From 61722f447243d4d8f249a9359ffc5a21c1587f36 Mon Sep 17 00:00:00 2001 From: Jeeja KP Date: Tue, 27 Oct 2015 09:23:00 +0900 Subject: [PATCH] ASoC: Intel: Skylake: Fix PM behaviour The driver runtime behaviour is fine but in suspend, we missed setting the DSP to suspend and also missed resuming DSP on resume. Fix this by having common SKL suspend and resume routines which power up/down links, suspend/resume DSP and other common routines, and call these routines from both runtime as well as system PM handlers Signed-off-by: Jayachandran B Signed-off-by: Jeeja KP Signed-off-by: Vinod Koul Signed-off-by: Mark Brown --- sound/soc/intel/skylake/skl.c | 60 +++++++++++++++++++++++++------------------ 1 file changed, 35 insertions(+), 25 deletions(-) diff --git a/sound/soc/intel/skylake/skl.c b/sound/soc/intel/skylake/skl.c index 211ef6e2..9b94a8c 100644 --- a/sound/soc/intel/skylake/skl.c +++ b/sound/soc/intel/skylake/skl.c @@ -129,6 +129,37 @@ static int skl_acquire_irq(struct hdac_ext_bus *ebus, int do_disconnect) return 0; } +#ifdef CONFIG_PM +static int _skl_suspend(struct hdac_ext_bus *ebus) +{ + struct skl *skl = ebus_to_skl(ebus); + struct hdac_bus *bus = ebus_to_hbus(ebus); + int ret; + + snd_hdac_ext_bus_link_power_down_all(ebus); + + ret = skl_suspend_dsp(skl); + if (ret < 0) + return ret; + + snd_hdac_bus_stop_chip(bus); + snd_hdac_bus_enter_link_reset(bus); + + return 0; +} + +static int _skl_resume(struct hdac_ext_bus *ebus) +{ + struct skl *skl = ebus_to_skl(ebus); + struct hdac_bus *bus = ebus_to_hbus(ebus); + + skl_init_pci(skl); + snd_hdac_bus_init_chip(bus, true); + + return skl_resume_dsp(skl); +} +#endif + #ifdef CONFIG_PM_SLEEP /* * power management @@ -137,26 +168,16 @@ static int skl_suspend(struct device *dev) { struct pci_dev *pci = to_pci_dev(dev); struct hdac_ext_bus *ebus = pci_get_drvdata(pci); - struct hdac_bus *bus = ebus_to_hbus(ebus); - - snd_hdac_bus_stop_chip(bus); - snd_hdac_bus_enter_link_reset(bus); - return 0; + return _skl_suspend(ebus); } static int skl_resume(struct device *dev) { struct pci_dev *pci = to_pci_dev(dev); struct hdac_ext_bus *ebus = pci_get_drvdata(pci); - struct hdac_bus *bus = ebus_to_hbus(ebus); - struct skl *hda = ebus_to_skl(ebus); - - skl_init_pci(hda); - snd_hdac_bus_init_chip(bus, 1); - - return 0; + return _skl_resume(ebus); } #endif /* CONFIG_PM_SLEEP */ @@ -166,24 +187,13 @@ static int skl_runtime_suspend(struct device *dev) struct pci_dev *pci = to_pci_dev(dev); struct hdac_ext_bus *ebus = pci_get_drvdata(pci); struct hdac_bus *bus = ebus_to_hbus(ebus); - struct skl *skl = ebus_to_skl(ebus); - int ret; dev_dbg(bus->dev, "in %s\n", __func__); /* enable controller wake up event */ snd_hdac_chip_updatew(bus, WAKEEN, 0, STATESTS_INT_MASK); - snd_hdac_ext_bus_link_power_down_all(ebus); - - ret = skl_suspend_dsp(skl); - if (ret < 0) - return ret; - - snd_hdac_bus_stop_chip(bus); - snd_hdac_bus_enter_link_reset(bus); - - return 0; + return _skl_suspend(ebus); } static int skl_runtime_resume(struct device *dev) @@ -204,7 +214,7 @@ static int skl_runtime_resume(struct device *dev) /* disable controller Wake Up event */ snd_hdac_chip_updatew(bus, WAKEEN, STATESTS_INT_MASK, 0); - return skl_resume_dsp(skl); + return _skl_resume(ebus); } #endif /* CONFIG_PM */ -- 2.7.4