linux_dsm_epyc7002/sound/soc/sh/rcar/rsnd.h

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/*
* Renesas R-Car
*
* Copyright (C) 2013 Renesas Solutions Corp.
* Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
#ifndef RSND_H
#define RSND_H
#include <linux/clk.h>
#include <linux/device.h>
#include <linux/dma-mapping.h>
#include <linux/io.h>
#include <linux/list.h>
#include <linux/module.h>
#include <linux/of_device.h>
#include <linux/of_irq.h>
#include <linux/sh_dma.h>
#include <linux/workqueue.h>
#include <sound/soc.h>
#include <sound/pcm_params.h>
#define RSND_GEN1_SRU 0
#define RSND_GEN1_ADG 1
#define RSND_GEN1_SSI 2
#define RSND_GEN2_SCU 0
#define RSND_GEN2_ADG 1
#define RSND_GEN2_SSIU 2
#define RSND_GEN2_SSI 3
#define RSND_BASE_MAX 4
/*
* pseudo register
*
* The register address offsets SRU/SCU/SSIU on Gen1/Gen2 are very different.
* This driver uses pseudo register in order to hide it.
* see gen1/gen2 for detail
*/
enum rsnd_reg {
/* SCU (SRC/SSIU/MIX/CTU/DVC) */
RSND_REG_SSI_MODE0,
RSND_REG_SSI_MODE1,
RSND_REG_SSI_CTRL, /* Gen2 only */
RSND_REG_SSI_BUSIF_MODE, /* Gen2 only */
RSND_REG_SSI_BUSIF_ADINR, /* Gen2 only */
RSND_REG_SSI_BUSIF_DALIGN, /* Gen2 only */
RSND_REG_SSI_INT_ENABLE, /* Gen2 only */
RSND_REG_SRC_BUSIF_MODE,
RSND_REG_SRC_ROUTE_MODE0,
RSND_REG_SRC_SWRSR,
RSND_REG_SRC_SRCIR,
RSND_REG_SRC_ADINR,
RSND_REG_SRC_IFSCR,
RSND_REG_SRC_IFSVR,
RSND_REG_SRC_SRCCR,
RSND_REG_SRC_CTRL, /* Gen2 only */
RSND_REG_SRC_BSDSR, /* Gen2 only */
RSND_REG_SRC_BSISR, /* Gen2 only */
RSND_REG_SRC_INT_ENABLE0, /* Gen2 only */
RSND_REG_SRC_BUSIF_DALIGN, /* Gen2 only */
RSND_REG_SRCIN_TIMSEL0, /* Gen2 only */
RSND_REG_SRCIN_TIMSEL1, /* Gen2 only */
RSND_REG_SRCIN_TIMSEL2, /* Gen2 only */
RSND_REG_SRCIN_TIMSEL3, /* Gen2 only */
RSND_REG_SRCIN_TIMSEL4, /* Gen2 only */
RSND_REG_SRCOUT_TIMSEL0, /* Gen2 only */
RSND_REG_SRCOUT_TIMSEL1, /* Gen2 only */
RSND_REG_SRCOUT_TIMSEL2, /* Gen2 only */
RSND_REG_SRCOUT_TIMSEL3, /* Gen2 only */
RSND_REG_SRCOUT_TIMSEL4, /* Gen2 only */
RSND_REG_SCU_SYS_STATUS0,
RSND_REG_SCU_SYS_STATUS1, /* Gen2 only */
RSND_REG_SCU_SYS_INT_EN0,
RSND_REG_SCU_SYS_INT_EN1, /* Gen2 only */
RSND_REG_CMD_CTRL, /* Gen2 only */
RSND_REG_CMD_ROUTE_SLCT,
RSND_REG_CMDOUT_TIMSEL, /* Gen2 only */
RSND_REG_CTU_CTUIR,
RSND_REG_CTU_ADINR,
RSND_REG_MIX_SWRSR,
RSND_REG_MIX_MIXIR,
RSND_REG_MIX_ADINR,
RSND_REG_MIX_MIXMR,
RSND_REG_MIX_MVPDR,
RSND_REG_MIX_MDBAR,
RSND_REG_MIX_MDBBR,
RSND_REG_MIX_MDBCR,
RSND_REG_MIX_MDBDR,
RSND_REG_MIX_MDBER,
RSND_REG_DVC_SWRSR,
RSND_REG_DVC_DVUIR,
RSND_REG_DVC_ADINR,
RSND_REG_DVC_DVUCR,
RSND_REG_DVC_ZCMCR,
RSND_REG_DVC_VOL0R,
RSND_REG_DVC_VOL1R,
RSND_REG_DVC_DVUER,
RSND_REG_DVC_VRCTR, /* Gen2 only */
RSND_REG_DVC_VRPDR, /* Gen2 only */
RSND_REG_DVC_VRDBR, /* Gen2 only */
/* ADG */
RSND_REG_BRRA,
RSND_REG_BRRB,
RSND_REG_SSICKR,
RSND_REG_DIV_EN, /* Gen2 only */
RSND_REG_AUDIO_CLK_SEL0,
RSND_REG_AUDIO_CLK_SEL1,
RSND_REG_AUDIO_CLK_SEL2, /* Gen2 only */
/* SSI */
RSND_REG_SSICR,
RSND_REG_SSISR,
RSND_REG_SSITDR,
RSND_REG_SSIRDR,
RSND_REG_SSIWSR,
RSND_REG_MAX,
};
struct rsnd_priv;
struct rsnd_mod;
struct rsnd_dai;
struct rsnd_dai_stream;
/*
* R-Car basic functions
*/
#define rsnd_mod_read(m, r) \
rsnd_read(rsnd_mod_to_priv(m), m, RSND_REG_##r)
#define rsnd_mod_write(m, r, d) \
rsnd_write(rsnd_mod_to_priv(m), m, RSND_REG_##r, d)
#define rsnd_mod_force_write(m, r, d) \
rsnd_force_write(rsnd_mod_to_priv(m), m, RSND_REG_##r, d)
#define rsnd_mod_bset(m, r, s, d) \
rsnd_bset(rsnd_mod_to_priv(m), m, RSND_REG_##r, s, d)
u32 rsnd_read(struct rsnd_priv *priv, struct rsnd_mod *mod, enum rsnd_reg reg);
void rsnd_write(struct rsnd_priv *priv, struct rsnd_mod *mod,
enum rsnd_reg reg, u32 data);
void rsnd_force_write(struct rsnd_priv *priv, struct rsnd_mod *mod,
enum rsnd_reg reg, u32 data);
void rsnd_bset(struct rsnd_priv *priv, struct rsnd_mod *mod, enum rsnd_reg reg,
u32 mask, u32 data);
u32 rsnd_get_adinr_bit(struct rsnd_mod *mod, struct rsnd_dai_stream *io);
u32 rsnd_get_adinr_chan(struct rsnd_mod *mod, struct rsnd_dai_stream *io);
u32 rsnd_get_dalign(struct rsnd_mod *mod, struct rsnd_dai_stream *io);
/*
* R-Car DMA
*/
struct rsnd_mod *rsnd_dma_attach(struct rsnd_dai_stream *io,
struct rsnd_mod *mod, int id);
int rsnd_dma_probe(struct rsnd_priv *priv);
ASoC: rsnd: 1st DMAC dma-names cares subnode Renesas R-Car sound (= rsnd) needs 2 DMAC which are called as Audio DMAC (= 1st DMAC) and Audio DMAC peri peri (2nd DMAC). And rsnd had assumed that 1st / 2nd DMACs are implemented as DMAEngine. But, in result of DMA ML discussion, 2nd DMAC was concluded that it is not a general purpose DMAC (2nd DMAC is for Device to Device inside sound system). Additionally, current DMAEngine can't support Device to Device, and we don't have correct DT bindings for it at this point. So the easiest solution for it is that move it from DMAEngine to rsnd driver. dma-names on DT was implemented as no difference between 1st / 2nd DMAC's, since rsnd had assumed that both DMACs are implemented as DMAEngine. That style was "src_dst". But now, 2nd DMAC was implemented as non DMAEngine, and it doesn't need dma-names anymore. So, this dma-names rule is no longer needed. And additionally, dma-names was assumed that it has all (= SSI/SSIU/SRC/DVC) nodes under sound node. In upstream code, no SoC/platform is supporting DMA for rsnd driver yet. This means there is no compatible issue if this patch changes dma-names's rule of DT. This patch assumes dma-names for 1st DMAC are tx/rx base, and listed in each SSI/SRC/DVC subnode ex) rcar_sound,dvc { dvc0: dvc@0 { dmas = <&audma0 0xbc>; dma-names = "tx"; }; ... rcar_sound,src { src0: src@0 { ... dmas = <&audma0 0x85>, <&audma1 0x9a>; dma-names = "rx", "tx"; }; ... rcar_sound,ssi { ssi0: ssi@0 { ... dmas = <&audma0 0x01>, <&audma1 0x02>, <&audma0 0x15>, <&audma1 0x16>; dma-names = "rx", "tx", "rxu", "txu"; }; ... Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2015-02-20 17:31:23 +07:00
struct dma_chan *rsnd_dma_request_channel(struct device_node *of_node,
struct rsnd_mod *mod, char *name);
/*
* R-Car sound mod
*/
enum rsnd_mod_type {
RSND_MOD_AUDMAPP,
RSND_MOD_AUDMA,
RSND_MOD_DVC,
RSND_MOD_MIX,
RSND_MOD_CTU,
RSND_MOD_CMD,
RSND_MOD_SRC,
RSND_MOD_SSIU,
RSND_MOD_SSIP, /* SSI parent */
RSND_MOD_SSI,
RSND_MOD_MAX,
};
struct rsnd_mod_ops {
char *name;
struct dma_chan* (*dma_req)(struct rsnd_dai_stream *io,
struct rsnd_mod *mod);
int (*probe)(struct rsnd_mod *mod,
struct rsnd_dai_stream *io,
struct rsnd_priv *priv);
int (*remove)(struct rsnd_mod *mod,
struct rsnd_dai_stream *io,
struct rsnd_priv *priv);
int (*init)(struct rsnd_mod *mod,
struct rsnd_dai_stream *io,
struct rsnd_priv *priv);
int (*quit)(struct rsnd_mod *mod,
struct rsnd_dai_stream *io,
struct rsnd_priv *priv);
int (*start)(struct rsnd_mod *mod,
struct rsnd_dai_stream *io,
struct rsnd_priv *priv);
int (*stop)(struct rsnd_mod *mod,
struct rsnd_dai_stream *io,
struct rsnd_priv *priv);
int (*pcm_new)(struct rsnd_mod *mod,
struct rsnd_dai_stream *io,
struct snd_soc_pcm_runtime *rtd);
int (*hw_params)(struct rsnd_mod *mod,
struct rsnd_dai_stream *io,
struct snd_pcm_substream *substream,
struct snd_pcm_hw_params *hw_params);
int (*fallback)(struct rsnd_mod *mod,
struct rsnd_dai_stream *io,
struct rsnd_priv *priv);
};
struct rsnd_dai_stream;
struct rsnd_mod {
int id;
enum rsnd_mod_type type;
struct rsnd_mod_ops *ops;
struct rsnd_priv *priv;
struct clk *clk;
};
/*
* status
*
* 0xH0000CBA
*
* A 0: probe 1: remove
* B 0: init 1: quit
* C 0: start 1: stop
*
* H is always called (see __rsnd_mod_call)
* H 0: pcm_new
* H 0: fallback
* H 0: hw_params
*/
#define __rsnd_mod_shift_probe 0
#define __rsnd_mod_shift_remove 0
#define __rsnd_mod_shift_init 4
#define __rsnd_mod_shift_quit 4
#define __rsnd_mod_shift_start 8
#define __rsnd_mod_shift_stop 8
#define __rsnd_mod_shift_pcm_new 28 /* always called */
#define __rsnd_mod_shift_fallback 28 /* always called */
#define __rsnd_mod_shift_hw_params 28 /* always called */
#define __rsnd_mod_add_probe 1
#define __rsnd_mod_add_remove -1
#define __rsnd_mod_add_init 1
#define __rsnd_mod_add_quit -1
#define __rsnd_mod_add_start 1
#define __rsnd_mod_add_stop -1
#define __rsnd_mod_add_pcm_new 0
#define __rsnd_mod_add_fallback 0
#define __rsnd_mod_add_hw_params 0
#define __rsnd_mod_call_probe 0
#define __rsnd_mod_call_remove 1
#define __rsnd_mod_call_init 0
#define __rsnd_mod_call_quit 1
#define __rsnd_mod_call_start 0
#define __rsnd_mod_call_stop 1
#define __rsnd_mod_call_pcm_new 0
#define __rsnd_mod_call_fallback 0
#define __rsnd_mod_call_hw_params 0
#define rsnd_mod_to_priv(mod) ((mod)->priv)
#define rsnd_mod_id(mod) ((mod) ? (mod)->id : -1)
#define rsnd_mod_power_on(mod) clk_enable((mod)->clk)
#define rsnd_mod_power_off(mod) clk_disable((mod)->clk)
#define rsnd_mod_get(ip) (&(ip)->mod)
int rsnd_mod_init(struct rsnd_priv *priv,
struct rsnd_mod *mod,
struct rsnd_mod_ops *ops,
struct clk *clk,
enum rsnd_mod_type type,
int id);
void rsnd_mod_quit(struct rsnd_mod *mod);
char *rsnd_mod_name(struct rsnd_mod *mod);
struct dma_chan *rsnd_mod_dma_req(struct rsnd_dai_stream *io,
struct rsnd_mod *mod);
void rsnd_mod_interrupt(struct rsnd_mod *mod,
void (*callback)(struct rsnd_mod *mod,
struct rsnd_dai_stream *io));
/*
* R-Car sound DAI
*/
#define RSND_DAI_NAME_SIZE 16
struct rsnd_dai_stream {
char name[RSND_DAI_NAME_SIZE];
struct snd_pcm_substream *substream;
struct rsnd_mod *mod[RSND_MOD_MAX];
struct rsnd_dai_path_info *info; /* rcar_snd.h */
struct rsnd_dai *rdai;
u32 mod_status[RSND_MOD_MAX];
int byte_pos;
int period_pos;
int byte_per_period;
int next_period_byte;
};
#define rsnd_io_to_mod(io, i) ((i) < RSND_MOD_MAX ? (io)->mod[(i)] : NULL)
#define rsnd_io_to_mod_ssi(io) rsnd_io_to_mod((io), RSND_MOD_SSI)
#define rsnd_io_to_mod_ssip(io) rsnd_io_to_mod((io), RSND_MOD_SSIP)
#define rsnd_io_to_mod_src(io) rsnd_io_to_mod((io), RSND_MOD_SRC)
#define rsnd_io_to_mod_ctu(io) rsnd_io_to_mod((io), RSND_MOD_CTU)
#define rsnd_io_to_mod_mix(io) rsnd_io_to_mod((io), RSND_MOD_MIX)
#define rsnd_io_to_mod_dvc(io) rsnd_io_to_mod((io), RSND_MOD_DVC)
#define rsnd_io_to_rdai(io) ((io)->rdai)
#define rsnd_io_to_priv(io) (rsnd_rdai_to_priv(rsnd_io_to_rdai(io)))
#define rsnd_io_is_play(io) (&rsnd_io_to_rdai(io)->playback == io)
#define rsnd_io_to_runtime(io) ((io)->substream ? \
(io)->substream->runtime : NULL)
int rsnd_io_is_working(struct rsnd_dai_stream *io);
struct rsnd_dai {
char name[RSND_DAI_NAME_SIZE];
struct rsnd_dai_stream playback;
struct rsnd_dai_stream capture;
struct rsnd_priv *priv;
unsigned int clk_master:1;
unsigned int bit_clk_inv:1;
unsigned int frm_clk_inv:1;
unsigned int sys_delay:1;
unsigned int data_alignment:1;
};
#define rsnd_rdai_nr(priv) ((priv)->rdai_nr)
#define rsnd_rdai_is_clk_master(rdai) ((rdai)->clk_master)
#define rsnd_rdai_to_priv(rdai) ((rdai)->priv)
#define for_each_rsnd_dai(rdai, priv, i) \
for (i = 0; \
(i < rsnd_rdai_nr(priv)) && \
((rdai) = rsnd_rdai_get(priv, i)); \
i++)
struct rsnd_dai *rsnd_rdai_get(struct rsnd_priv *priv, int id);
bool rsnd_dai_pointer_update(struct rsnd_dai_stream *io, int cnt);
void rsnd_dai_period_elapsed(struct rsnd_dai_stream *io);
int rsnd_dai_pointer_offset(struct rsnd_dai_stream *io, int additional);
int rsnd_dai_connect(struct rsnd_mod *mod,
struct rsnd_dai_stream *io,
enum rsnd_mod_type type);
#define rsnd_dai_of_node(priv) \
of_get_child_by_name(rsnd_priv_to_dev(priv)->of_node, "rcar_sound,dai")
/*
* R-Car Gen1/Gen2
*/
int rsnd_gen_probe(struct rsnd_priv *priv);
void __iomem *rsnd_gen_reg_get(struct rsnd_priv *priv,
struct rsnd_mod *mod,
enum rsnd_reg reg);
phys_addr_t rsnd_gen_get_phy_addr(struct rsnd_priv *priv, int reg_id);
/*
* R-Car ADG
*/
int rsnd_adg_ssi_clk_stop(struct rsnd_mod *mod);
int rsnd_adg_ssi_clk_try_start(struct rsnd_mod *mod, unsigned int rate);
int rsnd_adg_probe(struct rsnd_priv *priv);
void rsnd_adg_remove(struct rsnd_priv *priv);
int rsnd_adg_set_convert_clk_gen2(struct rsnd_mod *mod,
struct rsnd_dai_stream *io,
unsigned int src_rate,
unsigned int dst_rate);
int rsnd_adg_set_convert_timing_gen2(struct rsnd_mod *mod,
struct rsnd_dai_stream *io);
int rsnd_adg_set_cmd_timsel_gen2(struct rsnd_mod *mod,
struct rsnd_dai_stream *io);
/*
* R-Car sound priv
*/
struct rsnd_priv {
struct platform_device *pdev;
spinlock_t lock;
u32 flags;
#define RSND_GEN_MASK (0xF << 0)
#define RSND_GEN1 (1 << 0)
#define RSND_GEN2 (2 << 0)
/*
* below value will be filled on rsnd_gen_probe()
*/
void *gen;
/*
* below value will be filled on rsnd_adg_probe()
*/
void *adg;
/*
* below value will be filled on rsnd_dma_probe()
*/
void *dma;
/*
* below value will be filled on rsnd_ssi_probe()
*/
void *ssi;
int ssi_nr;
/*
* below value will be filled on rsnd_ssiu_probe()
*/
void *ssiu;
int ssiu_nr;
/*
* below value will be filled on rsnd_src_probe()
*/
void *src;
int src_nr;
/*
* below value will be filled on rsnd_ctu_probe()
*/
void *ctu;
int ctu_nr;
/*
* below value will be filled on rsnd_mix_probe()
*/
void *mix;
int mix_nr;
/*
* below value will be filled on rsnd_dvc_probe()
*/
void *dvc;
int dvc_nr;
/*
* below value will be filled on rsnd_cmd_probe()
*/
void *cmd;
int cmd_nr;
/*
* below value will be filled on rsnd_dai_probe()
*/
struct snd_soc_dai_driver *daidrv;
struct rsnd_dai *rdai;
int rdai_nr;
};
#define rsnd_priv_to_pdev(priv) ((priv)->pdev)
#define rsnd_priv_to_dev(priv) (&(rsnd_priv_to_pdev(priv)->dev))
#define rsnd_is_gen1(priv) (((priv)->flags & RSND_GEN_MASK) == RSND_GEN1)
#define rsnd_is_gen2(priv) (((priv)->flags & RSND_GEN_MASK) == RSND_GEN2)
/*
* rsnd_kctrl
*/
struct rsnd_kctrl_cfg {
unsigned int max;
unsigned int size;
u32 *val;
const char * const *texts;
void (*update)(struct rsnd_dai_stream *io, struct rsnd_mod *mod);
struct rsnd_dai_stream *io;
struct snd_card *card;
struct snd_kcontrol *kctrl;
};
#define RSND_DVC_CHANNELS 2
struct rsnd_kctrl_cfg_m {
struct rsnd_kctrl_cfg cfg;
u32 val[RSND_DVC_CHANNELS];
};
struct rsnd_kctrl_cfg_s {
struct rsnd_kctrl_cfg cfg;
u32 val;
};
void _rsnd_kctrl_remove(struct rsnd_kctrl_cfg *cfg);
#define rsnd_kctrl_remove(_cfg) _rsnd_kctrl_remove(&((_cfg).cfg))
int rsnd_kctrl_new_m(struct rsnd_mod *mod,
struct rsnd_dai_stream *io,
struct snd_soc_pcm_runtime *rtd,
const unsigned char *name,
void (*update)(struct rsnd_dai_stream *io,
struct rsnd_mod *mod),
struct rsnd_kctrl_cfg_m *_cfg,
u32 max);
int rsnd_kctrl_new_s(struct rsnd_mod *mod,
struct rsnd_dai_stream *io,
struct snd_soc_pcm_runtime *rtd,
const unsigned char *name,
void (*update)(struct rsnd_dai_stream *io,
struct rsnd_mod *mod),
struct rsnd_kctrl_cfg_s *_cfg,
u32 max);
int rsnd_kctrl_new_e(struct rsnd_mod *mod,
struct rsnd_dai_stream *io,
struct snd_soc_pcm_runtime *rtd,
const unsigned char *name,
struct rsnd_kctrl_cfg_s *_cfg,
void (*update)(struct rsnd_dai_stream *io,
struct rsnd_mod *mod),
const char * const *texts,
u32 max);
/*
* R-Car SSI
*/
int rsnd_ssi_probe(struct rsnd_priv *priv);
void rsnd_ssi_remove(struct rsnd_priv *priv);
struct rsnd_mod *rsnd_ssi_mod_get(struct rsnd_priv *priv, int id);
int rsnd_ssi_is_dma_mode(struct rsnd_mod *mod);
int rsnd_ssi_use_busif(struct rsnd_dai_stream *io);
#define rsnd_ssi_is_pin_sharing(io) \
__rsnd_ssi_is_pin_sharing(rsnd_io_to_mod_ssi(io))
int __rsnd_ssi_is_pin_sharing(struct rsnd_mod *mod);
#define rsnd_ssi_of_node(priv) \
of_get_child_by_name(rsnd_priv_to_dev(priv)->of_node, "rcar_sound,ssi")
/*
* R-Car SSIU
*/
int rsnd_ssiu_attach(struct rsnd_dai_stream *io,
struct rsnd_mod *mod);
int rsnd_ssiu_probe(struct rsnd_priv *priv);
void rsnd_ssiu_remove(struct rsnd_priv *priv);
/*
* R-Car SRC
*/
int rsnd_src_probe(struct rsnd_priv *priv);
void rsnd_src_remove(struct rsnd_priv *priv);
struct rsnd_mod *rsnd_src_mod_get(struct rsnd_priv *priv, int id);
unsigned int rsnd_src_get_ssi_rate(struct rsnd_priv *priv,
struct rsnd_dai_stream *io,
struct snd_pcm_runtime *runtime);
#define rsnd_src_of_node(priv) \
of_get_child_by_name(rsnd_priv_to_dev(priv)->of_node, "rcar_sound,src")
/*
* R-Car CTU
*/
int rsnd_ctu_probe(struct rsnd_priv *priv);
void rsnd_ctu_remove(struct rsnd_priv *priv);
struct rsnd_mod *rsnd_ctu_mod_get(struct rsnd_priv *priv, int id);
#define rsnd_ctu_of_node(priv) \
of_get_child_by_name(rsnd_priv_to_dev(priv)->of_node, "rcar_sound,ctu")
/*
* R-Car MIX
*/
int rsnd_mix_probe(struct rsnd_priv *priv);
void rsnd_mix_remove(struct rsnd_priv *priv);
struct rsnd_mod *rsnd_mix_mod_get(struct rsnd_priv *priv, int id);
#define rsnd_mix_of_node(priv) \
of_get_child_by_name(rsnd_priv_to_dev(priv)->of_node, "rcar_sound,mix")
/*
* R-Car DVC
*/
int rsnd_dvc_probe(struct rsnd_priv *priv);
void rsnd_dvc_remove(struct rsnd_priv *priv);
struct rsnd_mod *rsnd_dvc_mod_get(struct rsnd_priv *priv, int id);
#define rsnd_dvc_of_node(priv) \
of_get_child_by_name(rsnd_priv_to_dev(priv)->of_node, "rcar_sound,dvc")
/*
* R-Car CMD
*/
int rsnd_cmd_probe(struct rsnd_priv *priv);
void rsnd_cmd_remove(struct rsnd_priv *priv);
int rsnd_cmd_attach(struct rsnd_dai_stream *io, int id);
struct rsnd_mod *rsnd_cmd_mod_get(struct rsnd_priv *priv, int id);
#ifdef DEBUG
void rsnd_mod_make_sure(struct rsnd_mod *mod, enum rsnd_mod_type type);
#define rsnd_mod_confirm_ssi(mssi) rsnd_mod_make_sure(mssi, RSND_MOD_SSI)
#define rsnd_mod_confirm_src(msrc) rsnd_mod_make_sure(msrc, RSND_MOD_SRC)
#define rsnd_mod_confirm_dvc(mdvc) rsnd_mod_make_sure(mdvc, RSND_MOD_DVC)
#else
#define rsnd_mod_confirm_ssi(mssi)
#define rsnd_mod_confirm_src(msrc)
#define rsnd_mod_confirm_dvc(mdvc)
#endif
#endif