From mboxrd@z Thu Jan 1 00:00:00 1970 From: Anshuman Gupta Subject: [PATCH] [sound] hdac-codec runtime suspended at PM:Suspend. Date: Mon, 12 Mar 2018 16:47:47 +0530 Message-ID: <1520853467-31653-1-git-send-email-anshuman.gupta@intel.com> Return-path: Sender: linux-kernel-owner@vger.kernel.org To: lgirdwood@gmail.com, broonie@kernel.org, perex@perex.cz, tiwai@suse.com Cc: alsa-devel@alsa-project.org, linux-kernel@vger.kernel.org, linux-pm@vger.kernel.org, anshuman.gupta@intel.com List-Id: linux-pm@vger.kernel.org Keep hdac-codec to be in runtime suspended while entering to suspend. If hdac-codec is already in runtime suspend state skip its power down sequence in prepare, power up sequence in complete phase. Avoid resuming hdac controller PCI device 00:1f.3 from runtime suspend state in case hdac-codec already in runtime-suspend state, this is unnecessary and block the direct complete even for hdac controller PCI device 00:1f.3. This enabled direct complete path for hdac-codec and PCI device 00:1f.3. Signed-off-by: Anshuman Gupta --- sound/soc/codecs/hdac_hdmi.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/sound/soc/codecs/hdac_hdmi.c b/sound/soc/codecs/hdac_hdmi.c index f3b4f4d..810a8a6 100644 --- a/sound/soc/codecs/hdac_hdmi.c +++ b/sound/soc/codecs/hdac_hdmi.c @@ -1852,6 +1852,8 @@ static int hdmi_codec_prepare(struct device *dev) struct hdac_ext_device *edev = to_hda_ext_device(dev); struct hdac_device *hdac = &edev->hdac; + if (pm_runtime_status_suspended(dev)) + return 1; pm_runtime_get_sync(&edev->hdac.dev); /* @@ -1873,6 +1875,8 @@ static void hdmi_codec_complete(struct device *dev) struct hdac_hdmi_priv *hdmi = edev->private_data; struct hdac_device *hdac = &edev->hdac; + if (pm_runtime_status_suspended(dev)) + return; /* Power up afg */ snd_hdac_codec_read(hdac, hdac->afg, 0, AC_VERB_SET_POWER_STATE, AC_PWRST_D0); -- 2.7.4