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From 53f059eb1ce439b171516c0e6673ab88ca25e166 Mon Sep 17 00:00:00 2001
From: Howard Mitchell <hm@hmbedded.co.uk>
Date: Fri, 28 Mar 2014 16:40:31 +0000
Subject: [PATCH 51/54] Use a range macro for Playback Volume.

This allows limiting the output gain to avoid clipping in the
DAC ouput stages.
---
 sound/soc/codecs/pcm512x.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

--- a/sound/soc/codecs/pcm512x.c
+++ b/sound/soc/codecs/pcm512x.c
@@ -240,8 +240,8 @@ static const struct soc_enum pcm512x_ved
 			pcm512x_ramp_step_text);
 
 static const struct snd_kcontrol_new pcm512x_controls[] = {
-SOC_DOUBLE_R_TLV("Playback Digital Volume", PCM512x_DIGITAL_VOLUME_2,
-		 PCM512x_DIGITAL_VOLUME_3, 0, 255, 1, digital_tlv),
+SOC_DOUBLE_R_RANGE_TLV("Playback Digital Volume", PCM512x_DIGITAL_VOLUME_2,
+		 PCM512x_DIGITAL_VOLUME_3, 0, 48, 255, 1, digital_tlv),
 SOC_DOUBLE("Playback Digital Switch", PCM512x_MUTE, PCM512x_RQML_SHIFT,
 	   PCM512x_RQMR_SHIFT, 1, 1),