diff options
| author | Pali Rohár <pali.rohar@gmail.com> | 2011-11-01 04:43:03 +0400 |
|---|---|---|
| committer | Anton Vorontsov <cbouatmailru@gmail.com> | 2011-11-25 23:57:14 +0400 |
| commit | b68f6216c5f53698379603209d3168766449fdab (patch) | |
| tree | da4a07c26d78ee7d7f309c6328d93fb5f551499f /drivers | |
| parent | e7a5f6d55991fb3b3214f435681ee2db96320395 (diff) | |
| download | linux-b68f6216c5f53698379603209d3168766449fdab.tar.xz | |
bq27x00_battery: Do not cache current_now value for bq27000 batery
* This prevent reporting old current_now value for bq27000
* Also ask for current flags, to make sure that current_now
will be reported with correct signature
Signed-off-by: Pali Rohár <pali.rohar@gmail.com>
Signed-off-by: Anton Vorontsov <cbouatmailru@gmail.com>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/power/bq27x00_battery.c | 19 |
1 files changed, 5 insertions, 14 deletions
diff --git a/drivers/power/bq27x00_battery.c b/drivers/power/bq27x00_battery.c index bb16f5b7e167..d238144d1e81 100644 --- a/drivers/power/bq27x00_battery.c +++ b/drivers/power/bq27x00_battery.c @@ -80,8 +80,6 @@ struct bq27x00_reg_cache { int cycle_count; int capacity; int flags; - - int current_now; }; struct bq27x00_device_info { @@ -270,17 +268,12 @@ static void bq27x00_update(struct bq27x00_device_info *di) cache.charge_full = bq27x00_battery_read_lmd(di); cache.cycle_count = bq27x00_battery_read_cyct(di); - if (!is_bq27500) - cache.current_now = bq27x00_read(di, BQ27x00_REG_AI, false); - /* We only have to read charge design full once */ if (di->charge_design_full <= 0) di->charge_design_full = bq27x00_battery_read_ilmd(di); } - /* Ignore current_now which is a snapshot of the current battery state - * and is likely to be different even between two consecutive reads */ - if (memcmp(&di->cache, &cache, sizeof(cache) - sizeof(int)) != 0) { + if (memcmp(&di->cache, &cache, sizeof(cache)) != 0) { di->cache = cache; power_supply_changed(&di->bat); } @@ -330,12 +323,9 @@ static int bq27x00_battery_current(struct bq27x00_device_info *di, union power_supply_propval *val) { int curr; + int flags; - if (di->chip == BQ27500) - curr = bq27x00_read(di, BQ27x00_REG_AI, false); - else - curr = di->cache.current_now; - + curr = bq27x00_read(di, BQ27x00_REG_AI, false); if (curr < 0) return curr; @@ -343,7 +333,8 @@ static int bq27x00_battery_current(struct bq27x00_device_info *di, /* bq27500 returns signed value */ val->intval = (int)((s16)curr) * 1000; } else { - if (di->cache.flags & BQ27000_FLAG_CHGS) { + flags = bq27x00_read(di, BQ27x00_REG_FLAGS, false); + if (flags & BQ27000_FLAG_CHGS) { dev_dbg(di->dev, "negative current!\n"); curr = -curr; } |