Merge tag 'asoc-v6.12' of https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into for-next

ASoC: Updates for v6.12

This is a very large set of changes, almost all in drivers rather than
the core.  Even with the addition of several quite large drivers the
overall diffstat is negative thanks to the removal of some old Intel
board support which has been obsoleted by the AVS driver, helped a bit
by some factoring out into helpers (especially around the Soundwire
machine drivers for x86).

Highlights include:

 - More simplifications and cleanups throughout the subsystem from
   Morimoto-san.
 - Extensive cleanups and refactoring of the Soundwire drivers to make
   better use of helpers.
 - Removal of Intel machine support obsoleted by the AVS driver.
 - Lots of DT schema conversions.
 - Machine support for many AMD and Intel x86 platforms.
 - Support for AMD ACP 7.1, Mediatek MT6367 and MT8365, Realtek RTL1320
   SoundWire and rev C, and Texas Instruments TAS2563

1 files changed, 36 insertions, 8 deletions

diff --git a/sound/soc/atmel/mchp-i2s-mcc.c b/sound/soc/atmel/mchp-i2s-mcc.c
index 193dd7acceb0..17d138bb9064 100644
--- a/sound/soc/atmel/mchp-i2s-mcc.c
+++ b/sound/soc/atmel/mchp-i2s-mcc.c
@@ -221,6 +221,15 @@
 #define MCHP_I2SMCC_MAX_CHANNELS		8
 #define MCHP_I2MCC_TDM_SLOT_WIDTH		32
 
+/*
+ * ---- DMA chunk size allowed ----
+ */
+#define MCHP_I2SMCC_DMA_8_WORD_CHUNK			8
+#define MCHP_I2SMCC_DMA_4_WORD_CHUNK			4
+#define MCHP_I2SMCC_DMA_2_WORD_CHUNK			2
+#define MCHP_I2SMCC_DMA_1_WORD_CHUNK			1
+#define DMA_BURST_ALIGNED(_p, _s, _w)		!(_p % (_s * _w))
+
 static const struct regmap_config mchp_i2s_mcc_regmap_config = {
 	.reg_bits = 32,
 	.reg_stride = 4,
@@ -504,12 +513,30 @@ static int mchp_i2s_mcc_is_running(struct mchp_i2s_mcc_dev *dev)
 	return !!(sr & (MCHP_I2SMCC_SR_TXEN | MCHP_I2SMCC_SR_RXEN));
 }
 
+static inline int mchp_i2s_mcc_period_to_maxburst(int period_size, int sample_size)
+{
+	int p_size = period_size;
+	int s_size = sample_size;
+
+	if (DMA_BURST_ALIGNED(p_size, s_size, MCHP_I2SMCC_DMA_8_WORD_CHUNK))
+		return MCHP_I2SMCC_DMA_8_WORD_CHUNK;
+	if (DMA_BURST_ALIGNED(p_size, s_size, MCHP_I2SMCC_DMA_4_WORD_CHUNK))
+		return MCHP_I2SMCC_DMA_4_WORD_CHUNK;
+	if (DMA_BURST_ALIGNED(p_size, s_size, MCHP_I2SMCC_DMA_2_WORD_CHUNK))
+		return MCHP_I2SMCC_DMA_2_WORD_CHUNK;
+	return MCHP_I2SMCC_DMA_1_WORD_CHUNK;
+}
+
 static int mchp_i2s_mcc_hw_params(struct snd_pcm_substream *substream,
 				  struct snd_pcm_hw_params *params,
 				  struct snd_soc_dai *dai)
 {
 	unsigned long rate = 0;
 	struct mchp_i2s_mcc_dev *dev = snd_soc_dai_get_drvdata(dai);
+	int sample_bytes = params_physical_width(params) / 8;
+	int period_bytes = params_period_size(params) *
+		params_channels(params) * sample_bytes;
+	int maxburst;
 	u32 mra = 0;
 	u32 mrb = 0;
 	unsigned int channels = params_channels(params);
@@ -519,9 +546,9 @@ static int mchp_i2s_mcc_hw_params(struct snd_pcm_substream *substream,
 	int ret;
 	bool is_playback = (substream->stream == SNDRV_PCM_STREAM_PLAYBACK);
 
-	dev_dbg(dev->dev, "%s() rate=%u format=%#x width=%u channels=%u\n",
+	dev_dbg(dev->dev, "%s() rate=%u format=%#x width=%u channels=%u period_bytes=%d\n",
 		__func__, params_rate(params), params_format(params),
-		params_width(params), params_channels(params));
+		params_width(params), params_channels(params), period_bytes);
 
 	switch (dev->fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
 	case SND_SOC_DAIFMT_I2S:
@@ -630,11 +657,12 @@ static int mchp_i2s_mcc_hw_params(struct snd_pcm_substream *substream,
 	 * We must have the same burst size configured
 	 * in the DMA transfer and in out IP
 	 */
-	mrb |= MCHP_I2SMCC_MRB_DMACHUNK(channels);
+	maxburst = mchp_i2s_mcc_period_to_maxburst(period_bytes, sample_bytes);
+	mrb |= MCHP_I2SMCC_MRB_DMACHUNK(maxburst);
 	if (is_playback)
-		dev->playback.maxburst = 1 << (fls(channels) - 1);
+		dev->playback.maxburst = maxburst;
 	else
-		dev->capture.maxburst = 1 << (fls(channels) - 1);
+		dev->capture.maxburst = maxburst;
 
 	switch (params_format(params)) {
 	case SNDRV_PCM_FORMAT_S8:
@@ -908,14 +936,14 @@ static const struct snd_soc_dai_ops mchp_i2s_mcc_dai_ops = {
 
 static struct snd_soc_dai_driver mchp_i2s_mcc_dai = {
 	.playback = {
-		.stream_name = "I2SMCC-Playback",
+		.stream_name = "Playback",
 		.channels_min = 1,
 		.channels_max = 8,
 		.rates = MCHP_I2SMCC_RATES,
 		.formats = MCHP_I2SMCC_FORMATS,
 	},
 	.capture = {
-		.stream_name = "I2SMCC-Capture",
+		.stream_name = "Capture",
 		.channels_min = 1,
 		.channels_max = 8,
 		.rates = MCHP_I2SMCC_RATES,
@@ -1101,7 +1129,7 @@ static struct platform_driver mchp_i2s_mcc_driver = {
 		.of_match_table	= mchp_i2s_mcc_dt_ids,
 	},
 	.probe		= mchp_i2s_mcc_probe,
-	.remove_new	= mchp_i2s_mcc_remove,
+	.remove		= mchp_i2s_mcc_remove,
 };
 module_platform_driver(mchp_i2s_mcc_driver);