linux-kernel - [PATCH 1/2] ASoC: codecs: pcm186x: fix wrong usage of DECLARE_TLV_DB

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Date:   Tue, 19 Feb 2019 16:15:42 +0000
From:   <Codrin.Ciubotariu@...rochip.com>
To:     <lgirdwood@...il.com>, <broonie@...nel.org>
CC:     <dannenberg@...com>, <m-stecklein@...com>, <afd@...com>,
        <alsa-devel@...a-project.org>, <linux-kernel@...r.kernel.org>,
        <Codrin.Ciubotariu@...rochip.com>
Subject: [PATCH 1/2] ASoC: codecs: pcm186x: fix wrong usage of
 DECLARE_TLV_DB_LINEAR()

From: Codrin Ciubotariu <codrin.ciubotariu@...rochip.com>

According to DS, the gain is between -12 dB and 40 dB, with a 0.5 dB step.
Tested on pcm1863.

Signed-off-by: Codrin Ciubotariu <codrin.ciubotariu@...rochip.com>
---
 sound/soc/codecs/pcm186x.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/sound/soc/codecs/pcm186x.c b/sound/soc/codecs/pcm186x.c
index 809b7e9f03ca..7947279243f9 100644
--- a/sound/soc/codecs/pcm186x.c
+++ b/sound/soc/codecs/pcm186x.c
@@ -6,7 +6,6 @@
  *	Andreas Dannenberg <dannenberg@...com>
  *	Andrew F. Davis <afd@...com>
  */
-
 #include <linux/module.h>
 #include <linux/moduleparam.h>
 #include <linux/init.h>
@@ -42,7 +41,7 @@ struct pcm186x_priv {
 	bool is_master_mode;
 };
 
-static const DECLARE_TLV_DB_SCALE(pcm186x_pga_tlv, -1200, 4000, 50);
+static const DECLARE_TLV_DB_SCALE(pcm186x_pga_tlv, -1200, 50, 0);
 
 static const struct snd_kcontrol_new pcm1863_snd_controls[] = {
 	SOC_DOUBLE_R_S_TLV("ADC Capture Volume", PCM186X_PGA_VAL_CH1_L,
-- 
2.17.1