ath9k: Store subsystem id in struct hw_version

This subsystem id will be used later to turn on the btcoex
support.
Signed-off-by: Vasanthakumar Thiagarajan <vasanth@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

drivers/net/wireless/ath/ath9k/ahb.c

@@ -119,7 +119,7 @@ static int ath_ahb_probe(struct platform_device *pdev)
 	sc->bus_ops = &ath_ahb_bus_ops;
 	sc->irq = irq;
 
-	ret = ath_init_device(AR5416_AR9100_DEVID, sc);
+	ret = ath_init_device(AR5416_AR9100_DEVID, sc, 0x0);
 	if (ret) {
 		dev_err(&pdev->dev, "failed to initialize device\n");
 		goto err_free_hw;

drivers/net/wireless/ath/ath9k/ath9k.h

@@ -658,7 +658,7 @@ extern struct ieee80211_ops ath9k_ops;
 
 irqreturn_t ath_isr(int irq, void *dev);
 void ath_cleanup(struct ath_softc *sc);
-int ath_init_device(u16 devid, struct ath_softc *sc);
+int ath_init_device(u16 devid, struct ath_softc *sc, u16 subsysid);
 void ath_detach(struct ath_softc *sc);
 const char *ath_mac_bb_name(u32 mac_bb_version);
 const char *ath_rf_name(u16 rf_version);

drivers/net/wireless/ath/ath9k/hw.h

@@ -390,6 +390,7 @@ struct ath9k_hw_version {
 	u16 phyRev;
 	u16 analog5GhzRev;
 	u16 analog2GhzRev;
+	u16 subsysid;
 };
 
 /* Generic TSF timer definitions */

drivers/net/wireless/ath/ath9k/main.c

@@ -1310,7 +1310,7 @@ static int ath9k_reg_notifier(struct wiphy *wiphy,
  * to allow the separation between hardware specific
  * variables (now in ath_hw) and driver specific variables.
  */
-static int ath_init_softc(u16 devid, struct ath_softc *sc)
+static int ath_init_softc(u16 devid, struct ath_softc *sc, u16 subsysid)
 {
 	struct ath_hw *ah = NULL;
 	int r = 0, i;
@@ -1348,6 +1348,7 @@ static int ath_init_softc(u16 devid, struct ath_softc *sc)
 
 	ah->ah_sc = sc;
 	ah->hw_version.devid = devid;
+	ah->hw_version.subsysid = subsysid;
 	sc->sc_ah = ah;
 
 	r = ath9k_hw_init(ah);
@@ -1577,7 +1578,7 @@ void ath_set_hw_capab(struct ath_softc *sc, struct ieee80211_hw *hw)
 }
 
 /* Device driver core initialization */
-int ath_init_device(u16 devid, struct ath_softc *sc)
+int ath_init_device(u16 devid, struct ath_softc *sc, u16 subsysid)
 {
 	struct ieee80211_hw *hw = sc->hw;
 	int error = 0, i;
@@ -1585,7 +1586,7 @@ int ath_init_device(u16 devid, struct ath_softc *sc)
 
 	DPRINTF(sc, ATH_DBG_CONFIG, "Attach ATH hw\n");
 
-	error = ath_init_softc(devid, sc);
+	error = ath_init_softc(devid, sc, subsysid);
 	if (error != 0)
 		return error;
 

drivers/net/wireless/ath/ath9k/pci.c

@@ -88,6 +88,7 @@ static int ath_pci_probe(struct pci_dev *pdev, const struct pci_device_id *id)
 	struct ath_softc *sc;
 	struct ieee80211_hw *hw;
 	u8 csz;
+	u16 subsysid;
 	u32 val;
 	int ret = 0;
 	struct ath_hw *ah;
@@ -178,7 +179,8 @@ static int ath_pci_probe(struct pci_dev *pdev, const struct pci_device_id *id)
 	sc->mem = mem;
 	sc->bus_ops = &ath_pci_bus_ops;
 
-	ret = ath_init_device(id->device, sc);
+	pci_read_config_word(pdev, PCI_SUBSYSTEM_ID, &subsysid);
+	ret = ath_init_device(id->device, sc, subsysid);
 	if (ret) {
 		dev_err(&pdev->dev, "failed to initialize device\n");
 		goto bad3;