From 2db5f9e9fa0ebc3c023f7ac906946a3eef8f5498 Mon Sep 17 00:00:00 2001 From: Colin Ian King Date: Sun, 3 Sep 2017 14:54:08 +0100 Subject: ASoC: fsl_spdif: make const arrays rate static Don't populate the const arrays rate on the stack, instead make them static. Makes the object code smaller by 220 bytes: Before: text data bss dec hex filename 24385 9776 128 34289 85f1 sound/soc/fsl/fsl_spdif.o After: text data bss dec hex filename 24005 9936 128 34069 8515 sound/soc/fsl/fsl_spdif.o Signed-off-by: Colin Ian King Signed-off-by: Mark Brown --- sound/soc/fsl/fsl_spdif.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'sound/soc/fsl') diff --git a/sound/soc/fsl/fsl_spdif.c b/sound/soc/fsl/fsl_spdif.c index 7e6cc4da0088..4f7469c1864c 100644 --- a/sound/soc/fsl/fsl_spdif.c +++ b/sound/soc/fsl/fsl_spdif.c @@ -1110,7 +1110,7 @@ static u32 fsl_spdif_txclk_caldiv(struct fsl_spdif_priv *spdif_priv, struct clk *clk, u64 savesub, enum spdif_txrate index, bool round) { - const u32 rate[] = { 32000, 44100, 48000, 96000, 192000 }; + static const u32 rate[] = { 32000, 44100, 48000, 96000, 192000 }; bool is_sysclk = clk_is_match(clk, spdif_priv->sysclk); u64 rate_ideal, rate_actual, sub; u32 sysclk_dfmin, sysclk_dfmax; @@ -1169,7 +1169,7 @@ out: static int fsl_spdif_probe_txclk(struct fsl_spdif_priv *spdif_priv, enum spdif_txrate index) { - const u32 rate[] = { 32000, 44100, 48000, 96000, 192000 }; + static const u32 rate[] = { 32000, 44100, 48000, 96000, 192000 }; struct platform_device *pdev = spdif_priv->pdev; struct device *dev = &pdev->dev; u64 savesub = 100000, ret; -- cgit v1.2.3 From b0a7043d5c2ccdd306959f295bf1a62be025cbf5 Mon Sep 17 00:00:00 2001 From: Nicolin Chen Date: Wed, 13 Sep 2017 20:07:09 -0700 Subject: ASoC: fsl_ssi: Caculate bit clock rate using slot number and width The set_sysclk() now is used to override the output bit clock rate. But this is not a common way to implement a set_dai_sysclk(). And this creates a problem when a general machine driver (simple-card for example) tries to do set_dai_sysclk() by passing an input clock rate for the baud clock instead of setting the bit clock rate as fsl_ssi driver expected. So this patch solves this problem by firstly removing set_sysclk() since the hw_params() can calculate the bit clock rate. Secondly, in order not to break those TDM use cases which previously might have been using set_sysclk() to override the bit clock rate, this patch changes the driver to calculate the bit clock rate using the slot number and the slot width from the via set_tdm_slot(). The patch also removes an obsolete comment of the dir parameter. Signed-off-by: Nicolin Chen Signed-off-by: Mark Brown --- sound/soc/fsl/fsl_ssi.c | 46 ++++++++++++++++++++++++++-------------------- 1 file changed, 26 insertions(+), 20 deletions(-) (limited to 'sound/soc/fsl') diff --git a/sound/soc/fsl/fsl_ssi.c b/sound/soc/fsl/fsl_ssi.c index 64598d1183f8..f2f51e06e22c 100644 --- a/sound/soc/fsl/fsl_ssi.c +++ b/sound/soc/fsl/fsl_ssi.c @@ -197,12 +197,13 @@ struct fsl_ssi_soc_data { * @use_dma: DMA is used or FIQ with stream filter * @use_dual_fifo: DMA with support for both FIFOs used * @fifo_deph: Depth of the SSI FIFOs + * @slot_width: width of each DAI slot + * @slots: number of slots * @rxtx_reg_val: Specific register settings for receive/transmit configuration * * @clk: SSI clock * @baudclk: SSI baud clock for master mode * @baudclk_streams: Active streams that are using baudclk - * @bitclk_freq: bitclock frequency set by .set_dai_sysclk * * @dma_params_tx: DMA transmit parameters * @dma_params_rx: DMA receive parameters @@ -233,12 +234,13 @@ struct fsl_ssi_private { bool use_dual_fifo; bool has_ipg_clk_name; unsigned int fifo_depth; + unsigned int slot_width; + unsigned int slots; struct fsl_ssi_rxtx_reg_val rxtx_reg_val; struct clk *clk; struct clk *baudclk; unsigned int baudclk_streams; - unsigned int bitclk_freq; /* regcache for volatile regs */ u32 regcache_sfcsr; @@ -700,8 +702,8 @@ static void fsl_ssi_shutdown(struct snd_pcm_substream *substream, * Note: This function can be only called when using SSI as DAI master * * Quick instruction for parameters: - * freq: Output BCLK frequency = samplerate * 32 (fixed) * channels - * dir: SND_SOC_CLOCK_OUT -> TxBCLK, SND_SOC_CLOCK_IN -> RxBCLK. + * freq: Output BCLK frequency = samplerate * slots * slot_width + * (In 2-channel I2S Master mode, slot_width is fixed 32) */ static int fsl_ssi_set_bclk(struct snd_pcm_substream *substream, struct snd_soc_dai *cpu_dai, @@ -712,15 +714,21 @@ static int fsl_ssi_set_bclk(struct snd_pcm_substream *substream, int synchronous = ssi_private->cpu_dai_drv.symmetric_rates, ret; u32 pm = 999, div2, psr, stccr, mask, afreq, factor, i; unsigned long clkrate, baudrate, tmprate; + unsigned int slots = params_channels(hw_params); + unsigned int slot_width = 32; u64 sub, savesub = 100000; unsigned int freq; bool baudclk_is_used; - /* Prefer the explicitly set bitclock frequency */ - if (ssi_private->bitclk_freq) - freq = ssi_private->bitclk_freq; - else - freq = params_channels(hw_params) * 32 * params_rate(hw_params); + /* Override slots and slot_width if being specifically set... */ + if (ssi_private->slots) + slots = ssi_private->slots; + /* ...but keep 32 bits if slots is 2 -- I2S Master mode */ + if (ssi_private->slot_width && slots != 2) + slot_width = ssi_private->slot_width; + + /* Generate bit clock based on the slot number and slot width */ + freq = slots * slot_width * params_rate(hw_params); /* Don't apply it to any non-baudclk circumstance */ if (IS_ERR(ssi_private->baudclk)) @@ -805,16 +813,6 @@ static int fsl_ssi_set_bclk(struct snd_pcm_substream *substream, return 0; } -static int fsl_ssi_set_dai_sysclk(struct snd_soc_dai *cpu_dai, - int clk_id, unsigned int freq, int dir) -{ - struct fsl_ssi_private *ssi_private = snd_soc_dai_get_drvdata(cpu_dai); - - ssi_private->bitclk_freq = freq; - - return 0; -} - /** * fsl_ssi_hw_params - program the sample size * @@ -1095,6 +1093,12 @@ static int fsl_ssi_set_dai_tdm_slot(struct snd_soc_dai *cpu_dai, u32 tx_mask, struct regmap *regs = ssi_private->regs; u32 val; + /* The word length should be 8, 10, 12, 16, 18, 20, 22 or 24 */ + if (slot_width & 1 || slot_width < 8 || slot_width > 24) { + dev_err(cpu_dai->dev, "invalid slot width: %d\n", slot_width); + return -EINVAL; + } + /* The slot number should be >= 2 if using Network mode or I2S mode */ regmap_read(regs, CCSR_SSI_SCR, &val); val &= CCSR_SSI_SCR_I2S_MODE_MASK | CCSR_SSI_SCR_NET; @@ -1121,6 +1125,9 @@ static int fsl_ssi_set_dai_tdm_slot(struct snd_soc_dai *cpu_dai, u32 tx_mask, regmap_update_bits(regs, CCSR_SSI_SCR, CCSR_SSI_SCR_SSIEN, val); + ssi_private->slot_width = slot_width; + ssi_private->slots = slots; + return 0; } @@ -1191,7 +1198,6 @@ static const struct snd_soc_dai_ops fsl_ssi_dai_ops = { .hw_params = fsl_ssi_hw_params, .hw_free = fsl_ssi_hw_free, .set_fmt = fsl_ssi_set_dai_fmt, - .set_sysclk = fsl_ssi_set_dai_sysclk, .set_tdm_slot = fsl_ssi_set_dai_tdm_slot, .trigger = fsl_ssi_trigger, }; -- cgit v1.2.3 From 758a3b0183a83a4827afc892c417cd6f8d12e189 Mon Sep 17 00:00:00 2001 From: Nicolin Chen Date: Thu, 7 Sep 2017 22:27:33 -0700 Subject: ASoC: fsl-asoc-card: Don't error out if ENOTSUPP The snd_soc_component_set_sysclk() and snd_soc_dai_set_tdm_slot() in the soc-core.c will return -ENOTSUPP if there is no function implementation for them in the dai and component drivers. So this patch tries to ignore this errno. Signed-off-by: Nicolin Chen Signed-off-by: Mark Brown --- sound/soc/fsl/fsl-asoc-card.c | 10 +++++----- 1 file changed, 5 insertions(+), 5 deletions(-) (limited to 'sound/soc/fsl') diff --git a/sound/soc/fsl/fsl-asoc-card.c b/sound/soc/fsl/fsl-asoc-card.c index 2db4d0c80d33..3772abbdd7b7 100644 --- a/sound/soc/fsl/fsl-asoc-card.c +++ b/sound/soc/fsl/fsl-asoc-card.c @@ -166,7 +166,7 @@ static int fsl_asoc_card_hw_params(struct snd_pcm_substream *substream, ret = snd_soc_dai_set_sysclk(rtd->cpu_dai, cpu_priv->sysclk_id[tx], cpu_priv->sysclk_freq[tx], cpu_priv->sysclk_dir[tx]); - if (ret) { + if (ret && ret != -ENOTSUPP) { dev_err(dev, "failed to set sysclk for cpu dai\n"); return ret; } @@ -174,7 +174,7 @@ static int fsl_asoc_card_hw_params(struct snd_pcm_substream *substream, if (cpu_priv->slot_width) { ret = snd_soc_dai_set_tdm_slot(rtd->cpu_dai, 0x3, 0x3, 2, cpu_priv->slot_width); - if (ret) { + if (ret && ret != -ENOTSUPP) { dev_err(dev, "failed to set TDM slot for cpu dai\n"); return ret; } @@ -270,7 +270,7 @@ static int fsl_asoc_card_set_bias_level(struct snd_soc_card *card, ret = snd_soc_dai_set_sysclk(codec_dai, codec_priv->fll_id, pll_out, SND_SOC_CLOCK_IN); - if (ret) { + if (ret && ret != -ENOTSUPP) { dev_err(dev, "failed to set SYSCLK: %d\n", ret); return ret; } @@ -283,7 +283,7 @@ static int fsl_asoc_card_set_bias_level(struct snd_soc_card *card, ret = snd_soc_dai_set_sysclk(codec_dai, codec_priv->mclk_id, codec_priv->mclk_freq, SND_SOC_CLOCK_IN); - if (ret) { + if (ret && ret != -ENOTSUPP) { dev_err(dev, "failed to switch away from FLL: %d\n", ret); return ret; } @@ -459,7 +459,7 @@ static int fsl_asoc_card_late_probe(struct snd_soc_card *card) ret = snd_soc_dai_set_sysclk(codec_dai, codec_priv->mclk_id, codec_priv->mclk_freq, SND_SOC_CLOCK_IN); - if (ret) { + if (ret && ret != -ENOTSUPP) { dev_err(dev, "failed to set sysclk in %s\n", __func__); return ret; } -- cgit v1.2.3 From 7add71b623a2b2abc2e0947a21fb31e2c8f71e18 Mon Sep 17 00:00:00 2001 From: Arvind Yadav Date: Thu, 21 Sep 2017 10:50:03 +0530 Subject: ASoC: fsl-asoc-card: Handle return value of devm_kasprintf devm_kasprintf() can fail here and we must check its return value. Signed-off-by: Arvind Yadav Signed-off-by: Mark Brown --- sound/soc/fsl/fsl-asoc-card.c | 4 ++++ 1 file changed, 4 insertions(+) (limited to 'sound/soc/fsl') diff --git a/sound/soc/fsl/fsl-asoc-card.c b/sound/soc/fsl/fsl-asoc-card.c index 3772abbdd7b7..1225e0399de8 100644 --- a/sound/soc/fsl/fsl-asoc-card.c +++ b/sound/soc/fsl/fsl-asoc-card.c @@ -639,6 +639,10 @@ static int fsl_asoc_card_probe(struct platform_device *pdev) devm_kasprintf(&pdev->dev, GFP_KERNEL, "ac97-codec.%u", (unsigned int)idx); + if (!priv->dai_link[0].codec_name) { + ret = -ENOMEM; + goto asrc_fail; + } } priv->dai_link[0].platform_of_node = cpu_np; -- cgit v1.2.3