From mboxrd@z Thu Jan 1 00:00:00 1970 From: Stephen Boyd Subject: Re: [PATCH v4 3/4] clk: Hi6220: add stub clock driver Date: Wed, 12 Aug 2015 01:33:36 -0700 Message-ID: <20150812083336.GC13623@codeaurora.org> References: <1438673249-6051-1-git-send-email-leo.yan@linaro.org> <1438673249-6051-4-git-send-email-leo.yan@linaro.org> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Return-path: Content-Disposition: inline In-Reply-To: <1438673249-6051-4-git-send-email-leo.yan@linaro.org> Sender: linux-kernel-owner@vger.kernel.org To: Leo Yan Cc: Rob Herring , Pawel Moll , Mark Rutland , Ian Campbell , Kumar Gala , Catalin Marinas , Will Deacon , Michael Turquette , Wei Xu , Haojian Zhuang , Bintian Wang , devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-clk@vger.kernel.org, Guodong Xu , Jian Zhang , Zhenwei Wang , Haoju Mo , Dan Zhao , sunzhaosheng@hisilicon.com, victor.lixin@hisilicon.com List-Id: devicetree@vger.kernel.org On 08/04, Leo Yan wrote: > On Hi6220, there have some clocks which can use mailbox channel to send > messages to power controller to change frequency; this includes CPU, GPU > and DDR clocks. > > For dynamic frequency scaling, firstly need write the frequency value to > SRAM region, and then send message to mailbox to trigger power controller > to handle this requirement. This driver will use syscon APIs to pass SRAM > memory region and use common mailbox APIs for channels accessing. > > This init driver will support cpu frequency change firstly. > > Signed-off-by: Leo Yan > --- Applied to clk-next -- Qualcomm Innovation Center, Inc. is a member of Code Aurora Forum, a Linux Foundation Collaborative Project