From: Roger Quadros <rogerq@ti.com>
To: <balbi@kernel.org>
Cc: <pawell@cadence.com>, <kurahul@cadence.com>, <nsekhar@ti.com>,
<vigneshr@ti.com>, <robh+dt@kernel.org>,
<linux-usb@vger.kernel.org>, <linux-kernel@vger.kernel.org>,
<devicetree@vger.kernel.org>, Roger Quadros <rogerq@ti.com>
Subject: [PATCH v2 2/3] dt-bindings: usb: cdns,usb3: Add cdns,phyrst-a-enable property
Date: Wed, 2 Sep 2020 16:35:42 +0300 [thread overview]
Message-ID: <20200902133543.17222-3-rogerq@ti.com> (raw)
In-Reply-To: <20200902133543.17222-1-rogerq@ti.com>
Controller version 0x0002450D has USB2 PHY RX sensitivity issues
that needs to be worked around by enabling phyrst-a-enable bit
in PHYRST_CFG register.
There is no way to know controller version before device controller
is started and the workaround needs to be applied for both host and
device modes, so we add this DT property.
Signed-off-by: Roger Quadros <rogerq@ti.com>
---
Documentation/devicetree/bindings/usb/cdns,usb3.yaml | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/Documentation/devicetree/bindings/usb/cdns,usb3.yaml b/Documentation/devicetree/bindings/usb/cdns,usb3.yaml
index 7bc0263accee..e670adc955e1 100644
--- a/Documentation/devicetree/bindings/usb/cdns,usb3.yaml
+++ b/Documentation/devicetree/bindings/usb/cdns,usb3.yaml
@@ -58,6 +58,10 @@ properties:
buffers expressed in KB
$ref: /schemas/types.yaml#/definitions/uint32
+ cdns,phyrst-a-enable:
+ description: Enable resetting of PHY if Rx fail is detected
+ type: boolean
+
required:
- compatible
- reg
--
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Y-tunnus/Business ID: 0615521-4. Kotipaikka/Domicile: Helsinki
next prev parent reply other threads:[~2020-09-02 14:57 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-09-02 13:35 [PATCH v2 0/3] usb: cdns,usb3: Convert DT binding to YAML Roger Quadros
2020-09-02 13:35 ` [PATCH v2 1/3] dt-bindings: usb: Convert cdns-usb3.txt to YAML schema Roger Quadros
2020-09-08 6:11 ` Felipe Balbi
2020-09-14 20:19 ` Rob Herring
2020-09-02 13:35 ` Roger Quadros [this message]
2020-09-14 20:20 ` [PATCH v2 2/3] dt-bindings: usb: cdns,usb3: Add cdns,phyrst-a-enable property Rob Herring
2020-09-02 13:35 ` [PATCH v2 3/3] usb: cdns3: Enable workaround for USB2.0 PHY Rx compliance test PHY lockup Roger Quadros
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