From: Jonas Aaberg <jonas.ab...@stericsson.com>
Detect battery type in work queue instead of probe.
This reduces the system boot time with 1.5s.
Signed-off-by: Jonas Aaberg <jonas.ab...@stericsson.com>
Signed-off-by: Lee Jones <lee.jo...@linaro.org>
Reviewed-by: Karl KOMIEROWSKI <karl.komierow...@stericsson.com>
---
drivers/power/ab8500_btemp.c | 15 +++++++++++----
1 file changed, 11 insertions(+), 4 deletions(-)
diff --git a/drivers/power/ab8500_btemp.c b/drivers/power/ab8500_btemp.c
index 8135542..5d1bf0b 100644
--- a/drivers/power/ab8500_btemp.c
+++ b/drivers/power/ab8500_btemp.c
@@ -84,6 +84,7 @@ struct ab8500_btemp_ranges {
* @btemp_ranges: Battery temperature range structure
* @btemp_wq: Work queue for measuring the temperature periodically
* @btemp_periodic_work: Work for measuring the temperature periodically
+ * @initialized: True if battery id read.
*/
struct ab8500_btemp {
struct device *dev;
@@ -100,6 +101,7 @@ struct ab8500_btemp {
struct ab8500_btemp_ranges btemp_ranges;
struct workqueue_struct *btemp_wq;
struct delayed_work btemp_periodic_work;
+ bool initialized;
};
/* BTEMP power supply properties */
@@ -569,6 +571,13 @@ static void ab8500_btemp_periodic_work(struct work_struct
*work)
struct ab8500_btemp *di = container_of(work,
struct ab8500_btemp, btemp_periodic_work.work);
+ if (!di->initialized) {
+ di->initialized = true;
+ /* Identify the battery */
+ if (ab8500_btemp_id(di) < 0)
+ dev_warn(di->dev, "failed to identify the battery\n");
+ }
+
di->bat_temp = ab8500_btemp_measure_temp(di);
if (di->bat_temp != di->prev_bat_temp) {
@@ -998,6 +1007,8 @@ static int __devinit ab8500_btemp_probe(struct
platform_device *pdev)
di->parent = dev_get_drvdata(pdev->dev.parent);
di->gpadc = ab8500_gpadc_get("ab8500-gpadc.0");
+ di->initialized = false;
+
/* BTEMP supply */
di->btemp_psy.name = "ab8500_btemp";
di->btemp_psy.type = POWER_SUPPLY_TYPE_BATTERY;
@@ -1022,10 +1033,6 @@ static int __devinit ab8500_btemp_probe(struct
platform_device *pdev)
INIT_DEFERRABLE_WORK(&di->btemp_periodic_work,
ab8500_btemp_periodic_work);
- /* Identify the battery */
- if (ab8500_btemp_id(di) < 0)
- dev_warn(di->dev, "failed to identify the battery\n");
-
/* Set BTEMP thermal limits. Low and Med are fixed */
di->btemp_ranges.btemp_low_limit = BTEMP_THERMAL_LOW_LIMIT;
di->btemp_ranges.btemp_med_limit = BTEMP_THERMAL_MED_LIMIT;
--
1.7.9.5
--
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