xref: /linux/sound/soc/fsl/fsl_utils.h (revision 2c8d2a510c15c003749e43ac2b8e1bc79a7a00d6)
1 /* SPDX-License-Identifier: GPL-2.0 */
2 /*
3  * Freescale ALSA SoC Machine driver utility
4  *
5  * Author: Timur Tabi <timur@freescale.com>
6  *
7  * Copyright 2010 Freescale Semiconductor, Inc.
8  */
9 
10 #ifndef _FSL_UTILS_H
11 #define _FSL_UTILS_H
12 
13 #define DAI_NAME_SIZE	32
14 
15 struct snd_soc_dai_link;
16 struct device_node;
17 
18 int fsl_asoc_get_dma_channel(struct device_node *ssi_np, const char *name,
19 			     struct snd_soc_dai_link *dai,
20 			     unsigned int *dma_channel_id,
21 			     unsigned int *dma_id);
22 
23 void fsl_asoc_get_pll_clocks(struct device *dev, struct clk **pll8k_clk,
24 			     struct clk **pll11k_clk);
25 
26 void fsl_asoc_reparent_pll_clocks(struct device *dev, struct clk *clk,
27 				  struct clk *pll8k_clk,
28 				  struct clk *pll11k_clk, u64 ratio);
29 
30 void fsl_asoc_constrain_rates(struct snd_pcm_hw_constraint_list *target_constr,
31 			      const struct snd_pcm_hw_constraint_list *original_constr,
32 			      struct clk *pll8k_clk, struct clk *pll11k_clk,
33 			      struct clk *ext_clk, int *target_rates);
34 #endif /* _FSL_UTILS_H */
35