[net-next PATCH v5 09/14] dt-bindings: net: dsa: qca8k: Document qca,led-open-drain binding

Ansuel Smith
2021-10-11T01:31:21Z

Document new binding qca,ignore-power-on-sel used to ignore
power on strapping and use sw regs instead.
Document qca,led-open.drain to set led to open drain mode, the
qca,ignore-power-on-sel is mandatory with this enabled or an error will
be reported.

Signed-off-by: Ansuel Smith <ansuelsmth@gmail.com>
---
Documentation/devicetree/bindings/net/dsa/qca8k.txt | 11 +++++++++++
1 file changed, 11 insertions(+)

diff --git a/Documentation/devicetree/bindings/net/dsa/qca8k.txt b/Documentation/devicetree/bindings/net/dsa/qca8k.txt
index 05a8ddfb5483..9e6748ec13da 100644
--- a/Documentation/devicetree/bindings/net/dsa/qca8k.txt
+++ b/Documentation/devicetree/bindings/net/dsa/qca8k.txt
@@ -13,6 +13,17 @@ Required properties:
Optional properties:

- reset-gpios: GPIO to be used to reset the whole device
+- qca,ignore-power-on-sel: Ignore power on pin strapping to configure led open
+ drain or eeprom presence. This is needed for broken
+ devices that have wrong configuration or when the oem
+ decided to not use pin strapping and fallback to sw
+ regs.
+- qca,led-open-drain: Set leds to open-drain mode. This requires the
+ qca,ignore-power-on-sel to be set or the driver will fail
+ to probe. This is needed if the oem doesn't use pin
+ strapping to set this mode and prefers to set it using sw
+ regs. The pin strapping related to led open drain mode is
+ the pin B68 for QCA832x and B49 for QCA833x

Subnodes:

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2.32.0