From e3c6de48133ff1355f14a31a74a9027834c0fd65 Mon Sep 17 00:00:00 2001 From: Kuninori Morimoto Date: Wed, 2 Aug 2017 10:26:09 +0000 Subject: ASoC: rcar: unregister fixed rate on ADG ADG is registering fixed rate clock for audio_clkout, but it had not been unregister clock when removing. Salvator-X board is using ak4613 driver now, and it supports hw_constraints from commit 907cd8809eebc ("ASoC: ak4613: add hw_constraint rule for Sampling Rate"). And this calculation is using input clk. This ak4613 input clock is ADG clkout on Salvator-X. Because ADG had not been unregister clkout when unbinding, it receives fixed rate clk register error when re-binding. Thus, ak4613 can't get correct input clock, and hw_constraints will be failed after re-binding. This means Salvator-X board can't use sound after unbind/bind. This patch solves this issue. Signed-off-by: Kuninori Morimoto Signed-off-by: Mark Brown --- sound/soc/sh/rcar/adg.c | 7 +++++++ 1 file changed, 7 insertions(+) (limited to 'sound') diff --git a/sound/soc/sh/rcar/adg.c b/sound/soc/sh/rcar/adg.c index 197cb3ec075f..5b5389e5b92b 100644 --- a/sound/soc/sh/rcar/adg.c +++ b/sound/soc/sh/rcar/adg.c @@ -610,6 +610,13 @@ void rsnd_adg_remove(struct rsnd_priv *priv) { struct device *dev = rsnd_priv_to_dev(priv); struct device_node *np = dev->of_node; + struct rsnd_adg *adg = priv->adg; + struct clk *clk; + int i; + + for_each_rsnd_clkout(clk, adg, i) + if (adg->clkout[i]) + clk_unregister_fixed_rate(adg->clkout[i]); of_clk_del_provider(np); -- cgit v1.2.3 From 597b046f0d99b0b0123a715f8c8b1ea881d2bec6 Mon Sep 17 00:00:00 2001 From: Kuninori Morimoto Date: Tue, 8 Aug 2017 01:31:39 +0000 Subject: ASoC: rsnd: control SSICR::EN correctly In case of SSI0 playback, SSI1 capture, SSI0 might be shared for clock output if clock master mode. Current rsnd driver had been assumed that SSI clock contiguous output which is needed for SSI parent needs SSICR::EN (SSI module enable) bit. But, this bit controls data input/output, not for clock. Clock contiguous output needs SSICR : FORCE, SCKD, SWSD, and SSIWSR : CONT. Not SSICR : EN. Because of this wrong assumption, and insufficient control, on current code, for example, if it starts SSI0(playback) -> SSI1(capture) order, SSI0 SSICR::EN bit will temporarily be 0. It causes playback side underrun error. This is bug. We can reproduce this issue with SSI+SRC (without DVC), and capture during playback operation. This patch fixup current (wrong) assumption, and control SSICR::EN bit correctly. Reported-by: Hiroyuki Yokoyama Signed-off-by: Kuninori Morimoto Tested-by: Hiroyuki Yokoyama Signed-off-by: Mark Brown --- sound/soc/sh/rcar/ssi.c | 40 +++++++++++++++++++++++++++++++--------- 1 file changed, 31 insertions(+), 9 deletions(-) (limited to 'sound') diff --git a/sound/soc/sh/rcar/ssi.c b/sound/soc/sh/rcar/ssi.c index 46feddd78ee2..c5d5c64152e9 100644 --- a/sound/soc/sh/rcar/ssi.c +++ b/sound/soc/sh/rcar/ssi.c @@ -72,6 +72,7 @@ struct rsnd_ssi { u32 cr_own; u32 cr_clk; u32 cr_mode; + u32 cr_en; u32 wsr; int chan; int rate; @@ -291,6 +292,16 @@ static int rsnd_ssi_master_clk_start(struct rsnd_mod *mod, if (ret < 0) return ret; + /* + * SSI clock will be output contiguously + * by below settings. + * This means, rsnd_ssi_master_clk_start() + * and rsnd_ssi_register_setup() are necessary + * for SSI parent + * + * SSICR : FORCE, SCKD, SWSD + * SSIWSR : CONT + */ ssi->cr_clk = FORCE | SWL_32 | SCKD | SWSD | CKDV(idx); ssi->wsr = CONT; ssi->rate = rate; @@ -393,7 +404,8 @@ static void rsnd_ssi_register_setup(struct rsnd_mod *mod) rsnd_mod_write(mod, SSIWSR, ssi->wsr); rsnd_mod_write(mod, SSICR, ssi->cr_own | ssi->cr_clk | - ssi->cr_mode); /* without EN */ + ssi->cr_mode | + ssi->cr_en); } static void rsnd_ssi_pointer_init(struct rsnd_mod *mod, @@ -544,6 +556,8 @@ static int rsnd_ssi_start(struct rsnd_mod *mod, struct rsnd_dai_stream *io, struct rsnd_priv *priv) { + struct rsnd_ssi *ssi = rsnd_mod_to_ssi(mod); + if (!rsnd_ssi_is_run_mods(mod, io)) return 0; @@ -554,7 +568,19 @@ static int rsnd_ssi_start(struct rsnd_mod *mod, if (rsnd_ssi_multi_slaves_runtime(io)) return 0; - rsnd_mod_bset(mod, SSICR, EN, EN); + /* + * EN is for data output. + * SSI parent EN is not needed. + */ + if (rsnd_ssi_is_parent(mod, io)) + return 0; + + ssi->cr_en = EN; + + rsnd_mod_write(mod, SSICR, ssi->cr_own | + ssi->cr_clk | + ssi->cr_mode | + ssi->cr_en); return 0; } @@ -569,13 +595,7 @@ static int rsnd_ssi_stop(struct rsnd_mod *mod, if (!rsnd_ssi_is_run_mods(mod, io)) return 0; - /* - * don't stop if not last user - * see also - * rsnd_ssi_start - * rsnd_ssi_interrupt - */ - if (ssi->usrcnt > 1) + if (rsnd_ssi_is_parent(mod, io)) return 0; /* @@ -595,6 +615,8 @@ static int rsnd_ssi_stop(struct rsnd_mod *mod, rsnd_mod_write(mod, SSICR, cr); /* disabled all */ rsnd_ssi_status_check(mod, IIRQ); + ssi->cr_en = 0; + return 0; } -- cgit v1.2.3 From 29d03ff5c752e02918e8319fdcc86faa374d36ec Mon Sep 17 00:00:00 2001 From: Kuninori Morimoto Date: Wed, 9 Aug 2017 01:46:23 +0000 Subject: ASoC: rsnd: remove 16ch support for now R-Car Gen3 sound device can use TDM 16ch, but its usage is very limited. It is not yet supported. Let's remove unexpected/unsupported channel settings for now. This patch makes xx_ADINR register settings sanity without runtime check. R-Car Gen3 datasheet 40.4.7 Note on Usage of the SSIU Module When an SSIU module is used in "TDM-16ch mode", only the transfer with the external memory is available. Reported-by: Nguyen Viet Dung Signed-off-by: Kuninori Morimoto Signed-off-by: Mark Brown --- sound/soc/sh/rcar/core.c | 7 +++---- 1 file changed, 3 insertions(+), 4 deletions(-) (limited to 'sound') diff --git a/sound/soc/sh/rcar/core.c b/sound/soc/sh/rcar/core.c index 3f2ced26ed37..7fa40fcad59e 100644 --- a/sound/soc/sh/rcar/core.c +++ b/sound/soc/sh/rcar/core.c @@ -726,7 +726,6 @@ static int rsnd_soc_set_dai_tdm_slot(struct snd_soc_dai *dai, case 2: case 6: case 8: - case 16: /* TDM Extend Mode */ rsnd_rdai_channels_set(rdai, slots); rsnd_rdai_ssi_lane_set(rdai, 1); @@ -740,7 +739,7 @@ static int rsnd_soc_set_dai_tdm_slot(struct snd_soc_dai *dai, } static unsigned int rsnd_soc_hw_channels_list[] = { - 2, 6, 8, 16, + 2, 6, 8, }; static unsigned int rsnd_soc_hw_rate_list[] = { @@ -1017,7 +1016,7 @@ static void __rsnd_dai_probe(struct rsnd_priv *priv, drv->playback.rates = RSND_RATES; drv->playback.formats = RSND_FMTS; drv->playback.channels_min = 2; - drv->playback.channels_max = 16; + drv->playback.channels_max = 8; drv->playback.stream_name = rdai->playback.name; snprintf(rdai->capture.name, RSND_DAI_NAME_SIZE, @@ -1025,7 +1024,7 @@ static void __rsnd_dai_probe(struct rsnd_priv *priv, drv->capture.rates = RSND_RATES; drv->capture.formats = RSND_FMTS; drv->capture.channels_min = 2; - drv->capture.channels_max = 16; + drv->capture.channels_max = 8; drv->capture.stream_name = rdai->capture.name; rdai->playback.rdai = rdai; -- cgit v1.2.3 From e0936c3471a8411a5df327641fa3ffe12a2fb07b Mon Sep 17 00:00:00 2001 From: Kuninori Morimoto Date: Wed, 9 Aug 2017 02:16:20 +0000 Subject: ASoC: rsnd: avoid duplicate free_irq() commit 1f8754d4daea5f ("ASoC: rsnd: don't call free_irq() on Parent SSI") fixed Parent SSI duplicate free_irq(). But on Renesas Sound, not only Parent SSI but also Multi SSI have same issue. This patch avoid duplicate free_irq() if it was not pure SSI. Fixes: 1f8754d4daea5f ("ASoC: rsnd: don't call free_irq() on Parent SSI") Signed-off-by: Kuninori Morimoto Signed-off-by: Mark Brown --- sound/soc/sh/rcar/ssi.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) (limited to 'sound') diff --git a/sound/soc/sh/rcar/ssi.c b/sound/soc/sh/rcar/ssi.c index c5d5c64152e9..90cc9c13c4e0 100644 --- a/sound/soc/sh/rcar/ssi.c +++ b/sound/soc/sh/rcar/ssi.c @@ -845,10 +845,10 @@ static int rsnd_ssi_dma_remove(struct rsnd_mod *mod, struct rsnd_priv *priv) { struct rsnd_ssi *ssi = rsnd_mod_to_ssi(mod); - struct rsnd_mod *ssi_parent_mod = rsnd_io_to_mod_ssip(io); + struct rsnd_mod *pure_ssi_mod = rsnd_io_to_mod_ssi(io); - /* Do nothing for SSI parent mod */ - if (ssi_parent_mod == mod) + /* Do nothing if non SSI (= SSI parent, multi SSI) mod */ + if (pure_ssi_mod != mod) return 0; /* PIO will request IRQ again */ -- cgit v1.2.3