Re: [PATCH v2 0/5] Refactor Qualcomm RPM regulator to single platform_device

From: Bjorn Andersson
Date: Mon Apr 06 2015 - 13:11:27 EST

On Mon, Apr 6, 2015 at 9:51 AM, Mark Brown <broonie@xxxxxxxxxx> wrote:
> On Thu, Apr 02, 2015 at 03:57:16PM -0700, Stephen Boyd wrote:
>> On 04/02/15 15:26, Mark Brown wrote:
>> > Guenther sent a patch fixing that a while back.
>> This one?
> Yes.
>> regulator: Ensure unique regulator debugfs directory names
>> Ok. Seems to be only in next. I'm not sure it will work though because
>> in this case the parent device is the same for both regulators on
>> different PMICs that the RPM is controlling. I could be wrong though
>> because I haven't tested it.
> I'd say that if the driver is doing this then the driver is buggy - the
> user should be able to distinguish between two regulators appearing for
> the same device. Either the RPM should create dummy devices for the two
> PMICs or something should insert the PMIC name into the regulator name
> somewhere along the line (perhaps in the static data).

Sorry, I spoke before I had coffee...

The RPM will instantiate one regulator device per pmic and parent will
hence differ between the various regulator instances.
So with Guenter's patch this does indeed work.

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