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Thu, 13 Dec 2018 14:35:26 +0000 (GMT) Subject: Re: [PATCH v3 4/5] drivers: power: suspend: call devfreq suspend/resume To: linux-arm-kernel@lists.infradead.org, linux-samsung-soc@vger.kernel.org, linux-kernel@vger.kernel.org, linux-pm@vger.kernel.org, devicetree@vger.kernel.org, "rjw@rjwysocki.net" Cc: tjakobi@math.uni-bielefeld.de, myungjoo.ham@samsung.com, kyungmin.park@samsung.com, cw00.choi@samsung.com, rjw@rjwysocki.net, len.brown@intel.com, pavel@ucw.cz, gregkh@linuxfoundation.org, keescook@chromium.org, anton@enomsg.org, ccross@android.com, tony.luck@intel.com, robh+dt@kernel.org, mark.rutland@arm.com, kgene@kernel.org, krzk@kernel.org, m.szyprowski@samsung.com, b.zolnierkie@samsung.com From: Lukasz Luba Message-ID: Date: Thu, 13 Dec 2018 15:35:25 +0100 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:60.0) Gecko/20100101 Thunderbird/60.2.1 MIME-Version: 1.0 In-Reply-To: <1544007956-28889-5-git-send-email-l.luba@partner.samsung.com> Content-Language: en-US Content-Transfer-Encoding: 7bit X-Brightmail-Tracker: H4sIAAAAAAAAA01SaUxTWRj19q2g1Utd+olrqiZiIm4k3oz7Rl40Zmb8gUaNWuUFjW3FPnCP oo4WShE0BLVWMHFUUjCFWkutIojFuhQLEldSN4zGQRJjUaMSlefDDP/OOd8593xfcnlKU8zG 8xtMGaLZpDfo2Fjae+NLePxEk2blRJ9NS65dTCCVx1wMqar8xJCHHW8YUhK4y5D9p10sCeUa SX5rG0XC4QqONOx7xxF7YbWKuFsfMKTZ72BJNC+AyLHwVRU5H4hw5MzDJhVp2VvKksjt+q78 nXsMOVAd4MjBsvcMedf4lJ6tFbyXvYxQXlyOhBNZTbRQkP8BCaevvFUJbmcOK9ScLOeEC//u Eb7f4ATPfQstHPI4kVBa9pkTou7hf6mXx05PFQ0btojmCTPXxK7PcXbS6S29t50tbKOz0PUY K4rhASfBWftr1opieQ0uRfC5yIoU0oHgWmerSiFRBC/qCtHvSPEhD60MziEIFp3sJu0IHufm sbKrP14CQZuLkQcDcAiB94fvF6FwMQVPP0S63uJ5FieCz7lZDqhxMkQabJyMaTwGTuVXMzIe iJdB9rMyVvHEwa3jr2g5GoMXwcevM2SZwlp48qpEpeARUNXuoOQqwM95iETPsMra86GttpJR cH/4L+jhFDwUflxSwoAlaMh2dvt3geWWr9szDa4Hmxi5l8IJ4PJPUOQ5EPLX/loHcF941B6n rNAXjniPUoqshuyDGsU9Fjy2xu6iQXCuvIgrQDp7j7vsPY6x9zjG/n/vKUQ7kVbMlIxpojTZ JG5NlPRGKdOUlrhuk9GNun7tne/BDh/yd66tQ5hHuj7q2mFxKzWMfou03ViHgKd0A9Sty7sk dap++w7RvGm1OdMgSnVoCE/rtOqdvZ6v0OA0fYa4URTTRfPvqYqPic9Co6yWfnerHbkDdaND lxrX0FV/7O/n3ZhqMbnz/v4z+VFC4YLb0/nBQ0KHXUutzTUXP9Yw2yxxqSX1u8dVmAzLXub4 dzoyXoiropNSZln+Ofp2cM7IWUkFAYM2aeG3YMqgKdK8mzZOc2Hm1Oa5I9Ir701uSX49P7vC H+9zfFu8O1zPpuhoab1+0jjKLOl/AqIMZ9WxAwAA X-Brightmail-Tracker: H4sIAAAAAAAAA02Sa0hTYRiA+XbO2Tlao+PU/LSwHJZZdPR426dptx9xoD9RQbFKXXpQyW12 zmZZP9Iiw2lZEWUrp2AXWZZ5ScUrecXUlpYKmXZRMJtWaCaFSVsj8N/zXp735YWXwuQVhA+V otXzgladqpC64j1LXWNbg7Tyo8G5X/3R82eBqKKgnEC1FT8JNPxjkkBF7S8JdKGkXIp6czUo f9yGIav1KYn6zk+TyHSjSYIqx4cI9Lr+rhTNXW4HqMDaLEGP20dJdH+4X4JGskqlaPRFh93v GSDQxaZ2EmU/+k6g6Vdj+E4vrqahhuDKzGWAu5PZj3NX82cBV9I4JeEqLTlSrqWwjOSq7p3j ljpJrnrwEs5dqbYArvTRAsnNVfruk6mYaEFn0PPrk3WiPkZxhEUhDBuJmJCwSIYNVR6LCglX BG2PTuRTU9J5IWh7PJOcY1nE00ZWnH5ww4ZngjYXI3ChIB0GzVeqcSNwpeT0fQDb2m4SzsJq eL25lnSyO1wcMkodLKdtAH7KZR3sTu+HXXnlhEP2oHsBNHbfIh0BRpsxOGmeAc6x7wFsePhS YgQUJaUZWGc56bBl9B442pf3bwNOb4DF+U3/NnvSh2Hf1BPg7HGD3bcncIfqQu+F879jHGmM joDmqo+Yk73g24kiiZPXwdqZu9hVIDcts03LFNMyxbRMKQa4BXjwBlGTpBFZRlRrRIM2iUnQ aSqB/V1qOn9V1YGBigOtgKaAYqUseY3bUTmhThczNK0AUpjCQzausqdkieqMM7ygixMMqbzY CsLtt13DfDwTdPbn0+rj2HBWiSJZZagyNAIpvGTW4AyVnE5S6/kTPJ/GC/89CeXikwkCmOkX a1W7jpcWevd+SIw1tPzpP7Xr7J8et1LzG/JLmHd0ib77W8O1LI3vRBTL1g8GWpsUHREBn1Ez bjAevlDybn2jYCvY4RciHtyW6jf/JD57lS7Af9bre80mdkG1JXZgk7u/aPPJ3r1z0c9bCTcW HnLdE2t8OiF5IAT5ftvboMDFZDW7GRNE9V8MsBMORAMAAA== X-CMS-MailID: 20181213143527eucas1p26f095744959e561c2c89f0a2cc1a6018 X-Msg-Generator: CA Content-Type: text/plain; charset="utf-8" X-RootMTR: 20181205110623eucas1p120f9d8b38822bf856a5b7d427d00e49f X-EPHeader: CA CMS-TYPE: 201P X-CMS-RootMailID: 20181205110623eucas1p120f9d8b38822bf856a5b7d427d00e49f References: <1544007956-28889-1-git-send-email-l.luba@partner.samsung.com> <1544007956-28889-5-git-send-email-l.luba@partner.samsung.com> Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi Rafael, I see that you have pulled 3 patches. Please take also this patch, which is actually enabling the feature. Regards, Lukasz On 12/5/18 12:05 PM, Lukasz Luba wrote: > Devfreq framework supports suspend of its devices. > Call the the devfreq interface and allow devfreq devices preserve/restore > their states during suspend/resume. > > Suggested-by: Tobias Jakobi > Reviewed-by: Chanwoo Choi > Signed-off-by: Lukasz Luba > --- > drivers/base/power/main.c | 3 +++ > 1 file changed, 3 insertions(+) > > diff --git a/drivers/base/power/main.c b/drivers/base/power/main.c > index a690fd4..0992e67 100644 > --- a/drivers/base/power/main.c > +++ b/drivers/base/power/main.c > @@ -32,6 +32,7 @@ > #include > #include > #include > +#include > #include > > #include "../base.h" > @@ -1078,6 +1079,7 @@ void dpm_resume(pm_message_t state) > dpm_show_time(starttime, state, 0, NULL); > > cpufreq_resume(); > + devfreq_resume(); > trace_suspend_resume(TPS("dpm_resume"), state.event, false); > } > > @@ -1852,6 +1854,7 @@ int dpm_suspend(pm_message_t state) > trace_suspend_resume(TPS("dpm_suspend"), state.event, true); > might_sleep(); > > + devfreq_suspend(); > cpufreq_suspend(); > > mutex_lock(&dpm_list_mtx); >