Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-next into for-davem

67 files changed, 3271 insertions, 1375 deletions

diff --git a/drivers/bcma/core.c b/drivers/bcma/core.c
index 63c8b470536..03bbe104338 100644
--- a/drivers/bcma/core.c
+++ b/drivers/bcma/core.c
@@ -65,7 +65,7 @@ void bcma_core_set_clockmode(struct bcma_device *core,
 	switch (clkmode) {
 	case BCMA_CLKMODE_FAST:
 		bcma_set32(core, BCMA_CLKCTLST, BCMA_CLKCTLST_FORCEHT);
-		udelay(64);
+		usleep_range(64, 300);
 		for (i = 0; i < 1500; i++) {
 			if (bcma_read32(core, BCMA_CLKCTLST) &
 			    BCMA_CLKCTLST_HAVEHT) {
diff --git a/drivers/bcma/driver_chipcommon_pmu.c b/drivers/bcma/driver_chipcommon_pmu.c
index 8b8f2f3862a..201faf106b3 100644
--- a/drivers/bcma/driver_chipcommon_pmu.c
+++ b/drivers/bcma/driver_chipcommon_pmu.c
@@ -76,7 +76,10 @@ static void bcma_pmu_resources_init(struct bcma_drv_cc *cc)
 	if (max_msk)
 		bcma_cc_write32(cc, BCMA_CC_PMU_MAXRES_MSK, max_msk);
 
-	/* Add some delay; allow resources to come up and settle. */
+	/*
+	 * Add some delay; allow resources to come up and settle.
+	 * Delay is required for SoC (early init).
+	 */
 	mdelay(2);
 }
 
diff --git a/drivers/bcma/driver_pci.c b/drivers/bcma/driver_pci.c
index c32ebd537ab..c39ee6d4585 100644
--- a/drivers/bcma/driver_pci.c
+++ b/drivers/bcma/driver_pci.c
@@ -51,7 +51,7 @@ static void bcma_pcie_mdio_set_phy(struct bcma_drv_pci *pc, u8 phy)
 		v = pcicore_read32(pc, BCMA_CORE_PCI_MDIO_CONTROL);
 		if (v & BCMA_CORE_PCI_MDIOCTL_ACCESS_DONE)
 			break;
-		msleep(1);
+		usleep_range(1000, 2000);
 	}
 }
 
@@ -92,7 +92,7 @@ static u16 bcma_pcie_mdio_read(struct bcma_drv_pci *pc, u8 device, u8 address)
 			ret = pcicore_read32(pc, BCMA_CORE_PCI_MDIO_DATA);
 			break;
 		}
-		msleep(1);
+		usleep_range(1000, 2000);
 	}
 	pcicore_write32(pc, BCMA_CORE_PCI_MDIO_CONTROL, 0);
 	return ret;
@@ -132,7 +132,7 @@ static void bcma_pcie_mdio_write(struct bcma_drv_pci *pc, u8 device,
 		v = pcicore_read32(pc, BCMA_CORE_PCI_MDIO_CONTROL);
 		if (v & BCMA_CORE_PCI_MDIOCTL_ACCESS_DONE)
 			break;
-		msleep(1);
+		usleep_range(1000, 2000);
 	}
 	pcicore_write32(pc, BCMA_CORE_PCI_MDIO_CONTROL, 0);
 }
diff --git a/drivers/bcma/driver_pci_host.c b/drivers/bcma/driver_pci_host.c
index cbae2c23133..9baf886e82d 100644
--- a/drivers/bcma/driver_pci_host.c
+++ b/drivers/bcma/driver_pci_host.c
@@ -425,9 +425,9 @@ void __devinit bcma_core_pci_hostmode_init(struct bcma_drv_pci *pc)
 	pc_host->io_resource.flags = IORESOURCE_IO | IORESOURCE_PCI_FIXED;
 
 	/* Reset RC */
-	udelay(3000);
+	usleep_range(3000, 5000);
 	pcicore_write32(pc, BCMA_CORE_PCI_CTL, BCMA_CORE_PCI_CTL_RST_OE);
-	udelay(1000);
+	usleep_range(1000, 2000);
 	pcicore_write32(pc, BCMA_CORE_PCI_CTL, BCMA_CORE_PCI_CTL_RST |
 			BCMA_CORE_PCI_CTL_RST_OE);
 
@@ -481,7 +481,7 @@ void __devinit bcma_core_pci_hostmode_init(struct bcma_drv_pci *pc)
 	 * before issuing configuration requests to PCI Express
 	 * devices.
 	 */
-	udelay(100000);
+	msleep(100);
 
 	bcma_core_pci_enable_crs(pc);
 
@@ -501,7 +501,7 @@ void __devinit bcma_core_pci_hostmode_init(struct bcma_drv_pci *pc)
 	set_io_port_base(pc_host->pci_controller.io_map_base);
 	/* Give some time to the PCI controller to configure itself with the new
 	 * values. Not waiting at this point causes crashes of the machine. */
-	mdelay(10);
+	usleep_range(10000, 15000);
 	register_pci_controller(&pc_host->pci_controller);
 	return;
 }
diff --git a/drivers/net/wireless/ath/ath9k/ar9003_mac.c b/drivers/net/wireless/ath/ath9k/ar9003_mac.c
index d5b2e0ecc21..301bf72c53b 100644
--- a/drivers/net/wireless/ath/ath9k/ar9003_mac.c
+++ b/drivers/net/wireless/ath/ath9k/ar9003_mac.c
@@ -182,6 +182,7 @@ static bool ar9003_hw_get_isr(struct ath_hw *ah, enum ath9k_int *masked)
 	struct ath9k_hw_capabilities *pCap = &ah->caps;
 	struct ath_common *common = ath9k_hw_common(ah);
 	u32 sync_cause = 0, async_cause, async_mask = AR_INTR_MAC_IRQ;
+	bool fatal_int;
 
 	if (ath9k_hw_mci_is_enabled(ah))
 		async_mask |= AR_INTR_ASYNC_MASK_MCI;
@@ -310,6 +311,22 @@ static bool ar9003_hw_get_isr(struct ath_hw *ah, enum ath9k_int *masked)
 
 	if (sync_cause) {
 		ath9k_debug_sync_cause(common, sync_cause);
+		fatal_int =
+			(sync_cause &
+			 (AR_INTR_SYNC_HOST1_FATAL | AR_INTR_SYNC_HOST1_PERR))
+			? true : false;
+
+		if (fatal_int) {
+			if (sync_cause & AR_INTR_SYNC_HOST1_FATAL) {
+				ath_dbg(common, ANY,
+					"received PCI FATAL interrupt\n");
+			}
+			if (sync_cause & AR_INTR_SYNC_HOST1_PERR) {
+				ath_dbg(common, ANY,
+					"received PCI PERR interrupt\n");
+			}
+			*masked |= ATH9K_INT_FATAL;
+		}
 
 		if (sync_cause & AR_INTR_SYNC_RADM_CPL_TIMEOUT) {
 			REG_WRITE(ah, AR_RC, AR_RC_HOSTIF);
diff --git a/drivers/net/wireless/ath/ath9k/ar9003_mci.c b/drivers/net/wireless/ath/ath9k/ar9003_mci.c
index 8dbb60b53f1..44c202ce6c6 100644
--- a/drivers/net/wireless/ath/ath9k/ar9003_mci.c
+++ b/drivers/net/wireless/ath/ath9k/ar9003_mci.c
@@ -813,8 +813,8 @@ static void ar9003_mci_osla_setup(struct ath_hw *ah, bool enable)
 		      AR_BTCOEX_CTRL_ONE_STEP_LOOK_AHEAD_EN, 1);
 }
 
-void ar9003_mci_reset(struct ath_hw *ah, bool en_int, bool is_2g,
-		      bool is_full_sleep)
+int ar9003_mci_reset(struct ath_hw *ah, bool en_int, bool is_2g,
+		     bool is_full_sleep)
 {
 	struct ath_common *common = ath9k_hw_common(ah);
 	struct ath9k_hw_mci *mci = &ah->btcoex_hw.mci;
@@ -824,14 +824,13 @@ void ar9003_mci_reset(struct ath_hw *ah, bool en_int, bool is_2g,
 		is_full_sleep, is_2g);
 
 	if (!mci->gpm_addr && !mci->sched_addr) {
-		ath_dbg(common, MCI,
-			"MCI GPM and schedule buffers are not allocated\n");
-		return;
+		ath_err(common, "MCI GPM and schedule buffers are not allocated\n");
+		return -ENOMEM;
 	}
 
 	if (REG_READ(ah, AR_BTCOEX_CTRL) == 0xdeadbeef) {
-		ath_dbg(common, MCI, "BTCOEX control register is dead\n");
-		return;
+		ath_err(common, "BTCOEX control register is dead\n");
+		return -EINVAL;
 	}
 
 	/* Program MCI DMA related registers */
@@ -913,6 +912,8 @@ void ar9003_mci_reset(struct ath_hw *ah, bool en_int, bool is_2g,
 
 	if (en_int)
 		ar9003_mci_enable_interrupt(ah);
+
+	return 0;
 }
 
 void ar9003_mci_stop_bt(struct ath_hw *ah, bool save_fullsleep)
@@ -1144,8 +1145,8 @@ void ar9003_mci_init_cal_done(struct ath_hw *ah)
 	ar9003_mci_send_message(ah, MCI_GPM, 0, pld, 16, true, false);
 }
 
-void ar9003_mci_setup(struct ath_hw *ah, u32 gpm_addr, void *gpm_buf,
-		      u16 len, u32 sched_addr)
+int ar9003_mci_setup(struct ath_hw *ah, u32 gpm_addr, void *gpm_buf,
+		     u16 len, u32 sched_addr)
 {
 	struct ath9k_hw_mci *mci = &ah->btcoex_hw.mci;
 
@@ -1154,7 +1155,7 @@ void ar9003_mci_setup(struct ath_hw *ah, u32 gpm_addr, void *gpm_buf,
 	mci->gpm_len = len;
 	mci->sched_addr = sched_addr;
 
-	ar9003_mci_reset(ah, true, true, true);
+	return ar9003_mci_reset(ah, true, true, true);
 }
 EXPORT_SYMBOL(ar9003_mci_setup);
 
diff --git a/drivers/net/wireless/ath/ath9k/ar9003_mci.h b/drivers/net/wireless/ath/ath9k/ar9003_mci.h
index 30acf2869aa..2a2d0188961 100644
--- a/drivers/net/wireless/ath/ath9k/ar9003_mci.h
+++ b/drivers/net/wireless/ath/ath9k/ar9003_mci.h
@@ -249,8 +249,8 @@ bool ar9003_mci_send_message(struct ath_hw *ah, u8 header, u32 flag,
 			     u32 *payload, u8 len, bool wait_done,
 			     bool check_bt);
 u32 ar9003_mci_state(struct ath_hw *ah, u32 state_type);
-void ar9003_mci_setup(struct ath_hw *ah, u32 gpm_addr, void *gpm_buf,
-		      u16 len, u32 sched_addr);
+int ar9003_mci_setup(struct ath_hw *ah, u32 gpm_addr, void *gpm_buf,
+		     u16 len, u32 sched_addr);
 void ar9003_mci_cleanup(struct ath_hw *ah);
 void ar9003_mci_get_interrupt(struct ath_hw *ah, u32 *raw_intr,
 			      u32 *rx_msg_intr);
@@ -272,8 +272,8 @@ void ar9003_mci_check_bt(struct ath_hw *ah);
 bool ar9003_mci_start_reset(struct ath_hw *ah, struct ath9k_channel *chan);
 int ar9003_mci_end_reset(struct ath_hw *ah, struct ath9k_channel *chan,
 			 struct ath9k_hw_cal_data *caldata);
-void ar9003_mci_reset(struct ath_hw *ah, bool en_int, bool is_2g,
-		      bool is_full_sleep);
+int ar9003_mci_reset(struct ath_hw *ah, bool en_int, bool is_2g,
+		     bool is_full_sleep);
 void ar9003_mci_get_isr(struct ath_hw *ah, enum ath9k_int *masked);
 void ar9003_mci_bt_gain_ctrl(struct ath_hw *ah);
 void ar9003_mci_set_power_awake(struct ath_hw *ah);
diff --git a/drivers/net/wireless/ath/ath9k/ar9003_phy.c b/drivers/net/wireless/ath/ath9k/ar9003_phy.c
index fc67844a143..759f5f5a715 100644
--- a/drivers/net/wireless/ath/ath9k/ar9003_phy.c
+++ b/drivers/net/wireless/ath/ath9k/ar9003_phy.c
@@ -1360,7 +1360,7 @@ static void ar9003_hw_antctrl_shared_chain_lnadiv(struct ath_hw *ah,
 	if (enable) {
 		REG_SET_BIT(ah, AR_PHY_MC_GAIN_CTRL,
 			    (1 << AR_PHY_ANT_SW_RX_PROT_S));
-		if (IS_CHAN_2GHZ(ah->curchan))
+		if (ah->curchan && IS_CHAN_2GHZ(ah->curchan))
 			REG_SET_BIT(ah, AR_PHY_RESTART,
 				    AR_PHY_RESTART_ENABLE_DIV_M2FLAG);
 		REG_SET_BIT(ah, AR_BTCOEX_WL_LNADIV,
diff --git a/drivers/net/wireless/ath/ath9k/ath9k.h b/drivers/net/wireless/ath/ath9k/ath9k.h
index 8e27f4fb21f..dfe6a4707fd 100644
--- a/drivers/net/wireless/ath/ath9k/ath9k.h
+++ b/drivers/net/wireless/ath/ath9k/ath9k.h
@@ -173,6 +173,8 @@ void ath_descdma_cleanup(struct ath_softc *sc, struct ath_descdma *dd,
 
 #define ATH_AN_2_TID(_an, _tidno)  (&(_an)->tid[(_tidno)])
 
+#define IS_CCK_RATE(rate) ((rate >= 0x18) && (rate <= 0x1e))
+
 #define ATH_TX_COMPLETE_POLL_INT	1000
 
 enum ATH_AGGR_STATUS {
diff --git a/drivers/net/wireless/ath/ath9k/btcoex.c b/drivers/net/wireless/ath/ath9k/btcoex.c
index acd437384fe..419e9a3f2fe 100644
--- a/drivers/net/wireless/ath/ath9k/btcoex.c
+++ b/drivers/net/wireless/ath/ath9k/btcoex.c
@@ -43,8 +43,8 @@ static const u32 ar9003_wlan_weights[ATH_BTCOEX_STOMP_MAX]
 	{ 0x00000000, 0x00000000, 0x00000000, 0x00000000 }, /* STOMP_NONE */
 };
 
-static const u32 ar9462_wlan_weights[ATH_BTCOEX_STOMP_MAX]
-				    [AR9300_NUM_WLAN_WEIGHTS] = {
+static const u32 mci_wlan_weights[ATH_BTCOEX_STOMP_MAX]
+				 [AR9300_NUM_WLAN_WEIGHTS] = {
 	{ 0x01017d01, 0x41414101, 0x41414101, 0x41414141 }, /* STOMP_ALL */
 	{ 0x01017d01, 0x3b3b3b01, 0x3b3b3b01, 0x3b3b3b3b }, /* STOMP_LOW */
 	{ 0x01017d01, 0x01010101, 0x01010101, 0x01010101 }, /* STOMP_NONE */
@@ -208,14 +208,37 @@ static void ath9k_hw_btcoex_enable_2wire(struct ath_hw *ah)
 			    AR_GPIO_OUTPUT_MUX_AS_TX_FRAME);
 }
 
+/*
+ * For AR9002, bt_weight/wlan_weight are used.
+ * For AR9003 and above, stomp_type is used.
+ */
 void ath9k_hw_btcoex_set_weight(struct ath_hw *ah,
 				u32 bt_weight,
-				u32 wlan_weight)
+				u32 wlan_weight,
+				enum ath_stomp_type stomp_type)
 {
 	struct ath_btcoex_hw *btcoex_hw = &ah->btcoex_hw;
 
-	btcoex_hw->bt_coex_weights = SM(bt_weight, AR_BTCOEX_BT_WGHT) |
-				     SM(wlan_weight, AR_BTCOEX_WL_WGHT);
+	if (AR_SREV_9300_20_OR_LATER(ah)) {
+		const u32 *weight = ar9003_wlan_weights[stomp_type];
+		int i;
+
+		if (AR_SREV_9462(ah) || AR_SREV_9565(ah)) {
+			if ((stomp_type == ATH_BTCOEX_STOMP_LOW) &&
+			    btcoex_hw->mci.stomp_ftp)
+				stomp_type = ATH_BTCOEX_STOMP_LOW_FTP;
+			weight = mci_wlan_weights[stomp_type];
+		}
+
+		for (i = 0; i < AR9300_NUM_WLAN_WEIGHTS; i++) {
+			btcoex_hw->bt_weight[i] = AR9300_BT_WGHT;
+			btcoex_hw->wlan_weight[i] = weight[i];
+		}
+	} else {
+		btcoex_hw->bt_coex_weights =
+			SM(bt_weight, AR_BTCOEX_BT_WGHT) |
+			SM(wlan_weight, AR_BTCOEX_WL_WGHT);
+	}
 }
 EXPORT_SYMBOL(ath9k_hw_btcoex_set_weight);
 
@@ -282,7 +305,7 @@ void ath9k_hw_btcoex_enable(struct ath_hw *ah)
 		ath9k_hw_btcoex_enable_2wire(ah);
 		break;
 	case ATH_BTCOEX_CFG_3WIRE:
-		if (AR_SREV_9462(ah)) {
+		if (AR_SREV_9462(ah) || AR_SREV_9565(ah)) {
 			ath9k_hw_btcoex_enable_mci(ah);
 			return;
 		}
@@ -304,7 +327,7 @@ void ath9k_hw_btcoex_disable(struct ath_hw *ah)
 	int i;
 
 	btcoex_hw->enabled = false;
-	if (AR_SREV_9462(ah)) {
+	if (AR_SREV_9462(ah) || AR_SREV_9565(ah)) {
 		ath9k_hw_btcoex_bt_stomp(ah, ATH_BTCOEX_STOMP_NONE);
 		for (i = 0; i < AR9300_NUM_BT_WEIGHTS; i++)
 			REG_WRITE(ah, AR_MCI_COEX_WL_WEIGHTS(i),
@@ -332,26 +355,6 @@ void ath9k_hw_btcoex_disable(struct ath_hw *ah)
 }
 EXPORT_SYMBOL(ath9k_hw_btcoex_disable);
 
-static void ar9003_btcoex_bt_stomp(struct ath_hw *ah,
-			 enum ath_stomp_type stomp_type)
-{
-	struct ath_btcoex_hw *btcoex = &ah->btcoex_hw;
-	const u32 *weight = ar9003_wlan_weights[stomp_type];
-	int i;
-
-	if (AR_SREV_9462(ah)) {
-		if ((stomp_type == ATH_BTCOEX_STOMP_LOW) &&
-		    btcoex->mci.stomp_ftp)
-			stomp_type = ATH_BTCOEX_STOMP_LOW_FTP;
-		weight = ar9462_wlan_weights[stomp_type];
-	}
-
-	for (i = 0; i < AR9300_NUM_WLAN_WEIGHTS; i++) {
-		btcoex->bt_weight[i] = AR9300_BT_WGHT;
-		btcoex->wlan_weight[i] = weight[i];
-	}
-}
-
 /*
  * Configures appropriate weight based on stomp type.
  */
@@ -359,22 +362,22 @@ void ath9k_hw_btcoex_bt_stomp(struct ath_hw *ah,
 			      enum ath_stomp_type stomp_type)
 {
 	if (AR_SREV_9300_20_OR_LATER(ah)) {
-		ar9003_btcoex_bt_stomp(ah, stomp_type);
+		ath9k_hw_btcoex_set_weight(ah, 0, 0, stomp_type);
 		return;
 	}
 
 	switch (stomp_type) {
 	case ATH_BTCOEX_STOMP_ALL:
 		ath9k_hw_btcoex_set_weight(ah, AR_BT_COEX_WGHT,
-				AR_STOMP_ALL_WLAN_WGHT);
+					   AR_STOMP_ALL_WLAN_WGHT, 0);
 		break;
 	case ATH_BTCOEX_STOMP_LOW:
 		ath9k_hw_btcoex_set_weight(ah, AR_BT_COEX_WGHT,
-				AR_STOMP_LOW_WLAN_WGHT);
+					   AR_STOMP_LOW_WLAN_WGHT, 0);
 		break;
 	case ATH_BTCOEX_STOMP_NONE:
 		ath9k_hw_btcoex_set_weight(ah, AR_BT_COEX_WGHT,
-				AR_STOMP_NONE_WLAN_WGHT);
+					   AR_STOMP_NONE_WLAN_WGHT, 0);
 		break;
 	default:
 		ath_dbg(ath9k_hw_common(ah), BTCOEX, "Invalid Stomptype\n");
diff --git a/drivers/net/wireless/ath/ath9k/btcoex.h b/drivers/net/wireless/ath/ath9k/btcoex.h
index 20092f98658..385197ad79b 100644
--- a/drivers/net/wireless/ath/ath9k/btcoex.h
+++ b/drivers/net/wireless/ath/ath9k/btcoex.h
@@ -107,7 +107,8 @@ void ath9k_hw_btcoex_init_mci(struct ath_hw *ah);
 void ath9k_hw_init_btcoex_hw(struct ath_hw *ah, int qnum);
 void ath9k_hw_btcoex_set_weight(struct ath_hw *ah,
 				u32 bt_weight,
-				u32 wlan_weight);
+				u32 wlan_weight,
+				enum ath_stomp_type stomp_type);
 void ath9k_hw_btcoex_disable(struct ath_hw *ah);
 void ath9k_hw_btcoex_bt_stomp(struct ath_hw *ah,
 			      enum ath_stomp_type stomp_type);
diff --git a/drivers/net/wireless/ath/ath9k/debug.c b/drivers/net/wireless/ath/ath9k/debug.c
index e1041a6b457..6727b566d29 100644
--- a/drivers/net/wireless/ath/ath9k/debug.c
+++ b/drivers/net/wireless/ath/ath9k/debug.c
@@ -222,6 +222,57 @@ static const struct file_operations fops_disable_ani = {
 	.llseek = default_llseek,
 };
 
+static ssize_t read_file_ant_diversity(struct file *file, char __user *user_buf,
+				       size_t count, loff_t *ppos)
+{
+	struct ath_softc *sc = file->private_data;
+	struct ath_common *common = ath9k_hw_common(sc->sc_ah);
+	char buf[32];
+	unsigned int len;
+
+	len = sprintf(buf, "%d\n", common->antenna_diversity);
+	return simple_read_from_buffer(user_buf, count, ppos, buf, len);
+}
+
+static ssize_t write_file_ant_diversity(struct file *file,
+					const char __user *user_buf,
+					size_t count, loff_t *ppos)
+{
+	struct ath_softc *sc = file->private_data;
+	struct ath_common *common = ath9k_hw_common(sc->sc_ah);
+	unsigned long antenna_diversity;
+	char buf[32];
+	ssize_t len;
+
+	len = min(count, sizeof(buf) - 1);
+	if (copy_from_user(buf, user_buf, len))
+		return -EFAULT;
+
+	if (!AR_SREV_9565(sc->sc_ah))
+		goto exit;
+
+	buf[len] = '\0';
+	if (strict_strtoul(buf, 0, &antenna_diversity))
+		return -EINVAL;
+
+	common->antenna_diversity = !!antenna_diversity;
+	ath9k_ps_wakeup(sc);
+	ath_ant_comb_update(sc);
+	ath_dbg(common, CONFIG, "Antenna diversity: %d\n",
+		common->antenna_diversity);
+	ath9k_ps_restore(sc);
+exit:
+	return count;
+}
+
+static const struct file_operations fops_ant_diversity = {
+	.read = read_file_ant_diversity,
+	.write = write_file_ant_diversity,
+	.open = simple_open,
+	.owner = THIS_MODULE,
+	.llseek = default_llseek,
+};
+
 static ssize_t read_file_dma(struct file *file, char __user *user_buf,
 			     size_t count, loff_t *ppos)
 {
@@ -1601,12 +1652,12 @@ int ath9k_init_debug(struct ath_hw *ah)
 	debugfs_create_file("samples", S_IRUSR, sc->debug.debugfs_phy, sc,
 			    &fops_samps);
 #endif
-
 	debugfs_create_u32("gpio_mask", S_IRUSR | S_IWUSR,
 			   sc->debug.debugfs_phy, &sc->sc_ah->gpio_mask);
-
 	debugfs_create_u32("gpio_val", S_IRUSR | S_IWUSR,
 			   sc->debug.debugfs_phy, &sc->sc_ah->gpio_val);
+	debugfs_create_file("diversity", S_IRUSR | S_IWUSR,
+			    sc->debug.debugfs_phy, sc, &fops_ant_diversity);
 
 	return 0;