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, 101 insertions, 1 deletions

diff --git a/sound/soc/codecs/tlv320aic31xx.c b/sound/soc/codecs/tlv320aic31xx.c
index 2f94cfda0e33..187d68e8688c 100644
--- a/sound/soc/codecs/tlv320aic31xx.c
+++ b/sound/soc/codecs/tlv320aic31xx.c
@@ -12,6 +12,7 @@
  * and mono/stereo Class-D speaker driver.
  */
 
+#include <asm/unaligned.h>
 #include <linux/module.h>
 #include <linux/moduleparam.h>
 #include <linux/init.h>
@@ -22,6 +23,7 @@
 #include <linux/gpio/consumer.h>
 #include <linux/regulator/consumer.h>
 #include <linux/acpi.h>
+#include <linux/firmware.h>
 #include <linux/of.h>
 #include <linux/slab.h>
 #include <sound/core.h>
@@ -893,7 +895,7 @@ static int aic31xx_setup_pll(struct snd_soc_component *component,
 		dev_err(component->dev,
 			"%s: Sample rate (%u) and format not supported\n",
 			__func__, params_rate(params));
-		/* See bellow for details how fix this. */
+		/* See below for details on how to fix this. */
 		return -EINVAL;
 	}
 	if (bclk_score != 0) {
@@ -1638,6 +1640,98 @@ static const struct i2c_device_id aic31xx_i2c_id[] = {
 };
 MODULE_DEVICE_TABLE(i2c, aic31xx_i2c_id);
 
+static int tlv320dac3100_fw_load(struct aic31xx_priv *aic31xx,
+				 const u8 *data, size_t size)
+{
+	int ret, reg;
+	u16 val16;
+
+	/*
+	 * Coefficients firmware binary structure. Multi-byte values are big-endian.
+	 *
+	 * @0, 16bits: Magic (0xB30C)
+	 * @2, 16bits: Version (0x0100 for version 1.0)
+	 * @4, 8bits: DAC Processing Block Selection
+	 * @5, 62 16-bit values: Page 8 buffer A DAC programmable filter coefficients
+	 * @129, 12 16-bit values: Page 9 Buffer A DAC programmable filter coefficients
+	 *
+	 * Filter coefficients are interpreted as two's complement values
+	 * ranging from -32 768 to 32 767. For more details on filter coefficients,
+	 * please refer to the TLV320DAC3100 datasheet, tables 6-120 and 6-123.
+	 */
+
+	if (size != 153) {
+		dev_err(aic31xx->dev, "firmware size is %zu, expected 153 bytes\n", size);
+		return -EINVAL;
+	}
+
+	/* Check magic */
+	val16 = get_unaligned_be16(data);
+	if (val16 != 0xb30c) {
+		dev_err(aic31xx->dev, "fw magic is 0x%04x expected 0xb30c\n", val16);
+		return -EINVAL;
+	}
+	data += 2;
+
+	/* Check version */
+	val16 = get_unaligned_be16(data);
+	if (val16 != 0x0100) {
+		dev_err(aic31xx->dev, "invalid firmware version 0x%04x! expected 1", val16);
+		return -EINVAL;
+	}
+	data += 2;
+
+	ret = regmap_write(aic31xx->regmap, AIC31XX_DACPRB, *data);
+	if (ret) {
+		dev_err(aic31xx->dev, "failed to write PRB index: err %d\n", ret);
+		return ret;
+	}
+	data += 1;
+
+	/* Page 8 Buffer A coefficients */
+	for (reg = 2; reg < 126; reg++) {
+		ret = regmap_write(aic31xx->regmap, AIC31XX_REG(8, reg), *data);
+		if (ret) {
+			dev_err(aic31xx->dev,
+				"failed to write page 8 filter coefficient %d: err %d\n", reg, ret);
+			return ret;
+		}
+		data++;
+	}
+
+	/* Page 9 Buffer A coefficients */
+	for (reg = 2; reg < 26; reg++) {
+		ret = regmap_write(aic31xx->regmap, AIC31XX_REG(9, reg), *data);
+		if (ret) {
+			dev_err(aic31xx->dev,
+				"failed to write page 9 filter coefficient %d: err %d\n", reg, ret);
+			return ret;
+		}
+		data++;
+	}
+
+	dev_info(aic31xx->dev, "done loading DAC filter coefficients\n");
+
+	return ret;
+}
+
+static int tlv320dac3100_load_coeffs(struct aic31xx_priv *aic31xx,
+				     const char *fw_name)
+{
+	const struct firmware *fw;
+	int ret;
+
+	ret = request_firmware(&fw, fw_name, aic31xx->dev);
+	if (ret)
+		return ret;
+
+	ret = tlv320dac3100_fw_load(aic31xx, fw->data, fw->size);
+
+	release_firmware(fw);
+
+	return ret;
+}
+
 static int aic31xx_i2c_probe(struct i2c_client *i2c)
 {
 	struct aic31xx_priv *aic31xx;
@@ -1727,6 +1821,12 @@ static int aic31xx_i2c_probe(struct i2c_client *i2c)
 		}
 	}
 
+	if (aic31xx->codec_type == DAC3100) {
+		ret = tlv320dac3100_load_coeffs(aic31xx, "tlv320dac3100-coeffs.bin");
+		if (ret)
+			dev_warn(aic31xx->dev, "Did not load any filter coefficients\n");
+	}
+
 	if (aic31xx->codec_type & DAC31XX_BIT)
 		return devm_snd_soc_register_component(&i2c->dev,
 				&soc_codec_driver_aic31xx,