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ath10k: convert ath10k_pci_wake() to return

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We should not try to access hw if wakeup fails so add
proper error checking for that. Also add the timeout lenght
to the warning message.

Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
This commit is contained in:
Kalle Valo
2013-09-01 10:02:07 +03:00
parent a40d3e420d
commit 3aebe54b1c
3 changed files with 45 additions and 17 deletions
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11
drivers/net/wireless/ath/ath10k/pci.c
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@@ -537,7 +537,7 @@ static void ath10k_pci_wait(struct ath10k *ar)
ath10k_warn("Unable to wakeup target\n");
}
void ath10k_do_pci_wake(struct ath10k *ar)
int ath10k_do_pci_wake(struct ath10k *ar)
{
struct ath10k_pci *ar_pci = ath10k_pci_priv(ar);
void __iomem *pci_addr = ar_pci->mem;
@@ -553,18 +553,19 @@ void ath10k_do_pci_wake(struct ath10k *ar)
atomic_inc(&ar_pci->keep_awake_count);
if (ar_pci->verified_awake)
return;
return 0;
for (;;) {
if (ath10k_pci_target_is_awake(ar)) {
ar_pci->verified_awake = true;
break;
return 0;
}
if (tot_delay > PCIE_WAKE_TIMEOUT) {
ath10k_warn("target takes too long to wake up (awake count %d)\n",
ath10k_warn("target took longer %d us to wake up (awake count %d)\n",
PCIE_WAKE_TIMEOUT,
atomic_read(&ar_pci->keep_awake_count));
break;
return -ETIMEDOUT;
}
udelay(curr_delay);