diff options
Diffstat (limited to 'sound')
| -rw-r--r-- | sound/soc/codecs/hdac_hdmi.c | 116 | ||||
| -rw-r--r-- | sound/soc/intel/skylake/skl.c | 13 |
2 files changed, 17 insertions, 112 deletions
diff --git a/sound/soc/codecs/hdac_hdmi.c b/sound/soc/codecs/hdac_hdmi.c index 3ab2949c1dfa..b19d7a3e7a2c 100644 --- a/sound/soc/codecs/hdac_hdmi.c +++ b/sound/soc/codecs/hdac_hdmi.c @@ -1890,51 +1890,31 @@ static void hdmi_codec_remove(struct snd_soc_component *component) pm_runtime_disable(&hdev->dev); } -#ifdef CONFIG_PM -static int hdmi_codec_prepare(struct device *dev) -{ - struct hdac_device *hdev = dev_to_hdac_dev(dev); - - pm_runtime_get_sync(&hdev->dev); - - /* - * Power down afg. - * codec_read is preferred over codec_write to set the power state. - * This way verb is send to set the power state and response - * is received. So setting power state is ensured without using loop - * to read the state. - */ - snd_hdac_codec_read(hdev, hdev->afg, 0, AC_VERB_SET_POWER_STATE, - AC_PWRST_D3); - - return 0; -} - -static void hdmi_codec_complete(struct device *dev) +#ifdef CONFIG_PM_SLEEP +static int hdmi_codec_resume(struct device *dev) { struct hdac_device *hdev = dev_to_hdac_dev(dev); struct hdac_hdmi_priv *hdmi = hdev_to_hdmi_priv(hdev); + int ret; - /* Power up afg */ - snd_hdac_codec_read(hdev, hdev->afg, 0, AC_VERB_SET_POWER_STATE, - AC_PWRST_D0); - - hdac_hdmi_skl_enable_all_pins(hdev); - hdac_hdmi_skl_enable_dp12(hdev); - + ret = pm_runtime_force_resume(dev); + if (ret < 0) + return ret; /* * As the ELD notify callback request is not entertained while the * device is in suspend state. Need to manually check detection of * all pins here. pin capablity change is not support, so use the * already set pin caps. + * + * NOTE: this is safe to call even if the codec doesn't actually resume. + * The pin check involves only with DRM audio component hooks, so it + * works even if the HD-audio side is still dreaming peacefully. */ hdac_hdmi_present_sense_all_pins(hdev, hdmi, false); - - pm_runtime_put_sync(&hdev->dev); + return 0; } #else -#define hdmi_codec_prepare NULL -#define hdmi_codec_complete NULL +#define hdmi_codec_resume NULL #endif static const struct snd_soc_component_driver hdmi_hda_codec = { @@ -2135,75 +2115,6 @@ static int hdac_hdmi_dev_remove(struct hdac_device *hdev) } #ifdef CONFIG_PM -/* - * Power management sequences - * ========================== - * - * The following explains the PM handling of HDAC HDMI with its parent - * device SKL and display power usage - * - * Probe - * ----- - * In SKL probe, - * 1. skl_probe_work() powers up the display (refcount++ -> 1) - * 2. enumerates the codecs on the link - * 3. powers down the display (refcount-- -> 0) - * - * In HDAC HDMI probe, - * 1. hdac_hdmi_dev_probe() powers up the display (refcount++ -> 1) - * 2. probe the codec - * 3. put the HDAC HDMI device to runtime suspend - * 4. hdac_hdmi_runtime_suspend() powers down the display (refcount-- -> 0) - * - * Once children are runtime suspended, SKL device also goes to runtime - * suspend - * - * HDMI Playback - * ------------- - * Open HDMI device, - * 1. skl_runtime_resume() invoked - * 2. hdac_hdmi_runtime_resume() powers up the display (refcount++ -> 1) - * - * Close HDMI device, - * 1. hdac_hdmi_runtime_suspend() powers down the display (refcount-- -> 0) - * 2. skl_runtime_suspend() invoked - * - * S0/S3 Cycle with playback in progress - * ------------------------------------- - * When the device is opened for playback, the device is runtime active - * already and the display refcount is 1 as explained above. - * - * Entering to S3, - * 1. hdmi_codec_prepare() invoke the runtime resume of codec which just - * increments the PM runtime usage count of the codec since the device - * is in use already - * 2. skl_suspend() powers down the display (refcount-- -> 0) - * - * Wakeup from S3, - * 1. skl_resume() powers up the display (refcount++ -> 1) - * 2. hdmi_codec_complete() invokes the runtime suspend of codec which just - * decrements the PM runtime usage count of the codec since the device - * is in use already - * - * Once playback is stopped, the display refcount is set to 0 as explained - * above in the HDMI playback sequence. The PM handlings are designed in - * such way that to balance the refcount of display power when the codec - * device put to S3 while playback is going on. - * - * S0/S3 Cycle without playback in progress - * ---------------------------------------- - * Entering to S3, - * 1. hdmi_codec_prepare() invoke the runtime resume of codec - * 2. skl_runtime_resume() invoked - * 3. hdac_hdmi_runtime_resume() powers up the display (refcount++ -> 1) - * 4. skl_suspend() powers down the display (refcount-- -> 0) - * - * Wakeup from S3, - * 1. skl_resume() powers up the display (refcount++ -> 1) - * 2. hdmi_codec_complete() invokes the runtime suspend of codec - * 3. hdac_hdmi_runtime_suspend() powers down the display (refcount-- -> 0) - * 4. skl_runtime_suspend() invoked - */ static int hdac_hdmi_runtime_suspend(struct device *dev) { struct hdac_device *hdev = dev_to_hdac_dev(dev); @@ -2277,8 +2188,7 @@ static int hdac_hdmi_runtime_resume(struct device *dev) static const struct dev_pm_ops hdac_hdmi_pm = { SET_RUNTIME_PM_OPS(hdac_hdmi_runtime_suspend, hdac_hdmi_runtime_resume, NULL) - .prepare = hdmi_codec_prepare, - .complete = hdmi_codec_complete, + SET_SYSTEM_SLEEP_PM_OPS(pm_runtime_force_suspend, hdmi_codec_resume) }; static const struct hda_device_id hdmi_list[] = { diff --git a/sound/soc/intel/skylake/skl.c b/sound/soc/intel/skylake/skl.c index 60c94836bf5b..4ed5b7e17d44 100644 --- a/sound/soc/intel/skylake/skl.c +++ b/sound/soc/intel/skylake/skl.c @@ -336,9 +336,6 @@ static int skl_suspend(struct device *dev) skl->skl_sst->fw_loaded = false; } - if (IS_ENABLED(CONFIG_SND_SOC_HDAC_HDMI)) - snd_hdac_display_power(bus, HDA_CODEC_IDX_CONTROLLER, false); - return 0; } @@ -350,10 +347,6 @@ static int skl_resume(struct device *dev) struct hdac_ext_link *hlink = NULL; int ret; - /* Turned OFF in HDMI codec driver after codec reconfiguration */ - if (IS_ENABLED(CONFIG_SND_SOC_HDAC_HDMI)) - snd_hdac_display_power(bus, HDA_CODEC_IDX_CONTROLLER, true); - /* * resume only when we are not in suspend active, otherwise need to * restore the device @@ -446,8 +439,10 @@ static int skl_free(struct hdac_bus *bus) snd_hdac_ext_bus_exit(bus); cancel_work_sync(&skl->probe_work); - if (IS_ENABLED(CONFIG_SND_SOC_HDAC_HDMI)) + if (IS_ENABLED(CONFIG_SND_SOC_HDAC_HDMI)) { + snd_hdac_display_power(bus, HDA_CODEC_IDX_CONTROLLER, false); snd_hdac_i915_exit(bus); + } return 0; } @@ -814,7 +809,7 @@ static void skl_probe_work(struct work_struct *work) err = skl_platform_register(bus->dev); if (err < 0) { dev_err(bus->dev, "platform register failed: %d\n", err); - return; + goto out_err; } err = skl_machine_device_register(skl); |