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Tomas Espeleta committed a2ef03fe617
ALSA: hda - Add a quirk model for fixing Huawei Matebook X right speaker [ This is rather a revival of the patch Tomas sent in months ago, but applying only with the quirk model option -- tiwai ] Hard coded coefficients to make Huawuei Matebook X right speaker work. The Matebook X has a ALC298, please refer to bug 197801 on how these numbers were reverse engineered from the Windows driver The reversed engineered sequence represents a repeating pattern of verbs, and the only values that are changing periodically are written on indexes 0x23 and 0x25: 0x500, 0x23 0x400, VALUE1 0x500, 0x25 0x400, VALUE2 * skipped reading sequences (0x500 - 0xc00 sequences are ignored) * static values from reverse engineering are used NOTE: since a significant risk is still considered, this is provided as an experimental fix that isn't applied as default for now. For enabling the fix, you'll have to choose huawei-mbx-stereo via model option of snd-hda-intel module. If we get feedback from users that this works stably, we may apply it per default. [ Some coding style fixes and replacement with AC_VERB_* by tiwai ] BugLink: https://bugzilla.kernel.org/show_bug.cgi?id=197801 Signed-off-by: Tomas Espeleta <tomas.espeleta@gmail.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>