diff --git a/sound/soc/codecs/hdac_hdmi.c b/sound/soc/codecs/hdac_hdmi.c index aa953a5b57d4..7851dd204a49 100644 --- a/sound/soc/codecs/hdac_hdmi.c +++ b/sound/soc/codecs/hdac_hdmi.c @@ -601,6 +601,26 @@ static int hdac_hdmi_pcm_open(struct snd_pcm_substream *substream, pin->eld.eld_buffer); } +static int hdac_hdmi_trigger(struct snd_pcm_substream *substream, int cmd, + struct snd_soc_dai *dai) +{ + struct hdac_hdmi_dai_pin_map *dai_map; + struct hdac_ext_device *hdac = snd_soc_dai_get_drvdata(dai); + struct hdac_hdmi_priv *hdmi = hdac->private_data; + int ret; + + dai_map = &hdmi->dai_map[dai->id]; + if (cmd == SNDRV_PCM_TRIGGER_RESUME) { + ret = hdac_hdmi_enable_pin(hdac, dai_map); + if (ret < 0) + return ret; + + return hdac_hdmi_playback_prepare(substream, dai); + } + + return 0; +} + static void hdac_hdmi_pcm_close(struct snd_pcm_substream *substream, struct snd_soc_dai *dai) { @@ -1154,6 +1174,7 @@ static struct snd_soc_dai_ops hdmi_dai_ops = { .shutdown = hdac_hdmi_pcm_close, .hw_params = hdac_hdmi_set_hw_params, .prepare = hdac_hdmi_playback_prepare, + .trigger = hdac_hdmi_trigger, .hw_free = hdac_hdmi_playback_cleanup, }; @@ -1399,9 +1420,64 @@ static int hdmi_codec_remove(struct snd_soc_codec *codec) return 0; } +#ifdef CONFIG_PM +static int hdmi_codec_resume(struct snd_soc_codec *codec) +{ + struct hdac_ext_device *edev = snd_soc_codec_get_drvdata(codec); + struct hdac_hdmi_priv *hdmi = edev->private_data; + struct hdac_hdmi_pin *pin; + struct hdac_device *hdac = &edev->hdac; + struct hdac_bus *bus = hdac->bus; + int err; + unsigned long timeout; + + hdac_hdmi_skl_enable_all_pins(&edev->hdac); + hdac_hdmi_skl_enable_dp12(&edev->hdac); + + /* Power up afg */ + if (!snd_hdac_check_power_state(hdac, hdac->afg, AC_PWRST_D0)) { + + snd_hdac_codec_write(hdac, hdac->afg, 0, + AC_VERB_SET_POWER_STATE, AC_PWRST_D0); + + /* Wait till power state is set to D0 */ + timeout = jiffies + msecs_to_jiffies(1000); + while (!snd_hdac_check_power_state(hdac, hdac->afg, AC_PWRST_D0) + && time_before(jiffies, timeout)) { + msleep(50); + } + } + + /* + * 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. + */ + list_for_each_entry(pin, &hdmi->pin_list, head) + hdac_hdmi_present_sense(pin, 1); + + /* + * Codec power is turned ON during controller resume. + * Turn it OFF here + */ + err = snd_hdac_display_power(bus, false); + if (err < 0) { + dev_err(bus->dev, + "Cannot turn OFF display power on i915, err: %d\n", + err); + return err; + } + + return 0; +} +#else +#define hdmi_codec_resume NULL +#endif + static struct snd_soc_codec_driver hdmi_hda_codec = { .probe = hdmi_codec_probe, .remove = hdmi_codec_remove, + .resume = hdmi_codec_resume, .idle_bias_off = true, };