linux-kernel - Re: [PATCH 1/3] of: base: add support to get machine compatible string

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Date:   Tue, 22 Nov 2016 17:47:08 +0530
From:   Sekhar Nori <nsekhar@...com>
To:     Sudeep Holla <sudeep.holla@....com>,
        Bartosz Golaszewski <bgolaszewski@...libre.com>
CC:     Kevin Hilman <khilman@...libre.com>,
        Michael Turquette <mturquette@...libre.com>,
        Rob Herring <robh+dt@...nel.org>,
        Frank Rowand <frowand.list@...il.com>,
        Mark Rutland <mark.rutland@....com>,
        Peter Ujfalusi <peter.ujfalusi@...com>,
        Russell King <linux@...linux.org.uk>,
        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>,
        Robin Murphy <robin.murphy@....com>
Subject: Re: [PATCH 1/3] of: base: add support to get machine compatible
 string

On Tuesday 22 November 2016 04:36 PM, Sudeep Holla wrote:
> 
> 
> On 22/11/16 10:57, Bartosz Golaszewski wrote:
>> 2016-11-22 11:53 GMT+01:00 Sudeep Holla <sudeep.holla@....com>:
>>>
>>>
>>> On 22/11/16 10:41, Bartosz Golaszewski wrote:
>>>>
>>>> Add a function allowing to retrieve the compatible string of the root
>>>> node of the device tree.
>>>>
>>>
>>> Rob has queued [1] and it's in -next today. You can reuse that if you
>>> are planning to target this for v4.11 or just use open coding in your
>>> driver for v4.10 and target this move for v4.11 to avoid cross tree
>>> dependencies as I already mentioned in your previous thread.
>>
>> Rob's patch checks the model first - I'm not sure this is the behavior
>> we want here as Sekhar suggested we print the machine compatible.
> 
> IIUC, you are replacing of_flat_dt_get_machine_name and
> of_machine_get_model_name does exactly same. So I don't see any point in
> adding this new function and it's just used for logging purpose.
> Also Sekhar just gave example by using just compatible adding that
> function in the driver itself.
> 
> As Arnd suggested me[1], you should for v4.10 fix it in the driver
> itself to avoid the cross tree dependencies at this point similar to [2]

+1. Bartosz, can you please fix it in the driver for v4.10. If there is
an API available, we can move to it for v4.11

Thanks,
Sekhar