[PATCH] mfd: rn5t618: Fix caching of battery related registers

[Andreas Kemnade]

Battery status changes dynamically, so the corresponding registers
need to be considered volatile. Affected registers are:
- fuel gauge
- battery status
- battery interrupt

Signed-off-by: Andreas Kemnade <andr...@kemnade.info>
---
 drivers/mfd/rn5t618.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/mfd/rn5t618.c b/drivers/mfd/rn5t618.c
index 232de50562f9..55c47e555dd8 100644
--- a/drivers/mfd/rn5t618.c
+++ b/drivers/mfd/rn5t618.c
@@ -44,6 +44,9 @@ static bool rn5t618_volatile_reg(struct device *dev, unsigned 
int reg)
        case RN5T618_INTMON:
        case RN5T618_RTC_CTRL1 ... RN5T618_RTC_CTRL2:
        case RN5T618_RTC_SECONDS ... RN5T618_RTC_YEAR:
+       case RN5T618_CHGSTATE:
+       case RN5T618_CHGCTRL_IRR ... RN5T618_CHGERR_MONI:
+       case RN5T618_CONTROL ... RN5T618_CC_AVEREG0:
                return true;
        default:
                return false;
-- 
2.20.1