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 <anthony.olech.opensource@xxxxxxxxxxx>
---
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
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