From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755469AbbIHQmH (ORCPT ); Tue, 8 Sep 2015 12:42:07 -0400 Received: from mailout3.samsung.com ([203.254.224.33]:47820 "EHLO mailout3.samsung.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755237AbbIHQmB (ORCPT ); Tue, 8 Sep 2015 12:42:01 -0400 X-AuditID: cbfee61a-f79a06d000005c6f-76-55ef0fd72f37 From: Bartlomiej Zolnierkiewicz To: Thomas Abraham , Kukjin Kim , Kukjin Kim , Viresh Kumar , Krzysztof Kozlowski , Marek Szyprowski , "Rafael J. Wysocki" Cc: Sylwester Nawrocki , Michael Turquette , Tomasz Figa , Lukasz Majewski , Heiko Stuebner , Chanwoo Choi , Kevin Hilman , Javier Martinez Canillas , Tobias Jakobi , Anand Moon , linux-samsung-soc@vger.kernel.org, linux-clk@vger.kernel.org, linux-pm@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, b.zolnierkie@samsung.com Subject: [PATCH v5 3/4] cpufreq-dt: add suspend frequency support Date: Tue, 08 Sep 2015 18:41:03 +0200 Message-id: <1441730464-7947-4-git-send-email-b.zolnierkie@samsung.com> X-Mailer: git-send-email 1.9.1 In-reply-to: <1441730464-7947-1-git-send-email-b.zolnierkie@samsung.com> References: <1441730464-7947-1-git-send-email-b.zolnierkie@samsung.com> X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFvrHLMWRmVeSWpSXmKPExsVy+t9jQd3r/O9DDe41KFpsnLGe1eL6l+es Fv8fvWa1ePN2DZPF6xeGFr0LrrJZ9D9+zWzx9fAKRos3DzczWmx6fI3V4mPPPVaLy7vmsFl8 7j3CaDHj/D4mi3Ubb7FbrD1yl93i4ilXizOnL7FaHH7TzmrRsYzRom31B1aLVbv+MFps/Orh IO7x/kYru8fOWXfZPTat6mTzuHNtD5vH5iX1Hv+OsXts6QcKb7nazuLRt2UVo8f2a/OYPT5v kgvgjuKySUnNySxLLdK3S+DKmPo0tWAVX0Xja9YGxh6eLkZODgkBE4lXSw8yQdhiEhfurWfr YuTiEBKYxSix58IisISQwC9GiY6LaSA2m4CVxMT2VYwgRSICi5gkFu7fygriMAs8Y5FofdfN ClIlLOAo8eLBU2YQm0VAVeLx84tgcV4Bd4n9R3dArZOTOHlsMlicU8BDouX3DKht7hJdJ1cz TmDkXcDIsIpRIrUguaA4KT3XMC+1XK84Mbe4NC9dLzk/dxMjOFaeSe1gPLjL/RCjAAejEg9v g9e7UCHWxLLiytxDjBIczEoivNm/gUK8KYmVValF+fFFpTmpxYcYpTlYlMR5ZVc+CxUSSE8s Sc1OTS1ILYLJMnFwSjUwMh1Y6VnPwbSsiT9kjVCLk2bk5IPXPoVumSg526Tj94y451X7Nuxh znMs8Fp9aPHMmYvvXS032Tzn0l6dGAXGNRWLL7O+nx19R+cs45Ol/dW9M+7xhufM6TRaMPfO Ua/WY8eUDguxPhS51yJQq7n+L/8jD6nc7422MS6O8a+VP+w5ExX5oeCKjxJLcUaioRZzUXEi AFovoEyRAgAA Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Add suspend frequency support and if needed set it to the frequency obtained from the suspend opp (can be defined using opp-v2 bindings and is optional). Cc: Thomas Abraham Cc: Javier Martinez Canillas Cc: Krzysztof Kozlowski Cc: Marek Szyprowski Cc: Tobias Jakobi Acked-by: Viresh Kumar Signed-off-by: Bartlomiej Zolnierkiewicz --- drivers/cpufreq/cpufreq-dt.c | 9 +++++++++ 1 file changed, 9 insertions(+) diff --git a/drivers/cpufreq/cpufreq-dt.c b/drivers/cpufreq/cpufreq-dt.c index c3583cd..9b5e7c9 100644 --- a/drivers/cpufreq/cpufreq-dt.c +++ b/drivers/cpufreq/cpufreq-dt.c @@ -196,6 +196,7 @@ static int cpufreq_init(struct cpufreq_policy *policy) struct device *cpu_dev; struct regulator *cpu_reg; struct clk *cpu_clk; + struct dev_pm_opp *suspend_opp; unsigned long min_uV = ~0, max_uV = 0; unsigned int transition_latency; bool need_update = false; @@ -329,6 +330,13 @@ static int cpufreq_init(struct cpufreq_policy *policy) policy->driver_data = priv; policy->clk = cpu_clk; + + rcu_read_lock(); + suspend_opp = dev_pm_opp_get_suspend_opp(cpu_dev); + if (suspend_opp) + policy->suspend_freq = dev_pm_opp_get_freq(suspend_opp) / 1000; + rcu_read_unlock(); + ret = cpufreq_table_validate_and_show(policy, freq_table); if (ret) { dev_err(cpu_dev, "%s: invalid frequency table: %d\n", __func__, @@ -419,6 +427,7 @@ static struct cpufreq_driver dt_cpufreq_driver = { .ready = cpufreq_ready, .name = "cpufreq-dt", .attr = cpufreq_dt_attr, + .suspend = cpufreq_generic_suspend, }; static int dt_cpufreq_probe(struct platform_device *pdev) -- 1.9.1