From 39b91b8144e028cbe383548f76c1f8cdb7977532 Mon Sep 17 00:00:00 2001 From: Maharaja Kennadyrajan Date: Tue, 6 Oct 2015 15:19:28 +0300 Subject: [PATCH] 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 Signed-off-by: Kalle Valo --- drivers/net/wireless/ath/ath10k/pci.c | 6 +++++- drivers/net/wireless/ath/ath10k/pci.h | 3 ++- 2 files changed, 7 insertions(+), 2 deletions(-) diff --git a/drivers/net/wireless/ath/ath10k/pci.c b/drivers/net/wireless/ath/ath10k/pci.c index 61df93e2e1c9..7af39118b1f4 100644 --- a/drivers/net/wireless/ath/ath10k/pci.c +++ b/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; diff --git a/drivers/net/wireless/ath/ath10k/pci.h b/drivers/net/wireless/ath/ath10k/pci.h index 8d364fb8f743..54af2d7fbe7b 100644 --- a/drivers/net/wireless/ath/ath10k/pci.h +++ b/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