ath10k: convert ath10k_pci_wake() to return

[cascardo/linux.git] / drivers / net / wireless / ath / ath10k / pci.c

diff --git a/drivers/net/wireless/ath/ath10k/pci.c b/drivers/net/wireless/ath/ath10k/pci.c
index 418de1e..29ccd04 100644 (file)
--- a/drivers/net/wireless/ath/ath10k/pci.c
+++ b/drivers/net/wireless/ath/ath10k/pci.c
@@ -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);
@@ -2323,18 +2324,13 @@ static int ath10k_pci_reset_target(struct ath10k *ar)
 
 static void ath10k_pci_device_reset(struct ath10k *ar)
 {
-       struct ath10k_pci *ar_pci = ath10k_pci_priv(ar);
-       void __iomem *mem = ar_pci->mem;
        int i;
        u32 val;
 
        if (!SOC_GLOBAL_RESET_ADDRESS)
                return;
 
-       if (!mem)
-               return;
-
-       ath10k_pci_reg_write32(mem, PCIE_SOC_WAKE_ADDRESS,
+       ath10k_pci_reg_write32(ar, PCIE_SOC_WAKE_ADDRESS,
                               PCIE_SOC_WAKE_V_MASK);
        for (i = 0; i < ATH_PCI_RESET_WAIT_MAX; i++) {
                if (ath10k_pci_target_is_awake(ar))
@@ -2343,12 +2339,12 @@ static void ath10k_pci_device_reset(struct ath10k *ar)
        }
 
        /* Put Target, including PCIe, into RESET. */
-       val = ath10k_pci_reg_read32(mem, SOC_GLOBAL_RESET_ADDRESS);
+       val = ath10k_pci_reg_read32(ar, SOC_GLOBAL_RESET_ADDRESS);
        val |= 1;
-       ath10k_pci_reg_write32(mem, SOC_GLOBAL_RESET_ADDRESS, val);
+       ath10k_pci_reg_write32(ar, SOC_GLOBAL_RESET_ADDRESS, val);
 
        for (i = 0; i < ATH_PCI_RESET_WAIT_MAX; i++) {
-               if (ath10k_pci_reg_read32(mem, RTC_STATE_ADDRESS) &
+               if (ath10k_pci_reg_read32(ar, RTC_STATE_ADDRESS) &
                                          RTC_STATE_COLD_RESET_MASK)
                        break;
                msleep(1);
@@ -2356,16 +2352,16 @@ static void ath10k_pci_device_reset(struct ath10k *ar)
 
        /* Pull Target, including PCIe, out of RESET. */
        val &= ~1;
-       ath10k_pci_reg_write32(mem, SOC_GLOBAL_RESET_ADDRESS, val);
+       ath10k_pci_reg_write32(ar, SOC_GLOBAL_RESET_ADDRESS, val);
 
        for (i = 0; i < ATH_PCI_RESET_WAIT_MAX; i++) {
-               if (!(ath10k_pci_reg_read32(mem, RTC_STATE_ADDRESS) &
+               if (!(ath10k_pci_reg_read32(ar, RTC_STATE_ADDRESS) &
                                            RTC_STATE_COLD_RESET_MASK))
                        break;
                msleep(1);
        }
 
-       ath10k_pci_reg_write32(mem, PCIE_SOC_WAKE_ADDRESS, PCIE_SOC_WAKE_RESET);
+       ath10k_pci_reg_write32(ar, PCIE_SOC_WAKE_ADDRESS, PCIE_SOC_WAKE_RESET);
 }
 
 static void ath10k_pci_dump_features(struct ath10k_pci *ar_pci)