This patch adds an option in swconfig which allows to disable all leds in AR8327N switch (e.g. on TL-WDR3600/4300, TL-WR1043ND v2, etc.). For example, on TL-WR1043ND v2: "swconfig dev switch0 set disable_all_leds 1" will turn off all switch LEDs (WAN and 4x LAN) and "swconfig dev switch0 set disable_all_leds 0" will turn them on again. OpenWrt t…

ar8327_disable_all_leds_for_swconfig.patch

Index: target/linux/generic/files/drivers/net/phy/ar8216.c
===================================================================
--- target/linux/generic/files/drivers/net/phy/ar8216.c	(wersja 39210)
+++ target/linux/generic/files/drivers/net/phy/ar8216.c	(kopia robocza)
@@ -1903,6 +1903,57 @@
 	return ret;
 }
 
+static int
+ar8xxx_sw_set_disable_all_leds(struct switch_dev *dev,
+			       const struct switch_attr *attr,
+			       struct switch_val *val)
+{
+	struct ar8xxx_priv *priv = swdev_to_ar8xxx(dev);
+	u32 mask;
+
+	if(val->value.i){
+		/* Set PATTERN_EN = 00 (LED always off) for
+		 * both LED_CTRL_RULE in single 32-bit register */
+		u32 mask = ~(BIT(31) | BIT(30) | BIT(14) | BIT(15));
+
+		priv->write(priv, AR8327_REG_LED_CTRL0,
+					priv->read(priv, AR8327_REG_LED_CTRL0) & mask);
+
+		priv->write(priv, AR8327_REG_LED_CTRL1,
+					priv->read(priv, AR8327_REG_LED_CTRL1) & mask);
+
+		priv->write(priv, AR8327_REG_LED_CTRL2,
+					priv->read(priv, AR8327_REG_LED_CTRL2) & mask);
+
+		/* Set LED_PATTERN_EN_XY = 00 (pattern enable for portX LEDY) for
+		 * all ports (1~3) */
+		mask = ~(BITS(8, 25));
+
+		priv->write(priv, AR8327_REG_LED_CTRL3,
+					priv->read(priv, AR8327_REG_LED_CTRL3) & mask);
+	} else {
+		/* Set PATTERN_EN = 11 (LED controlled by LED_RULE registers) */
+		u32 mask = BIT(31) | BIT(30) | BIT(14) | BIT(15);
+
+		priv->write(priv, AR8327_REG_LED_CTRL0,
+					priv->read(priv, AR8327_REG_LED_CTRL0) | mask);
+
+		priv->write(priv, AR8327_REG_LED_CTRL1,
+					priv->read(priv, AR8327_REG_LED_CTRL1) | mask);
+
+		priv->write(priv, AR8327_REG_LED_CTRL2,
+					priv->read(priv, AR8327_REG_LED_CTRL2) | mask);
+
+		/* Set LED_PATTERN_EN_XY = 11 */
+		mask = BITS(8, 25);
+
+		priv->write(priv, AR8327_REG_LED_CTRL3,
+					priv->read(priv, AR8327_REG_LED_CTRL3) | mask);
+	}
+
+	return 0;
+}
+
 static struct switch_attr ar8xxx_sw_attr_globals[] = {
 	{
 		.type = SWITCH_TYPE_INT,
@@ -1999,6 +2050,13 @@
 		.get = ar8xxx_sw_get_mirror_source_port,
 		.max = AR8327_NUM_PORTS - 1
  	},
+	{
+		.type = SWITCH_TYPE_INT,
+		.name = "disable_all_leds",
+		.description = "Disable all switch LEDs",
+		.set = ar8xxx_sw_set_disable_all_leds,
+		.max = 1
+ 	},
 };
 
 static struct switch_attr ar8xxx_sw_attr_port[] = {