This is a note to let you know that I've just added the patch titled
ASoC: wm8737: Fixup setting VMID Impedance control register
to the 4.1-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
asoc-wm8737-fixup-setting-vmid-impedance-control-register.patch
and it can be found in the queue-4.1 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From 14ba3ec1de043260cecd9e828ea2e3a0ad302893 Mon Sep 17 00:00:00 2001
From: Axel Lin <axel.lin@xxxxxxxxxx>
Date: Sun, 10 May 2015 11:35:06 +0800
Subject: ASoC: wm8737: Fixup setting VMID Impedance control register
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From: Axel Lin <axel.lin@xxxxxxxxxx>
commit 14ba3ec1de043260cecd9e828ea2e3a0ad302893 upstream.
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@xxxxxxxxxx>
Signed-off-by: Mark Brown <broonie@xxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
sound/soc/codecs/wm8737.c | 6 ++++--
1 file changed, 4 insertions(+), 2 deletions(-)
--- a/sound/soc/codecs/wm8737.c
+++ b/sound/soc/codecs/wm8737.c
@@ -483,7 +483,8 @@ static int wm8737_set_bias_level(struct
/* 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
/* 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;
Patches currently in stable-queue which might be from axel.lin@xxxxxxxxxx are
queue-4.1/asoc-wm8955-fix-setting-wrong-register-for-wm8955_k_8_0_mask-bits.patch
queue-4.1/asoc-wm8737-fixup-setting-vmid-impedance-control-register.patch
queue-4.1/asoc-wm8903-fix-define-for-wm8903_vmid_res_250k.patch
queue-4.1/asoc-max98925-fix-mask-for-setting-dai-invert-mode.patch
--
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