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Commit 95f74c41 authored by Takashi Iwai's avatar Takashi Iwai
Browse files

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: default avatarTakashi Iwai <tiwai@suse.de>
parent 161ebf29

sound/pci/hda/hda_codec.h

+1 −0
Original line number Diff line number Diff line
@@ -698,6 +698,7 @@ struct hda_bus { 
	unsigned int in_reset:1;	/* during reset operation */

	unsigned int power_keep_link_on:1; /* don't power off HDA link */

	unsigned int no_response_fallback:1; /* don't fallback at RIRB error */

	unsigned int avoid_link_reset:1; /* don't reset link at runtime PM */



	int primary_dig_out_type;	/* primary digital out PCM type */

};

sound/pci/hda/hda_intel.c

+2 −1
Original line number Diff line number Diff line
@@ -2986,6 +2986,7 @@ static int azx_runtime_suspend(struct device *dev) 
		  STATESTS_INT_MASK);



	azx_stop_chip(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)

sound/pci/hda/patch_sigmatel.c

+3 −1
Original line number Diff line number Diff line
@@ -2091,8 +2091,10 @@ static void stac92hd83xxx_fixup_hp_mic_led(struct hda_codec *codec, 
{

	struct sigmatel_spec *spec = codec->spec;



	if (action == HDA_FIXUP_ACT_PRE_PROBE)

	if (action == HDA_FIXUP_ACT_PRE_PROBE) {

		spec->mic_mute_led_gpio = 0x08; /* GPIO3 */

		codec->bus->avoid_link_reset = 1;

	}

}



static void stac92hd83xxx_fixup_headset_jack(struct hda_codec *codec,