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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2020-08-07 21:27:37 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2020-08-07 21:27:37 -0700 |
| commit | 449dc8c97089a6e09fb2dac4d92b1b7ac0eb7c1e (patch) | |
| tree | 31db869c221d9a0de519a7c2206374029fa9943e /include/linux/math64.h | |
| parent | b79675e15a754ca51b9fc631e0961ccdd4ec3fc7 (diff) | |
| parent | 46cbd0b05799e8234b719d18f3a4b27679c4c92e (diff) | |
| download | linux-449dc8c97089a6e09fb2dac4d92b1b7ac0eb7c1e.tar.bz2 | |
Merge tag 'for-v5.9' of git://git.kernel.org/pub/scm/linux/kernel/git/sre/linux-power-supply
Pull power supply and reset updates from Sebastian Reichel:
"Power-supply core:
- add COOL/WARM/HOT state from JEITA JISC8712:2015 specification
- convert simple-battery DT binding to YAML
- add long-life charging mode
Battery/charger drivers:
- bq25150: new charger driver
- bq27xxx: add support for BQ27z561 and BQ28z610
- max17040: support CAPACITY_ALERT_MIN
- sbs-battery: add PEC support
- wilco-ec: support long-life charging mode
- bq25890: fix DT binding
- misc. fixes and cleanups
Reset drivers:
- linkstation: new reset driver"
* tag 'for-v5.9' of git://git.kernel.org/pub/scm/linux/kernel/git/sre/linux-power-supply: (32 commits)
power: supply: wilco_ec: Add long life charging mode
power: supply: bq27xxx_battery: Add the BQ28z610 Battery monitor
dt-bindings: power: Add BQ28z610 compatible
power: supply: bq27xxx_battery: Add the BQ27Z561 Battery monitor
dt-bindings: power: Add BQ27Z561 compatible
power: supply: test_power: Fix battery_current initial value
power: supply: Fix kerneldoc of power_supply_temp2resist_simple()
power: supply: cpcap-battery: Fix kerneldoc of cpcap_battery_read_accumulated()
dt-bindings: power: Convert battery.txt to battery.yaml
power: supply: rt5033_battery: Fix error code in rt5033_battery_probe()
power: supply: max17040: Add POWER_SUPPLY_PROP_CAPACITY_ALERT_MIN
power: supply: check if calc_soc succeeded in pm860x_init_battery
power: supply: bq2xxxx: Replace HTTP links with HTTPS ones
power: reset: add driver for LinkStation power off
power: supply: sc27xx: prevent adc * 1000 from overflow
math64: New DIV_S64_ROUND_CLOSEST helper
power: fix duplicated words in bq2415x_charger.h
power: Convert to DEFINE_SHOW_ATTRIBUTE
power: reset: keystone-reset: Replace HTTP links with HTTPS ones
power: supply: bq25150 introduce the bq25150
...
Diffstat (limited to 'include/linux/math64.h')
| -rw-r--r-- | include/linux/math64.h | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/include/linux/math64.h b/include/linux/math64.h index d097119419e6..3381d9e33c4e 100644 --- a/include/linux/math64.h +++ b/include/linux/math64.h @@ -281,4 +281,23 @@ u64 mul_u64_u64_div_u64(u64 a, u64 mul, u64 div); #define DIV64_U64_ROUND_CLOSEST(dividend, divisor) \ ({ u64 _tmp = (divisor); div64_u64((dividend) + _tmp / 2, _tmp); }) +/* + * DIV_S64_ROUND_CLOSEST - signed 64bit divide with 32bit divisor rounded to nearest integer + * @dividend: signed 64bit dividend + * @divisor: signed 32bit divisor + * + * Divide signed 64bit dividend by signed 32bit divisor + * and round to closest integer. + * + * Return: dividend / divisor rounded to nearest integer + */ +#define DIV_S64_ROUND_CLOSEST(dividend, divisor)( \ +{ \ + s64 __x = (dividend); \ + s32 __d = (divisor); \ + ((__x > 0) == (__d > 0)) ? \ + div_s64((__x + (__d / 2)), __d) : \ + div_s64((__x - (__d / 2)), __d); \ +} \ +) #endif /* _LINUX_MATH64_H */ |