mac80211: rt2x00: fix LED polarity patch

The patch causes compiler warning ...

  <...>/drivers/net/wireless/rt2x00/rt2800lib.c: In function 'rt2800_init_eeprom':
  <...>/drivers/net/wireless/rt2x00/rt2800lib.c:5971:2: warning: ISO C90 forbids mixed declarations and code [-Wdeclaration-after-statement]

... and runtime errors on PCI/USB devices:

  [   11.810000] ieee80211 phy0: rt2x00_set_rt: Info - RT chipset 3071, rev 021c detected
  [   11.830000] ieee80211 phy0: rt2x00_set_rf: Info - RF chipset 0001 detected
  [   11.880000] rt2x00mmio_regbusy_read() Indirect register access failed: offset=0x00007010, value=0x01ff0001
  [   12.080000] usb 1-1: reset high-speed USB device number 2 using ehci-platform
  [   12.250000] ieee80211 phy1: rt2x00_set_rt: Info - RT chipset 5592, rev 0222 detecte
  [   12.300000] ieee80211 phy1: rt2x00_set_rf: Info - RF chipset 000f detected
  [   12.350000] ieee80211 phy1: rt2x00usb_regbusy_read: Error - Indirect register access failed: offset=0x00007010, value=0x1a93b47
  [   12.430000] ieee80211 phy1: rt2x00usb_regbusy_read: Error - Indirect register access failed: offset=0x00007010, value=0x11a93b47
  [   12.480000] ieee80211 phy1: rt2x00usb_regbusy_read: Error - Indirect register access failed: offset=0x00007010, value=0x11a93b47

Signed-off-by: Gabor Juhos <juhosg@openwrt.org>

SVN-Revision: 37698

package/kernel/mac80211/patches/619-rt2x00-change-led-polarity-from-OF.patch

@@ -8,27 +8,33 @@
  
  #include "rt2x00.h"
  #include "rt2800lib.h"
-@@ -5966,6 +5967,13 @@ static int rt2800_init_eeprom(struct rt2
+@@ -5966,6 +5967,17 @@ static int rt2800_init_eeprom(struct rt2
  	rt2800_init_led(rt2x00dev, &rt2x00dev->led_assoc, LED_TYPE_ASSOC);
  	rt2800_init_led(rt2x00dev, &rt2x00dev->led_qual, LED_TYPE_QUALITY);
  
-+	/* Allow overriding polarity from OF */
-+	struct device_node *np = rt2x00dev->dev->of_node;
-+	unsigned int led_polarity;
++	{
++		struct device_node *np = rt2x00dev->dev->of_node;
++		unsigned int led_polarity;
 +
-+	if (!of_property_read_u32(np, "ralink,led-polarity", &led_polarity))
-+		rt2x00_set_field16(&eeprom, EEPROM_FREQ_LED_POLARITY, led_polarity);
++		/* Allow overriding polarity from OF */
++		if (!of_property_read_u32(np, "ralink,led-polarity",
++					  &led_polarity))
++			rt2x00_set_field16(&eeprom, EEPROM_FREQ_LED_POLARITY,
++					   led_polarity);
++	}
 +
  	rt2x00dev->led_mcu_reg = eeprom;
  #endif /* CPTCFG_RT2X00_LIB_LEDS */
  
 --- a/drivers/net/wireless/rt2x00/rt2x00leds.c
 +++ b/drivers/net/wireless/rt2x00/rt2x00leds.c
-@@ -110,6 +110,7 @@ static int rt2x00leds_register_led(struc
- 
+@@ -111,6 +111,9 @@ static int rt2x00leds_register_led(struc
  	led->led_dev.name = name;
  	led->led_dev.brightness = LED_OFF;
-+	led->led_dev.brightness_set(&led->led_dev, LED_OFF);
  
++	if (rt2x00_is_soc(rt2x00dev))
++		led->led_dev.brightness_set(&led->led_dev, LED_OFF);
++
  	retval = led_classdev_register(device, &led->led_dev);
  	if (retval) {
+ 		rt2x00_err(rt2x00dev, "Failed to register led handler\n");