From: Kuninori Morimoto kuninori.morimoto.gx@renesas.com
Current rsnd supports #define DEBUG, but it is not helpful if issue happen after 4-5 hours. This patch adds debugfs support for it.
Signed-off-by: Kuninori Morimoto kuninori.morimoto.gx@renesas.com --- sound/soc/sh/rcar/Makefile | 2 +- sound/soc/sh/rcar/adg.c | 35 ++++++++++---- sound/soc/sh/rcar/cmd.c | 14 ++++++ sound/soc/sh/rcar/core.c | 1 + sound/soc/sh/rcar/ctu.c | 14 ++++++ sound/soc/sh/rcar/debugfs.c | 96 +++++++++++++++++++++++++++++++++++++ sound/soc/sh/rcar/dma.c | 31 ++++++++++-- sound/soc/sh/rcar/dvc.c | 14 ++++++ sound/soc/sh/rcar/gen.c | 9 ++++ sound/soc/sh/rcar/mix.c | 14 ++++++ sound/soc/sh/rcar/rsnd.h | 20 ++++++++ sound/soc/sh/rcar/src.c | 20 ++++++++ sound/soc/sh/rcar/ssi.c | 29 +++++++++++ sound/soc/sh/rcar/ssiu.c | 14 ++++++ 14 files changed, 298 insertions(+), 15 deletions(-) create mode 100644 sound/soc/sh/rcar/debugfs.c
diff --git a/sound/soc/sh/rcar/Makefile b/sound/soc/sh/rcar/Makefile index 5d1ff8ef26f9..d07eccfa3ac2 100644 --- a/sound/soc/sh/rcar/Makefile +++ b/sound/soc/sh/rcar/Makefile @@ -1,3 +1,3 @@ # SPDX-License-Identifier: GPL-2.0 -snd-soc-rcar-objs := core.o gen.o dma.o adg.o ssi.o ssiu.o src.o ctu.o mix.o dvc.o cmd.o +snd-soc-rcar-objs := core.o gen.o dma.o adg.o ssi.o ssiu.o src.o ctu.o mix.o dvc.o cmd.o debugfs.o obj-$(CONFIG_SND_SOC_RCAR) += snd-soc-rcar.o diff --git a/sound/soc/sh/rcar/adg.c b/sound/soc/sh/rcar/adg.c index 774a72a7b6a2..78916332c22f 100644 --- a/sound/soc/sh/rcar/adg.c +++ b/sound/soc/sh/rcar/adg.c @@ -583,32 +583,49 @@ static void rsnd_adg_get_clkout(struct rsnd_priv *priv, adg->rbgb = rbgb; }
-#ifdef DEBUG -static void rsnd_adg_clk_dbg_info(struct rsnd_priv *priv, struct rsnd_adg *adg) +#if defined(DEBUG) || defined(CONFIG_DEBUG_FS) +static void dbg_msg(struct device *dev, struct seq_file *m, + const char *fmt, ...) { + char msg[128]; + va_list args; + + va_start(args, fmt); + vsnprintf(msg, sizeof(msg), fmt, args); + va_end(args); + + if (m) + seq_puts(m, msg); + else + dev_dbg(dev, "%s", msg); +} + +void rsnd_adg_clk_dbg_info(struct rsnd_priv *priv, struct seq_file *m) +{ + struct rsnd_adg *adg = rsnd_priv_to_adg(priv); struct device *dev = rsnd_priv_to_dev(priv); struct clk *clk; int i;
for_each_rsnd_clk(clk, adg, i) - dev_dbg(dev, "%s : %pa : %ld\n", + dbg_msg(dev, m, "%s : %pa : %ld\n", clk_name[i], clk, clk_get_rate(clk));
- dev_dbg(dev, "BRGCKR = 0x%08x, BRRA/BRRB = 0x%x/0x%x\n", + dbg_msg(dev, m, "BRGCKR = 0x%08x, BRRA/BRRB = 0x%x/0x%x\n", adg->ckr, adg->rbga, adg->rbgb); - dev_dbg(dev, "BRGA (for 44100 base) = %d\n", adg->rbga_rate_for_441khz); - dev_dbg(dev, "BRGB (for 48000 base) = %d\n", adg->rbgb_rate_for_48khz); + dbg_msg(dev, m, "BRGA (for 44100 base) = %d\n", adg->rbga_rate_for_441khz); + dbg_msg(dev, m, "BRGB (for 48000 base) = %d\n", adg->rbgb_rate_for_48khz);
/* * Actual CLKOUT will be exchanged in rsnd_adg_ssi_clk_try_start() * by BRGCKR::BRGCKR_31 */ for_each_rsnd_clkout(clk, adg, i) - dev_dbg(dev, "clkout %d : %pa : %ld\n", i, + dbg_msg(dev, m, "clkout %d : %pa : %ld\n", i, clk, clk_get_rate(clk)); } #else -#define rsnd_adg_clk_dbg_info(priv, adg) +#define rsnd_adg_clk_dbg_info(priv, m) #endif
int rsnd_adg_probe(struct rsnd_priv *priv) @@ -628,11 +645,11 @@ int rsnd_adg_probe(struct rsnd_priv *priv)
rsnd_adg_get_clkin(priv, adg); rsnd_adg_get_clkout(priv, adg); - rsnd_adg_clk_dbg_info(priv, adg);
priv->adg = adg;
rsnd_adg_clk_enable(priv); + rsnd_adg_clk_dbg_info(priv, NULL);
return 0; } diff --git a/sound/soc/sh/rcar/cmd.c b/sound/soc/sh/rcar/cmd.c index 9fdb37c2cbc2..329e6ab1b222 100644 --- a/sound/soc/sh/rcar/cmd.c +++ b/sound/soc/sh/rcar/cmd.c @@ -114,12 +114,26 @@ static int rsnd_cmd_stop(struct rsnd_mod *mod, return 0; }
+#ifdef CONFIG_DEBUG_FS +static void rsnd_cmd_debug_info(struct seq_file *m, + struct rsnd_dai_stream *io, + struct rsnd_mod *mod) +{ + rsnd_debugfs_mod_reg_show(m, mod, RSND_GEN2_SCU, + 0x180 + rsnd_mod_id_raw(mod) * 0x20, 0x30); +} +#define DEBUG_INFO .debug_info = rsnd_cmd_debug_info +#else +#define DEBUG_INFO +#endif + static struct rsnd_mod_ops rsnd_cmd_ops = { .name = CMD_NAME, .init = rsnd_cmd_init, .start = rsnd_cmd_start, .stop = rsnd_cmd_stop, .get_status = rsnd_mod_get_status, + DEBUG_INFO };
static struct rsnd_mod *rsnd_cmd_mod_get(struct rsnd_priv *priv, int id) diff --git a/sound/soc/sh/rcar/core.c b/sound/soc/sh/rcar/core.c index 3de04a25e357..385d202146c6 100644 --- a/sound/soc/sh/rcar/core.c +++ b/sound/soc/sh/rcar/core.c @@ -1744,6 +1744,7 @@ int rsnd_kctrl_new(struct rsnd_mod *mod, */ static const struct snd_soc_component_driver rsnd_soc_component = { .name = "rsnd", + .probe = rsnd_debugfs_probe, .hw_params = rsnd_hw_params, .hw_free = rsnd_hw_free, .pointer = rsnd_pointer, diff --git a/sound/soc/sh/rcar/ctu.c b/sound/soc/sh/rcar/ctu.c index 20eecd088d13..6156445bcb69 100644 --- a/sound/soc/sh/rcar/ctu.c +++ b/sound/soc/sh/rcar/ctu.c @@ -275,6 +275,19 @@ static int rsnd_ctu_id_sub(struct rsnd_mod *mod) return mod->id % 4; }
+#ifdef CONFIG_DEBUG_FS +static void rsnd_ctu_debug_info(struct seq_file *m, + struct rsnd_dai_stream *io, + struct rsnd_mod *mod) +{ + rsnd_debugfs_mod_reg_show(m, mod, RSND_GEN2_SCU, + 0x500 + rsnd_mod_id_raw(mod) * 0x100, 0x100); +} +#define DEBUG_INFO .debug_info = rsnd_ctu_debug_info +#else +#define DEBUG_INFO +#endif + static struct rsnd_mod_ops rsnd_ctu_ops = { .name = CTU_NAME, .probe = rsnd_ctu_probe_, @@ -285,6 +298,7 @@ static struct rsnd_mod_ops rsnd_ctu_ops = { .id = rsnd_ctu_id, .id_sub = rsnd_ctu_id_sub, .id_cmd = rsnd_mod_id_raw, + DEBUG_INFO };
struct rsnd_mod *rsnd_ctu_mod_get(struct rsnd_priv *priv, int id) diff --git a/sound/soc/sh/rcar/debugfs.c b/sound/soc/sh/rcar/debugfs.c new file mode 100644 index 000000000000..26d3b310b9db --- /dev/null +++ b/sound/soc/sh/rcar/debugfs.c @@ -0,0 +1,96 @@ +// SPDX-License-Identifier: GPL-2.0 +// +// // Renesas R-Car debugfs support +// +// Copyright (c) 2021 Kuninori Morimoto kuninori.morimoto.gx@renesas.com +// +// > mount -t debugfs none /sys/kernel/debug +// > cd /sys/kernel/debug/asoc/rcar-sound/ec500000.sound/rdai{N}/ +// > cat playback/xxx +// > cat capture/xxx +// +#ifdef CONFIG_DEBUG_FS + +#include <linux/debugfs.h> +#include "rsnd.h" + +static int rsnd_debugfs_show(struct seq_file *m, void *v) +{ + struct rsnd_dai_stream *io = m->private; + struct rsnd_mod *mod = rsnd_io_to_mod_ssi(io); + struct rsnd_priv *priv = rsnd_mod_to_priv(mod); + int i; + + /* adg is out of mods */ + rsnd_adg_clk_dbg_info(priv, m); + + for_each_rsnd_mod(i, mod, io) { + u32 *status = mod->ops->get_status(mod, io, mod->type); + + seq_printf(m, "name: %s\n", rsnd_mod_name(mod)); + seq_printf(m, "status: %08x\n", *status); + + if (mod->ops->debug_info) + mod->ops->debug_info(m, io, mod); + } + + return 0; +} +DEFINE_SHOW_ATTRIBUTE(rsnd_debugfs); + +void rsnd_debugfs_reg_show(struct seq_file *m, phys_addr_t _addr, + void __iomem *base, int offset, int size) +{ + int i, j; + + for (i = 0; i < size; i += 0x10) { + phys_addr_t addr = _addr + offset + i; + + seq_printf(m, "%pa:", &addr); + for (j = 0; j < 0x10; j += 0x4) + seq_printf(m, " %08x", __raw_readl(base + offset + i + j)); + seq_puts(m, "\n"); + } +} + +void rsnd_debugfs_mod_reg_show(struct seq_file *m, struct rsnd_mod *mod, + int reg_id, int offset, int size) +{ + struct rsnd_priv *priv = rsnd_mod_to_priv(mod); + + rsnd_debugfs_reg_show(m, + rsnd_gen_get_phy_addr(priv, reg_id), + rsnd_gen_get_base_addr(priv, reg_id), + offset, size); +} + +int rsnd_debugfs_probe(struct snd_soc_component *component) +{ + struct rsnd_priv *priv = dev_get_drvdata(component->dev); + struct rsnd_dai *rdai; + struct dentry *dir; + char name[64]; + int i; + + /* Gen1 is not supported */ + if (rsnd_is_gen1(priv)) + return 0; + + for_each_rsnd_dai(rdai, priv, i) { + /* + * created debugfs will be automatically + * removed, nothing to do for _remove. + * see + * soc_cleanup_component_debugfs() + */ + snprintf(name, sizeof(name), "rdai%d", i); + dir = debugfs_create_dir(name, component->debugfs_root); + + debugfs_create_file("playback", 0444, dir, &rdai->playback, &rsnd_debugfs_fops); + debugfs_create_file("capture", 0444, dir, &rdai->capture, &rsnd_debugfs_fops); + } + + return 0; +} + +#endif /* CONFIG_DEBUG_FS */ diff --git a/sound/soc/sh/rcar/dma.c b/sound/soc/sh/rcar/dma.c index 95aa26d62e4f..44519929a28b 100644 --- a/sound/soc/sh/rcar/dma.c +++ b/sound/soc/sh/rcar/dma.c @@ -44,7 +44,8 @@ struct rsnd_dma { };
struct rsnd_dma_ctrl { - void __iomem *base; + void __iomem *ppbase; + phys_addr_t ppres; int dmaen_num; int dmapp_num; }; @@ -415,7 +416,7 @@ static u32 rsnd_dmapp_get_chcr(struct rsnd_dai_stream *io, }
#define rsnd_dmapp_addr(dmac, dma, reg) \ - (dmac->base + 0x20 + reg + \ + (dmac->ppbase + 0x20 + reg + \ (0x10 * rsnd_dma_to_dmapp(dma)->dmapp_id)) static void rsnd_dmapp_write(struct rsnd_dma *dma, u32 data, u32 reg) { @@ -504,12 +505,31 @@ static int rsnd_dmapp_attach(struct rsnd_dai_stream *io, return 0; }
+#ifdef CONFIG_DEBUG_FS +static void rsnd_dmapp_debug_info(struct seq_file *m, + struct rsnd_dai_stream *io, + struct rsnd_mod *mod) +{ + struct rsnd_priv *priv = rsnd_mod_to_priv(mod); + struct rsnd_dma_ctrl *dmac = rsnd_priv_to_dmac(priv); + struct rsnd_dma *dma = rsnd_mod_to_dma(mod); + struct rsnd_dmapp *dmapp = rsnd_dma_to_dmapp(dma); + + rsnd_debugfs_reg_show(m, dmac->ppres, dmac->ppbase, + 0x20 + 0x10 * dmapp->dmapp_id, 0x10); +} +#define DEBUG_INFO .debug_info = rsnd_dmapp_debug_info +#else +#define DEBUG_INFO +#endif + static struct rsnd_mod_ops rsnd_dmapp_ops = { .name = "audmac-pp", .start = rsnd_dmapp_start, .stop = rsnd_dmapp_stop, .quit = rsnd_dmapp_stop, .get_status = rsnd_mod_get_status, + DEBUG_INFO };
/* @@ -864,9 +884,10 @@ int rsnd_dma_probe(struct rsnd_priv *priv) }
dmac->dmapp_num = 0; - dmac->base = devm_ioremap_resource(dev, res); - if (IS_ERR(dmac->base)) - return PTR_ERR(dmac->base); + dmac->ppres = res->start; + dmac->ppbase = devm_ioremap_resource(dev, res); + if (IS_ERR(dmac->ppbase)) + return PTR_ERR(dmac->ppbase);
priv->dma = dmac;
diff --git a/sound/soc/sh/rcar/dvc.c b/sound/soc/sh/rcar/dvc.c index 8d91c0eb0880..1943ac1ff803 100644 --- a/sound/soc/sh/rcar/dvc.c +++ b/sound/soc/sh/rcar/dvc.c @@ -285,6 +285,19 @@ static struct dma_chan *rsnd_dvc_dma_req(struct rsnd_dai_stream *io, mod, "tx"); }
+#ifdef CONFIG_DEBUG_FS +static void rsnd_dvc_debug_info(struct seq_file *m, + struct rsnd_dai_stream *io, + struct rsnd_mod *mod) +{ + rsnd_debugfs_mod_reg_show(m, mod, RSND_GEN2_SCU, + 0xe00 + rsnd_mod_id(mod) * 0x100, 0x60); +} +#define DEBUG_INFO .debug_info = rsnd_dvc_debug_info +#else +#define DEBUG_INFO +#endif + static struct rsnd_mod_ops rsnd_dvc_ops = { .name = DVC_NAME, .dma_req = rsnd_dvc_dma_req, @@ -293,6 +306,7 @@ static struct rsnd_mod_ops rsnd_dvc_ops = { .quit = rsnd_dvc_quit, .pcm_new = rsnd_dvc_pcm_new, .get_status = rsnd_mod_get_status, + DEBUG_INFO };
struct rsnd_mod *rsnd_dvc_mod_get(struct rsnd_priv *priv, int id) diff --git a/sound/soc/sh/rcar/gen.c b/sound/soc/sh/rcar/gen.c index 8bd49c8a9517..925565baaa41 100644 --- a/sound/soc/sh/rcar/gen.c +++ b/sound/soc/sh/rcar/gen.c @@ -141,6 +141,15 @@ phys_addr_t rsnd_gen_get_phy_addr(struct rsnd_priv *priv, int reg_id) return gen->res[reg_id]; }
+#ifdef CONFIG_DEBUG_FS +void __iomem *rsnd_gen_get_base_addr(struct rsnd_priv *priv, int reg_id) +{ + struct rsnd_gen *gen = rsnd_priv_to_gen(priv); + + return gen->base[reg_id]; +} +#endif + #define rsnd_gen_regmap_init(priv, id_size, reg_id, name, conf) \ _rsnd_gen_regmap_init(priv, id_size, reg_id, name, conf, ARRAY_SIZE(conf)) static int _rsnd_gen_regmap_init(struct rsnd_priv *priv, diff --git a/sound/soc/sh/rcar/mix.c b/sound/soc/sh/rcar/mix.c index a3e0370f5704..3572c2c5686c 100644 --- a/sound/soc/sh/rcar/mix.c +++ b/sound/soc/sh/rcar/mix.c @@ -250,6 +250,19 @@ static int rsnd_mix_pcm_new(struct rsnd_mod *mod, return ret; }
+#ifdef CONFIG_DEBUG_FS +static void rsnd_mix_debug_info(struct seq_file *m, + struct rsnd_dai_stream *io, + struct rsnd_mod *mod) +{ + rsnd_debugfs_mod_reg_show(m, mod, RSND_GEN2_SCU, + 0xd00 + rsnd_mod_id(mod) * 0x40, 0x30); +} +#define DEBUG_INFO .debug_info = rsnd_mix_debug_info +#else +#define DEBUG_INFO +#endif + static struct rsnd_mod_ops rsnd_mix_ops = { .name = MIX_NAME, .probe = rsnd_mix_probe_, @@ -257,6 +270,7 @@ static struct rsnd_mod_ops rsnd_mix_ops = { .quit = rsnd_mix_quit, .pcm_new = rsnd_mix_pcm_new, .get_status = rsnd_mod_get_status, + DEBUG_INFO };
struct rsnd_mod *rsnd_mix_mod_get(struct rsnd_priv *priv, int id) diff --git a/sound/soc/sh/rcar/rsnd.h b/sound/soc/sh/rcar/rsnd.h index 9736a94b9c39..0527aa8e139c 100644 --- a/sound/soc/sh/rcar/rsnd.h +++ b/sound/soc/sh/rcar/rsnd.h @@ -345,6 +345,11 @@ struct rsnd_mod_ops { int (*id)(struct rsnd_mod *mod); int (*id_sub)(struct rsnd_mod *mod); int (*id_cmd)(struct rsnd_mod *mod); + +#ifdef CONFIG_DEBUG_FS + void (*debug_info)(struct seq_file *m, + struct rsnd_dai_stream *io, struct rsnd_mod *mod); +#endif };
struct rsnd_dai_stream; @@ -592,6 +597,9 @@ 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); +#ifdef CONFIG_DEBUG_FS +void __iomem *rsnd_gen_get_base_addr(struct rsnd_priv *priv, int reg_id); +#endif
/* * R-Car ADG @@ -610,6 +618,7 @@ int rsnd_adg_set_cmd_timsel_gen2(struct rsnd_mod *cmd_mod, #define rsnd_adg_clk_enable(priv) rsnd_adg_clk_control(priv, 1) #define rsnd_adg_clk_disable(priv) rsnd_adg_clk_control(priv, 0) void rsnd_adg_clk_control(struct rsnd_priv *priv, int enable); +void rsnd_adg_clk_dbg_info(struct rsnd_priv *priv, struct seq_file *m);
/* * R-Car sound priv @@ -897,3 +906,14 @@ void rsnd_mod_make_sure(struct rsnd_mod *mod, enum rsnd_mod_type type); dev_dbg(dev, param)
#endif + +#ifdef CONFIG_DEBUG_FS +int rsnd_debugfs_probe(struct snd_soc_component *component); +void rsnd_debugfs_reg_show(struct seq_file *m, phys_addr_t _addr, + void __iomem *base, int offset, int size); +void rsnd_debugfs_mod_reg_show(struct seq_file *m, struct rsnd_mod *mod, + int reg_id, int offset, int size); + +#else +#define rsnd_debugfs_probe NULL +#endif diff --git a/sound/soc/sh/rcar/src.c b/sound/soc/sh/rcar/src.c index 7a7d6dc335a4..8f7af3e3a1cd 100644 --- a/sound/soc/sh/rcar/src.c +++ b/sound/soc/sh/rcar/src.c @@ -597,6 +597,25 @@ static int rsnd_src_pcm_new(struct rsnd_mod *mod, return ret; }
+#ifdef CONFIG_DEBUG_FS +static void rsnd_src_debug_info(struct seq_file *m, + struct rsnd_dai_stream *io, + struct rsnd_mod *mod) +{ + rsnd_debugfs_mod_reg_show(m, mod, RSND_GEN2_SCU, + rsnd_mod_id(mod) * 0x20, 0x20); + seq_puts(m, "\n"); + rsnd_debugfs_mod_reg_show(m, mod, RSND_GEN2_SCU, + 0x1c0, 0x20); + seq_puts(m, "\n"); + rsnd_debugfs_mod_reg_show(m, mod, RSND_GEN2_SCU, + 0x200 + rsnd_mod_id(mod) * 0x40, 0x40); +} +#define DEBUG_INFO .debug_info = rsnd_src_debug_info +#else +#define DEBUG_INFO +#endif + static struct rsnd_mod_ops rsnd_src_ops = { .name = SRC_NAME, .dma_req = rsnd_src_dma_req, @@ -608,6 +627,7 @@ static struct rsnd_mod_ops rsnd_src_ops = { .irq = rsnd_src_irq, .pcm_new = rsnd_src_pcm_new, .get_status = rsnd_mod_get_status, + DEBUG_INFO };
struct rsnd_mod *rsnd_src_mod_get(struct rsnd_priv *priv, int id) diff --git a/sound/soc/sh/rcar/ssi.c b/sound/soc/sh/rcar/ssi.c index ac920800af37..551c78f47da9 100644 --- a/sound/soc/sh/rcar/ssi.c +++ b/sound/soc/sh/rcar/ssi.c @@ -1118,6 +1118,34 @@ static struct dma_chan *rsnd_ssi_dma_req(struct rsnd_dai_stream *io, mod, name); }
+#ifdef CONFIG_DEBUG_FS +static void rsnd_ssi_debug_info(struct seq_file *m, + struct rsnd_dai_stream *io, + struct rsnd_mod *mod) +{ + struct rsnd_dai *rdai = rsnd_io_to_rdai(io); + struct rsnd_ssi *ssi = rsnd_mod_to_ssi(mod); + + seq_printf(m, "clock: %s\n", rsnd_rdai_is_clk_master(rdai) ? + "provider" : "consumer"); + seq_printf(m, "bit_clk_inv: %d\n", rdai->bit_clk_inv); + seq_printf(m, "frm_clk_inv: %d\n", rdai->frm_clk_inv); + seq_printf(m, "pin share: %d\n", __rsnd_ssi_is_pin_sharing(mod)); + seq_printf(m, "can out clk: %d\n", rsnd_ssi_can_output_clk(mod)); + seq_printf(m, "multi secondary: %d\n", rsnd_ssi_is_multi_secondary(mod, io)); + seq_printf(m, "tdm: %d, %d\n", rsnd_runtime_is_tdm(io), + rsnd_runtime_is_tdm_split(io)); + seq_printf(m, "chan: %d\n", ssi->chan); + seq_printf(m, "user: %d\n", ssi->usrcnt); + + rsnd_debugfs_mod_reg_show(m, mod, RSND_GEN2_SSI, + rsnd_mod_id(mod) * 0x40, 0x40); +} +#define DEBUG_INFO .debug_info = rsnd_ssi_debug_info +#else +#define DEBUG_INFO +#endif + static struct rsnd_mod_ops rsnd_ssi_dma_ops = { .name = SSI_NAME, .dma_req = rsnd_ssi_dma_req, @@ -1132,6 +1160,7 @@ static struct rsnd_mod_ops rsnd_ssi_dma_ops = { .fallback = rsnd_ssi_fallback, .hw_params = rsnd_ssi_hw_params, .get_status = rsnd_ssi_get_status, + DEBUG_INFO };
int rsnd_ssi_is_dma_mode(struct rsnd_mod *mod) diff --git a/sound/soc/sh/rcar/ssiu.c b/sound/soc/sh/rcar/ssiu.c index 6896ff0bc89d..cb2071cbe3c6 100644 --- a/sound/soc/sh/rcar/ssiu.c +++ b/sound/soc/sh/rcar/ssiu.c @@ -314,6 +314,19 @@ static struct dma_chan *rsnd_ssiu_dma_req(struct rsnd_dai_stream *io, mod, name); }
+#ifdef CONFIG_DEBUG_FS +static void rsnd_ssiu_debug_info(struct seq_file *m, + struct rsnd_dai_stream *io, + struct rsnd_mod *mod) +{ + rsnd_debugfs_mod_reg_show(m, mod, RSND_GEN2_SSIU, + rsnd_mod_id(mod) * 0x80, 0x80); +} +#define DEBUG_INFO .debug_info = rsnd_ssiu_debug_info +#else +#define DEBUG_INFO +#endif + static struct rsnd_mod_ops rsnd_ssiu_ops_gen2 = { .name = SSIU_NAME, .dma_req = rsnd_ssiu_dma_req, @@ -321,6 +334,7 @@ static struct rsnd_mod_ops rsnd_ssiu_ops_gen2 = { .start = rsnd_ssiu_start_gen2, .stop = rsnd_ssiu_stop_gen2, .get_status = rsnd_ssiu_get_status, + DEBUG_INFO };
static struct rsnd_mod *rsnd_ssiu_mod_get(struct rsnd_priv *priv, int id)