The ADC resolution of the PMIC is 10-bits, this means that the maximum possible value is 1023 and not the 1024 as in the code.
Signed-off-by: Anthony Olech <[email protected]> --- This patch is relative to linux-next repository tag next-20131218 drivers/power/da9052-battery.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/power/da9052-battery.c b/drivers/power/da9052-battery.c index f8f4c0f..8f0f259 100644 --- a/drivers/power/da9052-battery.c +++ b/drivers/power/da9052-battery.c @@ -178,7 +178,7 @@ struct da9052_battery { static inline int volt_reg_to_mV(int value) { - return ((value * 1000) / 512) + 2500; + return DIV_ROUND_CLOSEST(value * 2000, 1023) + 2500; } static inline int ichg_reg_to_mA(int value) -- end-of-patch for fix adc to voltage calculation in da9052 power driver V1 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
