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[ Upstream commit30cc7b0d0e] The charge input threshold voltage register on the MAX77693 PMIC accepts four values: 0x0 for 4.3v, 0x1 for 4.7v, 0x2 for 4.8v and 0x3 for 4.9v. Due to an oversight, the driver calculated the values for 4.7v and above starting from 0x0, rather than from 0x1 ([(4700000 - 4700000) / 100000] gives 0). Add 1 to the calculation to ensure that 4.7v is converted to a register value of 0x1 and that the other two voltages are converted correctly as well. Fixes:87c2d90678("power: max77693: Add charger driver for Maxim 77693") Signed-off-by: Artur Weber <aweber.kernel@gmail.com> Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Link: https://lore.kernel.org/r/20250316-max77693-charger-input-threshold-fix-v1-1-2b037d0ac722@gmail.com Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com> Signed-off-by: Sasha Levin <sashal@kernel.org>