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linux/drivers/power
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H. Nikolaus Schaller 7061e566ce power: supply: bq27xxx: restrict no-battery detection to bq27000 
commit 1e451977e1 upstream.

There are fuel gauges in the bq27xxx series (e.g. bq27z561) which may in some
cases report 0xff as the value of BQ27XXX_REG_FLAGS that should not be
interpreted as "no battery" like for a disconnected battery with some built
in bq27000 chip.

So restrict the no-battery detection originally introduced by

    commit 3dd843e1c2 ("bq27000: report missing device better.")

to the bq27000.

There is no need to backport further because this was hidden before

	commit f16d9fb6cf ("power: supply: bq27xxx: Retrieve again when busy")

Fixes: f16d9fb6cf ("power: supply: bq27xxx: Retrieve again when busy")
Suggested-by: Jerry Lv <Jerry.Lv@axis.com>
Cc: stable@vger.kernel.org
Signed-off-by: H. Nikolaus Schaller <hns@goldelico.com>
Link: https://lore.kernel.org/r/dd979fa6855fd051ee5117016c58daaa05966e24.1755945297.git.hns@goldelico.com
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
History 2025-09-25 11:13:45 +02:00
..
reset power: reset: at91-reset: Optimize at91_reset() 2025-06-19 15:31:31 +02:00
sequencing power: sequencing: make the QCom PMU pwrseq driver depend on CONFIG_OF 2024-12-05 14:01:29 +01:00
supply power: supply: bq27xxx: restrict no-battery detection to bq27000 2025-09-25 11:13:45 +02:00
Kconfig power: sequencing: implement the pwrseq core 2024-06-12 09:20:13 +02:00
Makefile power: sequencing: implement the pwrseq core 2024-06-12 09:20:13 +02:00