Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S933121AbbHDJsl (ORCPT ); Tue, 4 Aug 2015 05:48:41 -0400 Received: from mail-wi0-f180.google.com ([209.85.212.180]:35797 "EHLO mail-wi0-f180.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932613AbbHDJsj (ORCPT ); Tue, 4 Aug 2015 05:48:39 -0400 Message-ID: <55C08A73.60505@linaro.org> Date: Tue, 04 Aug 2015 11:48:35 +0200 From: Daniel Lezcano User-Agent: Mozilla/5.0 (X11; Linux i686; rv:31.0) Gecko/20100101 Thunderbird/31.7.0 MIME-Version: 1.0 To: Ralf Baechle CC: Govindraj Raja , linux-kernel@vger.kernel.org, linux-mips@linux-mips.org, devicetree@vger.kernel.org, Thomas Gleixner , Andrew Bresticker , James Hartley , Damien Horsley , James Hogan , Ezequiel Garcia , Ezequiel Garcia Subject: Re: [PATCH v4 0/7] Clocksource changes for Pistachio CPUFreq. References: <1438005618-27003-1-git-send-email-govindraj.raja@imgtec.com> <20150728095128.GA23771@linux-mips.org> In-Reply-To: <20150728095128.GA23771@linux-mips.org> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 2024 Lines: 51 On 07/28/2015 11:51 AM, Ralf Baechle wrote: > Daniel, > > On Mon, Jul 27, 2015 at 03:00:11PM +0100, Govindraj Raja wrote: > >> From: Ezequiel Garcia >> >> The purpose of this patchset is to support CPUFreq on Pistachio SoC. >> However, given Pistachio uses the MIPS GIC clocksource and clockevent drivers >> (clocked from the CPU), adding CPUFreq support needs some work. >> >> This patchset changes the MIPS GIC clockevent driver to update the frequency of >> the per-cpu clockevents using a clock notifier. >> >> Then, we add a clocksource driver for IMG Pistachio SoC, based on the >> general purpose timers. The SoC only provides four timers, so we can't >> use them to implement the four clockevents and the clocksource. >> >> However, we can use one of these timers to provide a clocksource and a >> sched clock. Given the general purpose timers are clocked from the peripheral >> system clock tree, they are not affected by CPU rate changes. >> >> Patches 1 to 3 are just style cleaning and preparation work. >> Patch 4 adds the clockevent frequency update. >> Patches 5 and 6 add the new clocksource driver. >> Patch 7 introduces an option to enable the timer based clocksource on Pistachio. > > if you're happy with this series feel free to add my ack to patch 7/7 > which is the only one that touches arch/mips. > > Alternatively I can carry this in the MIPS tree which would have tbe > benefit of better testing. Ok, go ahead. For the series 1-4: Acked-by: Daniel Lezcano -- Linaro.org │ Open source software for ARM SoCs Follow Linaro: Facebook | Twitter | Blog -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/