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Received: from shell.armlinux.org.uk ([2002:4e20:1eda:1:5054:ff:fe00:4ec]:46746) by pandora.armlinux.org.uk with esmtpsa (TLSv1.2:ECDHE-RSA-AES256-GCM-SHA384:256) (Exim 4.90_1) (envelope-from ) id 1jP5hc-0004hW-KW; Thu, 16 Apr 2020 15:41:16 +0100 Received: from linux by shell.armlinux.org.uk with local (Exim 4.92) (envelope-from ) id 1jP5ha-0001y9-6X; Thu, 16 Apr 2020 15:41:14 +0100 Date: Thu, 16 Apr 2020 15:41:14 +0100 From: Russell King - ARM Linux admin To: Andrew Lunn Subject: Re: [PATCH RFC 0/6] PWM fan support on Clearfog gt8k Message-ID: <20200416144114.GI25745@shell.armlinux.org.uk> References: <20200329104549.GX25745@shell.armlinux.org.uk> <20200416135039.GL657811@lunn.ch> <20200416142944.GH25745@shell.armlinux.org.uk> <20200416143645.GN657811@lunn.ch> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <20200416143645.GN657811@lunn.ch> User-Agent: Mutt/1.10.1 (2018-07-13) X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20200416_074129_020976_C14546D3 X-CRM114-Status: GOOD ( 12.53 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Mark Rutland , "open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS" , Jason Cooper , "open list:GPIO SUBSYSTEM" , Linus Walleij , linux-pwm@vger.kernel.org, Bartosz Golaszewski , Rob Herring , Thierry Reding , Uwe Kleine-Konig , Gregory Clement , Linux ARM , Sebastian Hesselbarth Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+infradead-linux-arm-kernel=archiver.kernel.org@lists.infradead.org On Thu, Apr 16, 2020 at 04:36:45PM +0200, Andrew Lunn wrote: > > 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. That's easy - the cooling maps are an entirely separate patch. However, one thing we need to be careful of is whether someone has a PWM fan plugged in, and whether not having any cooling maps results in the fan stopping, as I think PWMs default to being disabled on initialisation. That could be a SoC-killing combination. -- RMK's Patch system: https://www.armlinux.org.uk/developer/patches/ FTTC broadband for 0.8mile line in suburbia: sync at 10.2Mbps down 587kbps up _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel