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Thu, 17 Jun 2021 03:50:56 +0000 (GMT) Subject: Re: [PATCH] opp: of: Allow lazy-linking of required-opps to non genpd To: Viresh Kumar Cc: Hsin-Yi Wang , "Viresh Kumar )" , Nishanth Menon , Stephen Boyd , linux-pm@vger.kernel.org, linux-kernel@vger.kernel.org, "andrew-sh . cheng" From: Chanwoo Choi Organization: Samsung Electronics Message-ID: Date: Thu, 17 Jun 2021 13:09:56 +0900 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:59.0) Gecko/20100101 Thunderbird/59.0 MIME-Version: 1.0 In-Reply-To: <20210617033351.44pxdpjicm62byuh@vireshk-i7> Content-Language: en-US Content-Transfer-Encoding: 7bit X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFprPJsWRmVeSWpSXmKPExsWy7bCmnu7CY6cSDHY91bLYvv4Fq8WE1u3M Fpd3zWGz+Nx7hNHizY+zTBb/rm1ksdj41cNi84NjbA4cHrMbLrJ4bFrVyeZx59oeNo+Wk/tZ PI7f2M7k8XmTXABbVLZNRmpiSmqRQmpecn5KZl66rZJ3cLxzvKmZgaGuoaWFuZJCXmJuqq2S i0+ArltmDtA9SgpliTmlQKGAxOJiJX07m6L80pJUhYz84hJbpdSClJwCywK94sTc4tK8dL3k /FwrQwMDI1OgwoTsjNVH7ApmsFW0XD/J0sDYxNrFyMkhIWAicebrQ8YuRi4OIYEdjBKXX7Qw gSSEBD4xSpw6ngOR+MYoce3yeRaYjtO3LkN17GWUWHB6GjOE855Ron/qLHaQKmGBAInNK38C VXFwiAhoSby8mQpSwyzwh1Fi8t8zYJPYgOL7X9xgA7H5BRQlrv54zAhi8wrYSVz9PwvMZhFQ lZi9ZwNYjahAmMTJbS1QNYISJ2c+AZvDKWApsfPINrA4s4C4xK0n85kgbHmJ7W/ngB0nIbCU Q+Lyp6msIAdJCLhIPD/uBvGNsMSr41vYIWwpic/v9rJB2NUSK08eYYPo7WCU2LL/AjTAjCX2 L53MBDKHWUBTYv0ufYiwosTO33OhbuCTePe1B2oVr0RHmxBEibLE5Qd3mSBsSYnF7Z1sExiV ZiH5ZhaSD2Yh+WAWwrIFjCyrGMVSC4pz01OLDQsMkeN6EyM4pWqZ7mCc+PaD3iFGJg7GQ4wS HMxKIry6xScShHhTEiurUovy44tKc1KLDzGaAsN3IrOUaHI+MKnnlcQbmhoZGxtbmBiamRoa Konz7mQ7lCAkkJ5YkpqdmlqQWgTTx8TBKdXAtMnW4Ocjr56rJlMvrNWePfFTX94NtxP6V+5H Pl0ZvmR5n5rmr29T1vWF6EveagivvpS4xVDfltHKJUw8UlZT8oFwf+Zb3s1iR9nSda6XfFmr a3x6tfNZM7GvsaqHf786nf9w41rNFbbRl3lni3HnxPWfTM0/6nL95SuV2W1Hiv3PbTlTxuj/ V+ZT7O9dbcdex0/9tLk62Uf59q8XD0wqZxiZBr8+f0tpjVfTz1OsDyQ3PFihKRWy0eeN/LQT anofqny7qqq+f2SeZBDVcj9YVGOCeku9Yc2P3Y9Ud4jH9t843nnbzSBI/JrOT9EHje8N5dxb 8tMeVSh9OMX2XXTGfnZlTtmHWZnT/aYtk2BeocRSnJFoqMVcVJwIAEKNMREyBAAA X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFupmkeLIzCtJLcpLzFFi42LZdlhJTnfBsVMJBmfm8FpsX/+C1WJC63Zm i8u75rBZfO49wmjx5sdZJot/1zayWGz86mGx+cExNgcOj9kNF1k8Nq3qZPO4c20Pm0fLyf0s HsdvbGfy+LxJLoAtissmJTUnsyy1SN8ugStj9RG7ghlsFS3XT7I0MDaxdjFyckgImEicvnWZ sYuRi0NIYDejxPn2WYwQCUmJaRePMncxcgDZwhKHDxdD1LxllJgx9zwzSI2wgJ/Eo7mTwWpE BLQkXt5MBalhFvjHKPFu4m42iIZWZomNH5rYQBrYgIr2v7gBZvMLKEpc/fEYbBmvgJ3E1f8Q i1kEVCVm79kAViMqECaxc8ljJogaQYmTM5+wgNicApYSO49sA6tnFlCX+DPvEjOELS5x68l8 JghbXmL72znMExiFZyFpn4WkZRaSlllIWhYwsqxilEwtKM5Nzy02LDDMSy3XK07MLS7NS9dL zs/dxAiOLy3NHYzbV33QO8TIxMF4iFGCg1lJhFe3+ESCEG9KYmVValF+fFFpTmrxIUZpDhYl cd4LXSfjhQTSE0tSs1NTC1KLYLJMHJxSDUxM/5ib/Tot9r4KmB+bUvTI6HWj22Ymj7sZcnsc 0xS3vNddy380c5nU/xvXLe2flm83fGywzO9hoUrFnMK/4aHXzGxeTnQz6eb1VFY0XXN6eaff 5LLc02IegdNWy5ZtmZZgcKSq62Pv79ITyV+Fdzd8OiHxxyyt8ULFg8aoTQ9/Hne9Yh/yJORO u9XeLZt/9J19+7WnL3KNv65w7F9770sOymeS131f/lz9mkG/5rkNTlI/Xniwv5V2z522+9HC C/56HdwrNG86ZNju7VXYcn1bWM6N1a3pYpILOnVdl5TMtM43K0gT7VmyuvnBxzOHardwPZc4 L3029M6Zaou+9t0KM6ayPLyiNfGalFShnI4SS3FGoqEWc1FxIgDDhx2+HgMAAA== X-CMS-MailID: 20210617035056epcas1p2694533e354e058c4c3bc183acd1173f0 X-Msg-Generator: CA Content-Type: text/plain; charset="utf-8" X-Sendblock-Type: SVC_REQ_APPROVE CMS-TYPE: 101P DLP-Filter: Pass X-CFilter-Loop: Reflected X-CMS-RootMailID: 20210616075555epcas1p136129544501878b4bedaf8e46f9a43dc References: <20210616053335.4181780-1-hsinyi@chromium.org> <20210616075548.ghp3lmjf4y6pyxoy@vireshk-i7> <20210616090945.sn337tftdcp7y7y6@vireshk-i7> <742b2623-e8ff-db1f-9168-bdbde98110dd@samsung.com> <20210617033351.44pxdpjicm62byuh@vireshk-i7> Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 6/17/21 12:33 PM, Viresh Kumar wrote: > On 17-06-21, 10:13, Chanwoo Choi wrote: >> The devfreq driver(exynos-bus.c) has used the dev_pm_opp_set_rate() >> and used the passive governor without the required-opp property. > > Which is fine. > >> I have a plan to use the required-opp property >> between devfreq drivers (exynos-bus.c) with dev_pm_opp_set_rate(). >> >> I'll support them on later if this approach doesn't break the any >> rule of required-opp property. > > You will be required to make some changes in core for that I am > afraid. It won't work automatically. Do you think that better to use clk_enable/regulator_enable directly instead of dev_pm_opp_set_rate() for using required-opp property? -- Best Regards, Chanwoo Choi Samsung Electronics