ath6kl: Invoke WOW suspend/resume calls during PM operation

Link ath6kl's wow suspend/resume functions with the actual suspend/resume path.

WOW mode is selected when the host sdio controller supports both
MMC_PM_KEEP_POWER and MMC_PM_WAKE_SDIO_IRQ capabilities.

kvalo: also adds a missing break in ath6kl_cfg80211_resume(), luckily
it didn't have any effect on functionality.

Signed-off-by: Raja Mani <rmani@qca.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>

1 files changed, 20 insertions, 0 deletions

diff --git a/drivers/net/wireless/ath/ath6kl/sdio.c b/drivers/net/wireless/ath/ath6kl/sdio.c
index b576b7667b6d..0586b3b3ab54 100644
--- a/drivers/net/wireless/ath/ath6kl/sdio.c
+++ b/drivers/net/wireless/ath/ath6kl/sdio.c
@@ -798,6 +798,23 @@ static int ath6kl_sdio_suspend(struct ath6kl *ar, struct cfg80211_wowlan *wow)
                 return ret;
         }
 
+        if ((flags & MMC_PM_WAKE_SDIO_IRQ) && wow) {
+                /*
+                 * The host sdio controller is capable of keep power and
+                 * sdio irq wake up at this point. It's fine to continue
+                 * wow suspend operation.
+                 */
+                ret = ath6kl_cfg80211_suspend(ar, ATH6KL_CFG_SUSPEND_WOW, wow);
+                if (ret)
+                        return ret;
+
+                ret = sdio_set_host_pm_flags(func, MMC_PM_WAKE_SDIO_IRQ);
+                if (ret)
+                        ath6kl_err("set sdio wake irq flag failed: %d\n", ret);
+
+                return ret;
+        }
+
         return ath6kl_cfg80211_suspend(ar, ATH6KL_CFG_SUSPEND_DEEPSLEEP, NULL);
 }
 
@@ -820,6 +837,9 @@ static int ath6kl_sdio_resume(struct ath6kl *ar)
 
         case ATH6KL_STATE_DEEPSLEEP:
                 break;
+
+        case ATH6KL_STATE_WOW:
+                break;
         }
 
         ath6kl_cfg80211_resume(ar);