ALSA: hda - Fix mute LED on HP laptops in runtime suspend
When HP laptops with mute and mic-record LEDs go to runtime suspend,
these LEDs are turned on forcibly no matter whether GPIO pis are on or
off. This strange behavior seems triggered by resetting the HD-audio
bus link at azx_rutime_suspend(). So, just add a new hda_bus flag to
avoid the link reset at runtime suspend and set it for these HP
machines.
Signed-off-by: Takashi Iwai <tiwai@suse.de>
diff --git a/sound/pci/hda/hda_intel.c b/sound/pci/hda/hda_intel.c
index 6e61a01..a0a06f7 100644
--- a/sound/pci/hda/hda_intel.c
+++ b/sound/pci/hda/hda_intel.c
@@ -2986,7 +2986,8 @@
STATESTS_INT_MASK);
azx_stop_chip(chip);
- azx_enter_link_reset(chip);
+ if (!chip->bus->avoid_link_reset)
+ azx_enter_link_reset(chip);
azx_clear_irq_pending(chip);
if (chip->driver_caps & AZX_DCAPS_I915_POWERWELL)
hda_display_power(false);