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| author | Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> | 2021-05-27 04:41:36 +0200 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2021-05-27 12:15:31 +0200 |
| commit | 1f9c82b5ab83ff24f5c2b62bf9a912e4aef8905e (patch) | |
| tree | dd457236376b58e3caf43186657d8cc8916f9818 /sound/soc/sh/rcar/dma.c | |
| parent | ASoC: rsnd: incidate irq error message (diff) | |
| download | linux-1f9c82b5ab83ff24f5c2b62bf9a912e4aef8905e.tar.xz linux-1f9c82b5ab83ff24f5c2b62bf9a912e4aef8905e.zip | |
ASoC: rsnd: add debugfs support
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>
Message-Id: <87y2c0lwyn.wl-kuninori.morimoto.gx@renesas.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'sound/soc/sh/rcar/dma.c')
| -rw-r--r-- | sound/soc/sh/rcar/dma.c | 31 |
1 files changed, 26 insertions, 5 deletions
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; |