Re: [PATCH] scripts/dtc: dt_to_config - report kernel config options for a devicetree

[Rob Herring]

On Fri, Apr 29, 2016 at 1:39 AM, Gaurav Minocha
<gaurav.minocha.os@xxxxxxxxx> wrote:
> On Thu, Apr 28, 2016 at 3:32 PM, Rob Herring <robh+dt@xxxxxxxxxx> wrote:
>> On Thu, Apr 28, 2016 at 4:46 PM, Frank Rowand <frowand.list@xxxxxxxxx> wrote:
>>> From: Frank Rowand <frank.rowand@xxxxxxxxxxx>
>>>
>>> Determining which kernel config options need to be enabled for a
>>> given devicetree can be a painful process.  Create a new tool to
>>> find the drivers that may match a devicetree node compatible,
>>> find the kernel config options that enable the driver, and
>>> optionally report whether the kernel config option is enabled.
>>
>> I would find this more useful to output a config fragment with all the
>> options enabled. The hard part there is enabling the options a given
>> option is dependent on which I don't think kbuild takes care of.
>
> Do you mean to generate something like .config? If yes, then IMO it would
> not be a correct configuration file.

No, only a config fragment which is just some subset of config
options. Then you could have a generic defconfig plus the fragment for
a platform to get a working setup.

Rob