mfd: axp20x: Mark axp288 CHRG_BAK_CTRL register volatile

The input current limit bits get updated by the charger detection logic,
so we should not cache the contents of this register.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>

1 files changed, 1 insertions, 0 deletions

diff --git a/drivers/mfd/axp20x.c b/drivers/mfd/axp20x.c
index d8c92fbbd170..e94c72c2faa2 100644
--- a/drivers/mfd/axp20x.c
+++ b/drivers/mfd/axp20x.c
@@ -129,6 +129,7 @@ static const struct regmap_range axp288_volatile_ranges[] = {
         regmap_reg_range(AXP20X_PWR_INPUT_STATUS, AXP288_POWER_REASON),
         regmap_reg_range(AXP288_BC_GLOBAL, AXP288_BC_GLOBAL),
         regmap_reg_range(AXP288_BC_DET_STAT, AXP288_BC_DET_STAT),
+        regmap_reg_range(AXP20X_CHRG_BAK_CTRL, AXP20X_CHRG_BAK_CTRL),
         regmap_reg_range(AXP20X_IRQ1_EN, AXP20X_IPSOUT_V_HIGH_L),
         regmap_reg_range(AXP20X_TIMER_CTRL, AXP20X_TIMER_CTRL),
         regmap_reg_range(AXP22X_GPIO_STATE, AXP22X_GPIO_STATE),