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38 lines
1.7 KiB
Diff
38 lines
1.7 KiB
Diff
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From 924087c5c3d41553700b0eb83ca2a53b91643dca Mon Sep 17 00:00:00 2001
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From: Ansuel Smith <ansuelsmth@gmail.com>
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Date: Thu, 14 Oct 2021 00:39:14 +0200
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Subject: dt-bindings: net: dsa: qca8k: Document qca,led-open-drain binding
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Document new binding qca,ignore-power-on-sel used to ignore
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power on strapping and use sw regs instead.
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Document qca,led-open.drain to set led to open drain mode, the
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qca,ignore-power-on-sel is mandatory with this enabled or an error will
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be reported.
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Signed-off-by: Ansuel Smith <ansuelsmth@gmail.com>
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Signed-off-by: David S. Miller <davem@davemloft.net>
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---
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Documentation/devicetree/bindings/net/dsa/qca8k.txt | 11 +++++++++++
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1 file changed, 11 insertions(+)
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--- a/Documentation/devicetree/bindings/net/dsa/qca8k.txt
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+++ b/Documentation/devicetree/bindings/net/dsa/qca8k.txt
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@@ -13,6 +13,17 @@ Required properties:
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Optional properties:
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- reset-gpios: GPIO to be used to reset the whole device
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+- qca,ignore-power-on-sel: Ignore power on pin strapping to configure led open
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+ drain or eeprom presence. This is needed for broken
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+ devices that have wrong configuration or when the oem
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+ decided to not use pin strapping and fallback to sw
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+ regs.
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+- qca,led-open-drain: Set leds to open-drain mode. This requires the
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+ qca,ignore-power-on-sel to be set or the driver will fail
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+ to probe. This is needed if the oem doesn't use pin
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+ strapping to set this mode and prefers to set it using sw
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+ regs. The pin strapping related to led open drain mode is
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+ the pin B68 for QCA832x and B49 for QCA833x
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Subnodes:
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