From mboxrd@z Thu Jan 1 00:00:00 1970 From: Dan Murphy Subject: Re: [PATCH v6 1/2] dt-bindings: leds: Add bindings for lm3697 driver Date: Mon, 10 Sep 2018 14:51:06 -0500 Message-ID: <20d9ea9e-bbb8-2240-97cc-615e3fbcef8c@ti.com> References: <20180906135005.6718-1-dmurphy@ti.com> <20180906211617.GB16899@amd> <20180907133228.GA16297@amd> <70f7506c-6a3d-3830-59a4-a246dc6163f7@ti.com> <226b8770-7041-39a4-5a06-6002a7c1225f@gmail.com> <20a814ce-a4c5-0649-6677-6b85a5fd2321@ti.com> <59561e0f-e3b9-7898-a300-90b198ad14e6@gmail.com> Mime-Version: 1.0 Content-Type: text/plain; charset="windows-1252" Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <59561e0f-e3b9-7898-a300-90b198ad14e6@gmail.com> Content-Language: en-US Sender: linux-kernel-owner@vger.kernel.org To: Jacek Anaszewski , Pavel Machek Cc: robh+dt@kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-leds@vger.kernel.org List-Id: devicetree@vger.kernel.org Jacek On 09/10/2018 02:07 PM, Jacek Anaszewski wrote: > Dan, Pavel, > > On 09/10/2018 04:37 PM, Dan Murphy wrote: >> Jacek >> >> On 09/08/2018 02:53 PM, Jacek Anaszewski wrote: >>> Dan, >>> >>> On 09/07/2018 03:52 PM, Dan Murphy wrote: >>> [...] >>>>> >>>>>> And I think Jacek pointed out that the bindings references in this bindings >>>>>> don't even exist. >>>>>> >>>>>> I am thinking we need to deprecate this MFD driver and consolidate these drivers >>>>>> in the LED directory as we indicated before. I did not find any ti-lmu support >>>>>> code. >>>>>> >>>>>> ti-lmu common core code and then the LED children appending the feature differentiation. >>>>> >>>>>> Need some maintainer weigh in here. >>>>> >>>>> Hehe. I'm maintnainer. Fun. >>>> >>>> I know. I want to see if there was any other opinion. Especially for the LED driver. >>>> >>> [...] >>> >>> I have a question - is this lm3697 LED controller a cell of some MFD >>> device? Or is it a self-contained chip? >>> >> >> This is a self contained chip. And the LM3697 only function is a LED driver. >> It does not have any other special functions like the LM363X drivers for GPIO and Regulator support. > > This is an argument for merging it as a standalone LED class driver > then. It is even more justifiable, taking into account uncertainties > related to the proper way of adding the support for it to the existing > MFD driver, whereas the code reuse would be the only advantage of having > thus support in MFD subsystem. > Does the argument carry over to the other devices? Like the LM3632 (part of the ti-lmu) has flash and torch and no other special functions so it would look like the lm3601x family with different register mappings. The LM3631 seems to also be just a LED driver with no extra functionality I could go buy an EVM and put together a driver for that device as well using the lm3601x as reference. Dan -- ------------------ Dan Murphy