brcm63xx: add support for inverting ath9k LED polarity

Some devices with ath9k WiFi require changing the default active low
polarity to high in order to correctly operate the WiFi status LEDs.

Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>

target/linux/brcm63xx/patches-4.4/421-BCM63XX-add-led-pin-for-ath9k.patch

@@ -5,18 +5,18 @@
  	for (i = 0; i < board.has_caldata; i++)
  		pci_enable_ath9k_fixup(board.caldata[i].slot, board.caldata[i].caldata_offset,
 -			board.caldata[i].endian_check);
-+			board.caldata[i].endian_check, board.caldata[i].led_pin);
++			board.caldata[i].endian_check, board.caldata[i].led_pin, board.caldata[i].led_active_high);
  
  	return 0;
  }
 --- a/arch/mips/bcm63xx/pci-ath9k-fixup.c
 +++ b/arch/mips/bcm63xx/pci-ath9k-fixup.c
-@@ -182,13 +182,14 @@ static void ath9k_pci_fixup(struct pci_d
+@@ -182,13 +182,15 @@ static void ath9k_pci_fixup(struct pci_d
  DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATHEROS, PCI_ANY_ID, ath9k_pci_fixup);
  
  void __init pci_enable_ath9k_fixup(unsigned slot, u32 offset,
 -	unsigned endian_check)
-+	unsigned endian_check, int led_pin)
++	unsigned endian_check, int led_pin, bool led_active_high)
  {
  	if (ath9k_num_fixups >= ARRAY_SIZE(ath9k_fixups))
  		return;
@@ -24,16 +24,18 @@
  	ath9k_fixups[ath9k_num_fixups].slot = slot;
  	ath9k_fixups[ath9k_num_fixups].pdata.endian_check = endian_check;
 +	ath9k_fixups[ath9k_num_fixups].pdata.led_pin = led_pin;
++	ath9k_fixups[ath9k_num_fixups].pdata.led_active_high = led_active_high;
  
  	if (!bcm63xx_read_eeprom(ath9k_fixups[ath9k_num_fixups].pdata.eeprom_data, offset))
  		return;
 --- a/arch/mips/include/asm/mach-bcm63xx/board_bcm963xx.h
 +++ b/arch/mips/include/asm/mach-bcm63xx/board_bcm963xx.h
-@@ -21,6 +21,7 @@ struct ath9k_caldata {
+@@ -21,6 +21,8 @@ struct ath9k_caldata {
  	unsigned int	slot;
  	u32		caldata_offset;
  	unsigned int	endian_check:1;
 +	int		led_pin;
++	bool		led_active_high;
  };
  
  /*
@@ -44,6 +46,6 @@
  
  void pci_enable_ath9k_fixup(unsigned slot, u32 offset,
 -	unsigned endian_check) __init;
-+	unsigned endian_check, int led_pin) __init;
++	unsigned endian_check, int led_pin, bool led_active_high) __init;
  
  #endif /* _PCI_ATH9K_FIXUP */

target/linux/brcm63xx/patches-4.4/422-BCM63XX-add-a-fixup-for-rt2x00-devices.patch

@@ -42,13 +42,13 @@ Subject: [PATCH 72/72] 446-BCM63XX-add-a-fixup-for-rt2x00-devices
  	/* register any fixups */
 -	for (i = 0; i < board.has_caldata; i++)
 -		pci_enable_ath9k_fixup(board.caldata[i].slot, board.caldata[i].caldata_offset,
--			board.caldata[i].endian_check, board.caldata[i].led_pin);
+-			board.caldata[i].endian_check, board.caldata[i].led_pin, board.caldata[i].led_active_high);
 +	for (i = 0; i < board.has_caldata; i++) {
 +		switch (board.caldata[i].vendor) {
 +		case PCI_VENDOR_ID_ATHEROS:
 +			pci_enable_ath9k_fixup(board.caldata[i].slot,
 +				board.caldata[i].caldata_offset, board.caldata[i].endian_check,
-+				board.caldata[i].led_pin);
++				board.caldata[i].led_pin, board.caldata[i].led_active_high);
 +			break;
 +		case PCI_VENDOR_ID_RALINK:
 +			pci_enable_rt2x00_fixup(board.caldata[i].slot,
@@ -166,7 +166,7 @@ Subject: [PATCH 72/72] 446-BCM63XX-add-a-fixup-for-rt2x00-devices
  
  /*
   * flash mapping
-@@ -17,11 +18,15 @@
+@@ -17,12 +18,16 @@
  #define BCM963XX_CFE_VERSION_OFFSET	0x570
  #define BCM963XX_NVRAM_OFFSET		0x580
  
@@ -178,12 +178,13 @@ Subject: [PATCH 72/72] 446-BCM63XX-add-a-fixup-for-rt2x00-devices
 +	/* Atheros */
  	unsigned int	endian_check:1;
  	int		led_pin;
+ 	bool		led_active_high;
 +	/* Ralink */
 +	char*		eeprom;
  };
  
  /*
-@@ -47,7 +52,7 @@ struct board_info {
+@@ -48,7 +53,7 @@ struct board_info {
  	unsigned int	has_caldata:2;
  
  	/* wifi calibration data config */