From mboxrd@z Thu Jan 1 00:00:00 1970 From: Heiko Stuebner Subject: Re: [PATCH v3 3/4] arm64: dts: rockchip: describe Gru/Kevin OPPs + CPU regulators Date: Wed, 22 Mar 2017 13:00:03 +0100 Message-ID: <2038128.kuAi12yfFv@phil> References: <20170320235344.126298-1-briannorris@chromium.org> <20170320235344.126298-4-briannorris@chromium.org> Mime-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Return-path: In-Reply-To: <20170320235344.126298-4-briannorris-F7+t8E8rja9g9hUCZPvPmw@public.gmane.org> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "Linux-rockchip" Errors-To: linux-rockchip-bounces+glpar-linux-rockchip=m.gmane.org-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org To: Brian Norris Cc: devicetree-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, Doug Anderson , linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, linux-rockchip-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org, Rob Herring , Chris Zhong , Stephen Barber , linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org, Caesar Wang List-Id: linux-rockchip.vger.kernel.org Am Montag, 20. M=E4rz 2017, 16:53:43 CET schrieb Brian Norris: > Used for Gru/Kevin only, as they're the only ones which have a described > CPU regulator. Also, I'm not sure we've validated this table non-Gru > boards. > = > At the same time, partially describe PWM regulators for Gru, so cpufreq > doesn't think it can crank up the clock speed without changing the > voltage. However, we don't yet have the DT bindings to fully describe > the Over Voltage Protection (OVP) circuits on these boards. Without that > description, we might end up changing the voltage too much, too fast. > = > Add the pwm-regulator descriptions and associate the CPU OPPs, but leave > them disabled. > = > Signed-off-by: Brian Norris applied for 4.12 with Enric's Tested-tag after some small reordering of nod= es/ properties. Heiko From mboxrd@z Thu Jan 1 00:00:00 1970 From: heiko@sntech.de (Heiko Stuebner) Date: Wed, 22 Mar 2017 13:00:03 +0100 Subject: [PATCH v3 3/4] arm64: dts: rockchip: describe Gru/Kevin OPPs + CPU regulators In-Reply-To: <20170320235344.126298-4-briannorris@chromium.org> References: <20170320235344.126298-1-briannorris@chromium.org> <20170320235344.126298-4-briannorris@chromium.org> Message-ID: <2038128.kuAi12yfFv@phil> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org Am Montag, 20. M?rz 2017, 16:53:43 CET schrieb Brian Norris: > Used for Gru/Kevin only, as they're the only ones which have a described > CPU regulator. Also, I'm not sure we've validated this table non-Gru > boards. > > At the same time, partially describe PWM regulators for Gru, so cpufreq > doesn't think it can crank up the clock speed without changing the > voltage. However, we don't yet have the DT bindings to fully describe > the Over Voltage Protection (OVP) circuits on these boards. Without that > description, we might end up changing the voltage too much, too fast. > > Add the pwm-regulator descriptions and associate the CPU OPPs, but leave > them disabled. > > Signed-off-by: Brian Norris applied for 4.12 with Enric's Tested-tag after some small reordering of nodes/ properties. Heiko From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S934383AbdCVMBS convert rfc822-to-8bit (ORCPT ); Wed, 22 Mar 2017 08:01:18 -0400 Received: from gloria.sntech.de ([95.129.55.99]:39310 "EHLO gloria.sntech.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S934100AbdCVMAx (ORCPT ); Wed, 22 Mar 2017 08:00:53 -0400 From: Heiko Stuebner To: Brian Norris Cc: linux-rockchip@lists.infradead.org, linux-kernel@vger.kernel.org, Caesar Wang , Doug Anderson , devicetree@vger.kernel.org, Rob Herring , Stephen Barber , linux-arm-kernel@lists.infradead.org, Chris Zhong Subject: Re: [PATCH v3 3/4] arm64: dts: rockchip: describe Gru/Kevin OPPs + CPU regulators Date: Wed, 22 Mar 2017 13:00:03 +0100 Message-ID: <2038128.kuAi12yfFv@phil> User-Agent: KMail/5.2.3 (Linux/4.9.0-2-amd64; KDE/5.28.0; x86_64; ; ) In-Reply-To: <20170320235344.126298-4-briannorris@chromium.org> References: <20170320235344.126298-1-briannorris@chromium.org> <20170320235344.126298-4-briannorris@chromium.org> MIME-Version: 1.0 Content-Transfer-Encoding: 8BIT Content-Type: text/plain; charset="iso-8859-1" Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Am Montag, 20. März 2017, 16:53:43 CET schrieb Brian Norris: > Used for Gru/Kevin only, as they're the only ones which have a described > CPU regulator. Also, I'm not sure we've validated this table non-Gru > boards. > > At the same time, partially describe PWM regulators for Gru, so cpufreq > doesn't think it can crank up the clock speed without changing the > voltage. However, we don't yet have the DT bindings to fully describe > the Over Voltage Protection (OVP) circuits on these boards. Without that > description, we might end up changing the voltage too much, too fast. > > Add the pwm-regulator descriptions and associate the CPU OPPs, but leave > them disabled. > > Signed-off-by: Brian Norris applied for 4.12 with Enric's Tested-tag after some small reordering of nodes/ properties. Heiko