[PATCH V3 05/15] dt-bindings: power: supply: axp20x: Add input-current-limit-microamp

Chris Morgan
2024-08-19T16:48:47Z

Allow specifying a hard limit of the maximum input current. Some PMICs
such as the AXP717 can pull up to 3.25A, so allow a value to be
specified that clamps this in the event the hardware is not designed
for it.

Signed-off-by: Chris Morgan <macromorgan@hotmail.com>
---
.../x-powers,axp20x-usb-power-supply.yaml | 69 ++++++++++++++++++-
1 file changed, 66 insertions(+), 3 deletions(-)

diff --git a/Documentation/devicetree/bindings/power/supply/x-powers,axp20x-usb-power-supply.yaml b/Documentation/devicetree/bindings/power/supply/x-powers,axp20x-usb-power-supply.yaml
index 34b7959d6772..9cc300e78f60 100644
--- a/Documentation/devicetree/bindings/power/supply/x-powers,axp20x-usb-power-supply.yaml
+++ b/Documentation/devicetree/bindings/power/supply/x-powers,axp20x-usb-power-supply.yaml
@@ -15,9 +15,6 @@ maintainers:
- Chen-Yu Tsai <wens@csie.org>
- Sebastian Reichel <sre@kernel.org>

-allOf:
- - $ref: power-supply.yaml#
-
properties:
compatible:
oneOf:
@@ -31,8 +28,74 @@ properties:
- const: x-powers,axp803-usb-power-supply
- const: x-powers,axp813-usb-power-supply

+ input-current-limit-microamp:
+ description:
+ Optional value to clamp the maximum input current limit to for
+ the device. If omitted, the programmed value from the EFUSE will
+ be used.

required:
- compatible

+allOf:
+ - $ref: power-supply.yaml#
+ - if:
+ properties:
+ compatible:
+ contains:
+ enum:
+ - x-powers,axp192-usb-power-supply
+ then:
+ properties:
+ input-current-limit-microamp:
+ enum: [100000, 500000]
+
+ - if:
+ properties:
+ compatible:
+ contains:
+ enum:
+ - x-powers,axp202-usb-power-supply
+ - x-powers,axp223-usb-power-supply
+ then:
+ properties:
+ input-current-limit-microamp:
+ enum: [100000, 500000, 900000]
+
+ - if:
+ properties:
+ compatible:
+ contains:
+ enum:
+ - x-powers,axp221-usb-power-supply
+ then:
+ properties:
+ input-current-limit-microamp:
+ enum: [500000, 900000]
+
+ - if:
+ properties:
+ compatible:
+ contains:
+ enum:
+ - x-powers,axp717-usb-power-supply
+ then:
+ properties:
+ input-current-limit-microamp:
+ description: Maximum input current in increments of 50000 uA.
+ minimum: 100000
+ maximum: 3250000
+
+ - if:
+ properties:
+ compatible:
+ contains:
+ enum:
+ - x-powers,axp813-usb-power-supply
+ then:
+ properties:
+ input-current-limit-microamp:
+ enum: [100000, 500000, 900000, 1500000, 2000000, 2500000,
+ 3000000, 3500000, 4000000]
+
additionalProperties: false
--
2.34.1