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Commit 4dc1f87f authored by Takashi Iwai's avatar Takashi Iwai
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ALSA: hda - Add upper-limit of mixer amp for AD1884A-laptop model, too 



Add the upper-limit of mixer amp for AD1884A-laptop model just like
the mobile model for some HP laptops.

Signed-off-by: default avatarTakashi Iwai <tiwai@suse.de>
parent ffd0e56c

sound/pci/hda/patch_analog.c

+8 −0
Original line number Original line Diff line number Diff line
@@ -3977,6 +3977,14 @@ static int patch_ad1884a(struct hda_codec *codec) 
		spec->input_mux = &ad1884a_laptop_capture_source;

		spec->input_mux = &ad1884a_laptop_capture_source;

		codec->patch_ops.unsol_event = ad1884a_hp_unsol_event;

		codec->patch_ops.unsol_event = ad1884a_hp_unsol_event;

		codec->patch_ops.init = ad1884a_hp_init;

		codec->patch_ops.init = ad1884a_hp_init;

		/* set the upper-limit for mixer amp to 0dB for avoiding the

		 * possible damage by overloading

		 */

		snd_hda_override_amp_caps(codec, 0x20, HDA_INPUT,

					  (0x17 << AC_AMPCAP_OFFSET_SHIFT) |

					  (0x17 << AC_AMPCAP_NUM_STEPS_SHIFT) |

					  (0x05 << AC_AMPCAP_STEP_SIZE_SHIFT) |

					  (1 << AC_AMPCAP_MUTE_SHIFT));

		break;

		break;

	case AD1884A_MOBILE:

	case AD1884A_MOBILE:

		spec->mixers[0] = ad1884a_mobile_mixers;

		spec->mixers[0] = ad1884a_mobile_mixers;