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power: pm8921-bms: remove forcing shutdown soc

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Forcing to return shutdown soc for the first 30 seconds was added so
that we show consistent soc right after bootup.

However with the recent changes to the algorithm viz. using termination
resistance for UUC, restricting UUC changes at most 1% and limiting the
OCV corrections, this forcing is not required. The soc stays within
limits of the shutdown soc.

Remove this forcing of shutdown soc.

Change-Id: Ie74e9318cca29ab60436df6ddec286917fbd0cd7
Signed-off-by: Abhijeet Dharmapurikar <adharmap@codeaurora.org>
This commit is contained in:
Abhijeet Dharmapurikar
2012-08-16 12:56:34 -07:00
committed by Stephen Boyd
parent 5ebb4c45b4
commit cfe67ce94b
1 changed files with 0 additions and 30 deletions
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30
drivers/power/pm8921-bms.c
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@@ -135,8 +135,6 @@ struct pm8921_bms_chip {
int enable_fcc_learning;
int shutdown_soc;
int shutdown_iavg_ua;
int shutdown_soc_timer_expired;
struct delayed_work shutdown_soc_work;
struct delayed_work calculate_soc_delayed_work;
struct timespec t_soc_queried;
int shutdown_soc_valid_limit;
@@ -1902,17 +1900,6 @@ static int scale_soc_while_chg(struct pm8921_bms_chip *chip,
return scaled_soc;
}
#define SHOW_SHUTDOWN_SOC_MS 30000
static void shutdown_soc_work(struct work_struct *work)
{
struct pm8921_bms_chip *chip = container_of(work,
struct pm8921_bms_chip, shutdown_soc_work.work);
pr_debug("not forcing shutdown soc anymore\n");
/* it has been 30 seconds since init, no need to show shutdown soc */
chip->shutdown_soc_timer_expired = 1;
}
static bool is_shutdown_soc_within_limits(struct pm8921_bms_chip *chip, int soc)
{
if (shutdown_soc_invalid) {
@@ -2179,18 +2166,6 @@ static int report_state_of_charge(struct pm8921_bms_chip *chip)
if (last_soc != -EINVAL && last_soc < soc && soc != 100)
soc = scale_soc_while_chg(chip, delta_time_us, soc, last_soc);
if (chip->shutdown_soc != 0
&& !shutdown_soc_invalid
&& !chip->shutdown_soc_timer_expired) {
/*
* force shutdown soc if it is valid and the shutdown soc show
* timer has not expired
*/
soc = chip->shutdown_soc;
pr_debug("Forcing SHUTDOWN_SOC = %d\n", soc);
}
last_soc = soc;
backup_soc_and_iavg(chip, batt_temp, last_soc);
pr_debug("Reported SOC = %d\n", last_soc);
@@ -3268,11 +3243,6 @@ static int __devinit pm8921_bms_probe(struct platform_device *pdev)
pm8921_bms_get_percent_charge(),
vbatt, chip->last_ocv_uv);
INIT_DELAYED_WORK(&chip->shutdown_soc_work, shutdown_soc_work);
schedule_delayed_work(&chip->shutdown_soc_work,
round_jiffies_relative(msecs_to_jiffies
(SHOW_SHUTDOWN_SOC_MS)));
return 0;
free_irqs: