bq27x00_battery: Fix flag register read

When reading flags, bq27x00_read() argument is inverted and causes
reads 2 of bytes for bq27200 and 1 byte for bq27500, while their register
sizes are 1 and 2 bytes respectively. This causes bq27500 upper flag
bits always to be returned as 0, causing full charge state to never be
reported correctly, so fix it.

Cc: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Grazvydas Ignotas <notasas@gmail.com>
Acked-by: Pali Rohár <pali.rohar@gmail.com>
Signed-off-by: Anton Vorontsov <cbouatmailru@gmail.com>

1 files changed, 1 insertions, 1 deletions

diff --git a/drivers/power/bq27x00_battery.c b/drivers/power/bq27x00_battery.c
index d4b5281dea15..1ed6ea0bad6e 100644
--- a/drivers/power/bq27x00_battery.c
+++ b/drivers/power/bq27x00_battery.c
@@ -311,7 +311,7 @@ static void bq27x00_update(struct bq27x00_device_info *di)
         struct bq27x00_reg_cache cache = {0, };
         bool is_bq27500 = di->chip == BQ27500;
 
-        cache.flags = bq27x00_read(di, BQ27x00_REG_FLAGS, is_bq27500);
+        cache.flags = bq27x00_read(di, BQ27x00_REG_FLAGS, !is_bq27500);
         if (cache.flags >= 0) {
                 if (!is_bq27500 && (cache.flags & BQ27000_FLAG_CI)) {
                         dev_info(di->dev, "battery is not calibrated! ignoring capacity values\n");