[alsa-devel] [PATCH 06/21] ASoC: SOF: Intel: Add Intel specific HDA DSP HW operations

[Takashi Iwai]

On Tue, 11 Dec 2018 22:30:14 +0100,
Pierre-Louis Bossart wrote:
> 
> +int hda_dsp_resume(struct snd_sof_dev *sdev)
> +{
> +	struct hdac_bus *bus = sof_to_bus(sdev);
> +	int ret;
> +
> +	/* turn display power on */
> +	ret = hda_codec_i915_get(sdev);

OK, we need to change this one for following my latest HD-audio PM
refactoring...

> +	if (ret < 0) {
> +		dev_err(bus->dev, "error: cannot turn on display power on i915 after resume\n");
> +		return ret;
> +	}
> +
> +	/* init hda controller and power dsp up */
> +	return hda_resume(sdev);
> +}
> +
> +int hda_dsp_runtime_resume(struct snd_sof_dev *sdev)
> +{
> +	/* init hda controller and power dsp up */
> +	return hda_resume(sdev);
> +}

But why can't runtime PM turn on/off the display power?


thanks,

Takashi