From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932506AbcL0Vpy (ORCPT ); Tue, 27 Dec 2016 16:45:54 -0500 Received: from smtp.codeaurora.org ([198.145.29.96]:38052 "EHLO smtp.codeaurora.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752294AbcL0Vpr (ORCPT ); Tue, 27 Dec 2016 16:45:47 -0500 DMARC-Filter: OpenDMARC Filter v1.3.1 smtp.codeaurora.org B8B7D61180 Authentication-Results: pdx-caf-mail.web.codeaurora.org; dmarc=none header.from=codeaurora.org Authentication-Results: pdx-caf-mail.web.codeaurora.org; spf=pass smtp.mailfrom=sboyd@codeaurora.org Date: Tue, 27 Dec 2016 13:45:44 -0800 From: Stephen Boyd To: Abhishek Sahu Cc: mturquette@baylibre.com, andy.gross@linaro.org, david.brown@linaro.org, varada@codeaurora.org, snlakshm@codeaurora.org, pradeepb@codeaurora.org, linux-arm-msm@vger.kernel.org, linux-soc@vger.kernel.org, linux-clk@vger.kernel.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH v5] clk: qcom: ipq4019: Add the cpu clock frequency change notifier Message-ID: <20161227214544.GF8288@codeaurora.org> References: <1482417654-2998-1-git-send-email-absahu@codeaurora.org> <1482417654-2998-2-git-send-email-absahu@codeaurora.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1482417654-2998-2-git-send-email-absahu@codeaurora.org> User-Agent: Mutt/1.5.21 (2010-09-15) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 12/22, Abhishek Sahu wrote: > The current driver code gives the crash or gets hang while switching > the CPU frequency some time. The APSS CPU Clock divider is not glitch > free so it the APPS clock need to be switched for stable clock during > the change. > > This patch adds the frequency change notifier for APSS CPU clock. It > changes the parent of this clock to stable PLL FEPLL500 for > PRE_RATE_CHANGE event. This event will be generated before actual > clock set operations. The clock set operation will again change its > corresponding parent by getting the same from frequency table. > > Signed-off-by: Abhishek Sahu > --- Applied to clk-ipq4019 and merged into clk-next. -- Qualcomm Innovation Center, Inc. is a member of Code Aurora Forum, a Linux Foundation Collaborative Project