ath10k: increase pci wakeup timeout to 30 ms

It is noticed that pci wakeup time is exceeding current timeout (10ms)
randomly which is tested on QCA988x. So, the wake up time is increased
to 30 ms and added debug prints to log total timeout.

Signed-off-by: Maharaja Kennadyrajan <c_mkenna@qti.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>

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

@@ -452,8 +452,12 @@ static int ath10k_pci_wake_wait(struct ath10k *ar)
 	int curr_delay = 5;
 
 	while (tot_delay < PCIE_WAKE_TIMEOUT) {
-		if (ath10k_pci_is_awake(ar))
+		if (ath10k_pci_is_awake(ar)) {
+			if (tot_delay > PCIE_WAKE_LATE_US)
+				ath10k_warn(ar, "device wakeup took %d ms which is unusally long, otherwise it works normally.\n",
+					    tot_delay / 1000);
 			return 0;
+		}
 
 		udelay(curr_delay);
 		tot_delay += curr_delay;

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

@@ -230,7 +230,8 @@ static inline struct ath10k_pci *ath10k_pci_priv(struct ath10k *ar)
 
 #define ATH10K_PCI_RX_POST_RETRY_MS 50
 #define ATH_PCI_RESET_WAIT_MAX 10 /* ms */
-#define PCIE_WAKE_TIMEOUT 10000	/* 10ms */
+#define PCIE_WAKE_TIMEOUT 30000	/* 30ms */
+#define PCIE_WAKE_LATE_US 10000	/* 10ms */
 
 #define BAR_NUM 0