SPDIFRX_IR_CSC
if (pending & SPDIFRX_IR_CSC(ch)) {
regmap_write(dev->regmap, SPDIFRX_IDR, SPDIFRX_IR_CSC(ch));
regmap_write(dev->regmap, SPDIFRX_IER, SPDIFRX_IR_CSC(channel));
regmap_write(dev->regmap, SPDIFRX_IDR, SPDIFRX_IR_CSC(channel));