Starting with commit 66fceb69b72ff7e9cd8da2ca70033982d5376e0e
"libertas: Added callback functions to support SDIO suspend/resume."
libertas uses new functions from the in kernel sdio framework for
suspend and resume that are not backported.

--- a/drivers/net/wireless/ath/ath6kl/sdio.c
+++ b/drivers/net/wireless/ath/ath6kl/sdio.c
@@ -807,6 +807,7 @@ out:
 	return ret;
 }
 
+#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,34))
 static int ath6kl_set_sdio_pm_caps(struct ath6kl *ar)
 {
 	struct ath6kl_sdio *ar_sdio = ath6kl_sdio_priv(ar);
@@ -956,6 +957,17 @@ static int ath6kl_sdio_resume(struct ath
 
 	return 0;
 }
+#else
+static int ath6kl_sdio_suspend(struct ath6kl *ar, struct cfg80211_wowlan *wow)
+{
+	return 0;
+}
+
+static int ath6kl_sdio_resume(struct ath6kl *ar)
+{
+	return 0;
+}
+#endif /* (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,34)) */
 
 /* set the window address register (using 4-byte register access ). */
 static int ath6kl_set_addrwin_reg(struct ath6kl *ar, u32 reg_addr, u32 addr)
@@ -1267,7 +1279,7 @@ static const struct ath6kl_hif_ops ath6k
 	.stop = ath6kl_sdio_stop,
 };
 
-#ifdef CONFIG_PM_SLEEP
+#if defined(CONFIG_PM_SLEEP) && (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,34))
 
 /*
  * Empty handlers so that mmc subsystem doesn't remove us entirely during
@@ -1417,7 +1429,9 @@ static struct sdio_driver ath6kl_sdio_dr
 	.id_table = ath6kl_sdio_devices,
 	.probe = ath6kl_sdio_probe,
 	.remove = ath6kl_sdio_remove,
+#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,34))
 	.drv.pm = ATH6KL_SDIO_PM_OPS,
+#endif
 };
 
 static int __init ath6kl_sdio_init(void)
--- a/drivers/net/wireless/libertas/if_sdio.c
+++ b/drivers/net/wireless/libertas/if_sdio.c
@@ -1319,6 +1319,7 @@ static void if_sdio_remove(struct sdio_f
 	lbs_deb_leave(LBS_DEB_SDIO);
 }
 
+#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,34))
 static int if_sdio_suspend(struct device *dev)
 {
 	struct sdio_func *func = dev_to_sdio_func(dev);
@@ -1372,15 +1373,18 @@ static const struct dev_pm_ops if_sdio_p
 	.suspend	= if_sdio_suspend,
 	.resume		= if_sdio_resume,
 };
+#endif /* (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,34)) */
 
 static struct sdio_driver if_sdio_driver = {
 	.name		= "libertas_sdio",
 	.id_table	= if_sdio_ids,
 	.probe		= if_sdio_probe,
 	.remove		= if_sdio_remove,
+#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,34))
 	.drv = {
 		.pm = &if_sdio_pm_ops,
 	},
+#endif /* (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,34)) */
 };
 
 /*******************************************************************/
--- a/drivers/net/wireless/mwifiex/sdio.c
+++ b/drivers/net/wireless/mwifiex/sdio.c
@@ -129,8 +129,10 @@ mwifiex_sdio_remove(struct sdio_func *fu
 	wait_for_completion(&adapter->fw_load);
 
 	if (user_rmmod) {
+#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,34))
 		if (adapter->is_suspended)
 			mwifiex_sdio_resume(adapter->dev);
+#endif /* (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,34)) */
 
 		for (i = 0; i < adapter->priv_num; i++)
 			if ((GET_BSS_ROLE(adapter->priv[i]) ==
@@ -147,6 +149,7 @@ mwifiex_sdio_remove(struct sdio_func *fu
 	kfree(card);
 }
 
+#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,34))
 /*
  * SDIO suspend.
  *
@@ -254,6 +257,7 @@ static int mwifiex_sdio_resume(struct de
 
 	return 0;
 }
+#endif /* (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,34)) */
 
 /* Device ID for SD8786 */
 #define SDIO_DEVICE_ID_MARVELL_8786   (0x9116)
@@ -272,10 +276,12 @@ static const struct sdio_device_id mwifi
 
 MODULE_DEVICE_TABLE(sdio, mwifiex_ids);
 
+#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,34))
 static const struct dev_pm_ops mwifiex_sdio_pm_ops = {
 	.suspend = mwifiex_sdio_suspend,
 	.resume = mwifiex_sdio_resume,
 };
+#endif /* (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,34)) */
 
 static struct sdio_driver mwifiex_sdio = {
 	.name = "mwifiex_sdio",
@@ -284,7 +290,9 @@ static struct sdio_driver mwifiex_sdio =
 	.remove = mwifiex_sdio_remove,
 	.drv = {
 		.owner = THIS_MODULE,
+#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,34))
 		.pm = &mwifiex_sdio_pm_ops,
+#endif /* (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,34)) */
 	}
 };
 
--- a/drivers/net/wireless/brcm80211/brcmfmac/bcmsdh_sdmmc.c
+++ b/drivers/net/wireless/brcm80211/brcmfmac/bcmsdh_sdmmc.c
@@ -69,7 +69,7 @@ static bool
 brcmf_pm_resume_error(struct brcmf_sdio_dev *sdiodev)
 {
 	bool is_err = false;
-#ifdef CONFIG_PM_SLEEP
+#if defined(CONFIG_PM_SLEEP) && (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,34))
 	is_err = atomic_read(&sdiodev->suspend);
 #endif
 	return is_err;
@@ -78,7 +78,7 @@ brcmf_pm_resume_error(struct brcmf_sdio_
 static void
 brcmf_pm_resume_wait(struct brcmf_sdio_dev *sdiodev, wait_queue_head_t *wq)
 {
-#ifdef CONFIG_PM_SLEEP
+#if defined(CONFIG_PM_SLEEP) && (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,34))
 	int retry = 0;
 	while (atomic_read(&sdiodev->suspend) && retry++ != 30)
 		wait_event_timeout(*wq, false, HZ/100);
@@ -563,7 +563,7 @@ static void brcmf_ops_sdio_remove(struct
 	}
 }
 
-#ifdef CONFIG_PM_SLEEP
+#if defined(CONFIG_PM_SLEEP) && (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,34))
 static int brcmf_sdio_suspend(struct device *dev)
 {
 	mmc_pm_flag_t sdio_flags;
@@ -613,7 +613,7 @@ static struct sdio_driver brcmf_sdmmc_dr
 	.remove = brcmf_ops_sdio_remove,
 	.name = "brcmfmac",
 	.id_table = brcmf_sdmmc_ids,
-#ifdef CONFIG_PM_SLEEP
+#if defined(CONFIG_PM_SLEEP) && (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,34))
 	.drv = {
 		.pm = &brcmf_sdio_pm_ops,
 	},
--- a/drivers/bluetooth/btmrvl_sdio.c
+++ b/drivers/bluetooth/btmrvl_sdio.c
@@ -1048,6 +1048,7 @@ static void btmrvl_sdio_remove(struct sd
 	}
 }
 
+#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,34))
 static int btmrvl_sdio_suspend(struct device *dev)
 {
 	struct sdio_func *func = dev_to_sdio_func(dev);
@@ -1143,6 +1144,7 @@ static const struct dev_pm_ops btmrvl_sd
 	.suspend	= btmrvl_sdio_suspend,
 	.resume		= btmrvl_sdio_resume,
 };
+#endif
 
 static struct sdio_driver bt_mrvl_sdio = {
 	.name		= "btmrvl_sdio",
@@ -1151,7 +1153,9 @@ static struct sdio_driver bt_mrvl_sdio =
 	.remove		= btmrvl_sdio_remove,
 	.drv = {
 		.owner = THIS_MODULE,
+#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,34))
 		.pm = &btmrvl_sdio_pm_ops,
+#endif
 	}
 };