From mboxrd@z Thu Jan 1 00:00:00 1970 From: Marc Zyngier Subject: Re: [PATCH v2 1/2] clocksource: arm_arch_timer: Don't assume clock runs in suspend Date: Thu, 13 Oct 2016 11:21:40 +0100 Message-ID: <20161013112140.6f71fec7@arm.com> References: <1475604730-140264-1-git-send-email-briannorris@chromium.org> Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <1475604730-140264-1-git-send-email-briannorris@chromium.org> Sender: linux-kernel-owner@vger.kernel.org To: Brian Norris Cc: Daniel Lezcano , Thomas Gleixner , Heiko Stuebner , Mark Rutland , Stephen Boyd , linux-rockchip@lists.infradead.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, Douglas Anderson , Caesar Wang , Rob Herring , Catalin Marinas , Will Deacon List-Id: linux-rockchip.vger.kernel.org On Tue, 4 Oct 2016 11:12:09 -0700 Brian Norris wrote: > The ARM ARM specifies that the system counter "must be implemented in an > always-on power domain," and so we try to use the counter as a source of > timekeeping across suspend/resume. Unfortunately, some SoCs (e.g., > Rockchip's RK3399) do not keep the counter ticking properly when > switched from their high-power clock to the lower-power clock used in > system suspend. Support this quirk by adding a new device tree property. > > Signed-off-by: Brian Norris Acked-by: Marc Zyngier M. -- Jazz is not dead. It just smells funny.