MCLK_PIN          436 sound/soc/at32/playpaq_wm8510.c 	at32_select_periph(MCLK_PIN, MCLK_PERIPH, 0);
MCLK_PIN          507 sound/soc/at32/playpaq_wm8510.c 	at32_free_pin(MCLK_PIN);