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From: Kalle Valo <kalle.valo@iki.fi>
To: linville@tuxdriver.com
Cc: linux-wireless@vger.kernel.org
Subject: [PATCH v2 05/11] wl1251: simplify ELP wakeup time calculation
Date: Mon, 30 Nov 2009 10:18:06 +0200	[thread overview]
Message-ID: <20091130081806.17360.54969.stgit@tikku> (raw)
In-Reply-To: <20091130081706.17360.48084.stgit@tikku>

From: Kalle Valo <kalle.valo@nokia.com>

The wakeup time calculation was too complicated, simplify it.

Signed-off-by: Kalle Valo <kalle.valo@nokia.com>
---
 drivers/net/wireless/wl12xx/wl1251_ps.c |    6 +++---
 1 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/net/wireless/wl12xx/wl1251_ps.c b/drivers/net/wireless/wl12xx/wl1251_ps.c
index 54a2720..851dfb6 100644
--- a/drivers/net/wireless/wl12xx/wl1251_ps.c
+++ b/drivers/net/wireless/wl12xx/wl1251_ps.c
@@ -68,7 +68,7 @@ void wl1251_ps_elp_sleep(struct wl1251 *wl)
 
 int wl1251_ps_elp_wakeup(struct wl1251 *wl)
 {
-	unsigned long timeout;
+	unsigned long timeout, start;
 	u32 elp_reg;
 
 	if (!wl->elp)
@@ -76,6 +76,7 @@ int wl1251_ps_elp_wakeup(struct wl1251 *wl)
 
 	wl1251_debug(DEBUG_PSM, "waking up chip from elp");
 
+	start = jiffies;
 	timeout = jiffies + msecs_to_jiffies(WL1251_WAKEUP_TIMEOUT);
 
 	wl1251_write32(wl, HW_ACCESS_ELP_CTRL_REG_ADDR, ELPCTRL_WAKE_UP);
@@ -96,8 +97,7 @@ int wl1251_ps_elp_wakeup(struct wl1251 *wl)
 	}
 
 	wl1251_debug(DEBUG_PSM, "wakeup time: %u ms",
-		     jiffies_to_msecs(jiffies) -
-		     (jiffies_to_msecs(timeout) - WL1251_WAKEUP_TIMEOUT));
+		     jiffies_to_msecs(jiffies - start));
 
 	wl->elp = false;
 


  parent reply	other threads:[~2009-11-30  8:18 UTC|newest]

Thread overview: 12+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2009-11-30  8:17 [PATCH v2 00/11] wl1251 WMM support and minor fixes Kalle Valo
2009-11-30  8:17 ` [PATCH v2 01/11] wl1251: add tx queue status to debugfs Kalle Valo
2009-11-30  8:17 ` [PATCH v2 02/11] wl1251: print a debug message when tx_queue is full Kalle Valo
2009-11-30  8:17 ` [PATCH v2 03/11] wl1251: fix error handling in wl1251_op_config() Kalle Valo
2009-11-30  8:17 ` [PATCH v2 04/11] wl1251: reduce ELP wakeup timeout Kalle Valo
2009-11-30  8:18 ` Kalle Valo [this message]
2009-11-30  8:18 ` [PATCH v2 06/11] wl1251: use __dev_alloc_skb() on RX Kalle Valo
2009-11-30  8:18 ` [PATCH v2 07/11] wl1251: implement acx_ac_cfg to configure hardware queues Kalle Valo
2009-11-30  8:18 ` [PATCH v2 08/11] wl1251: implement wl1251_acx_tid_cfg() Kalle Valo
2009-11-30  8:18 ` [PATCH v2 09/11] wl1251: implement WMM Kalle Valo
2009-11-30  8:18 ` [PATCH v2 10/11] wl1251: update tx_hdr when aliging skb in tx Kalle Valo
2009-11-30  8:18 ` [PATCH v2 11/11] wl1251: enable WMM Kalle Valo

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