From: Ray Jui <ray.jui@broadcom.com>
To: Florian Fainelli <f.fainelli@gmail.com>,
Arnd Bergmann <arnd@kernel.org>,
Bharat Gooty <bharat.gooty@broadcom.com>
Cc: devicetree <devicetree@vger.kernel.org>,
linux-kernel <linux-kernel@vger.kernel.org>,
Arnd Bergmann <arnd@arndb.de>,
Scott Branden <sbranden@broadcom.com>,
Ray Jui <rjui@broadcom.com>,
linux-arm-msm <linux-arm-msm@vger.kernel.org>,
Andy Gross <agross@kernel.org>,
Bjorn Andersson <bjorn.andersson@linaro.org>,
Rob Herring <robh+dt@kernel.org>,
bcm-kernel-feedback-list <bcm-kernel-feedback-list@broadcom.com>,
Zhen Lei <thunder.leizhen@huawei.com>,
linux-arm-kernel <linux-arm-kernel@lists.infradead.org>
Subject: Re: [PATCH v2 1/2] arm64: dts: broadcom: clear the warnings caused by empty dma-ranges
Date: Wed, 13 Jan 2021 09:45:54 -0800 [thread overview]
Message-ID: <6ed78167-44fe-7b6e-e442-adb70b0c0bb5@broadcom.com> (raw)
In-Reply-To: <d97a0c4c-15b5-272a-adc5-152c41a6a212@gmail.com>
[-- Attachment #1: Type: text/plain, Size: 1574 bytes --]
Hi Bharat,
On 1/13/2021 8:55 AM, Florian Fainelli wrote:
> On 1/13/21 12:05 AM, Arnd Bergmann wrote:
>> On Wed, Jan 13, 2021 at 4:42 AM Bharat Gooty <bharat.gooty@broadcom.com> wrote:
>>>
>>> Hello Ray,
>>>
>>> I had cross checked with Design and integration team.
>>> Yes we can set the "dma-rages" to 40 bit DMA ranges. Tested, it is working.
>>>
>>> -----Original Message-----
>>> From: Ray Jui <ray.jui@broadcom.com>
>>>
>>> Bharat can correct me if I'm wrong, but I don't think we have a bug in
>>> the USB DMA engine that causes it can only address 32-bit. I believe we
>>> can set dma-ranges size to 40-bit here.
>>>
>>> The dma-range property is though required to be specified, instead of
>>> leaving it as empty, with the use of IOMMU. That seems to be a v5.10
>>> specific behavior as I described below.
>>
>> Ok, thanks for double-checking. I had misremembered the version
>> that actually went into the as the one that used 64-bit dma-ranges
>> and thought that was what broke, rather than the version without
>> dma-ranges.
>>
>> If any of you want to send me that bugfix directly, or have Florian
>> pick it up through his fixes branch, I'll make sure we get it into v5.11.
>
> I have another change for v5.11 that I would like to send, so please do
> send a bugfix when you get a chance and we can lump those two changes
> together, say, by the end of the week?
>
Would you be able to help to send this out by the end of this week as
Florian advised? Your previous patch with the extension to 40-bit in
size plus a fixes-by tag should do!
Thanks!
Ray
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next prev parent reply other threads:[~2021-01-13 17:47 UTC|newest]
Thread overview: 26+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-10-16 9:08 [PATCH v2 0/2] eliminate two common errors reported by any yaml on arm64 Zhen Lei
2020-10-16 9:08 ` [PATCH v2 1/2] arm64: dts: broadcom: clear the warnings caused by empty dma-ranges Zhen Lei
[not found] ` <CAK8P3a2TSmsNSi-XFpT6AQ3jvVxJ1AW7Uf5tAo477wtwXZwUzg@mail.gmail.com>
2020-10-16 16:48 ` Florian Fainelli
[not found] ` <CAK8P3a13ywHh7igdfDSPQz9Bw8YAnKWFLKARkk2NL5u6=6yb=w@mail.gmail.com>
2020-10-16 19:27 ` Florian Fainelli
2020-10-18 2:10 ` Leizhen (ThunderTown)
[not found] ` <CAK8P3a335TT1+bdHqB=FetPanXXfGv3dC7ZCkx+w+F3j00kj5A@mail.gmail.com>
2020-10-26 2:21 ` Leizhen (ThunderTown)
2020-11-09 6:18 ` Leizhen (ThunderTown)
2020-11-09 17:28 ` Florian Fainelli
2020-11-09 17:56 ` Arnd Bergmann
2020-11-09 18:00 ` Florian Fainelli
2020-11-28 4:53 ` Florian Fainelli
2020-11-28 9:58 ` Arnd Bergmann
2020-12-14 19:09 ` Ray Jui
2020-12-14 19:46 ` Arnd Bergmann
2020-12-15 15:40 ` Florian Fainelli
[not found] ` <CACvutz9v+TBUbrCo3X-u5ebbs04nR0y0yQN3qWfSAyZVy9RM2g@mail.gmail.com>
2020-12-15 15:41 ` Florian Fainelli
2020-12-15 15:49 ` Arnd Bergmann
2021-01-12 18:28 ` Ray Jui
2021-01-12 20:40 ` Arnd Bergmann
2021-01-12 20:57 ` Ray Jui
2021-01-13 3:42 ` Bharat Gooty
2021-01-13 8:05 ` Arnd Bergmann
2021-01-13 16:55 ` Florian Fainelli
2021-01-13 17:45 ` Ray Jui [this message]
2020-10-16 9:08 ` [PATCH v2 2/2] arm64: dts: qcom: " Zhen Lei
2020-11-11 4:44 ` Bjorn Andersson
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