linux-kernel - [PATCH 3.4 045/134] ath9k_hw: Enable hw PLL power save for AR9462

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Message-Id: <20140410032305.854366586@linuxfoundation.org>
Date:	Wed,  9 Apr 2014 20:22:41 -0700
From:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:	linux-kernel@...r.kernel.org
Cc:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	stable@...r.kernel.org, Paul Stewart <pstew@...omium.org>,
	Rajkumar Manoharan <rmanohar@....qualcomm.com>,
	"John W. Linville" <linville@...driver.com>,
	Ben Hutchings <ben@...adent.org.uk>,
	Jianguo Wu <wujianguo@...wei.com>
Subject: [PATCH 3.4 045/134] ath9k_hw: Enable hw PLL power save for AR9462

3.4-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Rajkumar Manoharan <rmanohar@....qualcomm.com>

commit 1680260226a8fd2aab590319da83ad8e610da9bd upstream.

This reduced the power consumption to half in full and network sleep.

Cc: Paul Stewart <pstew@...omium.org>
Signed-off-by: Rajkumar Manoharan <rmanohar@....qualcomm.com>
Signed-off-by: John W. Linville <linville@...driver.com>
[bwh: Backported to 3.2:
 - INIT_INI_ARRAY macro requires an explicit size argument
 - Remove the now-redundant macro PCIE_PLL_ON_CREQ_DIS_L1_2P0]
Signed-off-by: Ben Hutchings <ben@...adent.org.uk>
Cc: Jianguo Wu <wujianguo@...wei.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>

---
 drivers/net/wireless/ath/ath9k/ar9003_hw.c |   11 ++++-------
 1 file changed, 4 insertions(+), 7 deletions(-)

--- a/drivers/net/wireless/ath/ath9k/ar9003_hw.c
+++ b/drivers/net/wireless/ath/ath9k/ar9003_hw.c
@@ -33,9 +33,6 @@
  */
 static void ar9003_hw_init_mode_regs(struct ath_hw *ah)
 {
-#define PCIE_PLL_ON_CREQ_DIS_L1_2P0 \
-		ar9462_pciephy_pll_on_clkreq_disable_L1_2p0
-
 #define AR9462_BB_CTX_COEFJ(x)	\
 		ar9462_##x##_baseband_core_txfir_coeff_japan_2484
 
@@ -312,13 +309,13 @@ static void ar9003_hw_init_mode_regs(str
 
 		/* Awake -> Sleep Setting */
 		INIT_INI_ARRAY(&ah->iniPcieSerdes,
-				PCIE_PLL_ON_CREQ_DIS_L1_2P0,
-				ARRAY_SIZE(PCIE_PLL_ON_CREQ_DIS_L1_2P0),
+				ar9462_pciephy_clkreq_disable_L1_2p0,
+				ARRAY_SIZE(ar9462_pciephy_clkreq_disable_L1_2p0),
 				2);
 		/* Sleep -> Awake Setting */
 		INIT_INI_ARRAY(&ah->iniPcieSerdesLowPower,
-				PCIE_PLL_ON_CREQ_DIS_L1_2P0,
-				ARRAY_SIZE(PCIE_PLL_ON_CREQ_DIS_L1_2P0),
+				ar9462_pciephy_clkreq_disable_L1_2p0,
+				ARRAY_SIZE(ar9462_pciephy_clkreq_disable_L1_2p0),
 				2);
 
 		/* Fast clock modal settings */


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