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[79.139.233.37]) by smtp.googlemail.com with ESMTPSA id y11sm26174lfc.27.2020.02.06.09.15.43 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Thu, 06 Feb 2020 09:15:44 -0800 (PST) Subject: Re: [PATCH v2 6/9] ASoC: tegra: add Tegra186 based DSPK driver To: Sameer Pujar Cc: perex@perex.cz, tiwai@suse.com, robh+dt@kernel.org, broonie@kernel.org, lgirdwood@gmail.com, thierry.reding@gmail.com, jonathanh@nvidia.com, alsa-devel@alsa-project.org, devicetree@vger.kernel.org, linux-tegra@vger.kernel.org, linux-kernel@vger.kernel.org, sharadg@nvidia.com, mkumard@nvidia.com, viswanathl@nvidia.com, rlokhande@nvidia.com, dramesh@nvidia.com, atalambedu@nvidia.com References: <1580380422-3431-1-git-send-email-spujar@nvidia.com> <1580380422-3431-7-git-send-email-spujar@nvidia.com> From: Dmitry Osipenko Message-ID: Date: Thu, 6 Feb 2020 20:15:43 +0300 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.3.0 MIME-Version: 1.0 In-Reply-To: <1580380422-3431-7-git-send-email-spujar@nvidia.com> Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 30.01.2020 13:33, Sameer Pujar пишет: > +static const struct dev_pm_ops tegra186_dspk_pm_ops = { > + SET_RUNTIME_PM_OPS(tegra186_dspk_runtime_suspend, > + tegra186_dspk_runtime_resume, NULL) > + SET_LATE_SYSTEM_SLEEP_PM_OPS(pm_runtime_force_suspend, > + pm_runtime_force_resume) > +}; Could you please explain why drivers need the "late" system sleep?