ath10k: configure and enable the wakeup capability

ACPI will rely on device driver to tell it if the device could support
wakeup function when system in D3 state.

This has caused some platform can't support remote wakeup correctly,
because the ACPI wakeup GPE is not enabled, hence registers the .set_wakeup
callback to handle it if device supports wakeup.

Tested with QCA6174 hw3.0, firmware ('WLAN.RM.4.4.1-00008-QCARMSWP-1')

Signed-off-by: Ryan Hsu <ryanhsu@qti.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>

drivers/net/wireless/ath/ath10k/mac.c

@@ -7644,6 +7644,7 @@ static const struct ieee80211_ops ath10k_ops = {
 #ifdef CONFIG_PM
 	.suspend			= ath10k_wow_op_suspend,
 	.resume				= ath10k_wow_op_resume,
+	.set_wakeup			= ath10k_wow_op_set_wakeup,
 #endif
 #ifdef CONFIG_MAC80211_DEBUGFS
 	.sta_add_debugfs		= ath10k_sta_add_debugfs,

drivers/net/wireless/ath/ath10k/wow.c

@@ -277,6 +277,18 @@ exit:
 	return ret ? 1 : 0;
 }
 
+void ath10k_wow_op_set_wakeup(struct ieee80211_hw *hw, bool enabled)
+{
+	struct ath10k *ar = hw->priv;
+
+	mutex_lock(&ar->conf_mutex);
+	if (test_bit(ATH10K_FW_FEATURE_WOWLAN_SUPPORT,
+		     ar->running_fw->fw_file.fw_features)) {
+		device_set_wakeup_enable(ar->dev, enabled);
+	}
+	mutex_unlock(&ar->conf_mutex);
+}
+
 int ath10k_wow_op_resume(struct ieee80211_hw *hw)
 {
 	struct ath10k *ar = hw->priv;
@@ -336,5 +348,7 @@ int ath10k_wow_init(struct ath10k *ar)
 	ar->wow.wowlan_support.n_patterns = ar->wow.max_num_patterns;
 	ar->hw->wiphy->wowlan = &ar->wow.wowlan_support;
 
+	device_set_wakeup_capable(ar->dev, true);
+
 	return 0;
 }

drivers/net/wireless/ath/ath10k/wow.h

@@ -28,6 +28,7 @@ int ath10k_wow_init(struct ath10k *ar);
 int ath10k_wow_op_suspend(struct ieee80211_hw *hw,
 			  struct cfg80211_wowlan *wowlan);
 int ath10k_wow_op_resume(struct ieee80211_hw *hw);
+void ath10k_wow_op_set_wakeup(struct ieee80211_hw *hw, bool enabled);
 
 #else