ASoC: cs43130: Replace scnprintf() with sysfs_emit()

sysfs_emit() is a new helper to simplify the sysfs string output.
Replace the open-code straightforwardly with this new helper.
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Link: https://lore.kernel.org/r/20220801170108.26340-2-tiwai@suse.deSigned-off-by: Mark Brown <broonie@kernel.org>

sound/soc/codecs/cs43130.c

@@ -1666,10 +1666,9 @@ static int cs43130_show_dc(struct device *dev, char *buf, u8 ch)
 	struct cs43130_private *cs43130 = i2c_get_clientdata(client);
 
 	if (!cs43130->hpload_done)
-		return scnprintf(buf, PAGE_SIZE, "NO_HPLOAD\n");
+		return sysfs_emit(buf, "NO_HPLOAD\n");
 	else
-		return scnprintf(buf, PAGE_SIZE, "%u\n",
-				 cs43130->hpload_dc[ch]);
+		return sysfs_emit(buf, "%u\n", cs43130->hpload_dc[ch]);
 }
 
 static ssize_t hpload_dc_l_show(struct device *dev,
@@ -1705,8 +1704,8 @@ static int cs43130_show_ac(struct device *dev, char *buf, u8 ch)
 
 	if (cs43130->hpload_done && cs43130->ac_meas) {
 		for (i = 0; i < ARRAY_SIZE(cs43130_ac_freq); i++) {
-			tmp = scnprintf(buf + j, PAGE_SIZE - j, "%u\n",
-					cs43130->hpload_ac[i][ch]);
+			tmp = sysfs_emit_at(buf, j, "%u\n",
+					    cs43130->hpload_ac[i][ch]);
 			if (!tmp)
 				break;
 
@@ -1715,7 +1714,7 @@ static int cs43130_show_ac(struct device *dev, char *buf, u8 ch)
 
 		return j;
 	} else {
-		return scnprintf(buf, PAGE_SIZE, "NO_HPLOAD\n");
+		return sysfs_emit(buf, "NO_HPLOAD\n");
 	}
 }