firmware: cs_dsp: Some small coding improvements

Merge series from Richard Fitzgerald <rf@opensource.cirrus.com>:

Commit series that makes some small improvements to code and the
kernel log messages.

drivers/firmware/cirrus/cs_dsp.c

@@ -12,6 +12,7 @@
 #include <linux/ctype.h>
 #include <linux/debugfs.h>
 #include <linux/delay.h>
+#include <linux/minmax.h>
 #include <linux/module.h>
 #include <linux/moduleparam.h>
 #include <linux/seq_file.h>
@@ -1050,7 +1051,7 @@ static int cs_dsp_create_control(struct cs_dsp *dsp,
 
 	ctl->fw_name = dsp->fw_name;
 	ctl->alg_region = *alg_region;
-	if (subname && dsp->fw_ver >= 2) {
+	if (subname && dsp->wmfw_ver >= 2) {
 		ctl->subname_len = subname_len;
 		ctl->subname = kasprintf(GFP_KERNEL, "%.*s", subname_len, subname);
 		if (!ctl->subname) {
@@ -1110,9 +1111,16 @@ struct cs_dsp_coeff_parsed_coeff {
 	int len;
 };
 
-static int cs_dsp_coeff_parse_string(int bytes, const u8 **pos, const u8 **str)
+static int cs_dsp_coeff_parse_string(int bytes, const u8 **pos, unsigned int avail,
+				     const u8 **str)
 {
-	int length;
+	int length, total_field_len;
+
+	/* String fields are at least one __le32 */
+	if (sizeof(__le32) > avail) {
+		*pos = NULL;
+		return 0;
+	}
 
 	switch (bytes) {
 	case 1:
@@ -1125,10 +1133,16 @@ static int cs_dsp_coeff_parse_string(int bytes, const u8 **pos, const u8 **str)
 		return 0;
 	}
 
+	total_field_len = ((length + bytes) + 3) & ~0x03;
+	if ((unsigned int)total_field_len > avail) {
+		*pos = NULL;
+		return 0;
+	}
+
 	if (str)
 		*str = *pos + bytes;
 
-	*pos += ((length + bytes) + 3) & ~0x03;
+	*pos += total_field_len;
 
 	return length;
 }
@@ -1153,71 +1167,134 @@ static int cs_dsp_coeff_parse_int(int bytes, const u8 **pos)
 	return val;
 }
 
-static inline void cs_dsp_coeff_parse_alg(struct cs_dsp *dsp, const u8 **data,
-					  struct cs_dsp_coeff_parsed_alg *blk)
+static int cs_dsp_coeff_parse_alg(struct cs_dsp *dsp,
+				  const struct wmfw_region *region,
+				  struct cs_dsp_coeff_parsed_alg *blk)
 {
 	const struct wmfw_adsp_alg_data *raw;
+	unsigned int data_len = le32_to_cpu(region->len);
+	unsigned int pos;
+	const u8 *tmp;
 
-	switch (dsp->fw_ver) {
+	raw = (const struct wmfw_adsp_alg_data *)region->data;
+
+	switch (dsp->wmfw_ver) {
 	case 0:
 	case 1:
-		raw = (const struct wmfw_adsp_alg_data *)*data;
-		*data = raw->data;
+		if (sizeof(*raw) > data_len)
+			return -EOVERFLOW;
 
 		blk->id = le32_to_cpu(raw->id);
 		blk->name = raw->name;
-		blk->name_len = strlen(raw->name);
+		blk->name_len = strnlen(raw->name, ARRAY_SIZE(raw->name));
 		blk->ncoeff = le32_to_cpu(raw->ncoeff);
+
+		pos = sizeof(*raw);
 		break;
 	default:
-		blk->id = cs_dsp_coeff_parse_int(sizeof(raw->id), data);
-		blk->name_len = cs_dsp_coeff_parse_string(sizeof(u8), data,
+		if (sizeof(raw->id) > data_len)
+			return -EOVERFLOW;
+
+		tmp = region->data;
+		blk->id = cs_dsp_coeff_parse_int(sizeof(raw->id), &tmp);
+		pos = tmp - region->data;
+
+		tmp = &region->data[pos];
+		blk->name_len = cs_dsp_coeff_parse_string(sizeof(u8), &tmp, data_len - pos,
 							  &blk->name);
-		cs_dsp_coeff_parse_string(sizeof(u16), data, NULL);
-		blk->ncoeff = cs_dsp_coeff_parse_int(sizeof(raw->ncoeff), data);
+		if (!tmp)
+			return -EOVERFLOW;
+
+		pos = tmp - region->data;
+		cs_dsp_coeff_parse_string(sizeof(u16), &tmp, data_len - pos, NULL);
+		if (!tmp)
+			return -EOVERFLOW;
+
+		pos = tmp - region->data;
+		if (sizeof(raw->ncoeff) > (data_len - pos))
+			return -EOVERFLOW;
+
+		blk->ncoeff = cs_dsp_coeff_parse_int(sizeof(raw->ncoeff), &tmp);
+		pos += sizeof(raw->ncoeff);
 		break;
 	}
 
+	if ((int)blk->ncoeff < 0)
+		return -EOVERFLOW;
+
 	cs_dsp_dbg(dsp, "Algorithm ID: %#x\n", blk->id);
 	cs_dsp_dbg(dsp, "Algorithm name: %.*s\n", blk->name_len, blk->name);
 	cs_dsp_dbg(dsp, "# of coefficient descriptors: %#x\n", blk->ncoeff);
+
+	return pos;
 }
 
-static inline void cs_dsp_coeff_parse_coeff(struct cs_dsp *dsp, const u8 **data,
-					    struct cs_dsp_coeff_parsed_coeff *blk)
+static int cs_dsp_coeff_parse_coeff(struct cs_dsp *dsp,
+				    const struct wmfw_region *region,
+				    unsigned int pos,
+				    struct cs_dsp_coeff_parsed_coeff *blk)
 {
 	const struct wmfw_adsp_coeff_data *raw;
+	unsigned int data_len = le32_to_cpu(region->len);
+	unsigned int blk_len, blk_end_pos;
 	const u8 *tmp;
-	int length;
 
-	switch (dsp->fw_ver) {
+	raw = (const struct wmfw_adsp_coeff_data *)&region->data[pos];
+	if (sizeof(raw->hdr) > (data_len - pos))
+		return -EOVERFLOW;
+
+	blk_len = le32_to_cpu(raw->hdr.size);
+	if (blk_len > S32_MAX)
+		return -EOVERFLOW;
+
+	if (blk_len > (data_len - pos - sizeof(raw->hdr)))
+		return -EOVERFLOW;
+
+	blk_end_pos = pos + sizeof(raw->hdr) + blk_len;
+
+	blk->offset = le16_to_cpu(raw->hdr.offset);
+	blk->mem_type = le16_to_cpu(raw->hdr.type);
+
+	switch (dsp->wmfw_ver) {
 	case 0:
 	case 1:
-		raw = (const struct wmfw_adsp_coeff_data *)*data;
-		*data = *data + sizeof(raw->hdr) + le32_to_cpu(raw->hdr.size);
+		if (sizeof(*raw) > (data_len - pos))
+			return -EOVERFLOW;
 
-		blk->offset = le16_to_cpu(raw->hdr.offset);
-		blk->mem_type = le16_to_cpu(raw->hdr.type);
 		blk->name = raw->name;
-		blk->name_len = strlen(raw->name);
+		blk->name_len = strnlen(raw->name, ARRAY_SIZE(raw->name));
 		blk->ctl_type = le16_to_cpu(raw->ctl_type);
 		blk->flags = le16_to_cpu(raw->flags);
 		blk->len = le32_to_cpu(raw->len);
 		break;
 	default:
-		tmp = *data;
-		blk->offset = cs_dsp_coeff_parse_int(sizeof(raw->hdr.offset), &tmp);
-		blk->mem_type = cs_dsp_coeff_parse_int(sizeof(raw->hdr.type), &tmp);
-		length = cs_dsp_coeff_parse_int(sizeof(raw->hdr.size), &tmp);
-		blk->name_len = cs_dsp_coeff_parse_string(sizeof(u8), &tmp,
+		pos += sizeof(raw->hdr);
+		tmp = &region->data[pos];
+		blk->name_len = cs_dsp_coeff_parse_string(sizeof(u8), &tmp, data_len - pos,
 							  &blk->name);
-		cs_dsp_coeff_parse_string(sizeof(u8), &tmp, NULL);
-		cs_dsp_coeff_parse_string(sizeof(u16), &tmp, NULL);
+		if (!tmp)
+			return -EOVERFLOW;
+
+		pos = tmp - region->data;
+		cs_dsp_coeff_parse_string(sizeof(u8), &tmp, data_len - pos, NULL);
+		if (!tmp)
+			return -EOVERFLOW;
+
+		pos = tmp - region->data;
+		cs_dsp_coeff_parse_string(sizeof(u16), &tmp, data_len - pos, NULL);
+		if (!tmp)
+			return -EOVERFLOW;
+
+		pos = tmp - region->data;
+		if (sizeof(raw->ctl_type) + sizeof(raw->flags) + sizeof(raw->len) >
+		    (data_len - pos))
+			return -EOVERFLOW;
+
 		blk->ctl_type = cs_dsp_coeff_parse_int(sizeof(raw->ctl_type), &tmp);
+		pos += sizeof(raw->ctl_type);
 		blk->flags = cs_dsp_coeff_parse_int(sizeof(raw->flags), &tmp);
+		pos += sizeof(raw->flags);
 		blk->len = cs_dsp_coeff_parse_int(sizeof(raw->len), &tmp);
-
-		*data = *data + sizeof(raw->hdr) + length;
 		break;
 	}
 
@@ -1227,6 +1304,8 @@ static inline void cs_dsp_coeff_parse_coeff(struct cs_dsp *dsp, const u8 **data,
 	cs_dsp_dbg(dsp, "\tCoefficient flags: %#x\n", blk->flags);
 	cs_dsp_dbg(dsp, "\tALSA control type: %#x\n", blk->ctl_type);
 	cs_dsp_dbg(dsp, "\tALSA control len: %#x\n", blk->len);
+
+	return blk_end_pos;
 }
 
 static int cs_dsp_check_coeff_flags(struct cs_dsp *dsp,
@@ -1250,12 +1329,16 @@ static int cs_dsp_parse_coeff(struct cs_dsp *dsp,
 	struct cs_dsp_alg_region alg_region = {};
 	struct cs_dsp_coeff_parsed_alg alg_blk;
 	struct cs_dsp_coeff_parsed_coeff coeff_blk;
-	const u8 *data = region->data;
-	int i, ret;
+	int i, pos, ret;
+
+	pos = cs_dsp_coeff_parse_alg(dsp, region, &alg_blk);
+	if (pos < 0)
+		return pos;
 
-	cs_dsp_coeff_parse_alg(dsp, &data, &alg_blk);
 	for (i = 0; i < alg_blk.ncoeff; i++) {
-		cs_dsp_coeff_parse_coeff(dsp, &data, &coeff_blk);
+		pos = cs_dsp_coeff_parse_coeff(dsp, region, pos, &coeff_blk);
+		if (pos < 0)
+			return pos;
 
 		switch (coeff_blk.ctl_type) {
 		case WMFW_CTL_TYPE_BYTES:
@@ -1324,6 +1407,10 @@ static unsigned int cs_dsp_adsp1_parse_sizes(struct cs_dsp *dsp,
 	const struct wmfw_adsp1_sizes *adsp1_sizes;
 
 	adsp1_sizes = (void *)&firmware->data[pos];
+	if (sizeof(*adsp1_sizes) > firmware->size - pos) {
+		cs_dsp_err(dsp, "%s: file truncated\n", file);
+		return 0;
+	}
 
 	cs_dsp_dbg(dsp, "%s: %d DM, %d PM, %d ZM\n", file,
 		   le32_to_cpu(adsp1_sizes->dm), le32_to_cpu(adsp1_sizes->pm),
@@ -1340,6 +1427,10 @@ static unsigned int cs_dsp_adsp2_parse_sizes(struct cs_dsp *dsp,
 	const struct wmfw_adsp2_sizes *adsp2_sizes;
 
 	adsp2_sizes = (void *)&firmware->data[pos];
+	if (sizeof(*adsp2_sizes) > firmware->size - pos) {
+		cs_dsp_err(dsp, "%s: file truncated\n", file);
+		return 0;
+	}
 
 	cs_dsp_dbg(dsp, "%s: %d XM, %d YM %d PM, %d ZM\n", file,
 		   le32_to_cpu(adsp2_sizes->xm), le32_to_cpu(adsp2_sizes->ym),
@@ -1379,12 +1470,10 @@ static int cs_dsp_load(struct cs_dsp *dsp, const struct firmware *firmware,
 	struct regmap *regmap = dsp->regmap;
 	unsigned int pos = 0;
 	const struct wmfw_header *header;
-	const struct wmfw_adsp1_sizes *adsp1_sizes;
 	const struct wmfw_footer *footer;
 	const struct wmfw_region *region;
 	const struct cs_dsp_region *mem;
 	const char *region_name;
-	char *text = NULL;
 	struct cs_dsp_buf *buf;
 	unsigned int reg;
 	int regions = 0;
@@ -1395,10 +1484,8 @@ static int cs_dsp_load(struct cs_dsp *dsp, const struct firmware *firmware,
 
 	ret = -EINVAL;
 
-	pos = sizeof(*header) + sizeof(*adsp1_sizes) + sizeof(*footer);
-	if (pos >= firmware->size) {
-		cs_dsp_err(dsp, "%s: file too short, %zu bytes\n",
-			   file, firmware->size);
+	if (sizeof(*header) >= firmware->size) {
+		ret = -EOVERFLOW;
 		goto out_fw;
 	}
 
@@ -1415,8 +1502,7 @@ static int cs_dsp_load(struct cs_dsp *dsp, const struct firmware *firmware,
 		goto out_fw;
 	}
 
-	cs_dsp_info(dsp, "Firmware version: %d\n", header->ver);
-	dsp->fw_ver = header->ver;
+	dsp->wmfw_ver = header->ver;
 
 	if (header->core != dsp->type) {
 		cs_dsp_err(dsp, "%s: invalid core %d != %d\n",
@@ -1426,33 +1512,47 @@ static int cs_dsp_load(struct cs_dsp *dsp, const struct firmware *firmware,
 
 	pos = sizeof(*header);
 	pos = dsp->ops->parse_sizes(dsp, file, pos, firmware);
+	if ((pos == 0) || (sizeof(*footer) > firmware->size - pos)) {
+		ret = -EOVERFLOW;
+		goto out_fw;
+	}
 
 	footer = (void *)&firmware->data[pos];
 	pos += sizeof(*footer);
 
 	if (le32_to_cpu(header->len) != pos) {
-		cs_dsp_err(dsp, "%s: unexpected header length %d\n",
-			   file, le32_to_cpu(header->len));
+		ret = -EOVERFLOW;
 		goto out_fw;
 	}
 
-	cs_dsp_dbg(dsp, "%s: timestamp %llu\n", file,
-		   le64_to_cpu(footer->timestamp));
+	cs_dsp_info(dsp, "%s: format %d timestamp %#llx\n", file, header->ver,
+		    le64_to_cpu(footer->timestamp));
+
+	while (pos < firmware->size) {
+		/* Is there enough data for a complete block header? */
+		if (sizeof(*region) > firmware->size - pos) {
+			ret = -EOVERFLOW;
+			goto out_fw;
+		}
 
-	while (pos < firmware->size &&
-	       sizeof(*region) < firmware->size - pos) {
 		region = (void *)&(firmware->data[pos]);
+
+		if (le32_to_cpu(region->len) > firmware->size - pos - sizeof(*region)) {
+			ret = -EOVERFLOW;
+			goto out_fw;
+		}
+
 		region_name = "Unknown";
 		reg = 0;
-		text = NULL;
 		offset = le32_to_cpu(region->offset) & 0xffffff;
 		type = be32_to_cpu(region->type) & 0xff;
 
 		switch (type) {
+		case WMFW_INFO_TEXT:
 		case WMFW_NAME_TEXT:
-			region_name = "Firmware name";
-			text = kzalloc(le32_to_cpu(region->len) + 1,
-				       GFP_KERNEL);
+			region_name = "Info/Name";
+			cs_dsp_info(dsp, "%s: %.*s\n", file,
+				    min(le32_to_cpu(region->len), 100), region->data);
 			break;
 		case WMFW_ALGORITHM_DATA:
 			region_name = "Algorithm";
@@ -1460,11 +1560,6 @@ static int cs_dsp_load(struct cs_dsp *dsp, const struct firmware *firmware,
 			if (ret != 0)
 				goto out_fw;
 			break;
-		case WMFW_INFO_TEXT:
-			region_name = "Information";
-			text = kzalloc(le32_to_cpu(region->len) + 1,
-				       GFP_KERNEL);
-			break;
 		case WMFW_ABSOLUTE:
 			region_name = "Absolute";
 			reg = offset;
@@ -1498,23 +1593,6 @@ static int cs_dsp_load(struct cs_dsp *dsp, const struct firmware *firmware,
 			   regions, le32_to_cpu(region->len), offset,
 			   region_name);
 
-		if (le32_to_cpu(region->len) >
-		    firmware->size - pos - sizeof(*region)) {
-			cs_dsp_err(dsp,
-				   "%s.%d: %s region len %d bytes exceeds file length %zu\n",
-				   file, regions, region_name,
-				   le32_to_cpu(region->len), firmware->size);
-			ret = -EINVAL;
-			goto out_fw;
-		}
-
-		if (text) {
-			memcpy(text, region->data, le32_to_cpu(region->len));
-			cs_dsp_info(dsp, "%s: %s\n", file, text);
-			kfree(text);
-			text = NULL;
-		}
-
 		if (reg) {
 			buf = cs_dsp_buf_alloc(region->data,
 					       le32_to_cpu(region->len),
@@ -1556,7 +1634,9 @@ static int cs_dsp_load(struct cs_dsp *dsp, const struct firmware *firmware,
 out_fw:
 	regmap_async_complete(regmap);
 	cs_dsp_buf_free(&buf_list);
-	kfree(text);
+
+	if (ret == -EOVERFLOW)
+		cs_dsp_err(dsp, "%s: file content overflows file data\n", file);
 
 	return ret;
 }
@@ -1702,7 +1782,7 @@ static struct cs_dsp_alg_region *cs_dsp_create_region(struct cs_dsp *dsp,
 
 	list_add_tail(&alg_region->list, &dsp->alg_regions);
 
-	if (dsp->fw_ver > 0)
+	if (dsp->wmfw_ver > 0)
 		cs_dsp_ctl_fixup_base(dsp, alg_region);
 
 	return alg_region;
@@ -1825,7 +1905,7 @@ static int cs_dsp_adsp1_setup_algs(struct cs_dsp *dsp)
 			ret = PTR_ERR(alg_region);
 			goto out;
 		}
-		if (dsp->fw_ver == 0) {
+		if (dsp->wmfw_ver == 0) {
 			if (i + 1 < n_algs) {
 				len = be32_to_cpu(adsp1_alg[i + 1].dm);
 				len -= be32_to_cpu(adsp1_alg[i].dm);
@@ -1847,7 +1927,7 @@ static int cs_dsp_adsp1_setup_algs(struct cs_dsp *dsp)
 			ret = PTR_ERR(alg_region);
 			goto out;
 		}
-		if (dsp->fw_ver == 0) {
+		if (dsp->wmfw_ver == 0) {
 			if (i + 1 < n_algs) {
 				len = be32_to_cpu(adsp1_alg[i + 1].zm);
 				len -= be32_to_cpu(adsp1_alg[i].zm);
@@ -1938,7 +2018,7 @@ static int cs_dsp_adsp2_setup_algs(struct cs_dsp *dsp)
 			ret = PTR_ERR(alg_region);
 			goto out;
 		}
-		if (dsp->fw_ver == 0) {
+		if (dsp->wmfw_ver == 0) {
 			if (i + 1 < n_algs) {
 				len = be32_to_cpu(adsp2_alg[i + 1].xm);
 				len -= be32_to_cpu(adsp2_alg[i].xm);
@@ -1960,7 +2040,7 @@ static int cs_dsp_adsp2_setup_algs(struct cs_dsp *dsp)
 			ret = PTR_ERR(alg_region);
 			goto out;
 		}
-		if (dsp->fw_ver == 0) {
+		if (dsp->wmfw_ver == 0) {
 			if (i + 1 < n_algs) {
 				len = be32_to_cpu(adsp2_alg[i + 1].ym);
 				len -= be32_to_cpu(adsp2_alg[i].ym);
@@ -1982,7 +2062,7 @@ static int cs_dsp_adsp2_setup_algs(struct cs_dsp *dsp)
 			ret = PTR_ERR(alg_region);
 			goto out;
 		}
-		if (dsp->fw_ver == 0) {
+		if (dsp->wmfw_ver == 0) {
 			if (i + 1 < n_algs) {
 				len = be32_to_cpu(adsp2_alg[i + 1].zm);
 				len -= be32_to_cpu(adsp2_alg[i].zm);
@@ -2086,7 +2166,6 @@ static int cs_dsp_load_coeff(struct cs_dsp *dsp, const struct firmware *firmware
 	struct cs_dsp_alg_region *alg_region;
 	const char *region_name;
 	int ret, pos, blocks, type, offset, reg, version;
-	char *text = NULL;
 	struct cs_dsp_buf *buf;
 
 	if (!firmware)
@@ -2125,10 +2204,20 @@ static int cs_dsp_load_coeff(struct cs_dsp *dsp, const struct firmware *firmware
 	pos = le32_to_cpu(hdr->len);
 
 	blocks = 0;
-	while (pos < firmware->size &&
-	       sizeof(*blk) < firmware->size - pos) {
+	while (pos < firmware->size) {
+		/* Is there enough data for a complete block header? */
+		if (sizeof(*blk) > firmware->size - pos) {
+			ret = -EOVERFLOW;
+			goto out_fw;
+		}
+
 		blk = (void *)(&firmware->data[pos]);
 
+		if (le32_to_cpu(blk->len) > firmware->size - pos - sizeof(*blk)) {
+			ret = -EOVERFLOW;
+			goto out_fw;
+		}
+
 		type = le16_to_cpu(blk->type);
 		offset = le16_to_cpu(blk->offset);
 		version = le32_to_cpu(blk->ver) >> 8;
@@ -2145,7 +2234,8 @@ static int cs_dsp_load_coeff(struct cs_dsp *dsp, const struct firmware *firmware
 		region_name = "Unknown";
 		switch (type) {
 		case (WMFW_NAME_TEXT << 8):
-			text = kzalloc(le32_to_cpu(blk->len) + 1, GFP_KERNEL);
+			cs_dsp_info(dsp, "%s: %.*s\n", dsp->fw_name,
+				    min(le32_to_cpu(blk->len), 100), blk->data);
 			break;
 		case (WMFW_INFO_TEXT << 8):
 		case (WMFW_METADATA << 8):
@@ -2217,25 +2307,7 @@ static int cs_dsp_load_coeff(struct cs_dsp *dsp, const struct firmware *firmware
 			break;
 		}
 
-		if (text) {
-			memcpy(text, blk->data, le32_to_cpu(blk->len));
-			cs_dsp_info(dsp, "%s: %s\n", dsp->fw_name, text);
-			kfree(text);
-			text = NULL;
-		}
-
 		if (reg) {
-			if (le32_to_cpu(blk->len) >
-			    firmware->size - pos - sizeof(*blk)) {
-				cs_dsp_err(dsp,
-					   "%s.%d: %s region len %d bytes exceeds file length %zu\n",
-					   file, blocks, region_name,
-					   le32_to_cpu(blk->len),
-					   firmware->size);
-				ret = -EINVAL;
-				goto out_fw;
-			}
-
 			buf = cs_dsp_buf_alloc(blk->data,
 					       le32_to_cpu(blk->len),
 					       &buf_list);
@@ -2274,7 +2346,10 @@ static int cs_dsp_load_coeff(struct cs_dsp *dsp, const struct firmware *firmware
 out_fw:
 	regmap_async_complete(regmap);
 	cs_dsp_buf_free(&buf_list);
-	kfree(text);
+
+	if (ret == -EOVERFLOW)
+		cs_dsp_err(dsp, "%s: file content overflows file data\n", file);
+
 	return ret;
 }
 
@@ -2337,8 +2412,8 @@ EXPORT_SYMBOL_NS_GPL(cs_dsp_adsp1_init, FW_CS_DSP);
  * Return: Zero for success, a negative number on error.
  */
 int cs_dsp_adsp1_power_up(struct cs_dsp *dsp,
-			  const struct firmware *wmfw_firmware, char *wmfw_filename,
-			  const struct firmware *coeff_firmware, char *coeff_filename,
+			  const struct firmware *wmfw_firmware, const char *wmfw_filename,
+			  const struct firmware *coeff_firmware, const char *coeff_filename,
 			  const char *fw_name)
 {
 	unsigned int val;
@@ -2631,8 +2706,8 @@ static void cs_dsp_halo_stop_watchdog(struct cs_dsp *dsp)
  * Return: Zero for success, a negative number on error.
  */
 int cs_dsp_power_up(struct cs_dsp *dsp,
-		    const struct firmware *wmfw_firmware, char *wmfw_filename,
-		    const struct firmware *coeff_firmware, char *coeff_filename,
+		    const struct firmware *wmfw_firmware, const char *wmfw_filename,
+		    const struct firmware *coeff_firmware, const char *coeff_filename,
 		    const char *fw_name)
 {
 	int ret;

include/linux/firmware/cirrus/cs_dsp.h

@@ -167,7 +167,7 @@ struct cs_dsp {
 	const struct cs_dsp_region *mem;
 	int num_mems;
 
-	int fw_ver;
+	int wmfw_ver;
 
 	bool booted;
 	bool running;
@@ -213,13 +213,13 @@ int cs_dsp_adsp2_init(struct cs_dsp *dsp);
 int cs_dsp_halo_init(struct cs_dsp *dsp);
 
 int cs_dsp_adsp1_power_up(struct cs_dsp *dsp,
-			  const struct firmware *wmfw_firmware, char *wmfw_filename,
-			  const struct firmware *coeff_firmware, char *coeff_filename,
+			  const struct firmware *wmfw_firmware, const char *wmfw_filename,
+			  const struct firmware *coeff_firmware, const char *coeff_filename,
 			  const char *fw_name);
 void cs_dsp_adsp1_power_down(struct cs_dsp *dsp);
 int cs_dsp_power_up(struct cs_dsp *dsp,
-		    const struct firmware *wmfw_firmware, char *wmfw_filename,
-		    const struct firmware *coeff_firmware, char *coeff_filename,
+		    const struct firmware *wmfw_firmware, const char *wmfw_filename,
+		    const struct firmware *coeff_firmware, const char *coeff_filename,
 		    const char *fw_name);
 void cs_dsp_power_down(struct cs_dsp *dsp);
 int cs_dsp_run(struct cs_dsp *dsp);

sound/soc/amd/yc/acp6x-mach.c

@@ -283,6 +283,13 @@ static const struct dmi_system_id yc_acp_quirk_table[] = {
 			DMI_MATCH(DMI_PRODUCT_NAME, "M5402RA"),
 		}
 	},
+        {
+		.driver_data = &acp6x_card,
+		.matches = {
+			DMI_MATCH(DMI_BOARD_VENDOR, "ASUSTeK COMPUTER INC."),
+			DMI_MATCH(DMI_PRODUCT_NAME, "M5602RA"),
+		}
+	},
 	{
 		.driver_data = &acp6x_card,
 		.matches = {

sound/soc/codecs/rt5645.c

@@ -81,7 +81,7 @@ static const struct reg_sequence init_list[] = {
 static const struct reg_sequence rt5650_init_list[] = {
 	{0xf6,	0x0100},
 	{RT5645_PWR_ANLG1, 0x02},
-	{RT5645_IL_CMD3, 0x0018},
+	{RT5645_IL_CMD3, 0x6728},
 };
 
 static const struct reg_default rt5645_reg[] = {
@@ -3130,20 +3130,32 @@ static void rt5645_enable_push_button_irq(struct snd_soc_component *component,
 	bool enable)
 {
 	struct snd_soc_dapm_context *dapm = snd_soc_component_get_dapm(component);
+	int ret;
 
 	if (enable) {
 		snd_soc_dapm_force_enable_pin(dapm, "ADC L power");
 		snd_soc_dapm_force_enable_pin(dapm, "ADC R power");
 		snd_soc_dapm_sync(dapm);
 
+		snd_soc_component_update_bits(component, RT5650_4BTN_IL_CMD2,
+			RT5645_EN_4BTN_IL_MASK | RT5645_RST_4BTN_IL_MASK,
+			RT5645_EN_4BTN_IL_EN | RT5645_RST_4BTN_IL_RST);
+		usleep_range(10000, 15000);
+		snd_soc_component_update_bits(component, RT5650_4BTN_IL_CMD2,
+			RT5645_EN_4BTN_IL_MASK | RT5645_RST_4BTN_IL_MASK,
+			RT5645_EN_4BTN_IL_EN | RT5645_RST_4BTN_IL_NORM);
+		msleep(50);
+		ret = snd_soc_component_read(component, RT5645_INT_IRQ_ST);
+		pr_debug("%s read %x = %x\n", __func__, RT5645_INT_IRQ_ST,
+			snd_soc_component_read(component, RT5645_INT_IRQ_ST));
+		snd_soc_component_write(component, RT5645_INT_IRQ_ST, ret);
+		ret = snd_soc_component_read(component, RT5650_4BTN_IL_CMD1);
+		pr_debug("%s read %x = %x\n", __func__, RT5650_4BTN_IL_CMD1,
+			snd_soc_component_read(component, RT5650_4BTN_IL_CMD1));
+		snd_soc_component_write(component, RT5650_4BTN_IL_CMD1, ret);
 		snd_soc_component_update_bits(component, RT5650_4BTN_IL_CMD1, 0x3, 0x3);
 		snd_soc_component_update_bits(component,
 					RT5645_INT_IRQ_ST, 0x8, 0x8);
-		snd_soc_component_update_bits(component,
-					RT5650_4BTN_IL_CMD2, 0x8000, 0x8000);
-		snd_soc_component_read(component, RT5650_4BTN_IL_CMD1);
-		pr_debug("%s read %x = %x\n", __func__, RT5650_4BTN_IL_CMD1,
-			snd_soc_component_read(component, RT5650_4BTN_IL_CMD1));
 	} else {
 		snd_soc_component_update_bits(component, RT5650_4BTN_IL_CMD2, 0x8000, 0x0);
 		snd_soc_component_update_bits(component, RT5645_INT_IRQ_ST, 0x8, 0x0);

sound/soc/codecs/rt5645.h

@@ -2011,6 +2011,12 @@
 #define RT5645_ZCD_HP_DIS			(0x0 << 15)
 #define RT5645_ZCD_HP_EN			(0x1 << 15)
 
+/* Buttons Inline Command Function 2 (0xe0) */
+#define RT5645_EN_4BTN_IL_MASK			(0x1 << 15)
+#define RT5645_EN_4BTN_IL_EN			(0x1 << 15)
+#define RT5645_RST_4BTN_IL_MASK			(0x1 << 14)
+#define RT5645_RST_4BTN_IL_RST			(0x0 << 14)
+#define RT5645_RST_4BTN_IL_NORM			(0x1 << 14)
 
 /* Codec Private Register definition */
 /* DAC ADC Digital Volume (0x00) */

sound/soc/codecs/rt711-sdw.c

@@ -38,7 +38,9 @@ static bool rt711_readable_register(struct device *dev, unsigned int reg)
 	case 0x8300 ... 0x83ff:
 	case 0x9c00 ... 0x9cff:
 	case 0xb900 ... 0xb9ff:
+	case 0x752008:
 	case 0x752009:
+	case 0x75200b:
 	case 0x752011:
 	case 0x75201a:
 	case 0x752045:

sound/soc/codecs/wm_adsp.c

@@ -601,7 +601,7 @@ static int wm_adsp_control_add(struct cs_dsp_coeff_ctl *cs_ctl)
 		return -EINVAL;
 	}
 
-	switch (cs_dsp->fw_ver) {
+	switch (cs_dsp->wmfw_ver) {
 	case 0:
 	case 1:
 		ret = scnprintf(name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN,

sound/soc/mediatek/mt8195/mt8195-mt6359.c

@@ -827,6 +827,7 @@ SND_SOC_DAILINK_DEFS(ETDM2_IN_BE,
 
 SND_SOC_DAILINK_DEFS(ETDM1_OUT_BE,
 		     DAILINK_COMP_ARRAY(COMP_CPU("ETDM1_OUT")),
+		     DAILINK_COMP_ARRAY(COMP_EMPTY()),
 		     DAILINK_COMP_ARRAY(COMP_EMPTY()));
 
 SND_SOC_DAILINK_DEFS(ETDM2_OUT_BE,

sound/soc/sof/intel/hda-dai.c

@@ -617,12 +617,6 @@ static int hda_dai_suspend(struct hdac_bus *bus)
 			sdai = swidget->private;
 			ops = sdai->platform_private;
 
-			ret = hda_link_dma_cleanup(hext_stream->link_substream,
-						   hext_stream,
-						   cpu_dai);
-			if (ret < 0)
-				return ret;
-
 			/* for consistency with TRIGGER_SUSPEND  */
 			if (ops->post_trigger) {
 				ret = ops->post_trigger(sdev, cpu_dai,
@@ -631,6 +625,12 @@ static int hda_dai_suspend(struct hdac_bus *bus)
 				if (ret < 0)
 					return ret;
 			}
+
+			ret = hda_link_dma_cleanup(hext_stream->link_substream,
+						   hext_stream,
+						   cpu_dai);
+			if (ret < 0)
+				return ret;
 		}
 	}
 

sound/soc/sof/intel/hda-pcm.c

@@ -258,6 +258,12 @@ int hda_dsp_pcm_open(struct snd_sof_dev *sdev,
 	snd_pcm_hw_constraint_integer(substream->runtime,
 				      SNDRV_PCM_HW_PARAM_PERIODS);
 
+	/* Limit the maximum number of periods to not exceed the BDL entries count */
+	if (runtime->hw.periods_max > HDA_DSP_MAX_BDL_ENTRIES)
+		snd_pcm_hw_constraint_minmax(runtime, SNDRV_PCM_HW_PARAM_PERIODS,
+					     runtime->hw.periods_min,
+					     HDA_DSP_MAX_BDL_ENTRIES);
+
 	/* Only S16 and S32 supported by HDA hardware when used without DSP */
 	if (sdev->dspless_mode_selected)
 		snd_pcm_hw_constraint_mask64(substream->runtime, SNDRV_PCM_HW_PARAM_FORMAT,