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[PATCH 3/4] ath9k: Fix RTC reset delay

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From: Sujith Manoharan <c_manoha@xxxxxxxxxxxxxxxx>

The delay that is required after issuing a RTC reset
varies for each chip. Handle this properly.

Signed-off-by: Sujith Manoharan <c_manoha@xxxxxxxxxxxxxxxx>
---
 drivers/net/wireless/ath/ath9k/hw.c | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/drivers/net/wireless/ath/ath9k/hw.c b/drivers/net/wireless/ath/ath9k/hw.c
index f58868c..2a511c6 100644
--- a/drivers/net/wireless/ath/ath9k/hw.c
+++ b/drivers/net/wireless/ath/ath9k/hw.c
@@ -1363,7 +1363,12 @@ static bool ath9k_hw_set_reset(struct ath_hw *ah, int type)
 
 	REGWRITE_BUFFER_FLUSH(ah);
 
-	udelay(50);
+	if (AR_SREV_9300_20_OR_LATER(ah))
+		udelay(50);
+	else if (AR_SREV_9100(ah))
+		udelay(10000);
+	else
+		udelay(100);
 
 	REG_WRITE(ah, AR_RTC_RC, 0);
 	if (!ath9k_hw_wait(ah, AR_RTC_RC, AR_RTC_RC_M, 0, AH_WAIT_TIMEOUT)) {
-- 
1.8.5.1

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