OpenE2K
/
linux
6
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

ASoC: wm8737: Fixup setting VMID Impedance control register 

According to the datasheet:
R10 (0Ah) VMID Impedance Control

BIT 3:2 VMIDSEL DEFAULT 00

DESCRIPTION: VMID impedance selection control
00: 75kΩ output
01: 300kΩ output
10: 2.5kΩ output

WM8737_VMIDSEL_MASK is 0xC (VMIDSEL - [3:2]),
so it needs to left shift WM8737_VMIDSEL_SHIFT bits for setting these bits.

Signed-off-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
Cc: stable@vger.kernel.org
This commit is contained in:
Axel Lin 2015-05-10 11:35:06 +08:00 committed by Mark Brown
parent b787f68c36
commit 14ba3ec1de
1 changed files with 4 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

6
sound/soc/codecs/wm8737.c
View File

@ -483,7 +483,8 @@ static int wm8737_set_bias_level(struct snd_soc_codec *codec,
/* Fast VMID ramp at 2*2.5k */
snd_soc_update_bits(codec, WM8737_MISC_BIAS_CONTROL,
WM8737_VMIDSEL_MASK, 0x4);
WM8737_VMIDSEL_MASK,
2 << WM8737_VMIDSEL_SHIFT);
/* Bring VMID up */
snd_soc_update_bits(codec, WM8737_POWER_MANAGEMENT,
@ -497,7 +498,8 @@ static int wm8737_set_bias_level(struct snd_soc_codec *codec,
/* VMID at 2*300k */
snd_soc_update_bits(codec, WM8737_MISC_BIAS_CONTROL,
WM8737_VMIDSEL_MASK, 2);
WM8737_VMIDSEL_MASK,
1 << WM8737_VMIDSEL_SHIFT);
break;