lkml.org 
[lkml]   [2012]   [Sep]   [25]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Subject[PATCH 15/57] power: ab8500_fg: Round capacity output
Date
From: pender01 <peter.enderborg@stericsson.com>

Round the capacity values for better enduser experience.

Signed-off-by: pender01 <peter.enderborg@stericsson.com>
Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Reviewed-by: Jonas ABERG <jonas.aberg@stericsson.com>
---
drivers/power/ab8500_fg.c | 28 +++++++++++++++-------------
1 files changed, 15 insertions(+), 13 deletions(-)

diff --git a/drivers/power/ab8500_fg.c b/drivers/power/ab8500_fg.c
index 492f6bf..c4d9307 100644
--- a/drivers/power/ab8500_fg.c
+++ b/drivers/power/ab8500_fg.c
@@ -31,6 +31,7 @@
#include <linux/mfd/abx500.h>
#include <linux/time.h>
#include <linux/completion.h>
+#include <linux/kernel.h>

#define MILLI_TO_MICRO 1000
#define FG_LSB_IN_MA 1627
@@ -1160,7 +1161,7 @@ static int ab8500_fg_capacity_level(struct ab8500_fg *di)
{
int ret, percent;

- percent = di->bat_cap.permille / 10;
+ percent = DIV_ROUND_CLOSEST(di->bat_cap.permille, 10);

if (percent <= di->bat->cap_levels->critical ||
di->flags.low_bat)
@@ -1281,6 +1282,7 @@ static void ab8500_fg_update_cap_scalers(struct ab8500_fg *di)
static void ab8500_fg_check_capacity_limits(struct ab8500_fg *di, bool init)
{
bool changed = false;
+ int percent = DIV_ROUND_CLOSEST(di->bat_cap.permille, 10);

di->bat_cap.level = ab8500_fg_capacity_level(di);

@@ -1312,6 +1314,7 @@ static void ab8500_fg_check_capacity_limits(struct ab8500_fg *di, bool init)
dev_dbg(di->dev, "Battery low, set capacity to 0\n");
di->bat_cap.prev_percent = 0;
di->bat_cap.permille = 0;
+ percent = 0;
di->bat_cap.prev_mah = 0;
di->bat_cap.mah = 0;
changed = true;
@@ -1321,7 +1324,7 @@ static void ab8500_fg_check_capacity_limits(struct ab8500_fg *di, bool init)
* and show 100% during maintenance charging (scaling).
*/
if (di->flags.force_full) {
- di->bat_cap.prev_percent = di->bat_cap.permille / 10;
+ di->bat_cap.prev_percent = percent;
di->bat_cap.prev_mah = di->bat_cap.mah;

changed = true;
@@ -1334,19 +1337,18 @@ static void ab8500_fg_check_capacity_limits(struct ab8500_fg *di, bool init)
di->bat_cap.prev_percent;
di->bat_cap.cap_scale.disable_cap_level = 100;
}
- } else if (di->bat_cap.prev_percent !=
- (di->bat_cap.permille) / 10) {
+ } else if (di->bat_cap.prev_percent != percent) {
dev_dbg(di->dev,
"battery reported full "
"but capacity dropping: %d\n",
- di->bat_cap.permille / 10);
- di->bat_cap.prev_percent = di->bat_cap.permille / 10;
+ percent);
+ di->bat_cap.prev_percent = percent;
di->bat_cap.prev_mah = di->bat_cap.mah;

changed = true;
}
- } else if (di->bat_cap.prev_percent != di->bat_cap.permille / 10) {
- if (di->bat_cap.permille / 10 == 0) {
+ } else if (di->bat_cap.prev_percent != percent) {
+ if (percent == 0) {
/*
* We will not report 0% unless we've got
* the LOW_BAT IRQ, no matter what the FG
@@ -1356,11 +1358,11 @@ static void ab8500_fg_check_capacity_limits(struct ab8500_fg *di, bool init)
di->bat_cap.permille = 1;
di->bat_cap.prev_mah = 1;
di->bat_cap.mah = 1;
+ percent = 1;

changed = true;
} else if (!(!di->flags.charging &&
- (di->bat_cap.permille / 10) >
- di->bat_cap.prev_percent) || init) {
+ percent > di->bat_cap.prev_percent) || init) {
/*
* We do not allow reported capacity to go up
* unless we're charging or if we're in init
@@ -1368,9 +1370,9 @@ static void ab8500_fg_check_capacity_limits(struct ab8500_fg *di, bool init)
dev_dbg(di->dev,
"capacity changed from %d to %d (%d)\n",
di->bat_cap.prev_percent,
- di->bat_cap.permille / 10,
+ percent,
di->bat_cap.permille);
- di->bat_cap.prev_percent = di->bat_cap.permille / 10;
+ di->bat_cap.prev_percent = percent;
di->bat_cap.prev_mah = di->bat_cap.mah;

changed = true;
@@ -1378,7 +1380,7 @@ static void ab8500_fg_check_capacity_limits(struct ab8500_fg *di, bool init)
dev_dbg(di->dev, "capacity not allowed to go up since "
"no charger is connected: %d to %d (%d)\n",
di->bat_cap.prev_percent,
- di->bat_cap.permille / 10,
+ percent,
di->bat_cap.permille);
}
}
--
1.7.5.4


\
 
 \ /
  Last update: 2012-09-25 19:01    [W:2.028 / U:1.324 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site