From mboxrd@z Thu Jan 1 00:00:00 1970 From: Tomasz Figa Subject: Re: PWM on Hardkernel ODROID-XU board Date: Tue, 05 Aug 2014 22:58:56 +0200 Message-ID: <53E14590.5090704@gmail.com> References: Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: QUOTED-PRINTABLE Return-path: Received: from mail-wg0-f42.google.com ([74.125.82.42]:34464 "EHLO mail-wg0-f42.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753603AbaHEU7B (ORCPT ); Tue, 5 Aug 2014 16:59:01 -0400 Received: by mail-wg0-f42.google.com with SMTP id l18so1605182wgh.25 for ; Tue, 05 Aug 2014 13:59:00 -0700 (PDT) In-Reply-To: Sender: linux-samsung-soc-owner@vger.kernel.org List-Id: linux-samsung-soc@vger.kernel.org To: Gachet Daniel Cc: Tomasz Figa , Tarek Dakhran , "linux-samsung-soc@vger.kernel.org" , Humberto Silva Naves , Mauro Ribeiro Hi Daniel, On 05.08.2014 22:48, Gachet Daniel wrote: > Hi Thomasz, >=20 > I=E2=80=99m currently trying to use the Hardkernel ODROID-XU board un= der Linux version 3.14 (hard kernel sources =E2=80=9Codroid-3.14.y-lina= ro=E2=80=9D. > I=E2=80=99m almost happy with that version, but I still have a proble= m by migrating the =E2=80=9Codroidxu_fan.c=E2=80=9D module from the 3.4= version. > I can register to the samsung pwm module (pam_request). >=20 > Could you tell me what are the right entry for the flattened device t= ree for this board ? Unfortunately I don't know too much about this board or hardkernel sources. I mostly work with mainline kernel. In general, you probably need a node for the PWM block of the SoC and a node for the PWM fan, but I don't have any details for you at the momen= t. I'd say you should have posted this to linux-samsung-soc mailing list for bigger chance of getting more information. For your convenience, I'= m adding them and several people that might be able to give some input on this. By the way, you might be interested in pwm-fan driver recently merged for Linux 3.17: https://lkml.org/lkml/2014/7/16/426 . Best regards, Tomasz