Resend to be applied to the linux tree.

PCI PM suspend callback took down the interface and resume brought
it back up. In the mac80211 context this is done in subsequent calls.
Rework implementation so that suspend only stores config, and sets
PCI power state. The resume return to full power state (D0), restores
the config, and brings hardware back up. Full bringup is done by
subsequent mac80211 calls.

Reviewed-by: Brett Rudley <[email protected]>
Signed-off-by: Arend van Spriel <[email protected]>
---
 drivers/staging/brcm80211/sys/wl_mac80211.c |   45 ++++++++++++++-------------
 1 files changed, 23 insertions(+), 22 deletions(-)

diff --git a/drivers/staging/brcm80211/sys/wl_mac80211.c 
b/drivers/staging/brcm80211/sys/wl_mac80211.c
index bdd629d..626a992 100644
--- a/drivers/staging/brcm80211/sys/wl_mac80211.c
+++ b/drivers/staging/brcm80211/sys/wl_mac80211.c
@@ -209,11 +209,8 @@ static void wl_ops_stop(struct ieee80211_hw *hw)
        struct wl_info *wl = hw->priv;
        ASSERT(wl);
        WL_LOCK(wl);
-       wl_down(wl);
        ieee80211_stop_queues(hw);
        WL_UNLOCK(wl);
-
-       return;
 }
 
 static int
@@ -246,7 +243,14 @@ wl_ops_add_interface(struct ieee80211_hw *hw, struct 
ieee80211_vif *vif)
 static void
 wl_ops_remove_interface(struct ieee80211_hw *hw, struct ieee80211_vif *vif)
 {
-       return;
+       struct wl_info *wl;
+
+       wl = HW_TO_WL(hw);
+       
+       /* put driver in down state */
+       WL_LOCK(wl);
+       wl_down(wl);
+       WL_UNLOCK(wl);
 }
 
 static int
@@ -779,7 +783,7 @@ static struct wl_info *wl_attach(u16 vendor, u16 device, 
unsigned long regs,
        wl_found++;
        return wl;
 
- fail:
+fail:
        wl_free(wl);
 fail1:
        return NULL;
@@ -1090,7 +1094,6 @@ wl_pci_probe(struct pci_dev *pdev, const struct 
pci_device_id *ent)
        return 0;
 }
 
-#ifdef LINUXSTA_PS
 static int wl_suspend(struct pci_dev *pdev, pm_message_t state)
 {
        struct wl_info *wl;
@@ -1105,11 +1108,12 @@ static int wl_suspend(struct pci_dev *pdev, 
pm_message_t state)
                return -ENODEV;
        }
 
+       /* only need to flag hw is down for proper resume */
        WL_LOCK(wl);
-       wl_down(wl);
        wl->pub->hw_up = false;
        WL_UNLOCK(wl);
-       pci_save_state(pdev, wl->pci_psstate);
+
+       pci_save_state(pdev);
        pci_disable_device(pdev);
        return pci_set_power_state(pdev, PCI_D3hot);
 }
@@ -1133,7 +1137,7 @@ static int wl_resume(struct pci_dev *pdev)
        if (err)
                return err;
 
-       pci_restore_state(pdev, wl->pci_psstate);
+       pci_restore_state(pdev);
 
        err = pci_enable_device(pdev);
        if (err)
@@ -1145,13 +1149,12 @@ static int wl_resume(struct pci_dev *pdev)
        if ((val & 0x0000ff00) != 0)
                pci_write_config_dword(pdev, 0x40, val & 0xffff00ff);
 
-       WL_LOCK(wl);
-       err = wl_up(wl);
-       WL_UNLOCK(wl);
-
+       /*
+       *  done. driver will be put in up state
+       *  in wl_ops_add_interface() call.
+       */
        return err;
 }
-#endif                         /* LINUXSTA_PS */
 
 static void wl_remove(struct pci_dev *pdev)
 {
@@ -1184,14 +1187,12 @@ static void wl_remove(struct pci_dev *pdev)
 }
 
 static struct pci_driver wl_pci_driver = {
- .name  = "brcm80211",
- .probe = wl_pci_probe,
-#ifdef LINUXSTA_PS
- .suspend = wl_suspend,
- .resume  = wl_resume,
-#endif                         /* LINUXSTA_PS */
- .remove   = __devexit_p(wl_remove),
- .id_table = wl_id_table,
+       .name = "brcm80211",
+       .probe = wl_pci_probe,
+       .suspend = wl_suspend,
+       .resume = wl_resume,
+       .remove = __devexit_p(wl_remove),
+       .id_table = wl_id_table,
 };
 
 /**
-- 
1.7.1


_______________________________________________
devel mailing list
[email protected]
http://driverdev.linuxdriverproject.org/mailman/listinfo/devel

Reply via email to