1 /* SPDX-License-Identifier: GPL-2.0+ */ 2 /* 3 * s3c24xx-i2s.c -- ALSA Soc Audio Layer 4 * 5 * Copyright 2005 Wolfson Microelectronics PLC. 6 * Author: Graeme Gregory 7 * graeme.gregory@wolfsonmicro.com or linux@wolfsonmicro.com 8 * 9 * Revision history 10 * 10th Nov 2006 Initial version. 11 */ 12 13 #ifndef S3C24XXI2S_H_ 14 #define S3C24XXI2S_H_ 15 16 /* clock sources */ 17 #define S3C24XX_CLKSRC_PCLK 0 18 #define S3C24XX_CLKSRC_MPLL 1 19 20 /* Clock dividers */ 21 #define S3C24XX_DIV_MCLK 0 22 #define S3C24XX_DIV_BCLK 1 23 #define S3C24XX_DIV_PRESCALER 2 24 25 /* prescaler */ 26 #define S3C24XX_PRESCALE(a,b) \ 27 (((a - 1) << S3C2410_IISPSR_INTSHIFT) | ((b - 1) << S3C2410_IISPSR_EXTSHFIT)) 28 29 u32 s3c24xx_i2s_get_clockrate(void); 30 31 #endif /*S3C24XXI2S_H_*/ 32