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Commit 48ecb7e8 authored by Takashi Iwai's avatar Takashi Iwai Committed by Jaroslav Kysela
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[ALSA] hda-codec - Avoid overload of PCM volume on Cx5045 codec 



The PCM volume of Cx5045 codec has overload that isn't useful but
rather harmful.  Add a hack to override the amp info to set the max
level 0 dB.

Signed-off-by: default avatarTakashi Iwai <tiwai@suse.de>
Signed-off-by: default avatarJaroslav Kysela <perex@perex.cz>
parent 8e9068b1

sound/pci/hda/patch_conexant.c

+11 −0
Original line number Diff line number Diff line
@@ -826,6 +826,17 @@ static int patch_cxt5045(struct hda_codec *codec) 
		spec->init_verbs[0] = cxt5045_test_init_verbs;

#endif	

	}



	/*

	 * Fix max PCM level to 0 dB

	 * (originall it has 0x2b steps with 0dB offset 0x14)

	 */

	snd_hda_override_amp_caps(codec, 0x17, HDA_INPUT,

				  (0x14 << AC_AMPCAP_OFFSET_SHIFT) |

				  (0x14 << AC_AMPCAP_NUM_STEPS_SHIFT) |

				  (0x05 << AC_AMPCAP_STEP_SIZE_SHIFT) |

				  (1 << AC_AMPCAP_MUTE_SHIFT));



	return 0;

}