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

[Pierre-Louis Bossart]

Thanks for the reviews Takashi.

On 12/12/18 6:04 AM, Takashi Iwai wrote:
> 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...
Yes, it's already tracked as an item to fix. We might change the name 
even since there is no reference count any longer, so something like 
hda_codec_i915_power would make more sense.
>
>> +	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?
I think it does? We'll double-check this.