[alsa-devel] [PATCH 1/3] ASoC: hdac_hdmi: report codec link up/down status to bus

[Takashi Iwai]

On Wed, 12 Jun 2019 14:22:56 +0200,
Kai Vehmanen wrote:
> 
> Report codec power status to the HDA codec bus from runtime pm
> suspend and resume callbacks. This is required to implement
> runtime idle logic that relies on 'codec_powered' field of hdac_bus
> to be maintained for all codecs.
> 
> Signed-off-by: Kai Vehmanen <kai.vehmanen at linux.intel.com>

Reviewed-by: Takashi Iwai <tiwai at suse.de>

It's the same behavior as the legacy HD-audio codec, after all.


thanks,

Takashi

> ---
>  sound/soc/codecs/hdac_hdmi.c | 2 ++
>  1 file changed, 2 insertions(+)
> 
> diff --git a/sound/soc/codecs/hdac_hdmi.c b/sound/soc/codecs/hdac_hdmi.c
> index 660e0587f3999..01ab7aed315cb 100644
> --- a/sound/soc/codecs/hdac_hdmi.c
> +++ b/sound/soc/codecs/hdac_hdmi.c
> @@ -2090,6 +2090,7 @@ static int hdac_hdmi_runtime_suspend(struct device *dev)
>  		return -EIO;
>  	}
>  
> +	snd_hdac_codec_link_down(hdev);
>  	snd_hdac_ext_bus_link_put(bus, hlink);
>  
>  	snd_hdac_display_power(bus, hdev->addr, false);
> @@ -2116,6 +2117,7 @@ static int hdac_hdmi_runtime_resume(struct device *dev)
>  	}
>  
>  	snd_hdac_ext_bus_link_get(bus, hlink);
> +	snd_hdac_codec_link_up(hdev);
>  
>  	snd_hdac_display_power(bus, hdev->addr, true);
>  
> -- 
> 2.17.1
> 
> _______________________________________________
> Alsa-devel mailing list
> Alsa-devel at alsa-project.org
> https://mailman.alsa-project.org/mailman/listinfo/alsa-devel
>