From: Kuninori Morimoto kuninori.morimoto.gx@renesas.com

Gen2 has BUSIF0-3, Gen3 has BUSIF0-7 on some SSIU. Current driver is assuming it is using BUSIF0 as default. Thus, SSI is attaching SSIU (with BUSIF0) by using rsnd_ssiu_attach(). But, TDM split mode also needs other BUSIF to use it. This patch adds missing SSIU BUSIFx support.

BUSIF is handled by SSIU instead of SSI anymore. Thus, its settings no longer needed on SSI node on DT. This patch removes its settings from Document, but driver is still keeping compatibility. Thus, old DT style is still working. But, to avoid confusing, it doesn't indicate old compatiblity things on Document. New SoC should have SSIU on DT from this patch.

1) old style DT is still supported (= no rcar_sound,ssiu node on DT) 2) If ssiu is not indicated on playback/capture, BUSIF0 will be used as default playback = <&ssi3>; /* ssiu30 will be selected */ 3) you can select own ssiu playback = <&ssi32 &ssi3>; /* ssiu32 will be selected */

Not-yet-Signed-off-by: Kuninori Morimoto kuninori.morimoto.gx@renesas.com ---

Jiada

This patch supports BUSIF, you can select it on DT. Is this style OK for you ? For example

playback = <&src0 &dvc0 &ssiu02 &ssi0>; ~~~~~~~

It is keeping compatiblity. no <&ssiu> is still OK

playback = <&src0 &dvc0 &ssi0>;

.../devicetree/bindings/sound/renesas,rsnd.txt | 78 ++++----- sound/soc/sh/rcar/core.c | 1 + sound/soc/sh/rcar/dma.c | 37 ++++- sound/soc/sh/rcar/rsnd.h | 6 +- sound/soc/sh/rcar/ssi.c | 22 +-- sound/soc/sh/rcar/ssiu.c | 178 +++++++++++++++++++-- 6 files changed, 255 insertions(+), 67 deletions(-)

diff --git a/Documentation/devicetree/bindings/sound/renesas,rsnd.txt b/Documentation/devicetree/bindings/sound/renesas,rsnd.txt index d92b705..8dfbe5b 100644 --- a/Documentation/devicetree/bindings/sound/renesas,rsnd.txt +++ b/Documentation/devicetree/bindings/sound/renesas,rsnd.txt @@ -363,6 +363,9 @@ Required properties: - rcar_sound,ssi : Should contain SSI feature. The number of SSI subnode should be same as HW. see below for detail. +- rcar_sound,ssiu : Should contain SSIU feature. + The number of SSIU subnode should be same as HW. + see below for detail. - rcar_sound,src : Should contain SRC feature. The number of SRC subnode should be same as HW. see below for detail. @@ -532,56 +535,55 @@ rcar_sound: sound@ec500000 { }; };

+ rcar_sound,ssiu { + ssiu00: ssiu-0 { + dmas = <&audma0 0x15>, <&audma1 0x16>; + dma-names = "rx", "tx"; + }; + ssiu01: ssiu-1 { + dmas = <&audma0 0x35>, <&audma1 0x36>; + dma-names = "rx", "tx"; + }; + + ... + + ssiu95: ssiu-49 { + dmas = <&audma0 0xA5>, <&audma1 0xA6>; + dma-names = "rx", "tx"; + }; + ssiu96: ssiu-50 { + dmas = <&audma0 0xA7>, <&audma1 0xA8>; + dma-names = "rx", "tx"; + }; + ssiu97: ssiu-51 { + dmas = <&audma0 0xA9>, <&audma1 0xAA>; + dma-names = "rx", "tx"; + }; + }; + rcar_sound,ssi { ssi0: ssi-0 { interrupts = <0 370 IRQ_TYPE_LEVEL_HIGH>; - dmas = <&audma0 0x01>, <&audma1 0x02>, <&audma0 0x15>, <&audma1 0x16>; - dma-names = "rx", "tx", "rxu", "txu"; + dmas = <&audma0 0x01>, <&audma1 0x02>; + dma-names = "rx", "tx"; }; ssi1: ssi-1 { interrupts = <0 371 IRQ_TYPE_LEVEL_HIGH>; - dmas = <&audma0 0x03>, <&audma1 0x04>, <&audma0 0x49>, <&audma1 0x4a>; - dma-names = "rx", "tx", "rxu", "txu"; - }; - ssi2: ssi-2 { - interrupts = <0 372 IRQ_TYPE_LEVEL_HIGH>; - dmas = <&audma0 0x05>, <&audma1 0x06>, <&audma0 0x63>, <&audma1 0x64>; - dma-names = "rx", "tx", "rxu", "txu"; - }; - ssi3: ssi-3 { - interrupts = <0 373 IRQ_TYPE_LEVEL_HIGH>; - dmas = <&audma0 0x07>, <&audma1 0x08>, <&audma0 0x6f>, <&audma1 0x70>; - dma-names = "rx", "tx", "rxu", "txu"; - }; - ssi4: ssi-4 { - interrupts = <0 374 IRQ_TYPE_LEVEL_HIGH>; - dmas = <&audma0 0x09>, <&audma1 0x0a>, <&audma0 0x71>, <&audma1 0x72>; - dma-names = "rx", "tx", "rxu", "txu"; - }; - ssi5: ssi-5 { - interrupts = <0 375 IRQ_TYPE_LEVEL_HIGH>; - dmas = <&audma0 0x0b>, <&audma1 0x0c>, <&audma0 0x73>, <&audma1 0x74>; - dma-names = "rx", "tx", "rxu", "txu"; - }; - ssi6: ssi-6 { - interrupts = <0 376 IRQ_TYPE_LEVEL_HIGH>; - dmas = <&audma0 0x0d>, <&audma1 0x0e>, <&audma0 0x75>, <&audma1 0x76>; - dma-names = "rx", "tx", "rxu", "txu"; - }; - ssi7: ssi-7 { - interrupts = <0 377 IRQ_TYPE_LEVEL_HIGH>; - dmas = <&audma0 0x0f>, <&audma1 0x10>, <&audma0 0x79>, <&audma1 0x7a>; - dma-names = "rx", "tx", "rxu", "txu"; + dmas = <&audma0 0x03>, <&audma1 0x04>; + dma-names = "rx", "tx"; }; + + ... + ssi8: ssi-8 { interrupts = <0 378 IRQ_TYPE_LEVEL_HIGH>; - dmas = <&audma0 0x11>, <&audma1 0x12>, <&audma0 0x7b>, <&audma1 0x7c>; - dma-names = "rx", "tx", "rxu", "txu"; + dmas = <&audma0 0x11>, <&audma1 0x12>; + dma-names = "rx", "tx"; }; ssi9: ssi-9 { interrupts = <0 379 IRQ_TYPE_LEVEL_HIGH>; - dmas = <&audma0 0x13>, <&audma1 0x14>, <&audma0 0x7d>, <&audma1 0x7e>; - dma-names = "rx", "tx", "rxu", "txu"; + dmas = <&audma0 0x13>, <&audma1 0x14>; + dma-names = "rx", "tx"; }; };

diff --git a/sound/soc/sh/rcar/core.c b/sound/soc/sh/rcar/core.c index 5e10012..fff0a3a 100644 --- a/sound/soc/sh/rcar/core.c +++ b/sound/soc/sh/rcar/core.c @@ -1121,6 +1121,7 @@ static void __rsnd_dai_probe(struct rsnd_priv *priv, break;

rsnd_parse_connect_ssi(rdai, playback, capture); + rsnd_parse_connect_ssiu(rdai, playback, capture); rsnd_parse_connect_src(rdai, playback, capture); rsnd_parse_connect_ctu(rdai, playback, capture); rsnd_parse_connect_mix(rdai, playback, capture); diff --git a/sound/soc/sh/rcar/dma.c b/sound/soc/sh/rcar/dma.c index 5daa6c9..0324a5c 100644 --- a/sound/soc/sh/rcar/dma.c +++ b/sound/soc/sh/rcar/dma.c @@ -218,7 +218,7 @@ struct dma_chan *rsnd_dma_request_channel(struct device_node *of_node, int i = 0;

for_each_child_of_node(of_node, np) { - if (i == rsnd_mod_id(mod) && (!chan)) + if (i == rsnd_mod_id_raw(mod) && (!chan)) chan = of_dma_request_slave_channel(np, name); i++; } @@ -344,14 +344,16 @@ static u32 rsnd_dmapp_get_id(struct rsnd_dai_stream *io, struct rsnd_mod *mod) { struct rsnd_mod *ssi = rsnd_io_to_mod_ssi(io); + struct rsnd_mod *ssiu = rsnd_io_to_mod_ssiu(io); struct rsnd_mod *src = rsnd_io_to_mod_src(io); struct rsnd_mod *dvc = rsnd_io_to_mod_dvc(io); const u8 *entry = NULL; int id = 255; int size = 0;

- if (mod == ssi) { - int busif = rsnd_ssi_get_busif(io); + if ((mod == ssi) || + (mod == ssiu)) { + int busif = rsnd_mod_id_sub(ssiu);

entry = gen2_id_table_ssiu; size = ARRAY_SIZE(gen2_id_table_ssiu); @@ -530,13 +532,14 @@ rsnd_gen2_dma_addr(struct rsnd_dai_stream *io, struct device *dev = rsnd_priv_to_dev(priv); phys_addr_t ssi_reg = rsnd_gen_get_phy_addr(priv, RSND_GEN2_SSI); phys_addr_t src_reg = rsnd_gen_get_phy_addr(priv, RSND_GEN2_SCU); - int is_ssi = !!(rsnd_io_to_mod_ssi(io) == mod); + int is_ssi = !!(rsnd_io_to_mod_ssi(io) == mod) || + !!(rsnd_io_to_mod_ssiu(io) == mod); int use_src = !!rsnd_io_to_mod_src(io); int use_cmd = !!rsnd_io_to_mod_dvc(io) || !!rsnd_io_to_mod_mix(io) || !!rsnd_io_to_mod_ctu(io); int id = rsnd_mod_id(mod); - int busif = rsnd_ssi_get_busif(io); + int busif = rsnd_mod_id_sub(rsnd_io_to_mod_ssiu(io)); struct dma_addr { dma_addr_t out_addr; dma_addr_t in_addr; @@ -620,7 +623,7 @@ static void rsnd_dma_of_path(struct rsnd_mod *this, struct rsnd_mod **mod_from, struct rsnd_mod **mod_to) { - struct rsnd_mod *ssi = rsnd_io_to_mod_ssi(io); + struct rsnd_mod *ssi; struct rsnd_mod *src = rsnd_io_to_mod_src(io); struct rsnd_mod *ctu = rsnd_io_to_mod_ctu(io); struct rsnd_mod *mix = rsnd_io_to_mod_mix(io); @@ -631,6 +634,28 @@ static void rsnd_dma_of_path(struct rsnd_mod *this, struct device *dev = rsnd_priv_to_dev(priv); int nr, i, idx;

+ /* + * It should use "rcar_sound,ssiu" on DT. + * But, we need to keep compatibility for old version. + * + * If it has "rcar_sound.ssiu", it will be used. + * If not, "rcar_sound.ssi" will be used. + * see + * rsnd_ssiu_dma_req() + * rsnd_ssi_dma_req() + */ + if (rsnd_ssiu_of_node(priv)) { + struct rsnd_mod *ssiu = rsnd_io_to_mod_ssiu(io); + + /* use SSIU */ + ssi = ssiu; + if (this == rsnd_io_to_mod_ssi(io)) + this = ssiu; + } else { + /* keep compatible, use SSI */ + ssi = rsnd_io_to_mod_ssi(io); + } + if (!ssi) return;

diff --git a/sound/soc/sh/rcar/rsnd.h b/sound/soc/sh/rcar/rsnd.h index 28bd90a..1875fd9 100644 --- a/sound/soc/sh/rcar/rsnd.h +++ b/sound/soc/sh/rcar/rsnd.h @@ -441,6 +441,7 @@ int rsnd_runtime_is_ssi_tdm(struct rsnd_dai_stream *io); of_get_child_by_name(rsnd_priv_to_dev(priv)->of_node, node) #define RSND_NODE_DAI "rcar_sound,dai" #define RSND_NODE_SSI "rcar_sound,ssi" +#define RSND_NODE_SSIU "rcar_sound,ssiu" #define RSND_NODE_SRC "rcar_sound,src" #define RSND_NODE_CTU "rcar_sound,ctu" #define RSND_NODE_MIX "rcar_sound,mix" @@ -715,7 +716,6 @@ 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); -int rsnd_ssi_get_busif(struct rsnd_dai_stream *io); u32 rsnd_ssi_multi_slaves_runtime(struct rsnd_dai_stream *io);

#define RSND_SSI_HDMI_PORT0 0xf0 @@ -743,6 +743,10 @@ 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); +void rsnd_parse_connect_ssiu(struct rsnd_dai *rdai, + struct device_node *playback, + struct device_node *capture); +#define rsnd_ssiu_of_node(priv) rsnd_parse_of_node(priv, RSND_NODE_SSIU)

/* * R-Car SRC diff --git a/sound/soc/sh/rcar/ssi.c b/sound/soc/sh/rcar/ssi.c index a032819..95acc8b 100644 --- a/sound/soc/sh/rcar/ssi.c +++ b/sound/soc/sh/rcar/ssi.c @@ -150,11 +150,6 @@ int rsnd_ssi_use_busif(struct rsnd_dai_stream *io) return use_busif; }

-int rsnd_ssi_get_busif(struct rsnd_dai_stream *io) -{ - return 0; /* BUSIF0 only for now */ -} - static void rsnd_ssi_status_clear(struct rsnd_mod *mod) { rsnd_mod_write(mod, SSISR, 0); @@ -761,7 +756,7 @@ static int rsnd_ssi_common_probe(struct rsnd_mod *mod, { struct device *dev = rsnd_priv_to_dev(priv); struct rsnd_ssi *ssi = rsnd_mod_to_ssi(mod); - int ret; + int ret = 0;

/* * SSIP/SSIU/IRQ are not needed on @@ -775,10 +770,6 @@ static int rsnd_ssi_common_probe(struct rsnd_mod *mod, * see rsnd_ssi_pcm_new() */

- ret = rsnd_ssiu_attach(io, mod); - if (ret < 0) - return ret; - /* * SSI might be called again as PIO fallback * It is easy to manual handling for IRQ request/free @@ -972,6 +963,17 @@ static struct dma_chan *rsnd_ssi_dma_req(struct rsnd_dai_stream *io, int is_play = rsnd_io_is_play(io); char *name;

+ /* + * It should use "rcar_sound,ssiu" on DT. + * But, we need to keep compatibility for old version. + * + * If it has "rcar_sound.ssiu", it will be used. + * If not, "rcar_sound.ssi" will be used. + * see + * rsnd_ssiu_dma_req() + * rsnd_dma_of_path() + */ + if (rsnd_ssi_use_busif(io)) name = is_play ? "rxu" : "txu"; else diff --git a/sound/soc/sh/rcar/ssiu.c b/sound/soc/sh/rcar/ssiu.c index ebcb826..20f7b04 100644 --- a/sound/soc/sh/rcar/ssiu.c +++ b/sound/soc/sh/rcar/ssiu.c @@ -12,6 +12,8 @@ struct rsnd_ssiu { struct rsnd_mod mod; u32 busif_status[8]; /* for BUSIF0 - BUSIF7 */ unsigned int usrcnt; + int id; + int id_sub; };

#define rsnd_ssiu_nr(priv) ((priv)->ssiu_nr) @@ -22,12 +24,29 @@ struct rsnd_ssiu { ((pos) = ((struct rsnd_ssiu *)(priv)->ssiu + i)); \ i++)

+/* + * SSI Gen2 Gen3 + * 0 BUSIF0-3 BUSIF0-7 + * 1 BUSIF0-3 BUSIF0-7 + * 2 BUSIF0-3 BUSIF0-7 + * 3 BUSIF0 BUSIF0-7 + * 4 BUSIF0 BUSIF0-7 + * 5 BUSIF0 BUSIF0 + * 6 BUSIF0 BUSIF0 + * 7 BUSIF0 BUSIF0 + * 8 BUSIF0 BUSIF0 + * 9 BUSIF0-3 BUSIF0-7 + * total 22 52 + */ +static const int gen2_id[] = { 0, 4, 8, 12, 13, 14, 15, 16, 17, 18 }; +static const int gen3_id[] = { 0, 8, 16, 24, 32, 40, 41, 42, 43, 44 }; + static u32 *rsnd_ssiu_get_status(struct rsnd_mod *mod, struct rsnd_dai_stream *io, enum rsnd_mod_type type) { struct rsnd_ssiu *ssiu = rsnd_mod_to_ssiu(mod); - int busif = rsnd_ssi_get_busif(io); + int busif = rsnd_mod_id_sub(mod);

return &ssiu->busif_status[busif]; } @@ -158,7 +177,7 @@ static int rsnd_ssiu_init_gen2(struct rsnd_mod *mod,

if (rsnd_ssi_use_busif(io)) { int id = rsnd_mod_id(mod); - int busif = rsnd_ssi_get_busif(io); + int busif = rsnd_mod_id_sub(mod);

/* * FIXME @@ -255,7 +274,7 @@ static int rsnd_ssiu_start_gen2(struct rsnd_mod *mod, struct rsnd_dai_stream *io, struct rsnd_priv *priv) { - int busif = rsnd_ssi_get_busif(io); + int busif = rsnd_mod_id_sub(mod);

if (!rsnd_ssi_use_busif(io)) return 0; @@ -273,7 +292,7 @@ static int rsnd_ssiu_stop_gen2(struct rsnd_mod *mod, struct rsnd_priv *priv) { struct rsnd_ssiu *ssiu = rsnd_mod_to_ssiu(mod); - int busif = rsnd_ssi_get_busif(io); + int busif = rsnd_mod_id_sub(mod);

if (!rsnd_ssi_use_busif(io)) return 0; @@ -289,8 +308,49 @@ static int rsnd_ssiu_stop_gen2(struct rsnd_mod *mod, return 0; }

+static int rsnd_ssiu_id(struct rsnd_mod *mod) +{ + struct rsnd_ssiu *ssiu = rsnd_mod_to_ssiu(mod); + + /* see rsnd_ssiu_probe() */ + return ssiu->id; +} + +static int rsnd_ssiu_id_sub(struct rsnd_mod *mod) +{ + struct rsnd_ssiu *ssiu = rsnd_mod_to_ssiu(mod); + + /* see rsnd_ssiu_probe() */ + return ssiu->id_sub; +} + +static struct dma_chan *rsnd_ssiu_dma_req(struct rsnd_dai_stream *io, + struct rsnd_mod *mod) +{ + struct rsnd_priv *priv = rsnd_mod_to_priv(mod); + int is_play = rsnd_io_is_play(io); + char *name; + + /* + * It should use "rcar_sound,ssiu" on DT. + * But, we need to keep compatibility for old version. + * + * If it has "rcar_sound.ssiu", it will be used. + * If not, "rcar_sound.ssi" will be used. + * see + * rsnd_ssi_dma_req() + * rsnd_dma_of_path() + */ + + name = is_play ? "rx" : "tx"; + + return rsnd_dma_request_channel(rsnd_ssiu_of_node(priv), + mod, name); +} + static struct rsnd_mod_ops rsnd_ssiu_ops_gen2 = { .name = SSIU_NAME, + .dma_req = rsnd_ssiu_dma_req, .init = rsnd_ssiu_init_gen2, .start = rsnd_ssiu_start_gen2, .stop = rsnd_ssiu_stop_gen2, @@ -305,26 +365,83 @@ static struct rsnd_mod *rsnd_ssiu_mod_get(struct rsnd_priv *priv, int id) return rsnd_mod_get((struct rsnd_ssiu *)(priv->ssiu) + id); }

-int rsnd_ssiu_attach(struct rsnd_dai_stream *io, - struct rsnd_mod *ssi_mod) +static void rsnd_parse_connect_ssiu_compatible(struct rsnd_priv *priv, + struct rsnd_dai_stream *io) +{ + struct rsnd_mod *ssi_mod = rsnd_io_to_mod_ssi(io); + struct rsnd_mod *mod; + struct rsnd_ssiu *ssiu; + int i; + + if (!ssi_mod) + return; + + /* select BUSIF0 */ + for_each_rsnd_ssiu(ssiu, priv, i) { + mod = rsnd_mod_get(ssiu); + + if ((rsnd_mod_id(ssi_mod) == rsnd_ssiu_id(mod)) && + (rsnd_mod_id_sub(mod) == 0)) + rsnd_dai_connect(mod, io, mod->type); + } +} + +void rsnd_parse_connect_ssiu(struct rsnd_dai *rdai, + struct device_node *playback, + struct device_node *capture) { - struct rsnd_priv *priv = rsnd_io_to_priv(io); - struct rsnd_mod *mod = rsnd_ssiu_mod_get(priv, rsnd_mod_id(ssi_mod)); + struct rsnd_priv *priv = rsnd_rdai_to_priv(rdai); + struct device_node *node = rsnd_ssiu_of_node(priv); + struct device_node *np; + struct rsnd_mod *mod; + struct rsnd_dai_stream *io_p = &rdai->playback; + struct rsnd_dai_stream *io_c = &rdai->capture; + int i;

- rsnd_mod_confirm_ssi(ssi_mod); + /* use rcar_sound,ssiu if exist */ + if (node) { + i = 0; + for_each_child_of_node(node, np) { + mod = rsnd_ssiu_mod_get(priv, i); + if (np == playback) + rsnd_dai_connect(mod, io_p, mod->type); + if (np == capture) + rsnd_dai_connect(mod, io_c, mod->type); + i++; + }

- return rsnd_dai_connect(mod, io, mod->type); + of_node_put(node); + } + + /* Keep DT compatibility */ + if (!rsnd_io_to_mod_ssiu(io_p)) + rsnd_parse_connect_ssiu_compatible(priv, io_p); + if (!rsnd_io_to_mod_ssiu(io_c)) + rsnd_parse_connect_ssiu_compatible(priv, io_c); }

int rsnd_ssiu_probe(struct rsnd_priv *priv) { struct device *dev = rsnd_priv_to_dev(priv); + struct device_node *node; struct rsnd_ssiu *ssiu; struct rsnd_mod_ops *ops; + const int *list = NULL; int i, nr, ret;

- /* same number to SSI */ - nr = priv->ssi_nr; + /* + * Keep DT compatibility. + * if it has "rcar_sound,ssiu", use it. + * if not, use "rcar_sound,ssi" + * see + * rsnd_ssiu_bufsif_to_id() + */ + node = rsnd_ssiu_of_node(priv); + if (node) + nr = of_get_child_count(node); + else + nr = priv->ssi_nr; + ssiu = devm_kcalloc(dev, nr, sizeof(*ssiu), GFP_KERNEL); if (!ssiu) return -ENOMEM; @@ -337,7 +454,44 @@ int rsnd_ssiu_probe(struct rsnd_priv *priv) else ops = &rsnd_ssiu_ops_gen2;

+ /* Keep compatibility */ + nr = 0; + if ((node) && + (ops == &rsnd_ssiu_ops_gen2)) { + ops->id = rsnd_ssiu_id; + ops->id_sub = rsnd_ssiu_id_sub; + + if (rsnd_is_gen2(priv)) { + list = gen2_id; + nr = ARRAY_SIZE(gen2_id); + } else if (rsnd_is_gen3(priv)) { + list = gen3_id; + nr = ARRAY_SIZE(gen3_id); + } else { + dev_err(dev, "unknown SSIU\n"); + return -ENODEV; + } + } + for_each_rsnd_ssiu(ssiu, priv, i) { + if (node) { + int j; + + /* + * see + * rsnd_ssiu_get_id() + * rsnd_ssiu_get_id_sub() + */ + for (j = 0; j < nr; j++) { + if (list[j] > i) + break; + ssiu->id = j; + ssiu->id_sub = i - list[ssiu->id]; + } + } else { + ssiu->id = i; + } + ret = rsnd_mod_init(priv, rsnd_mod_get(ssiu), ops, NULL, RSND_MOD_SSIU, i); if (ret)