linux-kernel - Re: [PATCH v2] Since am437x have the same clock structure with am335x [1][2], reuse the code from Tony Lindgren's patch [3] to fix dcan probe failed on am437x platform.

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Date:   Tue, 14 Jul 2020 15:36:56 +1000
From:   Stephen Rothwell <sfr@...b.auug.org.au>
To:     dillon min <dillon.minfei@...il.com>
Cc:     Benoit Cousson <bcousson@...libre.com>, tony@...mide.com,
        Rob Herring <robh+dt@...nel.org>, linux-omap@...r.kernel.org,
        "open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS" 
        <devicetree@...r.kernel.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v2] Since am437x have the same clock structure with
 am335x [1][2], reuse the code from Tony Lindgren's patch [3] to fix dcan
 probe failed on am437x platform.

Hi Dillon,

On Tue, 14 Jul 2020 13:21:07 +0800 dillon min <dillon.minfei@...il.com> wrote:
>
> Thanks, how about the below commit message.
> 
> Subject: [PATCH v4] Fix dcan driver probe failed on am437x platform
> 
> Got following d_can probe errors with kernel 5.8-rc1 on am437x
> 
> [   10.730822] CAN device driver interface
> Starting Wait for Network to be Configured...
> [  OK  ] Reached target Network.
> [   10.787363] c_can_platform 481cc000.can: probe failed
> [   10.792484] c_can_platform: probe of 481cc000.can failed with
> error -2
> [   10.799457] c_can_platform 481d0000.can: probe failed
> [   10.804617] c_can_platform: probe of 481d0000.can failed with
> error -2
> 
> actually, Tony has fixed this issue on am335x with the patch [3]
> 
> Since am437x has the same clock structure with am335x
> [1][2], so reuse the code from Tony Lindgren's patch [3] to fix it.
> 
> 
> [1]: https://www.ti.com/lit/pdf/spruh73 Chapter-23, Figure 23-1. DCAN
> Integration
> [2]: https://www.ti.com/lit/pdf/spruhl7 Chapter-25, Figure 25-1. DCAN
> Integration
> [3]: commit 516f1117d0fb ("ARM: dts: Configure osc clock for d_can on am335x")
> 
> Fixes: 1a5cd7c23cc5 ("bus: ti-sysc: Enable all clocks directly during
> init to read revision")
> Signed-off-by: dillon min <dillon.minfei@...il.com>
> ---
> 
> Hi Stephen,
> 
> This changes correct commit messages based on your reviewing.
> make Fixes tags to oneline.
> make all commit message tags at the end of commit message
> make Fixes tags before Signed-off-by line.
> add probe failed log to commit message.

Apart from the line wrapping, that looks better.  I assume that your
email client (looks like Gmail web gui) is wrapping the lines, please
see if you can stop it doing that (see the section on Gmail in
Documentation/process/email-clients.rst).

-- 
Cheers,
Stephen Rothwell

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