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From: Catalin Popescu <catalin.popescu@leica-geosystems.com>
To: davem@davemloft.net,
kuba@kernel.org,
pabeni@redhat.com,
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Catalin Popescu <catalin.popescu@leica-geosystems.com>
Subject: [PATCH v3 1/2] dt-bindings: net: dp83826: support TX data voltage
tuning
Date: Fri, 9 Feb 2024 13:36:27 +0100
Message-Id: <20240209123628.2113971-1-catalin.popescu@leica-geosystems.com>
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[v3,1/2] dt-bindings: net: dp83826: support TX data voltage tuning
|
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Commit Message
POPESCU Catalin
Feb. 9, 2024, 12:36 p.m. UTC
Add properties ti,cfg-dac-minus-one-bp/ti,cfg-dac-plus-one-bp
to support voltage tuning of logical levels -1/+1 of the MLT-3
encoded TX data.
Signed-off-by: Catalin Popescu <catalin.popescu@leica-geosystems.com>
---
Changes in v2:
- squash the 2 DT bindings patches in one single patch
- drop redundant "binding" from the DT bindings patch title
- rename DT properties and define them as percentage
- add default value for each new DT property
Changes in v3:
- rename properties to "-bp" and change their admissible values
accordingly
---
.../devicetree/bindings/net/ti,dp83822.yaml | 18 ++++++++++++++++++
1 file changed, 18 insertions(+)
base-commit: 1f719a2f3fa67665578c759ac34fd3d3690c1a20
prerequisite-patch-id: 0000000000000000000000000000000000000000
Comments
On 09/02/2024 13:36, Catalin Popescu wrote: > Add properties ti,cfg-dac-minus-one-bp/ti,cfg-dac-plus-one-bp > to support voltage tuning of logical levels -1/+1 of the MLT-3 > encoded TX data. > > Signed-off-by: Catalin Popescu <catalin.popescu@leica-geosystems.com> > --- > Changes in v2: Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Best regards, Krzysztof
diff --git a/Documentation/devicetree/bindings/net/ti,dp83822.yaml b/Documentation/devicetree/bindings/net/ti,dp83822.yaml index db74474207ed..8f4350be689c 100644 --- a/Documentation/devicetree/bindings/net/ti,dp83822.yaml +++ b/Documentation/devicetree/bindings/net/ti,dp83822.yaml @@ -62,6 +62,24 @@ properties: for the PHY. The internal delay for the PHY is fixed to 3.5ns relative to transmit data. + ti,cfg-dac-minus-one-bp: + description: | + DP83826 PHY only. + Sets the voltage ratio (with respect to the nominal value) + of the logical level -1 for the MLT-3 encoded TX data. + enum: [5000, 5625, 6250, 6875, 7500, 8125, 8750, 9375, 10000, + 10625, 11250, 11875, 12500, 13125, 13750, 14375, 15000] + default: 10000 + + ti,cfg-dac-plus-one-bp: + description: | + DP83826 PHY only. + Sets the voltage ratio (with respect to the nominal value) + of the logical level +1 for the MLT-3 encoded TX data. + enum: [5000, 5625, 6250, 6875, 7500, 8125, 8750, 9375, 10000, + 10625, 11250, 11875, 12500, 13125, 13750, 14375, 15000] + default: 10000 + required: - reg