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authorFlorian Fainelli <f.fainelli@gmail.com>2020-10-22 13:50:55 -0700
committerVinod Koul <vkoul@kernel.org>2020-11-16 15:19:03 +0530
commit6d3b3f88423e4edc0fad5853c10558b42e1a91dd (patch)
tree2ab467be9a73e87f233f72eb7d8a38ac442eaf7f
parentphy: stm32: defer probe for reset controller (diff)
downloadlinux-dev-6d3b3f88423e4edc0fad5853c10558b42e1a91dd.tar.xz
linux-dev-6d3b3f88423e4edc0fad5853c10558b42e1a91dd.zip
dt-bindings: phy: Allow defining the SATA AFE TX amplitude
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> Link: https://lore.kernel.org/r/20201022205056.233879-2-f.fainelli@gmail.com Signed-off-by: Vinod Koul <vkoul@kernel.org>
-rw-r--r--Documentation/devicetree/bindings/phy/brcm-sata-phy.txt3
1 files changed, 3 insertions, 0 deletions
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";