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power: ab8500_fg.c: use 64-bit time types 

This patch changes 32-bit time types to 64-bit in
drivers/power/ab8500_fg.c

timespec and time_t can only represent signed 32-bit
dates but the driver should represent dates that are
after January 2038. So used time64.h header file and
its proper types and functions.

Use time64_t type instead of __kernel_time_t for
time_stamps variable of ab8500_fg_avg_cap struct

Signed-off-by: Ebru Akagunduz <ebru.akagunduz@gmail.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Sebastian Reichel <sre@kernel.org>
This commit is contained in:
Ebru Akagunduz 2014-10-08 17:09:46 +03:00 committed by Sebastian Reichel
parent 7881c64716
commit 8000ebf762
1 changed files with 9 additions and 8 deletions
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17
drivers/power/ab8500_fg.c
View File

@ -25,6 +25,7 @@
#include <linux/slab.h>
#include <linux/delay.h>
#include <linux/time.h>
#include <linux/time64.h>
#include <linux/of.h>
#include <linux/completion.h>
#include <linux/mfd/core.h>
@ -108,7 +109,7 @@ enum ab8500_fg_calibration_state {
struct ab8500_fg_avg_cap {
int avg;
int samples[NBR_AVG_SAMPLES];
__kernel_time_t time_stamps[NBR_AVG_SAMPLES];
time64_t time_stamps[NBR_AVG_SAMPLES];
int pos;
int nbr_samples;
int sum;
@ -386,15 +387,15 @@ 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)
{
struct timespec ts;
struct timespec64 ts64;
struct ab8500_fg_avg_cap *avg = &di->avg_cap;
getnstimeofday(&ts);
getnstimeofday64(&ts64);
do {
avg->sum += sample - avg->samples[avg->pos];
avg->samples[avg->pos] = sample;
avg->time_stamps[avg->pos] = ts.tv_sec;
avg->time_stamps[avg->pos] = ts64.tv_sec;
avg->pos++;
if (avg->pos == NBR_AVG_SAMPLES)
@ -407,7 +408,7 @@ static int ab8500_fg_add_cap_sample(struct ab8500_fg *di, int sample)
* Check the time stamp for each sample. If too old,
* replace with latest sample
*/
} while (ts.tv_sec - VALID_CAPACITY_SEC > avg->time_stamps[avg->pos]);
} while (ts64.tv_sec - VALID_CAPACITY_SEC > avg->time_stamps[avg->pos]);
avg->avg = avg->sum / avg->nbr_samples;
@ -446,14 +447,14 @@ static void ab8500_fg_clear_cap_samples(struct ab8500_fg *di)
static void ab8500_fg_fill_cap_sample(struct ab8500_fg *di, int sample)
{
int i;
struct timespec ts;
struct timespec64 ts64;
struct ab8500_fg_avg_cap *avg = &di->avg_cap;
getnstimeofday(&ts);
getnstimeofday64(&ts64);
for (i = 0; i < NBR_AVG_SAMPLES; i++) {
avg->samples[i] = sample;
avg->time_stamps[i] = ts.tv_sec;
avg->time_stamps[i] = ts64.tv_sec;
}
avg->pos = 0;