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Diffstat (limited to 'meta-rcar-gen3-adas/recipes-kernel/linux/linux-renesas/0063-ASoC-PCM3168A-add-TDM-modes-merge-ADC-and-DAC.patch')
-rw-r--r--meta-rcar-gen3-adas/recipes-kernel/linux/linux-renesas/0063-ASoC-PCM3168A-add-TDM-modes-merge-ADC-and-DAC.patch479
1 files changed, 479 insertions, 0 deletions
diff --git a/meta-rcar-gen3-adas/recipes-kernel/linux/linux-renesas/0063-ASoC-PCM3168A-add-TDM-modes-merge-ADC-and-DAC.patch b/meta-rcar-gen3-adas/recipes-kernel/linux/linux-renesas/0063-ASoC-PCM3168A-add-TDM-modes-merge-ADC-and-DAC.patch
new file mode 100644
index 0000000..46d5d84
--- /dev/null
+++ b/meta-rcar-gen3-adas/recipes-kernel/linux/linux-renesas/0063-ASoC-PCM3168A-add-TDM-modes-merge-ADC-and-DAC.patch
@@ -0,0 +1,479 @@
+From 963d9e84748bc43a8dbcd28019bd8ff0942b5934 Mon Sep 17 00:00:00 2001
+From: Andrey Gusakov <andrey.gusakov@cogentembedded.com>
+Date: Wed, 13 Apr 2016 15:32:38 +0300
+Subject: [PATCH] ASoC: PCM3168A: add TDM modes, merge ADC and DAC
+
+Also disable 16 bit format and enable at start
+
+Signed-off-by: Andrey Gusakov <andrey.gusakov@cogentembedded.com>
+---
+ sound/soc/codecs/pcm3168a.c | 320 ++++++++++++++++++++++++++++----------------
+ sound/soc/codecs/pcm3168a.h | 2 +-
+ 2 files changed, 205 insertions(+), 117 deletions(-)
+
+diff --git a/sound/soc/codecs/pcm3168a.c b/sound/soc/codecs/pcm3168a.c
+index 992a77edcd5d..8b9e4ff6b354 100644
+--- a/sound/soc/codecs/pcm3168a.c
++++ b/sound/soc/codecs/pcm3168a.c
+@@ -22,7 +22,7 @@
+
+ #include "pcm3168a.h"
+
+-#define PCM3168A_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | \
++#define PCM3168A_FORMATS (/*SNDRV_PCM_FMTBIT_S16_LE | */\
+ SNDRV_PCM_FMTBIT_S24_3LE | \
+ SNDRV_PCM_FMTBIT_S24_LE | \
+ SNDRV_PCM_FMTBIT_S32_LE)
+@@ -33,7 +33,11 @@
+ #define PCM3168A_FMT_RIGHT_J_16 0x3
+ #define PCM3168A_FMT_DSP_A 0x4
+ #define PCM3168A_FMT_DSP_B 0x5
+-#define PCM3168A_FMT_DSP_MASK 0x4
++#define PCM3168A_FMT_I2S_TDM 0x6
++#define PCM3168A_FMT_LEFT_J_TDM 0x7
++/* High speed */
++#define PCM3168A_FMT_I2S_TDMHS 0x8
++#define PCM3168A_FMT_LEFT_J_TDMHS 0x9
+
+ #define PCM3168A_NUM_SUPPLIES 6
+ static const char *const pcm3168a_supply_names[PCM3168A_NUM_SUPPLIES] = {
+@@ -45,12 +49,18 @@ static const char *const pcm3168a_supply_names[PCM3168A_NUM_SUPPLIES] = {
+ "VCCDA2"
+ };
+
++#define TDM_MODE_NONE 0
++#define TDM_MODE_NORM 1
++#define TDM_MODE_HS 2
++
+ struct pcm3168a_priv {
+ struct regulator_bulk_data supplies[PCM3168A_NUM_SUPPLIES];
+ struct regmap *regmap;
+ struct clk *scki;
+- bool adc_master_mode;
+- bool dac_master_mode;
++ bool master_mode;
++ unsigned int tdm;
++ unsigned int slots;
++ unsigned int slot_width;
+ unsigned long sysclk;
+ unsigned int adc_fmt;
+ unsigned int dac_fmt;
+@@ -313,32 +323,43 @@ static int pcm3168a_set_dai_sysclk(struct snd_soc_dai *dai,
+ return 0;
+ }
+
+-static int pcm3168a_set_dai_fmt(struct snd_soc_dai *dai,
++int format_table[3][6] = {
++ [TDM_MODE_NONE] = {
++ [0] = -1,
++ [SND_SOC_DAIFMT_I2S] = PCM3168A_FMT_I2S,
++ [SND_SOC_DAIFMT_LEFT_J] = PCM3168A_FMT_LEFT_J,
++ [SND_SOC_DAIFMT_RIGHT_J] = PCM3168A_FMT_RIGHT_J,
++ [SND_SOC_DAIFMT_DSP_A] = PCM3168A_FMT_DSP_A,
++ [SND_SOC_DAIFMT_DSP_B] = PCM3168A_FMT_DSP_B},
++ [TDM_MODE_NORM] = {
++ [0] = -1,
++ [SND_SOC_DAIFMT_I2S] = PCM3168A_FMT_I2S_TDM,
++ [SND_SOC_DAIFMT_LEFT_J] = PCM3168A_FMT_LEFT_J_TDM,
++ [SND_SOC_DAIFMT_RIGHT_J] = -1,
++ [SND_SOC_DAIFMT_DSP_A] = -1,
++ [SND_SOC_DAIFMT_DSP_B] = -1},
++ [TDM_MODE_HS] = {
++ [0] = -1,
++ [SND_SOC_DAIFMT_I2S] = PCM3168A_FMT_I2S_TDMHS,
++ [SND_SOC_DAIFMT_LEFT_J] = PCM3168A_FMT_LEFT_J_TDMHS,
++ [SND_SOC_DAIFMT_RIGHT_J] = -1,
++ [SND_SOC_DAIFMT_DSP_A] = -1,
++ [SND_SOC_DAIFMT_DSP_B] = -1},
++};
++
++static int __pcm3168a_set_dai_fmt(struct snd_soc_dai *dai,
+ unsigned int format, bool dac)
+ {
+ struct snd_soc_codec *codec = dai->codec;
+ struct pcm3168a_priv *pcm3168a = snd_soc_codec_get_drvdata(codec);
+- u32 fmt, reg, mask, shift;
++ u32 reg, mask, shift;
++ int fmt;
+ bool master_mode;
+
+- switch (format & SND_SOC_DAIFMT_FORMAT_MASK) {
+- case SND_SOC_DAIFMT_LEFT_J:
+- fmt = PCM3168A_FMT_LEFT_J;
+- break;
+- case SND_SOC_DAIFMT_I2S:
+- fmt = PCM3168A_FMT_I2S;
+- break;
+- case SND_SOC_DAIFMT_RIGHT_J:
+- fmt = PCM3168A_FMT_RIGHT_J;
+- break;
+- case SND_SOC_DAIFMT_DSP_A:
+- fmt = PCM3168A_FMT_DSP_A;
+- break;
+- case SND_SOC_DAIFMT_DSP_B:
+- fmt = PCM3168A_FMT_DSP_B;
+- break;
+- default:
+- dev_err(codec->dev, "unsupported dai format\n");
++ fmt = format_table[pcm3168a->tdm][format & SND_SOC_DAIFMT_FORMAT_MASK];
++
++ if (fmt < 0) {
++ dev_err(codec->dev, "unsupported dai format of TDM mode\n");
+ return -EINVAL;
+ }
+
+@@ -354,6 +375,16 @@ static int pcm3168a_set_dai_fmt(struct snd_soc_dai *dai,
+ return -EINVAL;
+ }
+
++ if ((pcm3168a->tdm == TDM_MODE_HS) && (master_mode)) {
++ dev_err(codec->dev, "TDM high speed supported only in slave mode\n");
++ return -EINVAL;
++ }
++
++ if ((pcm3168a->tdm == TDM_MODE_HS) && (!dac)) {
++ dev_err(codec->dev, "TDM high speed not supported for ADC\n");
++ return -EINVAL;
++ }
++
+ switch (format & SND_SOC_DAIFMT_INV_MASK) {
+ case SND_SOC_DAIFMT_NB_NF:
+ break;
+@@ -365,31 +396,32 @@ static int pcm3168a_set_dai_fmt(struct snd_soc_dai *dai,
+ reg = PCM3168A_DAC_PWR_MST_FMT;
+ mask = PCM3168A_DAC_FMT_MASK;
+ shift = PCM3168A_DAC_FMT_SHIFT;
+- pcm3168a->dac_master_mode = master_mode;
+ pcm3168a->dac_fmt = fmt;
+ } else {
+ reg = PCM3168A_ADC_MST_FMT;
+ mask = PCM3168A_ADC_FMTAD_MASK;
+ shift = PCM3168A_ADC_FMTAD_SHIFT;
+- pcm3168a->adc_master_mode = master_mode;
+ pcm3168a->adc_fmt = fmt;
+ }
+
++ pcm3168a->master_mode = master_mode;
++
+ regmap_update_bits(pcm3168a->regmap, reg, mask, fmt << shift);
+
+ return 0;
+ }
+
+-static int pcm3168a_set_dai_fmt_dac(struct snd_soc_dai *dai,
++static int pcm3168a_set_dai_fmt(struct snd_soc_dai *dai,
+ unsigned int format)
+ {
+- return pcm3168a_set_dai_fmt(dai, format, true);
+-}
++ int ret;
+
+-static int pcm3168a_set_dai_fmt_adc(struct snd_soc_dai *dai,
+- unsigned int format)
+-{
+- return pcm3168a_set_dai_fmt(dai, format, false);
++ /* dac */
++ ret = __pcm3168a_set_dai_fmt(dai, format, false);
++ if (ret)
++ return ret;
++ /* adc */
++ return __pcm3168a_set_dai_fmt(dai, format, true);
+ }
+
+ static int pcm3168a_hw_params(struct snd_pcm_substream *substream,
+@@ -398,127 +430,170 @@ static int pcm3168a_hw_params(struct snd_pcm_substream *substream,
+ {
+ struct snd_soc_codec *codec = dai->codec;
+ struct pcm3168a_priv *pcm3168a = snd_soc_codec_get_drvdata(codec);
+- bool tx, master_mode;
++ int bits;
++ bool tx;
+ u32 val, mask, shift, reg;
+- unsigned int rate, fmt, ratio, max_ratio;
++ u32 sample_rate = 0; /* auto */
++ unsigned int rate, channels, fmt, ratio, max_ratio;
+ int i, min_frame_size;
+ snd_pcm_format_t format;
+
+ rate = params_rate(params);
+ format = params_format(params);
+-
+- ratio = pcm3168a->sysclk / rate;
++ channels = params_channels(params);
++ bits = params->msbits;
+
+ tx = substream->stream == SNDRV_PCM_STREAM_PLAYBACK;
++
+ if (tx) {
+ max_ratio = PCM3168A_NUM_SCKI_RATIOS_DAC;
+- reg = PCM3168A_DAC_PWR_MST_FMT;
+- mask = PCM3168A_DAC_MSDA_MASK;
+- shift = PCM3168A_DAC_MSDA_SHIFT;
+- master_mode = pcm3168a->dac_master_mode;
+ fmt = pcm3168a->dac_fmt;
+ } else {
+ max_ratio = PCM3168A_NUM_SCKI_RATIOS_ADC;
+- reg = PCM3168A_ADC_MST_FMT;
+- mask = PCM3168A_ADC_MSAD_MASK;
+- shift = PCM3168A_ADC_MSAD_SHIFT;
+- master_mode = pcm3168a->adc_master_mode;
+ fmt = pcm3168a->adc_fmt;
+ }
+
+- for (i = 0; i < max_ratio; i++) {
+- if (pcm3168a_scki_ratios[i] == ratio)
+- break;
+- }
+-
+- if (i == max_ratio) {
+- dev_err(codec->dev, "unsupported sysclk ratio\n");
+- return -EINVAL;
+- }
++ if (pcm3168a->master_mode) {
++ ratio = pcm3168a->sysclk / rate;
++ for (i = 0; i < max_ratio; i++)
++ if (pcm3168a_scki_ratios[i] == ratio)
++ break;
+
+- min_frame_size = params_width(params) * 2;
+- switch (min_frame_size) {
+- case 32:
+- if (master_mode || (fmt != PCM3168A_FMT_RIGHT_J)) {
+- dev_err(codec->dev, "32-bit frames are supported only for slave mode using right justified\n");
++ if (i == max_ratio) {
++ dev_err(codec->dev, "unsupported sysclk ratio: %d\n", ratio);
+ return -EINVAL;
+ }
+- fmt = PCM3168A_FMT_RIGHT_J_16;
+- break;
+- case 48:
+- if (master_mode || (fmt & PCM3168A_FMT_DSP_MASK)) {
+- dev_err(codec->dev, "48-bit frames not supported in master mode, or slave mode using DSP\n");
+- return -EINVAL;
+- }
+- break;
+- case 64:
+- break;
+- default:
+- dev_err(codec->dev, "unsupported frame size: %d\n", min_frame_size);
+- return -EINVAL;
++ val = i + 1;
++ } else {
++ /* slave mode */
++ val = 0;
+ }
+
+- if (master_mode)
+- val = ((i + 1) << shift);
+- else
++ if (pcm3168a->tdm == TDM_MODE_NONE) {
++ /* one stereo frame size */
++ min_frame_size = bits * 2;
++ switch (min_frame_size) {
++ case 32:
++ if (pcm3168a->master_mode ||
++ (fmt != PCM3168A_FMT_RIGHT_J)) {
++ dev_err(codec->dev, "32-bit frames are supported only for slave mode using right justified\n");
++ return -EINVAL;
++ }
++ fmt = PCM3168A_FMT_RIGHT_J_16;
++ break;
++ case 48:
++ if (pcm3168a->master_mode ||
++ (fmt == PCM3168A_FMT_DSP_A) ||
++ (fmt == PCM3168A_FMT_DSP_B)) {
++ dev_err(codec->dev, "48-bit frames not supported in master mode, or slave mode using DSP\n");
++ return -EINVAL;
++ }
++ break;
++ case 64:
++ break;
++ default:
++ dev_err(codec->dev, "unsupported frame size: %d\n", min_frame_size);
++ return -EINVAL;
++ }
++ }
++ if ((pcm3168a->tdm == TDM_MODE_NORM) ||
++ (pcm3168a->tdm == TDM_MODE_HS)) {
++ /* all channels over one or two line */
++ min_frame_size = bits * channels;
++
++ /* single rate */
++ sample_rate = 1;
++
++ /*
++ * 256fs for single line DIN0/DOUT0
++ * 128fs for two lines DIN01/DOU01
++ */
++ if ((min_frame_size != 256) &&
++ (min_frame_size != 128)) {
++ dev_err(codec->dev, "256/128-bit frames only supported in TDM formats\n");
++ return -EINVAL;
++ }
++ }
++
++ /* Setup ADC in master mode, couse it drives ADC */
++ if ((pcm3168a->master_mode) || (tx)) {
++ fmt = pcm3168a->dac_fmt;
++ reg = PCM3168A_DAC_PWR_MST_FMT;
++ mask = PCM3168A_DAC_MSDA_MASK | PCM3168A_DAC_FMT_MASK;
++ shift = PCM3168A_DAC_MSDA_SHIFT;
++ /* start DAC */
++ regmap_update_bits(pcm3168a->regmap, reg, mask, (val << shift) | fmt);
++ }
++ /* Do we need also ADC? */
++ if (!tx) {
++ fmt = pcm3168a->adc_fmt;
++ reg = PCM3168A_ADC_MST_FMT;
++ mask = PCM3168A_ADC_MSAD_MASK | PCM3168A_ADC_FMTAD_MASK;
++ shift = PCM3168A_ADC_MSAD_SHIFT;
++ /* ADC slave mode only, driven by DAC or CPU DAI */
+ val = 0;
++ regmap_update_bits(pcm3168a->regmap, reg, mask, (val << shift) | fmt);
++ }
+
+- regmap_update_bits(pcm3168a->regmap, reg, mask, val);
++ regmap_update_bits(pcm3168a->regmap, PCM3168A_RST_SMODE,
++ PCM3168A_DAC_SRDA_MASK,
++ sample_rate << PCM3168A_DAC_SRDA_SHIFT);
+
+- if (tx) {
+- mask = PCM3168A_DAC_FMT_MASK;
+- shift = PCM3168A_DAC_FMT_SHIFT;
+- } else {
+- mask = PCM3168A_ADC_FMTAD_MASK;
+- shift = PCM3168A_ADC_FMTAD_SHIFT;
+- }
++ return 0;
++}
+
+- regmap_update_bits(pcm3168a->regmap, reg, mask, fmt << shift);
++static int pcm3168a_set_tdm_slot(struct snd_soc_dai *dai,
++ unsigned int tx_mask,
++ unsigned int rx_mask,
++ int slots,
++ int slot_width)
++{
++ struct snd_soc_codec *codec = dai->codec;
++ struct pcm3168a_priv *pcm3168a = snd_soc_codec_get_drvdata(codec);
++
++ if ((slots != 8) && (slots != 4))
++ return -EINVAL;
++
++ if ((slot_width != 32) && (slot_width != 24))
++ return -EINVAL;
++
++ pcm3168a->slots = slots;
++ pcm3168a->slot_width = slot_width;
+
+ return 0;
+ }
+
+-static const struct snd_soc_dai_ops pcm3168a_dac_dai_ops = {
+- .set_fmt = pcm3168a_set_dai_fmt_dac,
++static const struct snd_soc_dai_ops pcm3168a_dai_ops = {
++ .set_fmt = pcm3168a_set_dai_fmt,
+ .set_sysclk = pcm3168a_set_dai_sysclk,
++ .set_tdm_slot = pcm3168a_set_tdm_slot,
+ .hw_params = pcm3168a_hw_params,
+ .digital_mute = pcm3168a_digital_mute
+ };
+
+-static const struct snd_soc_dai_ops pcm3168a_adc_dai_ops = {
+- .set_fmt = pcm3168a_set_dai_fmt_adc,
+- .set_sysclk = pcm3168a_set_dai_sysclk,
+- .hw_params = pcm3168a_hw_params
+-};
+-
+-static struct snd_soc_dai_driver pcm3168a_dais[] = {
+- {
+- .name = "pcm3168a-dac",
+- .playback = {
+- .stream_name = "Playback",
+- .channels_min = 1,
+- .channels_max = 8,
+- .rates = SNDRV_PCM_RATE_8000_192000,
+- .formats = PCM3168A_FORMATS
+- },
+- .ops = &pcm3168a_dac_dai_ops
++static struct snd_soc_dai_driver pcm3168a_dai = {
++ .name = "pcm3168a",
++ .playback = {
++ .stream_name = "Playback",
++ .channels_min = 1,
++ .channels_max = 8,
++ .rates = SNDRV_PCM_RATE_8000_192000,
++ .formats = PCM3168A_FORMATS
+ },
+- {
+- .name = "pcm3168a-adc",
+- .capture = {
+- .stream_name = "Capture",
+- .channels_min = 1,
+- .channels_max = 6,
+- .rates = SNDRV_PCM_RATE_8000_96000,
+- .formats = PCM3168A_FORMATS
+- },
+- .ops = &pcm3168a_adc_dai_ops
++ .capture = {
++ .stream_name = "Capture",
++ .channels_min = 1,
++ .channels_max = 8,
++ .rates = SNDRV_PCM_RATE_8000_96000,
++ .formats = PCM3168A_FORMATS
+ },
++ .ops = &pcm3168a_dai_ops,
++ .symmetric_rates = 1,
+ };
+
+ static const struct reg_default pcm3168a_reg_default[] = {
+ { PCM3168A_RST_SMODE, PCM3168A_MRST_MASK | PCM3168A_SRST_MASK },
+- { PCM3168A_DAC_PWR_MST_FMT, 0x00 },
++ { PCM3168A_DAC_PWR_MST_FMT, 0x80 },
+ { PCM3168A_DAC_OP_FLT, 0x00 },
+ { PCM3168A_DAC_INV, 0x00 },
+ { PCM3168A_DAC_MUTE, 0x00 },
+@@ -665,12 +740,25 @@ int pcm3168a_probe(struct device *dev, struct regmap *regmap)
+ goto err_regulator;
+ }
+
++ /* get TDM mode */
++ if (dev->of_node) {
++ if (of_get_property(dev->of_node, "tdm", NULL))
++ pcm3168a->tdm = TDM_MODE_NORM;
++ else if (of_get_property(dev->of_node, "tdmhs", NULL))
++ pcm3168a->tdm = TDM_MODE_HS;
++ }
++
+ pm_runtime_set_active(dev);
+ pm_runtime_enable(dev);
+ pm_runtime_idle(dev);
+
+- ret = snd_soc_register_codec(dev, &pcm3168a_driver, pcm3168a_dais,
+- ARRAY_SIZE(pcm3168a_dais));
++ if (pcm3168a->tdm != TDM_MODE_NONE) {
++ pcm3168a_dai.playback.channels_min = 8;
++ pcm3168a_dai.capture.channels_min = 8;
++ }
++
++ ret = snd_soc_register_codec(dev, &pcm3168a_driver,
++ &pcm3168a_dai, 1);
+ if (ret) {
+ dev_err(dev, "failed to register codec: %d\n", ret);
+ goto err_regulator;
+diff --git a/sound/soc/codecs/pcm3168a.h b/sound/soc/codecs/pcm3168a.h
+index 56c8332d82fb..658507f86c97 100644
+--- a/sound/soc/codecs/pcm3168a.h
++++ b/sound/soc/codecs/pcm3168a.h
+@@ -69,7 +69,7 @@ extern void pcm3168a_remove(struct device *dev);
+ #define PCM3168A_ADC_MSAD_SHIFT 4
+ #define PCM3168A_ADC_MSAD_MASK 0x70
+ #define PCM3168A_ADC_FMTAD_SHIFT 0
+-#define PCM3168A_ADC_FMTAD_MASK 0x7
++#define PCM3168A_ADC_FMTAD_MASK 0xf
+
+ #define PCM3168A_ADC_PWR_HPFB 0x52
+ #define PCM3168A_ADC_PSVAD_SHIFT 4
+--
+2.13.0
+