linux-kernel - Re: [PATCH v2 1/5] ARM: memory: da8xx-ddrctl: new driver

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Message-ID: <5835DE87.6060208@gmail.com>
Date:   Wed, 23 Nov 2016 10:23:03 -0800
From:   Frank Rowand <frowand.list@...il.com>
To:     Sekhar Nori <nsekhar@...com>,
        Bartosz Golaszewski <bgolaszewski@...libre.com>,
        Kevin Hilman <khilman@...libre.com>,
        Michael Turquette <mturquette@...libre.com>,
        Rob Herring <robh+dt@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        Peter Ujfalusi <peter.ujfalusi@...com>,
        Russell King <linux@...linux.org.uk>
Cc:     LKML <linux-kernel@...r.kernel.org>,
        arm-soc <linux-arm-kernel@...ts.infradead.org>,
        linux-drm <dri-devel@...ts.freedesktop.org>,
        linux-devicetree <devicetree@...r.kernel.org>,
        Jyri Sarha <jsarha@...com>,
        Tomi Valkeinen <tomi.valkeinen@...com>,
        David Airlie <airlied@...ux.ie>,
        Laurent Pinchart <laurent.pinchart@...asonboard.com>,
        Sudeep Holla <sudeep.holla@....com>
Subject: Re: [PATCH v2 1/5] ARM: memory: da8xx-ddrctl: new driver

On 11/23/16 10:13, Frank Rowand wrote:
> On 11/22/16 21:55, Sekhar Nori wrote:
>> On Tuesday 22 November 2016 11:51 PM, Frank Rowand wrote:
>>> Please note that the compatible property might contain several strings, not just
>>> a single string.
>>
>> So I guess the best thing to do is to use
>> of_property_read_string_index() and print the sting at index 0.
>>
>> Thanks,
>> Sekhar
> 
> If you want to print just one compatible value, you could use that method.
> 
> To give all of the information needed to understand the problem, the error
> message would need to include all of the strings contained in the compatible
> property and all of the .board values in the da8xx_ddrctl_board_confs[] array
> (currently only one entry, but coded to allow additional entries in the
> future).
> 
> It is hard to justify an error message that complex.
> 
> I would just print an error that no match was found.
> 
> -Frank

I just needed to read some more emails.  I see this approach was taken
in the "[PATCH v4 0/2] da8xx: fix section mismatch in new drivers"
series.

-Frank