Dear Stephen,
when rebuilding linux-next you're going to see a merge conflict in:
sound/pci/hda/hda_intel.c
betwen commit:
1ba8f9d30817 ("ALSA: hda: Add a power_save blacklist")
from the sound tree and commit:
07f4f97d7b4b ("vga_switcheroo: Use device link for HDA controller")
from the drm-misc tree.
I recommend fixing it up like below.
-- >8 --
@@@ -2284,16 -2298,22 +2303,30 @@@
chip->running = 1;
azx_add_card_list(chip);
+ /*
+ * The discrete GPU cannot power down unless the HDA controller runtime
+ * suspends, so activate runtime PM on codecs even if power_save == 0.
+ */
+ if (use_vga_switcheroo(hda))
+ list_for_each_codec(codec, &chip->bus)
+ codec->auto_runtime_pm = 1;
+
- snd_hda_set_power_save(&chip->bus, power_save * 1000);
+ val = power_save;
+ #ifdef CONFIG_PM
+ if (val == -1) {
+ const struct snd_pci_quirk *q;
+
+ val = CONFIG_SND_HDA_POWER_SAVE_DEFAULT;
+ q = snd_pci_quirk_lookup(chip->pci, power_save_blacklist);
+ if (q && val) {
+ dev_info(chip->card->dev, "device %04x:%04x is on the
power_save blacklist, forcing power_save to 0\n",
+ q->subvendor, q->subdevice);
+ val = 0;
+ }
+ }
+ #endif /* CONFIG_PM */
+ snd_hda_set_power_save(&chip->bus, val * 1000);
- if (azx_has_pm_runtime(chip) || hda->use_vga_switcheroo)
+ if (azx_has_pm_runtime(chip))
pm_runtime_put_autosuspend(&pci->dev);
out_free:
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