b43: Split PHY alloc and init

This splits the PHY allocation from the PHY init.
This is needed in order to properly support Analog handling.

Signed-off-by: Michael Buesch <mb@bu3sch.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

1 files changed, 22 insertions, 14 deletions

diff --git a/drivers/net/wireless/b43/main.c b/drivers/net/wireless/b43/main.c
index fda9492d5884..156e8f3151d5 100644
--- a/drivers/net/wireless/b43/main.c
+++ b/drivers/net/wireless/b43/main.c
@@ -1091,8 +1091,12 @@ void b43_wireless_core_reset(struct b43_wldev *dev, u32 flags)
         ssb_read32(dev->dev, SSB_TMSLOW);       /* flush */
         msleep(1);
 
-        /* Turn Analog ON */
-        b43_switch_analog(dev, 1);
+        /* Turn Analog ON, but only if we already know the PHY-type.
+         * This protects against very early setup where we don't know the
+         * PHY-type, yet. wireless_core_reset will be called once again later,
+         * when we know the PHY-type. */
+        if (dev->phy.ops)
+                b43_switch_analog(dev, 1);
 
         macctl = b43_read32(dev, B43_MMIO_MACCTL);
         macctl &= ~B43_MACCTL_GMODE;
@@ -2694,6 +2698,7 @@ static void b43_mgmtframe_txantenna(struct b43_wldev *dev, int antenna)
 /* This is the opposite of b43_chip_init() */
 static void b43_chip_exit(struct b43_wldev *dev)
 {
+        b43_phy_exit(dev);
         b43_gpio_cleanup(dev);
         /* firmware is released later */
 }
@@ -3952,7 +3957,6 @@ static void b43_wireless_core_exit(struct b43_wldev *dev)
                 dev_kfree_skb_any(dev->wl->current_beacon);
                 dev->wl->current_beacon = NULL;
         }
-        b43_phy_exit(dev);
 
         ssb_device_disable(dev->dev, 0);
         ssb_bus_may_powerdown(dev->dev->bus);
@@ -3979,24 +3983,23 @@ static int b43_wireless_core_init(struct b43_wldev *dev)
                 b43_wireless_core_reset(dev, tmp);
         }
 
+        /* Reset all data structures. */
         setup_struct_wldev_for_init(dev);
-        err = b43_phy_operations_setup(dev);
-        if (err)
-                goto err_busdown;
+        phy->ops->prepare_structs(dev);
 
         /* Enable IRQ routing to this device. */
         ssb_pcicore_dev_irqvecs_enable(&bus->pcicore, dev->dev);
 
         b43_imcfglo_timeouts_workaround(dev);
         b43_bluetooth_coext_disable(dev);
-        if (phy->ops->prepare) {
-                err = phy->ops->prepare(dev);
+        if (phy->ops->prepare_hardware) {
+                err = phy->ops->prepare_hardware(dev);
                 if (err)
-                        goto err_phy_exit;
+                        goto err_busdown;
         }
         err = b43_chip_init(dev);
         if (err)
-                goto err_phy_exit;
+                goto err_busdown;
         b43_shm_write16(dev, B43_SHM_SHARED,
                         B43_SHM_SH_WLCOREREV, dev->dev->id.revision);
         hf = b43_hf_read(dev);
@@ -4064,8 +4067,6 @@ out:
 
 err_chip_exit:
         b43_chip_exit(dev);
-err_phy_exit:
-        b43_phy_exit(dev);
 err_busdown:
         ssb_bus_may_powerdown(bus);
         B43_WARN_ON(b43_status(dev) != B43_STAT_UNINIT);
@@ -4342,6 +4343,7 @@ static void b43_wireless_core_detach(struct b43_wldev *dev)
         /* We release firmware that late to not be required to re-request
          * is all the time when we reinit the core. */
         b43_release_firmware(dev);
+        b43_phy_free(dev);
 }
 
 static int b43_wireless_core_attach(struct b43_wldev *dev)
@@ -4415,16 +4417,20 @@ static int b43_wireless_core_attach(struct b43_wldev *dev)
                 }
         }
 
+        err = b43_phy_allocate(dev);
+        if (err)
+                goto err_powerdown;
+
         dev->phy.gmode = have_2ghz_phy;
         tmp = dev->phy.gmode ? B43_TMSLOW_GMODE : 0;
         b43_wireless_core_reset(dev, tmp);
 
         err = b43_validate_chipaccess(dev);
         if (err)
-                goto err_powerdown;
+                goto err_phy_free;
         err = b43_setup_bands(dev, have_2ghz_phy, have_5ghz_phy);
         if (err)
-                goto err_powerdown;
+                goto err_phy_free;
 
         /* Now set some default "current_dev" */
         if (!wl->current_dev)
@@ -4438,6 +4444,8 @@ static int b43_wireless_core_attach(struct b43_wldev *dev)
 out:
         return err;
 
+err_phy_free:
+        b43_phy_free(dev);
 err_powerdown:
         ssb_bus_may_powerdown(bus);
         return err;