[RFT PATCH 3/9] power: supply: axp20x_usb_power: allow disabling input current limiting

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The AXP PMICs allow the user to disable current limiting on the VBUS
input. While read-out of this setting was already supported by the
driver, it did not allow the user to configure the PMIC to disable
current limiting.

Add support for this.

Signed-off-by: Chen-Yu Tsai <wens@xxxxxxxx>
---
 drivers/power/supply/axp20x_usb_power.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/drivers/power/supply/axp20x_usb_power.c b/drivers/power/supply/axp20x_usb_power.c
index cd9b90d79839..e2f353906bb1 100644
--- a/drivers/power/supply/axp20x_usb_power.c
+++ b/drivers/power/supply/axp20x_usb_power.c
@@ -230,6 +230,11 @@ static int axp20x_usb_power_set_current_max(struct axp20x_usb_power *power,
 		return regmap_update_bits(power->regmap,
 					  AXP20X_VBUS_IPSOUT_MGMT,
 					  AXP20X_VBUS_CLIMIT_MASK, val);
+	case -1:
+		return regmap_update_bits(power->regmap,
+					  AXP20X_VBUS_IPSOUT_MGMT,
+					  AXP20X_VBUS_CLIMIT_MASK,
+					  AXP20X_VBUS_CLIMIT_NONE);
 	default:
 		return -EINVAL;
 	}
-- 
2.20.1




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