kernel: hack: support inverted LEDs on MaxLinear GPY211 PHY

Add downstream DT property to setup the PHY LEDs of the MaxLinear
GPY211 PHY in such way that the VDD of the LED is driven by the SoC
pin rather than the GND (which is the default).

Signed-off-by: Daniel Golle <daniel@makrotopia.org>
(cherry picked from commit 90fbec89be263a3838558c5b674f3c4072cc2f1d)
[removed patches for kernel 6.1]
Signed-off-by: Tom Herbers <mail@tomherbers.de>

2 files changed, 11 insertions, 7 deletions

diff --git a/target/linux/generic/hack-5.15/765-mxl-gpy-control-LED-reg-from-DT.patch b/target/linux/generic/hack-5.15/765-mxl-gpy-control-LED-reg-from-DT.patch
index 8de3668def..95e9749d91 100644
--- a/target/linux/generic/hack-5.15/765-mxl-gpy-control-LED-reg-from-DT.patch
+++ b/target/linux/generic/hack-5.15/765-mxl-gpy-control-LED-reg-from-DT.patch
@@ -55,7 +55,7 @@ Signed-off-by: David Bauer <mail@david-bauer.net>
  /* SGMII */
  #define VSPEC1_SGMII_CTRL	0x08
  #define VSPEC1_SGMII_CTRL_ANEN	BIT(12)		/* Aneg enable */
-@@ -80,6 +87,31 @@ static const struct {
+@@ -80,6 +87,35 @@ static const struct {
  	{9, 0x73},
  };
  
@@ -64,6 +64,7 @@ Signed-off-by: David Bauer <mail@david-bauer.net>
 +	struct device_node *node = phydev->mdio.dev.of_node;
 +	u32 led_regs[PHY_LED_NUM_LEDS];
 +	int i, ret;
++	u16 val = 0xff00;
 +
 +	if (!IS_ENABLED(CONFIG_OF_MDIO))
 +		return 0;
@@ -71,8 +72,11 @@ Signed-off-by: David Bauer <mail@david-bauer.net>
 +	if (of_property_read_u32_array(node, "mxl,led-config", led_regs, PHY_LED_NUM_LEDS))
 +		return 0;
 +
++	if (of_property_read_bool(node, "mxl,led-drive-vdd"))
++		val &= 0x0fff;
++
 +	/* Enable LED function handling on all ports*/
-+	phy_write(phydev, PHY_LED, 0xFF00);
++	phy_write(phydev, PHY_LED, val);
 +
 +	/* Write LED register values */
 +	for (i = 0; i < PHY_LED_NUM_LEDS; i++) {
@@ -87,7 +91,7 @@ Signed-off-by: David Bauer <mail@david-bauer.net>
  static int gpy_config_init(struct phy_device *phydev)
  {
  	int ret;
-@@ -91,7 +123,10 @@ static int gpy_config_init(struct phy_de
+@@ -91,7 +127,10 @@ static int gpy_config_init(struct phy_de
  
  	/* Clear all pending interrupts */
  	ret = phy_read(phydev, PHY_ISTAT);
diff --git a/target/linux/mediatek/patches-5.15/732-net-phy-mxl-gpy-don-t-use-SGMII-AN-if-using-phylink.patch b/target/linux/mediatek/patches-5.15/732-net-phy-mxl-gpy-don-t-use-SGMII-AN-if-using-phylink.patch
index 598d9d0d21..6df4436ab9 100644
--- a/target/linux/mediatek/patches-5.15/732-net-phy-mxl-gpy-don-t-use-SGMII-AN-if-using-phylink.patch
+++ b/target/linux/mediatek/patches-5.15/732-net-phy-mxl-gpy-don-t-use-SGMII-AN-if-using-phylink.patch
@@ -14,7 +14,7 @@ Signed-off-by: Daniel Golle <daniel@makrotopia.org>
 
 --- a/drivers/net/phy/mxl-gpy.c
 +++ b/drivers/net/phy/mxl-gpy.c
-@@ -191,8 +191,11 @@ static bool gpy_2500basex_chk(struct phy
+@@ -195,8 +195,11 @@ static bool gpy_2500basex_chk(struct phy
  
  	phydev->speed = SPEED_2500;
  	phydev->interface = PHY_INTERFACE_MODE_2500BASEX;
@@ -28,7 +28,7 @@ Signed-off-by: Daniel Golle <daniel@makrotopia.org>
  	return true;
  }
  
-@@ -216,6 +219,14 @@ static int gpy_config_aneg(struct phy_de
+@@ -220,6 +223,14 @@ static int gpy_config_aneg(struct phy_de
  	u32 adv;
  	int ret;
  
@@ -43,7 +43,7 @@ Signed-off-by: Daniel Golle <daniel@makrotopia.org>
  	if (phydev->autoneg == AUTONEG_DISABLE) {
  		/* Configure half duplex with genphy_setup_forced,
  		 * because genphy_c45_pma_setup_forced does not support.
-@@ -306,6 +317,8 @@ static void gpy_update_interface(struct
+@@ -310,6 +321,8 @@ static void gpy_update_interface(struct
  	switch (phydev->speed) {
  	case SPEED_2500:
  		phydev->interface = PHY_INTERFACE_MODE_2500BASEX;
@@ -52,7 +52,7 @@ Signed-off-by: Daniel Golle <daniel@makrotopia.org>
  		ret = phy_modify_mmd(phydev, MDIO_MMD_VEND1, VSPEC1_SGMII_CTRL,
  				     VSPEC1_SGMII_CTRL_ANEN, 0);
  		if (ret < 0)
-@@ -317,7 +330,7 @@ static void gpy_update_interface(struct
+@@ -321,7 +334,7 @@ static void gpy_update_interface(struct
  	case SPEED_100:
  	case SPEED_10:
  		phydev->interface = PHY_INTERFACE_MODE_SGMII;