amp_muter_gpio 481 arch/arm/mach-imx/mach-imx27_visstrim_m10.c .amp_muter_gpio = AMP_MUTE_SDR, amp_muter_gpio 9 include/linux/platform_data/asoc-mx27vis.h int amp_muter_gpio; amp_muter_gpio 176 sound/soc/fsl/mx27vis-aic32x4.c mx27vis_amp_muter_gpio = pdata->amp_muter_gpio;