From mboxrd@z Thu Jan 1 00:00:00 1970 From: mark.rutland@arm.com (Mark Rutland) Date: Thu, 3 Nov 2016 15:43:37 +0000 Subject: [RFC PATCH 0/3] ARM64: meson-gxbb: Add support for system suspend In-Reply-To: <20161103152545.GB25852@remoulade> References: <1478183365-23708-1-git-send-email-narmstrong@baylibre.com> <20161103152545.GB25852@remoulade> Message-ID: <20161103154336.GE25852@remoulade> To: linus-amlogic@lists.infradead.org List-Id: linus-amlogic.lists.infradead.org Urrgh, I accidentally sent this when trying to save this to my drafts folder; sorry for the half-finished reply. On Thu, Nov 03, 2016 at 03:25:46PM +0000, Mark Rutland wrote: > On Thu, Nov 03, 2016 at 03:29:22PM +0100, Neil Armstrong wrote: > > Thie patchset is a very experiment patchset to support the System Suspend > > feature of the Amlogic Meson GX SoCs. > > > > These SoCs implements system suspend using a non-standard PSCI CPU_SUSPEND > > parameter to enter system suspend. > > Note that this RFC is here to seek a better way to handle these platform > > specific features. One of the reasons that we want PSCI is that it is a standard interface across platforms. Generally, we do not want platform-specific interfaces. In this case, PSCI 1.0+ has SYSTEM_SUSPEND for this purpose. If PSCI is lacking functionality that vendors want, they should speak to ARM w.r.t. the PSCI specification -- it can be extended with new functionality as has already happened with PSCI 0.2 and PSCI 1.0. Thanks, Mark. From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Sender: rtc-linux@googlegroups.com Received: from foss.arm.com (foss.arm.com. [217.140.101.70]) by gmr-mx.google.com with ESMTP id p14si1287836pfl.0.2016.11.03.08.43.49 for ; Thu, 03 Nov 2016 08:43:49 -0700 (PDT) Date: Thu, 3 Nov 2016 15:43:37 +0000 From: Mark Rutland To: Neil Armstrong Cc: a.zummo@towertech.it, rtc-linux@googlegroups.com, khilman@baylibre.com, linux-kernel@vger.kernel.org, alexandre.belloni@free-electrons.com, carlo@caione.org, linux-amlogic@lists.infradead.org, linux-arm-kernel@lists.infradead.org Subject: [rtc-linux] Re: [RFC PATCH 0/3] ARM64: meson-gxbb: Add support for system suspend Message-ID: <20161103154336.GE25852@remoulade> References: <1478183365-23708-1-git-send-email-narmstrong@baylibre.com> <20161103152545.GB25852@remoulade> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 In-Reply-To: <20161103152545.GB25852@remoulade> Reply-To: rtc-linux@googlegroups.com List-ID: List-Post: , List-Help: , List-Archive: , List-Unsubscribe: , Urrgh, I accidentally sent this when trying to save this to my drafts folder; sorry for the half-finished reply. On Thu, Nov 03, 2016 at 03:25:46PM +0000, Mark Rutland wrote: > On Thu, Nov 03, 2016 at 03:29:22PM +0100, Neil Armstrong wrote: > > Thie patchset is a very experiment patchset to support the System Suspend > > feature of the Amlogic Meson GX SoCs. > > > > These SoCs implements system suspend using a non-standard PSCI CPU_SUSPEND > > parameter to enter system suspend. > > Note that this RFC is here to seek a better way to handle these platform > > specific features. One of the reasons that we want PSCI is that it is a standard interface across platforms. Generally, we do not want platform-specific interfaces. In this case, PSCI 1.0+ has SYSTEM_SUSPEND for this purpose. If PSCI is lacking functionality that vendors want, they should speak to ARM w.r.t. the PSCI specification -- it can be extended with new functionality as has already happened with PSCI 0.2 and PSCI 1.0. Thanks, Mark. -- You received this message because you are subscribed to "rtc-linux". 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From mboxrd@z Thu Jan 1 00:00:00 1970 From: mark.rutland@arm.com (Mark Rutland) Date: Thu, 3 Nov 2016 15:43:37 +0000 Subject: [RFC PATCH 0/3] ARM64: meson-gxbb: Add support for system suspend In-Reply-To: <20161103152545.GB25852@remoulade> References: <1478183365-23708-1-git-send-email-narmstrong@baylibre.com> <20161103152545.GB25852@remoulade> Message-ID: <20161103154336.GE25852@remoulade> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org Urrgh, I accidentally sent this when trying to save this to my drafts folder; sorry for the half-finished reply. On Thu, Nov 03, 2016 at 03:25:46PM +0000, Mark Rutland wrote: > On Thu, Nov 03, 2016 at 03:29:22PM +0100, Neil Armstrong wrote: > > Thie patchset is a very experiment patchset to support the System Suspend > > feature of the Amlogic Meson GX SoCs. > > > > These SoCs implements system suspend using a non-standard PSCI CPU_SUSPEND > > parameter to enter system suspend. > > Note that this RFC is here to seek a better way to handle these platform > > specific features. One of the reasons that we want PSCI is that it is a standard interface across platforms. Generally, we do not want platform-specific interfaces. In this case, PSCI 1.0+ has SYSTEM_SUSPEND for this purpose. If PSCI is lacking functionality that vendors want, they should speak to ARM w.r.t. the PSCI specification -- it can be extended with new functionality as has already happened with PSCI 0.2 and PSCI 1.0. Thanks, Mark. From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1758449AbcKCPnw (ORCPT ); Thu, 3 Nov 2016 11:43:52 -0400 Received: from foss.arm.com ([217.140.101.70]:40528 "EHLO foss.arm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1758226AbcKCPnu (ORCPT ); Thu, 3 Nov 2016 11:43:50 -0400 Date: Thu, 3 Nov 2016 15:43:37 +0000 From: Mark Rutland To: Neil Armstrong Cc: a.zummo@towertech.it, rtc-linux@googlegroups.com, khilman@baylibre.com, linux-kernel@vger.kernel.org, alexandre.belloni@free-electrons.com, carlo@caione.org, linux-amlogic@lists.infradead.org, linux-arm-kernel@lists.infradead.org Subject: Re: [RFC PATCH 0/3] ARM64: meson-gxbb: Add support for system suspend Message-ID: <20161103154336.GE25852@remoulade> References: <1478183365-23708-1-git-send-email-narmstrong@baylibre.com> <20161103152545.GB25852@remoulade> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20161103152545.GB25852@remoulade> User-Agent: Mutt/1.5.24 (2015-08-30) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Urrgh, I accidentally sent this when trying to save this to my drafts folder; sorry for the half-finished reply. On Thu, Nov 03, 2016 at 03:25:46PM +0000, Mark Rutland wrote: > On Thu, Nov 03, 2016 at 03:29:22PM +0100, Neil Armstrong wrote: > > Thie patchset is a very experiment patchset to support the System Suspend > > feature of the Amlogic Meson GX SoCs. > > > > These SoCs implements system suspend using a non-standard PSCI CPU_SUSPEND > > parameter to enter system suspend. > > Note that this RFC is here to seek a better way to handle these platform > > specific features. One of the reasons that we want PSCI is that it is a standard interface across platforms. Generally, we do not want platform-specific interfaces. In this case, PSCI 1.0+ has SYSTEM_SUSPEND for this purpose. If PSCI is lacking functionality that vendors want, they should speak to ARM w.r.t. the PSCI specification -- it can be extended with new functionality as has already happened with PSCI 0.2 and PSCI 1.0. Thanks, Mark.