8366RB_LED_0_1_CTRL_REG		0x0432
-#define RTL8366RB_LED_1_OFFSET			6
 #define RTL8366RB_LED_2_3_CTRL_REG		0x0433
-#define RTL8366RB_LED_3_OFFSET			6
+#define RTL8366RB_LED_X_X_CTRL_REG(led_group)	\
+	((led_group) <= 1 ? \
+		RTL8366RB_LED_0_1_CTRL_REG : \
+		RTL8366RB_LED_2_3_CTRL_REG)
+#define RTL8366RB_LED_0_X_CTRL_MASK		GENMASK(5, 0)
+#define RTL8366RB_LED_X_1_CTRL_MASK		GENMASK(11, 6)
+#define RTL8366RB_LED_2_X_CTRL_MASK		GENMASK(5, 0)
+#define RTL8366RB_LED_X_3_CTRL_MASK		GENMASK(11, 6)
 
 #define RTL8366RB_MIB_COUNT			33
 #define RTL8366RB_GLOBAL_MIB_COUNT		1
@@ -359,14 +350,44 @@
 #define RTL8366RB_GREEN_FEATURE_TX	BIT(0)
 #define RTL8366RB_GREEN_FEATURE_RX	BIT(2)
 
+enum rtl8366_ledgroup_mode {
+	RTL8366RB_LEDGROUP_OFF			= 0x0,
+	RTL8366RB_LEDGROUP_DUP_COL		= 0x1,
+	RTL8366RB_LEDGROUP_LINK_ACT		= 0x2,
+	RTL8366RB_LEDGROUP_SPD1000		= 0x3,
+	RTL8366RB_LEDGROUP_SPD100		= 0x4,
+	RTL8366RB_LEDGROUP_SPD10		= 0x5,
+	RTL8366RB_LEDGROUP_SPD1000_ACT		= 0x6,
+	RTL8366RB_LEDGROUP_SPD100_ACT		= 0x7,
+	RTL8366RB_LEDGROUP_SPD10_ACT		= 0x8,
+	RTL8366RB_LEDGROUP_SPD100_10_ACT	= 0x9,
+	RTL8366RB_LEDGROUP_FIBER		= 0xa,
+	RTL8366RB_LEDGROUP_AN_FAULT		= 0xb,
+	RTL8366RB_LEDGROUP_LINK_RX		= 0xc,
+	RTL8366RB_LEDGROUP_LINK_TX		= 0xd,
+	RTL8366RB_LEDGROUP_MASTER		= 0xe,
+	RTL8366RB_LEDGROUP_FORCE		= 0xf,
+
+	__RTL8366RB_LEDGROUP_MODE_MAX
+};
+
+struct rtl8366rb_led {
+	u8 port_num;
+	u8 led_group;
+	struct realtek_priv *priv;
+	struct led_classdev cdev;
+};
+
 /**
  * struct rtl8366rb - RTL8366RB-specific data
  * @max_mtu: per-port max MTU setting
  * @pvid_enabled: if PVID is set for respective port
+ * @leds: per-port and per-ledgroup led info
  */
 struct rtl8366rb {
 	unsigned int max_mtu[RTL8366RB_NUM_PORTS];
 	bool pvid_enabled[RTL8366RB_NUM_PORTS];
+	struct rtl8366rb_led leds[RTL8366RB_NUM_PORTS][RTL8366RB_NUM_LEDGROUPS];
 };
 
 static struct rtl8366_mib_counter rtl8366rb_mib_counters[] = {
@@ -809,6 +830,217 @@ static int rtl8366rb_jam_table(const struct rtl8366rb_jam_tbl_entry *jam_table,
 	return 0;
 }
 
+static int rb8366rb_set_ledgroup_mode(struct realtek_priv *priv,
+				      u8 led_group,
+				      enum rtl8366_ledgroup_mode mode)
+{
+	int ret;
+	u32 val;
+
+	val = mode << RTL8366RB_LED_CTRL_OFFSET(led_group);
+
+	ret = regmap_update_bits(priv->map,
+				 RTL8366RB_LED_CTRL_REG,
+				 RTL8366RB_LED_CTRL_MASK(led_group),
+				 val);
+	if (ret)
+		return ret;
+
+	return 0;
+}
+
+static inline u32 rtl8366rb_led_group_port_mask(u8 led_group, u8 port)
+{
+	switch (led_group) {
+	case 0:
+		return FIELD_PREP(RTL8366RB_LED_0_X_CTRL_MASK, BIT(port));
+	case 1:
+		return FIELD_PREP(RTL8366RB_LED_0_X_CTRL_MASK, BIT(port));
+	case 2:
+		return FIELD_PREP(RTL8366RB_LED_0_X_CTRL_MASK, BIT(port));
+	case 3:
+		return FIELD_PREP(RTL8366RB_LED_0_X_CTRL_MASK, BIT(port));
+	default:
+		return 0;
+	}
+}
+
+static int rb8366rb_get_port_led(struct rtl8366rb_led *led)
+{
+	struct realtek_priv *priv = led->priv;
+	u8 led_group = led->led_group;
+	u8 port_num = led->port_num;
+	int ret;
+	u32 val;
+
+	ret = regmap_read(priv->map, RTL8366RB_LED_X_X_CTRL_REG(led_group),
+			  &val);
+	if (ret) {
+		dev_err(priv->dev, "error reading LED on port %d group %d\n",
+			led_group, port_num);
+		return ret;
+	}
+
+	return !!(val & rtl8366rb_led_group_port_mask(led_group, port_num));
+}
+
+static int rb8366rb_set_port_led(struct rtl8366rb_led *led, bool enable)
+{
+	struct realtek_priv *priv = led->priv;
+	u8 led_group = led->led_group;
+	u8 port_num = led->port_num;
+	int ret;
+
+	ret = regmap_update_bits(priv->map,
+				 RTL8366RB_LED_X_X_CTRL_REG(led_group),
+				 rtl8366rb_led_group_port_mask(led_group,
+							       port_num),
+				 enable ? 0xffff : 0);
+	if (ret) {
+		dev_err(priv->dev, "error updating LED on port %d group %d\n",
+			led_group, port_num);
+		return ret;
+	}
+
+	/* Change the LED group to manual controlled LEDs if required */
+	ret = rb8366rb_set_ledgroup_mode(priv, led_group,
+					 RTL8366RB_LEDGROUP_FORCE);
+
+	if (ret) {
+		dev_err(priv->dev, "error updating LED GROUP group %d\n",
+			led_group);
+		return ret;
+	}
+
+	return 0;
+}
+
+static int
+rtl8366rb_cled_brightness_set_blocking(struct led_classdev *ldev,
+				       enum led_brightness brightness)
+{
+	struct rtl8366rb_led *led = container_of(ldev, struct rtl8366rb_led,
+						 cdev);
+
+	return rb8366rb_set_port_led(led, brightness == LED_ON);
+}
+
+static int rtl8366rb_setup_led(struct realtek_priv *priv, struct dsa_port *dp,
+			       struct fwnode_handle *led_fwnode)
+{
+	struct rtl8366rb *rb = priv->chip_data;
+	struct led_init_data init_data = { };
+	enum led_default_state state;
+	struct rtl8366rb_led *led;
+	u32 led_group;
+	int ret;
+
+	ret = fwnode_property_read_u32(led_fwnode, "reg", &led_group);
+	if (ret)
+		return ret;
+
+	if (led_group >= RTL8366RB_NUM_LEDGROUPS) {
+		dev_warn(priv->dev, "Invalid LED reg %d defined for port %d",
+			 led_group, dp->index);
+		return -EINVAL;
+	}
+
+	led = &rb->leds[dp->index][led_group];
+	led->port_num = dp->index;
+	led->led_group = led_group;
+	led->priv = priv;
+
+	state = led_init_default_state_get(led_fwnode);
+	switch (state) {
+	case LEDS_DEFSTATE_ON:
+		led->cdev.brightness = 1;
+		rb8366rb_set_port_led(led, 1);
+		break;
+	case LEDS_DEFSTATE_KEEP:
+		led->cdev.brightness =
+			rb8366rb_get_port_led(led);
+		break;
+	case LEDS_DEFSTATE_OFF:
+	default:
+		led->cdev.brightness = 0;
+		rb8366rb_set_port_led(led, 0);
+	}
+
+	led->cdev.max_brightness = 1;
+	led->cdev.brightness_set_blocking =
+		rtl8366rb_cled_brightness_set_blocking;
+	init_data.fwnode = led_fwnode;
+	init_data.devname_mandatory = true;
+
+	init_data.devicename = kasprintf(GFP_KERNEL, "Realtek-%d:0%d:%d",
+					 dp->ds->index, dp->index, led_group);
+	if (!init_data.devicename)
+		return -ENOMEM;
+
+	ret = devm_led_classdev_register_ext(priv->dev, &led->cdev, &init_data);
+	if (ret) {
+		dev_warn(priv->dev, "Failed to init LED %d for port %d",
+			 led_group, dp->index);
+		return ret;
+	}
+
+	return 0;
+}
+
+static int rtl8366rb_setup_all_leds_off(struct realtek_priv *priv)
+{
+	int ret = 0;
+	int i;
+
+	regmap_update_bits(priv->map,
+			   RTL8366RB_INTERRUPT_CONTROL_REG,
+			   RTL8366RB_P4_RGMII_LED,
+			   0);
+
+	for (i = 0; i < RTL8366RB_NUM_LEDGROUPS; i++) {
+		ret = rb8366rb_set_ledgroup_mode(priv, i,
+						 RTL8366RB_LEDGROUP_OFF);
+		if (ret)
+			return ret;
+	}
+
+	return ret;
+}
+
+static int rtl8366rb_setup_leds(struct realtek_priv *priv)
+{
+	struct device_node *leds_np, *led_np;
+	struct dsa_switch *ds = &priv->ds;
+	struct dsa_port *dp;
+	int ret = 0;
+
+	dsa_switch_for_each_port(dp, ds) {
+		if (!dp->dn)
+			continue;
+
+		leds_np = of_get_child_by_name(dp->dn, "leds");
+		if (!leds_np) {
+			dev_dbg(priv->dev, "No leds defined for port %d",
+				dp->index);
+			continue;
+		}
+
+		for_each_child_of_node(leds_np, led_np) {
+			ret = rtl8366rb_setup_led(priv, dp,
+						  of_fwnode_handle(led_np));
+			if (ret) {
+				of_node_put(led_np);
+				break;
+			}
+		}
+
+		of_node_put(leds_np);
+		if (ret)
+			return ret;
+	}
+	return 0;
+}
+
 static int rtl8366rb_setup(struct dsa_switch *ds)
 {
 	struct realtek_priv *priv = ds->priv;
@@ -817,7 +1049,6 @@ static int rtl8366rb_setup(struct dsa_switch *ds)
 	u32 chip_ver = 0;
 	u32 chip_id = 0;
 	int jam_size;
-	u32 val;
 	int ret;
 	int i;
 
@@ -997,7 +1228,9 @@ static int rtl8366rb_setup(struct dsa_switch *ds)
 	if (ret)
 		return ret;
 
-	/* Set blinking, TODO: make this configurable */
+	/* Set blinking, used by all LED groups using HW triggers.
+	 * TODO: make this configurable
+	 */
 	ret = regmap_update_bits(priv->map, RTL8366RB_LED_BLINKRATE_REG,
 				 RTL8366RB_LED_BLINKRATE_MASK,
 				 RTL8366RB_LED_BLINKRATE_56MS);
@@ -1005,26 +1238,19 @@ static int rtl8366rb_setup(struct dsa_switch *ds)
 		return ret;
 
 	/* Set up LED activity:
-	 * Each port has 4 LEDs, we configure all ports to the same
-	 * behaviour (no individual config) but we can set up each
-	 * LED separately.
+	 * Each port has 4 LEDs on fixed groups. Each group shares the same
+	 * hardware trigger across all ports. LEDs can only be indiviually
+	 * controlled setting the LED group to fixed mode and using the driver
+	 * to toggle them LEDs on/off.
 	 */
 	if (priv->leds_disabled) {
-		/* Turn everything off */
-		regmap_update_bits(priv->map,
-				   RTL8366RB_INTERRUPT_CONTROL_REG,
-				   RTL8366RB_P4_RGMII_LED,
-				   0);
-
-		for (i = 0; i < RTL8366RB_NUM_LEDGROUPS; i++) {
-			val = RTL8366RB_LED_OFF << RTL8366RB_LED_CTRL_OFFSET(i);
-			ret = regmap_update_bits(priv->map,
-						 RTL8366RB_LED_CTRL_REG,
-						 RTL8366RB_LED_CTRL_MASK(i),
-						 val);
-			if (ret)
-				return ret;
-		}
+		ret = rtl8366rb_setup_all_leds_off(priv);
+		if (ret)
+			return ret;
+	} else {
+		ret = rtl8366rb_setup_leds(priv);
+		if (ret)
+			return ret;
 	}
 
 	ret = rtl8366_reset_vlan(priv);
@@ -1079,11 +1305,19 @@ static void rtl8366rb_phylink_get_caps(struct dsa_switch *ds, int port,
 }
 
 static void
-rtl8366rb_mac_link_up(struct dsa_switch *ds, int port, unsigned int mode,
-		      phy_interface_t interface, struct phy_device *phydev,
+rtl8366rb_mac_config(struct phylink_config *config, unsigned int mode,
+		     const struct phylink_link_state *state)
+{
+}
+
+static void
+rtl8366rb_mac_link_up(struct phylink_config *config, struct phy_device *phydev,
+		      unsigned int mode, phy_interface_t interface,
 		      int speed, int duplex, bool tx_pause, bool rx_pause)
 {
-	struct realtek_priv *priv = ds->priv;
+	struct dsa_port *dp = dsa_phylink_to_port(config);
+	struct realtek_priv *priv = dp->ds->priv;
+	int port = dp->index;
 	unsigned int val;
 	int ret;
 
@@ -1149,10 +1383,12 @@ rtl8366rb_mac_link_up(struct dsa_switch *ds, int port, unsigned int mode,
 }
 
 static void
-rtl8366rb_mac_link_down(struct dsa_switch *ds, int port, unsigned int mode,
+rtl8366rb_mac_link_down(struct phylink_config *config, unsigned int mode,
 			phy_interface_t interface)
 {
-	struct realtek_priv *priv = ds->priv;
+	struct dsa_port *dp = dsa_phylink_to_port(config);
+	struct realtek_priv *priv = dp->ds->priv;
+	int port = dp->index;
 	int ret;
 
 	if (port != priv->cpu_port)
@@ -1802,12 +2038,16 @@ static int rtl8366rb_detect(struct realtek_priv *priv)
 	return 0;
 }
 
+static const struct phylink_mac_ops rtl8366rb_phylink_mac_ops = {
+	.mac_config = rtl8366rb_mac_config,
+	.mac_link_down = rtl8366rb_mac_link_down,
+	.mac_link_up = rtl8366rb_mac_link_up,
+};
+
 static const struct dsa_switch_ops rtl8366rb_switch_ops = {
 	.get_tag_protocol = rtl8366_get_tag_protocol,
 	.setup = rtl8366rb_setup,
 	.phylink_get_caps = rtl8366rb_phylink_get_caps,
-	.phylink_mac_link_up = rtl8366rb_mac_link_up,
-	.phylink_mac_link_down = rtl8366rb_mac_link_down,
 	.get_strings = rtl8366_get_strings,
 	.get_ethtool_stats = rtl8366_get_ethtool_stats,
 	.get_sset_count = rtl8366_get_sset_count,
@@ -1845,6 +2085,7 @@ static const struct realtek_ops rtl8366rb_ops = {
 const struct realtek_variant rtl8366rb_variant = {
 	.ds_ops = &rtl8366rb_switch_ops,
 	.ops = &rtl8366rb_ops,
+	.phylink_mac_ops = &rtl8366rb_phylink_mac_ops,
 	.clk_delay = 10,
 	.cmd_read = 0xa9,
 	.cmd_write = 0xa8,
diff --git a/drivers/net/dsa/realtek/rtl83xx.c b/drivers/net/dsa/realtek/rtl83xx.c
index a9c1702431..35709a1756 100644
--- a/drivers/net/dsa/realtek/rtl83xx.c
+++ b/drivers/net/dsa/realtek/rtl83xx.c
@@ -236,6 +236,7 @@ int rtl83xx_register_switch(struct realtek_priv *priv)
 	ds->priv = priv;
 	ds->dev = priv->dev;
 	ds->ops = priv->variant->ds_ops;
+	ds->phylink_mac_ops = priv->variant->phylink_mac_ops;
 	ds->num_ports = priv->num_ports;
 
 	ret = dsa_register_switch(ds);