From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755147AbdDDRFr (ORCPT ); Tue, 4 Apr 2017 13:05:47 -0400 Received: from mail-by2nam01on0057.outbound.protection.outlook.com ([104.47.34.57]:36567 "EHLO NAM01-BY2-obe.outbound.protection.outlook.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1754913AbdDDREn (ORCPT ); Tue, 4 Apr 2017 13:04:43 -0400 Authentication-Results: spf=fail (sender IP is 192.88.168.50) smtp.mailfrom=nxp.com; vger.kernel.org; dkim=none (message not signed) header.d=none;vger.kernel.org; dmarc=fail action=none header.from=nxp.com; From: Leonard Crestez To: Lucas Stach , Viresh Kumar , "Rafael J. Wysocki" , Sascha Hauer , Shawn Guo CC: Leonard Crestez , Mark Brown , Robin Gong , Anson Huang , Irina Tirdea , Fabio Estevam , Octavian Purdila , Liam Girdwood , , , Subject: [PATCH v2 2/4] cpufreq: imx6q: Set max suspend_freq to avoid changes during suspend Date: Tue, 4 Apr 2017 20:04:12 +0300 Message-ID: <5f61b819733127ddc7d41e82bf703a355c845b49.1491324640.git.leonard.crestez@nxp.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: References: X-EOPAttributedMessage: 0 X-Matching-Connectors: 131357990763791759;(91ab9b29-cfa4-454e-5278-08d120cd25b8);() X-Forefront-Antispam-Report: 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PMIC via I2C or SPI but those devices might be already suspended. This issue is likely to happen whenever the LDOs have their vin-supply set. To avoid this scenario we just increase cpufreq to the maximum before suspend. Signed-off-by: Leonard Crestez --- drivers/cpufreq/imx6q-cpufreq.c | 8 +++++++- 1 file changed, 7 insertions(+), 1 deletion(-) diff --git a/drivers/cpufreq/imx6q-cpufreq.c b/drivers/cpufreq/imx6q-cpufreq.c index be90ee3..786122e 100644 --- a/drivers/cpufreq/imx6q-cpufreq.c +++ b/drivers/cpufreq/imx6q-cpufreq.c @@ -161,8 +161,13 @@ static int imx6q_set_target(struct cpufreq_policy *policy, unsigned int index) static int imx6q_cpufreq_init(struct cpufreq_policy *policy) { + int ret; + policy->clk = arm_clk; - return cpufreq_generic_init(policy, freq_table, transition_latency); + ret = cpufreq_generic_init(policy, freq_table, transition_latency); + policy->suspend_freq = policy->max; + + return ret; } static struct cpufreq_driver imx6q_cpufreq_driver = { @@ -173,6 +178,7 @@ static struct cpufreq_driver imx6q_cpufreq_driver = { .init = imx6q_cpufreq_init, .name = "imx6q-cpufreq", .attr = cpufreq_generic_attr, + .suspend = cpufreq_generic_suspend, }; static int imx6q_cpufreq_probe(struct platform_device *pdev) -- 2.7.4