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authorArnd Bergmann <arnd@arndb.de>2012-07-25 21:41:33 +0200
committerArnd Bergmann <arnd@arndb.de>2012-07-25 21:41:33 +0200
commit43cb4a02d27ad9525ad23984d4fd06972810439f (patch)
treec705d059616356054d18c6cd50e7c9f5b16a5747 /drivers/net/wireless/ath/ath9k/hw.c
parent9abf29edbb14a34f86c9e09970adada9f10ccbcf (diff)
parent759af179c72005e61a4dd6dcf909320a134bfeee (diff)
Merge branch 'board-specific' of git://github.com/hzhuang1/linux into late/boardboards2
From Haojian Zhuang <haojian.zhuang@gmail.com>: * 'board-specific' of git://github.com/hzhuang1/linux: ARM: pxa: hx4700: Use DEFINE_RES_* macros consistently ARM: pxa: remove eseries.h It seems I missed this in the original pull requests for v3.6, adding it now. Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Diffstat (limited to 'drivers/net/wireless/ath/ath9k/hw.c')
-rw-r--r--drivers/net/wireless/ath/ath9k/hw.c14
1 files changed, 13 insertions, 1 deletions
diff --git a/drivers/net/wireless/ath/ath9k/hw.c b/drivers/net/wireless/ath/ath9k/hw.c
index 7db1890448f2..1c68e564f503 100644
--- a/drivers/net/wireless/ath/ath9k/hw.c
+++ b/drivers/net/wireless/ath/ath9k/hw.c
@@ -784,13 +784,25 @@ 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);