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Commit 680c8a2f authored by Paul Cercueil's avatar Paul Cercueil Committed by Paul Gortmaker
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power/supply: ingenic-battery: Don't change scale if there's only one



commit 86b9182d upstream.

The ADC in the JZ4740 can work either in high-precision mode with a 2.5V
range, or in low-precision mode with a 7.5V range. The code in place in
this driver will select the proper scale according to the maximum
voltage of the battery.

The JZ4770 however only has one mode, with a 6.6V range. If only one
scale is available, there's no need to change it (and nothing to change
it to), and trying to do so will fail with -EINVAL.

Fixes: fb24ccfb ("power: supply: add Ingenic JZ47xx battery driver.")

Signed-off-by: default avatarPaul Cercueil <paul@crapouillou.net>
Acked-by: default avatarArtur Rojek <contact@artur-rojek.eu>
Cc: stable@vger.kernel.org
Signed-off-by: default avatarSebastian Reichel <sebastian.reichel@collabora.com>
Signed-off-by: default avatarPaul Gortmaker <paul.gortmaker@windriver.com>
parent 1d9b5f78
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