On AR933x, the internal regulator settings need to be applied before the
PLL init to avoid stability issues.
Signed-off-by: Felix Fietkau <nbd@xxxxxxxxxxx>
---
drivers/net/wireless/ath/ath9k/ar9003_eeprom.c | 2 +-
drivers/net/wireless/ath/ath9k/ar9003_eeprom.h | 3 +++
drivers/net/wireless/ath/ath9k/hw.c | 3 +++
3 files changed, 7 insertions(+), 1 deletions(-)
diff --git a/drivers/net/wireless/ath/ath9k/ar9003_eeprom.c b/drivers/net/wireless/ath/ath9k/ar9003_eeprom.c
index ac53d90..dfb0441 100644
--- a/drivers/net/wireless/ath/ath9k/ar9003_eeprom.c
+++ b/drivers/net/wireless/ath/ath9k/ar9003_eeprom.c
@@ -3809,7 +3809,7 @@ static bool is_pmu_set(struct ath_hw *ah, u32 pmu_reg, int pmu_set)
return true;
}
-static void ar9003_hw_internal_regulator_apply(struct ath_hw *ah)
+void ar9003_hw_internal_regulator_apply(struct ath_hw *ah)
{
int internal_regulator =
ath9k_hw_ar9300_get_eeprom(ah, EEP_INTERNAL_REGULATOR);
diff --git a/drivers/net/wireless/ath/ath9k/ar9003_eeprom.h b/drivers/net/wireless/ath/ath9k/ar9003_eeprom.h
index 2505ac4..8396d15 100644
--- a/drivers/net/wireless/ath/ath9k/ar9003_eeprom.h
+++ b/drivers/net/wireless/ath/ath9k/ar9003_eeprom.h
@@ -334,4 +334,7 @@ u8 *ar9003_get_spur_chan_ptr(struct ath_hw *ah, bool is_2ghz);
unsigned int ar9003_get_paprd_scale_factor(struct ath_hw *ah,
struct ath9k_channel *chan);
+
+void ar9003_hw_internal_regulator_apply(struct ath_hw *ah);
+
#endif
diff --git a/drivers/net/wireless/ath/ath9k/hw.c b/drivers/net/wireless/ath/ath9k/hw.c
index abe05ec..7db1890 100644
--- a/drivers/net/wireless/ath/ath9k/hw.c
+++ b/drivers/net/wireless/ath/ath9k/hw.c
@@ -1468,6 +1468,9 @@ static bool ath9k_hw_chip_reset(struct ath_hw *ah,
return false;
ah->chip_fullsleep = false;
+
+ if (AR_SREV_9330(ah))
+ ar9003_hw_internal_regulator_apply(ah);
ath9k_hw_init_pll(ah, chan);
ath9k_hw_set_rfmode(ah, chan);
--
1.7.3.2
--
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