linux-kernel - [PATCH 02/57] power: ab8500_bm: Don't clear the CCMuxOffset bit

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Date:	Tue, 25 Sep 2012 10:11:59 -0600
From:	mathieu.poirier@...aro.org
To:	linux-kernel@...r.kernel.org, cbou@...l.ru, dwmw2@...radead.org
Cc:	mathieu.poirier@...aro.org
Subject: [PATCH 02/57] power: ab8500_bm: Don't clear the CCMuxOffset bit

From: Kalle Komierowski <karl.komierowski@...ricsson.com>

The CCMuxOffset bit is not kept set, this will force the columb counter
of the AB8500 to use the measure offset calibration.
This should increase the accuracy of the fuel gauge.

Signed-off-by: Kalle Komierowski <karl.komierowski@...ricsson.com>
Signed-off-by: Marcus Cooper <marcus.xm.cooper@...ricsson.com>
Signed-off-by: Mathieu Poirier <mathieu.poirier@...aro.org>
Reviewed-by: Jonas ABERG <jonas.aberg@...ricsson.com>
---
 drivers/power/ab8500_fg.c |    8 ++++----
 1 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/power/ab8500_fg.c b/drivers/power/ab8500_fg.c
index bf02225..af792a8 100644
--- a/drivers/power/ab8500_fg.c
+++ b/drivers/power/ab8500_fg.c
@@ -485,8 +485,9 @@ static int ab8500_fg_coulomb_counter(struct ab8500_fg *di, bool enable)
 		di->flags.fg_enabled = true;
 	} else {
 		/* Clear any pending read requests */
-		ret = abx500_set_register_interruptible(di->dev,
-			AB8500_GAS_GAUGE, AB8500_GASG_CC_CTRL_REG, 0);
+		ret = abx500_mask_and_set_register_interruptible(di->dev,
+			AB8500_GAS_GAUGE, AB8500_GASG_CC_CTRL_REG,
+			(RESET_ACCU | READ_REQ), 0);
 		if (ret)
 			goto cc_err;
 
@@ -1404,8 +1405,7 @@ static void ab8500_fg_algorithm_discharging(struct ab8500_fg *di)
 		sleep_time = di->bat->fg_params->init_timer;
 
 		/* Discard the first [x] seconds */
-		if (di->init_cnt >
-			di->bat->fg_params->init_discard_time) {
+		if (di->init_cnt > di->bat->fg_params->init_discard_time) {
 			ab8500_fg_calc_cap_discharge_voltage(di, true);
 
 			ab8500_fg_check_capacity_limits(di, true);
-- 
1.7.5.4

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