From: Florian Fainelli <f.fainelli@gmail.com>
To: linux-kernel@vger.kernel.org
Cc: Florian Fainelli <f.fainelli@gmail.com>,
Rob Herring <robh+dt@kernel.org>,
Mark Rutland <mark.rutland@arm.com>,
Kishon Vijay Abraham I <kishon@ti.com>,
Ray Jui <ray.jui@broadcom.com>,
Srinath Mannam <srinath.mannam@broadcom.com>,
Vivek Gautam <vivek.gautam@codeaurora.org>,
Viresh Kumar <viresh.kumar@linaro.org>,
Heiko Stuebner <heiko@sntech.de>,
Dan Carpenter <dan.carpenter@oracle.com>,
devicetree@vger.kernel.org (open list:OPEN FIRMWARE AND
FLATTENED DEVICE TREE BINDINGS),
bcm-kernel-feedback-list@broadcom.com
Subject: [PATCH 1/3] dt-bindings: phy: Add RX equalizer properties for Broadcom SATA PHY
Date: Wed, 11 Oct 2017 17:53:10 -0700 [thread overview]
Message-ID: <20171012005312.17363-2-f.fainelli@gmail.com> (raw)
In-Reply-To: <20171012005312.17363-1-f.fainelli@gmail.com>
Define two new properties: brcm,rx-aeq-mode which allows configuring the
SATA PHY RX equalizers and when "manual" is used, brcm,rx-aeq can be
used to set the exact value.
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
---
Documentation/devicetree/bindings/phy/brcm-sata-phy.txt | 11 ++++++++++-
1 file changed, 10 insertions(+), 1 deletion(-)
diff --git a/Documentation/devicetree/bindings/phy/brcm-sata-phy.txt b/Documentation/devicetree/bindings/phy/brcm-sata-phy.txt
index 97977cd29a98..0aced97d8092 100644
--- a/Documentation/devicetree/bindings/phy/brcm-sata-phy.txt
+++ b/Documentation/devicetree/bindings/phy/brcm-sata-phy.txt
@@ -27,7 +27,16 @@ Sub-nodes optional properties:
This property is not applicable for "brcm,iproc-ns2-sata-phy",
"brcm,iproc-nsp-sata-phy" and "brcm,iproc-sr-sata-phy".
-Example:
+- brcm,rxaeq-mode: string that indicates the desired RX equalizer
+ mode, possible values are:
+ "off" (equivalent to not specifying the property)
+ "auto"
+ "manual" (brcm,rxaeq-value is used in that case)
+
+- brcm,rxaeq-value: when 'rxaeq-mode' is set to "manual", provides the RX
+ equalizer value that should be used. Allowed range is 0..63.
+
+Example
sata-phy@f0458100 {
compatible = "brcm,bcm7445-sata-phy", "brcm,phy-sata3";
reg = <0xf0458100 0x1e00>, <0xf045804c 0x10>;
--
2.9.3
next prev parent reply other threads:[~2017-10-12 0:53 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-10-12 0:53 [PATCH 0/3] phy: brcm-sata: Allow RX equalizer tuning Florian Fainelli
2017-10-12 0:53 ` Florian Fainelli [this message]
2017-10-17 20:26 ` [PATCH 1/3] dt-bindings: phy: Add RX equalizer properties for Broadcom SATA PHY Rob Herring
2017-10-12 0:53 ` [PATCH 2/3] phy: brcm-sata: Prepare for doing more tuning Florian Fainelli
2017-10-12 0:53 ` [PATCH 3/3] phy: brcm-sata: Allow RX equalizer tuning Florian Fainelli
2017-10-18 12:18 ` [PATCH 0/3] " Kishon Vijay Abraham I
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