---

yaml
---
r: 110841
b: refs/heads/master
c: 58cd33c
h: refs/heads/master
i:
  110839: 3bd6826
v: v3

[refs]

@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 8a33de9e51673dbdadb552d888a4544aefe0c31d
+refs/heads/master: 58cd33c0f375578cfda25a52ed280caa888b6254

trunk/include/sound/soc.h

@@ -410,6 +410,8 @@ struct snd_soc_codec {
 	void *control_data; /* codec control (i2c/3wire) data */
 	unsigned int (*read)(struct snd_soc_codec *, unsigned int);
 	int (*write)(struct snd_soc_codec *, unsigned int, unsigned int);
+	int (*display_register)(struct snd_soc_codec *, char *,
+				size_t, unsigned int);
 	hw_write_t hw_write;
 	hw_read_t hw_read;
 	void *reg_cache;

trunk/sound/soc/soc-core.c

@@ -970,9 +970,29 @@ static ssize_t codec_reg_show(struct device *dev,
 		step = codec->reg_cache_step;
 
 	count += sprintf(buf, "%s registers\n", codec->name);
-	for (i = 0; i < codec->reg_cache_size; i += step)
-		count += sprintf(buf + count, "%2x: %4x\n", i,
-			codec->read(codec, i));
+	for (i = 0; i < codec->reg_cache_size; i += step) {
+		count += sprintf(buf + count, "%2x: ", i);
+		if (count >= PAGE_SIZE - 1)
+			break;
+
+		if (codec->display_register)
+			count += codec->display_register(codec, buf + count,
+							 PAGE_SIZE - count, i);
+		else
+			count += snprintf(buf + count, PAGE_SIZE - count,
+					  "%4x", codec->read(codec, i));
+
+		if (count >= PAGE_SIZE - 1)
+			break;
+
+		count += snprintf(buf + count, PAGE_SIZE - count, "\n");
+		if (count >= PAGE_SIZE - 1)
+			break;
+	}
+
+	/* Truncate count; min() would cause a warning */
+	if (count >= PAGE_SIZE)
+		count = PAGE_SIZE - 1;
 
 	return count;
 }