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[v2,1/2] dt-bindings: phy: Allow defining the SATA AFE TX amplitude

Message ID 20201022205056.233879-2-f.fainelli@gmail.com
State Not Applicable
Headers show
Series phy: phy-brcm-sata: Allow configuration SATA AFE TX amplitude | expand

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Context Check Description
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Commit Message

Florian Fainelli Oct. 22, 2020, 8:50 p.m. UTC
Document a new property which allows the selection of the SATA AFE TX
amplitude in milli Volts. Possible values are 400, 500, 600 and 800mV.

Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
---
 Documentation/devicetree/bindings/phy/brcm-sata-phy.txt | 3 +++
 1 file changed, 3 insertions(+)
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Patch

diff --git a/Documentation/devicetree/bindings/phy/brcm-sata-phy.txt b/Documentation/devicetree/bindings/phy/brcm-sata-phy.txt
index c03ad2198410..e5abbace93a3 100644
--- a/Documentation/devicetree/bindings/phy/brcm-sata-phy.txt
+++ b/Documentation/devicetree/bindings/phy/brcm-sata-phy.txt
@@ -38,6 +38,9 @@  Sub-nodes optional properties:
 - brcm,rxaeq-value: when 'rxaeq-mode' is set to "manual", provides the RX
   equalizer value that should be used. Allowed range is 0..63.
 
+- brcm,tx-amplitude-millivolt: transmit amplitude voltage in millivolt.
+  Possible values are 400, 500, 600 or 800 mV.
+
 Example
 	sata-phy@f0458100 {
 		compatible = "brcm,bcm7445-sata-phy", "brcm,phy-sata3";