commit baaacbff64d9f34b64f294431966d035aeadb81c upstream. This platform need to set Mic VREF to 100%. Signed-off-by: Kailang Yang <kailang@realtek.com> Cc: <stable@vger.kernel.org> Link: https://lore.kernel.org/r/0916af40f08a4348a3298a9a59e6967e@realtek.com Signed-off-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>