Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless

[firefly-linux-kernel-4.4.55.git] / drivers / net / wireless / ath / ath9k / hw.c

diff --git a/drivers/net/wireless/ath/ath9k/hw.c b/drivers/net/wireless/ath/ath9k/hw.c
index 784baee5db8456f506059a37769483b369b95e78..ebfb2a3c645c51c1732af8d169e948fef32e71cc 100644 (file)
--- a/drivers/net/wireless/ath/ath9k/hw.c
+++ b/drivers/net/wireless/ath/ath9k/hw.c
@@ -614,7 +614,7 @@ static int __ath9k_hw_init(struct ath_hw *ah)
 
        if (NR_CPUS > 1 && ah->config.serialize_regmode == SER_REG_MODE_AUTO) {
                if (ah->hw_version.macVersion == AR_SREV_VERSION_5416_PCI ||
-                   ((AR_SREV_9160(ah) || AR_SREV_9280(ah)) &&
+                   ((AR_SREV_9160(ah) || AR_SREV_9280(ah) || AR_SREV_9287(ah)) &&
                     !ah->is_pciexpress)) {
                        ah->config.serialize_regmode =
                                SER_REG_MODE_ON;
@@ -773,13 +773,25 @@ static void ath9k_hw_init_qos(struct ath_hw *ah)
 
 u32 ar9003_get_pll_sqsum_dvc(struct ath_hw *ah)
 {
+       struct ath_common *common = ath9k_hw_common(ah);
+       int i = 0;
+
        REG_CLR_BIT(ah, PLL3, PLL3_DO_MEAS_MASK);
        udelay(100);
        REG_SET_BIT(ah, PLL3, PLL3_DO_MEAS_MASK);
 
-       while ((REG_READ(ah, PLL4) & PLL4_MEAS_DONE) == 0)
+       while ((REG_READ(ah, PLL4) & PLL4_MEAS_DONE) == 0) {
+
                udelay(100);
 
+               if (WARN_ON_ONCE(i >= 100)) {
+                       ath_err(common, "PLL4 meaurement not done\n");
+                       break;
+               }
+
+               i++;
+       }
+
        return (REG_READ(ah, PLL3) & SQSUM_DVC_MASK) >> 3;
 }
 EXPORT_SYMBOL(ar9003_get_pll_sqsum_dvc);