From: Sujith <Sujith.Manoharan@atheros.com>
Date: Fri, 23 Apr 2010 04:58:11 +0000 (+0530)
Subject: ath9k_htc: Use multiple register writes
X-Git-Url: http://drtracing.org/?a=commitdiff_plain;h=d5e347bf0f5e99f540aaaaca25ef4e957d59a506;p=deliverable%2Flinux.git

ath9k_htc: Use multiple register writes

This patch fixes a code segment in configpciepowersave()
to make use of multiple register writes.

Signed-off-by: Sujith <Sujith.Manoharan@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---

diff --git a/drivers/net/wireless/ath/ath9k/ar9002_hw.c b/drivers/net/wireless/ath/ath9k/ar9002_hw.c
index adb33b34a56d..a8a8cdc04afa 100644
--- a/drivers/net/wireless/ath/ath9k/ar9002_hw.c
+++ b/drivers/net/wireless/ath/ath9k/ar9002_hw.c
@@ -408,6 +408,8 @@ static void ar9002_hw_configpcipowersave(struct ath_hw *ah,
 			REG_WRITE(ah, AR_PCIE_SERDES2, 0x00000000);
 
 		} else {
+			ENABLE_REGWRITE_BUFFER(ah);
+
 			REG_WRITE(ah, AR_PCIE_SERDES, 0x9248fc00);
 			REG_WRITE(ah, AR_PCIE_SERDES, 0x24924924);
 
@@ -428,6 +430,9 @@ static void ar9002_hw_configpcipowersave(struct ath_hw *ah,
 
 			/* Load the new settings */
 			REG_WRITE(ah, AR_PCIE_SERDES2, 0x00000000);
+
+			REGWRITE_BUFFER_FLUSH(ah);
+			DISABLE_REGWRITE_BUFFER(ah);
 		}
 
 		udelay(1000);