From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-0.6 required=3.0 tests=DKIM_INVALID,DKIM_SIGNED, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 5B310C2BB55 for ; Thu, 16 Apr 2020 14:37:01 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 34A5D21927 for ; Thu, 16 Apr 2020 14:37:01 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (1024-bit key) header.d=lunn.ch header.i=@lunn.ch header.b="rWeuuWiF" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2404559AbgDPOg7 (ORCPT ); Thu, 16 Apr 2020 10:36:59 -0400 Received: from vps0.lunn.ch ([185.16.172.187]:41770 "EHLO vps0.lunn.ch" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728280AbgDPOg6 (ORCPT ); Thu, 16 Apr 2020 10:36:58 -0400 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lunn.ch; s=20171124; h=In-Reply-To:Content-Type:MIME-Version:References:Message-ID: Subject:Cc:To:From:Date:Sender:Reply-To:Content-Transfer-Encoding:Content-ID: Content-Description:Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc :Resent-Message-ID:List-Id:List-Help:List-Unsubscribe:List-Subscribe: List-Post:List-Owner:List-Archive; bh=/8bvKF2o1FMLSPyNiMKCVFF5p7ETHhZaS3xirlYJxCo=; b=rWeuuWiFEE5MOHCmJEfSzIm00J facqd23NiAseSzFUdRTyme4ieALF1sczwdo03+DZJ1EipaG6tzGYLacdpRUWp7u5z+1Dxgns745Sp /mRkpWyc2X6/TPjS3hTbpPWFd40D4ok56TZG7ppI9yK1zrTiYhU6i9DgaEnF1r1qQyq0=; Received: from andrew by vps0.lunn.ch with local (Exim 4.93) (envelope-from ) id 1jP5dF-0035Nx-9d; Thu, 16 Apr 2020 16:36:45 +0200 Date: Thu, 16 Apr 2020 16:36:45 +0200 From: Andrew Lunn To: Russell King - ARM Linux admin Cc: Linus Walleij , Bartosz Golaszewski , "open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS" , Gregory Clement , Jason Cooper , Linux ARM , "open list:GPIO SUBSYSTEM" , linux-pwm@vger.kernel.org, Mark Rutland , Rob Herring , Sebastian Hesselbarth , Thierry Reding , Uwe Kleine-Konig Subject: Re: [PATCH RFC 0/6] PWM fan support on Clearfog gt8k Message-ID: <20200416143645.GN657811@lunn.ch> References: <20200329104549.GX25745@shell.armlinux.org.uk> <20200416135039.GL657811@lunn.ch> <20200416142944.GH25745@shell.armlinux.org.uk> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20200416142944.GH25745@shell.armlinux.org.uk> Sender: linux-gpio-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-gpio@vger.kernel.org > I said in the cover message "The cooling maps are experimental". > They work reasonably well for me with the fan I have (a noctua fan) > but other people may find them to be problematical, so one of the > reasons for sending it as RFC is to get people to test and see how > well it works. Hi Russell Maybe split the PWM parts from the cooling maps? I don't see any reason not to merge the PWM parts. Maybe sometime later I might take a closer look at the maps. I have a wrt1900ac, which is Armada XP based. It has a fan on a GPIO pin. I currently have a userspace daemon controlling the fan based on hwmon device data. Getting the kernel to do it all would be nice. Andrew