From mboxrd@z Thu Jan 1 00:00:00 1970 From: "Andrew F. Davis" Subject: Re: [PATCH v4 4/5] regulator: tps65912: Add regulator driver for the TPS65912 PMIC Date: Wed, 4 Nov 2015 09:35:26 -0600 Message-ID: <563A25BE.90609@ti.com> References: <1443731874-21362-1-git-send-email-afd@ti.com> <1443731874-21362-5-git-send-email-afd@ti.com> <20151022164724.GZ8232@sirena.org.uk> Mime-Version: 1.0 Content-Type: text/plain; charset="windows-1252"; format=flowed Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <20151022164724.GZ8232@sirena.org.uk> Sender: linux-kernel-owner@vger.kernel.org To: Mark Brown Cc: Rob Herring , Pawel Moll , Mark Rutland , Ian Campbell , Kumar Gala , Lee Jones , Alexandre Courbot , Grygorii Strashko , devicetree@vger.kernel.org, linux-kernel@vger.kernel.org List-Id: devicetree@vger.kernel.org On 10/22/2015 11:47 AM, Mark Brown wrote: > On Thu, Oct 01, 2015 at 03:37:53PM -0500, Andrew F. Davis wrote: > >> +static const struct of_device_id tps65912_regulator_of_match_table[] = { >> + { .compatible = "ti,tps65912-regulator", }, >> + { /* sentinel */ }, >> +}; >> +MODULE_DEVICE_TABLE(of, tps65912_regulator_of_match_table); > > Does this IP block exist outside of the tps65912? If not why is it > directly represented in DT? It seems like this is describing how Linux > loads drivers not how the hardware is constructed but DT should describe > the hardware. > Something I just noticed, when I remove this table, module loading stops working, even with 'MODULE_ALIAS("platform:tps65912-regulator");'. It looks like when DT is enabled platform_uevent (drivers/base/platform.c:787) only sends out the OF MODALIAS event then returns, not sending out the platform event, is this desired behavior? If so then I will need this table even though I still create the device and match it on platform name as you suggested.