ath5k: support LEDs on Acer Aspire One netbook

Add vendor ID for Foxconn and use it to set the ath5k LED gpio and
polarity for Acer branded laptops.

base.c:
Changes-licensed-under: 3-Clause-BSD

Reported-by: Maxim Levitsky <maximlevitsky@gmail.com>
Tested-by: Maxim Levitsky <maximlevitsky@gmail.com>
Tested-by: Andreas Mohr <andi@lisas.de>
Signed-off-by: Bob Copeland <me@bobcopeland.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

2 files changed, 9 insertions, 0 deletions

diff --git a/drivers/net/wireless/ath5k/base.c b/drivers/net/wireless/ath5k/base.c
index 88618645a7e4..fdf7733e76e1 100644
--- a/drivers/net/wireless/ath5k/base.c
+++ b/drivers/net/wireless/ath5k/base.c
@@ -2596,6 +2596,13 @@ ath5k_init_leds(struct ath5k_softc *sc)
                 sc->led_pin = 1;
                 sc->led_on = 1;  /* active high */
         }
+        /* Pin 3 on Foxconn chips used in Acer Aspire One (0x105b:e008) */
+        if (pdev->subsystem_vendor == PCI_VENDOR_ID_FOXCONN) {
+                __set_bit(ATH_STAT_LEDSOFT, sc->status);
+                sc->led_pin = 3;
+                sc->led_on = 0;  /* active low */
+        }
+
         if (!test_bit(ATH_STAT_LEDSOFT, sc->status))
                 goto out;
 
diff --git a/include/linux/pci_ids.h b/include/linux/pci_ids.h
index 302423afa136..5b7a48c1d616 100644
--- a/include/linux/pci_ids.h
+++ b/include/linux/pci_ids.h
@@ -834,6 +834,8 @@
 #define PCI_DEVICE_ID_PROMISE_20276     0x5275
 #define PCI_DEVICE_ID_PROMISE_20277     0x7275
 
+#define PCI_VENDOR_ID_FOXCONN           0x105b
+
 #define PCI_VENDOR_ID_UMC               0x1060
 #define PCI_DEVICE_ID_UMC_UM8673F       0x0101
 #define PCI_DEVICE_ID_UMC_UM8886BF      0x673a