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Code Issues Releases Wiki Activity

power: supply: ab8500: stop using getnstimeofday64()

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getnstimeofday64() is deprecated in favor of the ktime_get() family.

The direct replacement would be ktime_get_real_ts64(), but we only need
the seconds value, and it seems better to use boottime than real time
to avoid unexpected behavior with a concurrent settimeofday().

ktime_get_seconds() might also work, but it seems better to use
boottime than monotonic time since I assume that the charging
process continues during suspend.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.co.uk>
This commit is contained in:
Arnd Bergmann 2018-06-18 16:23:29 +02:00 committed by Sebastian Reichel
parent e6a578e289
commit 8b0d62d49a
1 changed files with 6 additions and 8 deletions
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14
drivers/power/supply/ab8500_fg.c
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@ -379,15 +379,13 @@ static int ab8500_fg_is_low_curr(struct ab8500_fg *di, int curr)
*/ */
static int ab8500_fg_add_cap_sample(struct ab8500_fg *di, int sample) static int ab8500_fg_add_cap_sample(struct ab8500_fg *di, int sample)
{ {
struct timespec64 ts64; time64_t now = ktime_get_boottime_seconds();
struct ab8500_fg_avg_cap *avg = &di->avg_cap; struct ab8500_fg_avg_cap *avg = &di->avg_cap;
getnstimeofday64(&ts64);
do { do {
avg->sum += sample - avg->samples[avg->pos]; avg->sum += sample - avg->samples[avg->pos];
avg->samples[avg->pos] = sample; avg->samples[avg->pos] = sample;
avg->time_stamps[avg->pos] = ts64.tv_sec; avg->time_stamps[avg->pos] = now;
avg->pos++; avg->pos++;
if (avg->pos == NBR_AVG_SAMPLES) if (avg->pos == NBR_AVG_SAMPLES)
@ -400,7 +398,7 @@ static int ab8500_fg_add_cap_sample(struct ab8500_fg *di, int sample)
* Check the time stamp for each sample. If too old, * Check the time stamp for each sample. If too old,
* replace with latest sample * replace with latest sample
*/ */
} while (ts64.tv_sec - VALID_CAPACITY_SEC > avg->time_stamps[avg->pos]); } while (now - VALID_CAPACITY_SEC > avg->time_stamps[avg->pos]);
avg->avg = avg->sum / avg->nbr_samples; avg->avg = avg->sum / avg->nbr_samples;
@ -439,14 +437,14 @@ static void ab8500_fg_clear_cap_samples(struct ab8500_fg *di)
static void ab8500_fg_fill_cap_sample(struct ab8500_fg *di, int sample) static void ab8500_fg_fill_cap_sample(struct ab8500_fg *di, int sample)
{ {
int i; int i;
struct timespec64 ts64; time64_t now;
struct ab8500_fg_avg_cap *avg = &di->avg_cap; struct ab8500_fg_avg_cap *avg = &di->avg_cap;
getnstimeofday64(&ts64); now = ktime_get_boottime_seconds();
for (i = 0; i < NBR_AVG_SAMPLES; i++) { for (i = 0; i < NBR_AVG_SAMPLES; i++) {
avg->samples[i] = sample; avg->samples[i] = sample;
avg->time_stamps[i] = ts64.tv_sec; avg->time_stamps[i] = now;
} }
avg->pos = 0; avg->pos = 0;