From: Sergei Shtylyov <sergei.shtylyov@gmail.com>
To: Roger Quadros <rogerq@ti.com>, 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
Subject: Re: [PATCH v3 2/3] dt-bindings: usb: cdns,usb3: Add cdns,phyrst-a-enable property
Date: Tue, 15 Sep 2020 19:15:10 +0300 [thread overview]
Message-ID: <1b45d695-0874-69c7-8398-5d14033f0788@gmail.com> (raw)
In-Reply-To: <20200915114543.2599-3-rogerq@ti.com>
Hello!
On 9/15/20 2:45 PM, Roger Quadros wrote:
> 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>
> Acked-by: Rob Herring <robh@kernel.org>
> ---
> 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 9b14c8443d39..ac20b98e9910 100644
> --- a/Documentation/devicetree/bindings/usb/cdns,usb3.yaml
> +++ b/Documentation/devicetree/bindings/usb/cdns,usb3.yaml
> @@ -61,6 +61,10 @@ 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
Failure?
[...]
MBR, Sergei
next prev parent reply other threads:[~2020-09-15 22:33 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-09-15 11:45 [PATCH v3 0/3] usb: cdns,usb3: Convert DT binding to YAML Roger Quadros
2020-09-15 11:45 ` [PATCH v3 1/3] dt-bindings: usb: Convert cdns-usb3.txt to YAML schema Roger Quadros
2020-09-23 1:27 ` Rob Herring
2020-09-15 11:45 ` [PATCH v3 2/3] dt-bindings: usb: cdns,usb3: Add cdns,phyrst-a-enable property Roger Quadros
2020-09-15 16:15 ` Sergei Shtylyov [this message]
2020-09-24 9:51 ` Roger Quadros
2020-09-15 11:45 ` [PATCH v3 3/3] usb: cdns3: Enable workaround for USB2.0 PHY Rx compliance test PHY lockup Roger Quadros
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