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Message-Id: <20240213080705.4184566-1-catalin.popescu@leica-geosystems.com>
Date: Tue, 13 Feb 2024 09:07:04 +0100
From: Catalin Popescu <catalin.popescu@...ca-geosystems.com>
To: davem@...emloft.net,
kuba@...nel.org,
pabeni@...hat.com,
robh+dt@...nel.org,
krzysztof.kozlowski+dt@...aro.org,
conor+dt@...nel.org,
afd@...com,
andrew@...n.ch,
hkallweit1@...il.com,
linux@...linux.org.uk
Cc: netdev@...r.kernel.org,
devicetree@...r.kernel.org,
linux-kernel@...r.kernel.org,
bsp-development.geo@...ca-geosystems.com,
m.felsch@...gutronix.de,
Catalin Popescu <catalin.popescu@...ca-geosystems.com>,
Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
Subject: [PATCH v5 1/2] dt-bindings: net: dp83826: support TX data voltage tuning
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.
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
Signed-off-by: Catalin Popescu <catalin.popescu@...ca-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
Changes in v4:
- add reviewed-by tag
---
.../devicetree/bindings/net/ti,dp83822.yaml | 18 ++++++++++++++++++
1 file changed, 18 insertions(+)
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
base-commit: 1f719a2f3fa67665578c759ac34fd3d3690c1a20
prerequisite-patch-id: 0000000000000000000000000000000000000000
--
2.34.1
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