Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) client-ip=23.128.96.18;
Subject: Re: [PATCH v8 4/5] usb: ehci: Add new EHCI driver for Broadcom STB
 SoC's
To:     Al Cooper <alcooperx@gmail.com>, linux-kernel@vger.kernel.org
Cc:     Alan Stern <stern@rowland.harvard.edu>,
        Andy Shevchenko <andy.shevchenko@gmail.com>,
        bcm-kernel-feedback-list@broadcom.com, devicetree@vger.kernel.org,
        Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
        Krzysztof Kozlowski <krzk@kernel.org>,
        linux-usb@vger.kernel.org, Mathias Nyman <mathias.nyman@intel.com>,
        Rob Herring <robh+dt@kernel.org>,
        Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>,
        Andy Shevchenko <andriy.shevchenko@linux.intel.com>
References: <20200508211929.39020-1-alcooperx@gmail.com>
 <20200508211929.39020-5-alcooperx@gmail.com>
From:   Florian Fainelli <f.fainelli@gmail.com>
Message-ID: <20f7eed5-4364-3466-05d4-1e350abeac88@gmail.com>
Date:   Fri, 8 May 2020 15:52:21 -0700
User-Agent: Mozilla/5.0 (Windows NT 10.0; WOW64; rv:68.0) Gecko/20100101
 Firefox/68.0 Thunderbird/68.8.0
MIME-Version: 1.0
In-Reply-To: <20200508211929.39020-5-alcooperx@gmail.com>
Content-Type: text/plain; charset=utf-8
Content-Language: en-US
Content-Transfer-Encoding: 7bit
Sender: linux-kernel-owner@vger.kernel.org
Precedence: bulk


On 5/8/2020 2:19 PM, Al Cooper wrote:
> Add a new EHCI driver for Broadcom STB SoC's. A new EHCI driver
> was created instead of adding support to the existing ehci platform
> driver because of the code required to workaround bugs in the EHCI
> controller. The primary workround is for a bug where the Core
> violates the SOF interval between the first two SOFs transmitted after
> resume. This only happens if the resume occurs near the end of a
> microframe. The fix is to intercept the echi-hcd request to complete
> RESUME and align it to the start of the next microframe.
> 
> Signed-off-by: Al Cooper <alcooperx@gmail.com>
> Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>

Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
-- 
Florian