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[1/2] ath9k_hw: Handle gentimer termination properly

Message ID 20558.51496.575142.581841@gargle.gargle.HOWL (mailing list archive)
State Not Applicable, archived
Headers show

Commit Message

Sujith Manoharan Sept. 11, 2012, 5:16 a.m. UTC 
Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com>
---
 drivers/net/wireless/ath/ath9k/hw.c | 10 ++++++++++
 1 file changed, 10 insertions(+)
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Patch

diff --git a/drivers/net/wireless/ath/ath9k/hw.c b/drivers/net/wireless/ath/ath9k/hw.c
index cb90321..40f57aa 100644
--- a/drivers/net/wireless/ath/ath9k/hw.c
+++ b/drivers/net/wireless/ath/ath9k/hw.c
@@ -3080,6 +3080,16 @@  void ath9k_hw_gen_timer_stop(struct ath_hw *ah, struct ath_gen_timer *timer)
 	REG_CLR_BIT(ah, gen_tmr_configuration[timer->index].mode_addr,
 			gen_tmr_configuration[timer->index].mode_mask);
 
+	if (AR_SREV_9462(ah) || AR_SREV_9565(ah)) {
+		/*
+		 * Need to switch back to TSF if it was using TSF2.
+		 */
+		if ((timer->index >= AR_GEN_TIMER_BANK_1_LEN)) {
+			REG_CLR_BIT(ah, AR_MAC_PCU_GEN_TIMER_TSF_SEL,
+				    (1 << timer->index));
+		}
+	}
+
 	/* Disable both trigger and thresh interrupt masks */
 	REG_CLR_BIT(ah, AR_IMR_S5,
 		(SM(AR_GENTMR_BIT(timer->index), AR_IMR_S5_GENTIMER_THRESH) |