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ab8500_fg: Round capacity output 

Round the capacity values for better enduser experience.

Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: pender01 <peter.enderborg@stericsson.com>
Reviewed-by: Jonas ABERG <jonas.aberg@stericsson.com>
Tested-by: Marcus COOPER <marcus.xm.cooper@stericsson.com>
Signed-off-by: Anton Vorontsov <anton@enomsg.org>
This commit is contained in:
pender01 2013-01-11 13:12:59 +00:00 committed by Anton Vorontsov
parent 74a8e349b1
commit 6eaf8740da
1 changed files with 15 additions and 13 deletions
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28
drivers/power/ab8500_fg.c
View File

@ -32,6 +32,7 @@
#include <linux/mfd/abx500/ab8500.h> #include <linux/mfd/abx500/ab8500.h>
#include <linux/mfd/abx500/ab8500-bm.h> #include <linux/mfd/abx500/ab8500-bm.h>
#include <linux/mfd/abx500/ab8500-gpadc.h> #include <linux/mfd/abx500/ab8500-gpadc.h>
#include <linux/kernel.h>
#define MILLI_TO_MICRO 1000 #define MILLI_TO_MICRO 1000
#define FG_LSB_IN_MA 1627 #define FG_LSB_IN_MA 1627
@ -1158,7 +1159,7 @@ static int ab8500_fg_capacity_level(struct ab8500_fg *di)
{ {
int ret, percent; int ret, percent;
percent = di->bat_cap.permille / 10; percent = DIV_ROUND_CLOSEST(di->bat_cap.permille, 10);
if (percent <= di->bm->cap_levels->critical || if (percent <= di->bm->cap_levels->critical ||
di->flags.low_bat) di->flags.low_bat)
@ -1279,6 +1280,7 @@ static void ab8500_fg_update_cap_scalers(struct ab8500_fg *di)
static void ab8500_fg_check_capacity_limits(struct ab8500_fg *di, bool init) static void ab8500_fg_check_capacity_limits(struct ab8500_fg *di, bool init)
{ {
bool changed = false; bool changed = false;
int percent = DIV_ROUND_CLOSEST(di->bat_cap.permille, 10);
di->bat_cap.level = ab8500_fg_capacity_level(di); di->bat_cap.level = ab8500_fg_capacity_level(di);
@ -1310,6 +1312,7 @@ static void ab8500_fg_check_capacity_limits(struct ab8500_fg *di, bool init)
dev_dbg(di->dev, "Battery low, set capacity to 0\n"); dev_dbg(di->dev, "Battery low, set capacity to 0\n");
di->bat_cap.prev_percent = 0; di->bat_cap.prev_percent = 0;
di->bat_cap.permille = 0; di->bat_cap.permille = 0;
percent = 0;
di->bat_cap.prev_mah = 0; di->bat_cap.prev_mah = 0;
di->bat_cap.mah = 0; di->bat_cap.mah = 0;
changed = true; changed = true;
@ -1319,7 +1322,7 @@ static void ab8500_fg_check_capacity_limits(struct ab8500_fg *di, bool init)
* and show 100% during maintenance charging (scaling). * and show 100% during maintenance charging (scaling).
*/ */
if (di->flags.force_full) { 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; di->bat_cap.prev_mah = di->bat_cap.mah;
changed = true; changed = true;
@ -1332,19 +1335,18 @@ static void ab8500_fg_check_capacity_limits(struct ab8500_fg *di, bool init)
di->bat_cap.prev_percent; di->bat_cap.prev_percent;
di->bat_cap.cap_scale.disable_cap_level = 100; di->bat_cap.cap_scale.disable_cap_level = 100;
} }
} else if ( di->bat_cap.prev_percent != } else if (di->bat_cap.prev_percent != percent) {
(di->bat_cap.permille) / 10) {
dev_dbg(di->dev, dev_dbg(di->dev,
"battery reported full " "battery reported full "
"but capacity dropping: %d\n", "but capacity dropping: %d\n",
di->bat_cap.permille / 10); percent);
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; di->bat_cap.prev_mah = di->bat_cap.mah;
changed = true; changed = true;
} }
} else if (di->bat_cap.prev_percent != di->bat_cap.permille / 10) { } else if (di->bat_cap.prev_percent != percent) {
if (di->bat_cap.permille / 10 == 0) { if (percent == 0) {
/* /*
* We will not report 0% unless we've got * We will not report 0% unless we've got
* the LOW_BAT IRQ, no matter what the FG * the LOW_BAT IRQ, no matter what the FG
@ -1354,11 +1356,11 @@ static void ab8500_fg_check_capacity_limits(struct ab8500_fg *di, bool init)
di->bat_cap.permille = 1; di->bat_cap.permille = 1;
di->bat_cap.prev_mah = 1; di->bat_cap.prev_mah = 1;
di->bat_cap.mah = 1; di->bat_cap.mah = 1;
percent = 1;
changed = true; changed = true;
} else if (!(!di->flags.charging && } else if (!(!di->flags.charging &&
(di->bat_cap.permille / 10) > percent > di->bat_cap.prev_percent) || init) {
di->bat_cap.prev_percent) || init) {
/* /*
* We do not allow reported capacity to go up * We do not allow reported capacity to go up
* unless we're charging or if we're in init * unless we're charging or if we're in init
@ -1366,9 +1368,9 @@ static void ab8500_fg_check_capacity_limits(struct ab8500_fg *di, bool init)
dev_dbg(di->dev, dev_dbg(di->dev,
"capacity changed from %d to %d (%d)\n", "capacity changed from %d to %d (%d)\n",
di->bat_cap.prev_percent, di->bat_cap.prev_percent,
di->bat_cap.permille / 10, percent,
di->bat_cap.permille); 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; di->bat_cap.prev_mah = di->bat_cap.mah;
changed = true; changed = true;
@ -1376,7 +1378,7 @@ static void ab8500_fg_check_capacity_limits(struct ab8500_fg *di, bool init)
dev_dbg(di->dev, "capacity not allowed to go up since " dev_dbg(di->dev, "capacity not allowed to go up since "
"no charger is connected: %d to %d (%d)\n", "no charger is connected: %d to %d (%d)\n",
di->bat_cap.prev_percent, di->bat_cap.prev_percent,
di->bat_cap.permille / 10, percent,
di->bat_cap.permille); di->bat_cap.permille);
} }
} }