2006-10-06 16:36:07 +00:00
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/*
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* wm8731.c -- WM8731 ALSA SoC Audio driver
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*
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* Copyright 2005 Openedhand Ltd.
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2012-05-23 11:39:07 +00:00
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* Copyright 2006-12 Wolfson Microelectronics, plc
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2006-10-06 16:36:07 +00:00
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*
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* Author: Richard Purdie <richard@openedhand.com>
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*
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* Based on wm8753.c by Liam Girdwood
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*/
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#include <linux/module.h>
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#include <linux/moduleparam.h>
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#include <linux/init.h>
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#include <linux/delay.h>
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#include <linux/pm.h>
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#include <linux/i2c.h>
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include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h
percpu.h is included by sched.h and module.h and thus ends up being
included when building most .c files. percpu.h includes slab.h which
in turn includes gfp.h making everything defined by the two files
universally available and complicating inclusion dependencies.
percpu.h -> slab.h dependency is about to be removed. Prepare for
this change by updating users of gfp and slab facilities include those
headers directly instead of assuming availability. As this conversion
needs to touch large number of source files, the following script is
used as the basis of conversion.
http://userweb.kernel.org/~tj/misc/slabh-sweep.py
The script does the followings.
* Scan files for gfp and slab usages and update includes such that
only the necessary includes are there. ie. if only gfp is used,
gfp.h, if slab is used, slab.h.
* When the script inserts a new include, it looks at the include
blocks and try to put the new include such that its order conforms
to its surrounding. It's put in the include block which contains
core kernel includes, in the same order that the rest are ordered -
alphabetical, Christmas tree, rev-Xmas-tree or at the end if there
doesn't seem to be any matching order.
* If the script can't find a place to put a new include (mostly
because the file doesn't have fitting include block), it prints out
an error message indicating which .h file needs to be added to the
file.
The conversion was done in the following steps.
1. The initial automatic conversion of all .c files updated slightly
over 4000 files, deleting around 700 includes and adding ~480 gfp.h
and ~3000 slab.h inclusions. The script emitted errors for ~400
files.
2. Each error was manually checked. Some didn't need the inclusion,
some needed manual addition while adding it to implementation .h or
embedding .c file was more appropriate for others. This step added
inclusions to around 150 files.
3. The script was run again and the output was compared to the edits
from #2 to make sure no file was left behind.
4. Several build tests were done and a couple of problems were fixed.
e.g. lib/decompress_*.c used malloc/free() wrappers around slab
APIs requiring slab.h to be added manually.
5. The script was run on all .h files but without automatically
editing them as sprinkling gfp.h and slab.h inclusions around .h
files could easily lead to inclusion dependency hell. Most gfp.h
inclusion directives were ignored as stuff from gfp.h was usually
wildly available and often used in preprocessor macros. Each
slab.h inclusion directive was examined and added manually as
necessary.
6. percpu.h was updated not to include slab.h.
7. Build test were done on the following configurations and failures
were fixed. CONFIG_GCOV_KERNEL was turned off for all tests (as my
distributed build env didn't work with gcov compiles) and a few
more options had to be turned off depending on archs to make things
build (like ipr on powerpc/64 which failed due to missing writeq).
* x86 and x86_64 UP and SMP allmodconfig and a custom test config.
* powerpc and powerpc64 SMP allmodconfig
* sparc and sparc64 SMP allmodconfig
* ia64 SMP allmodconfig
* s390 SMP allmodconfig
* alpha SMP allmodconfig
* um on x86_64 SMP allmodconfig
8. percpu.h modifications were reverted so that it could be applied as
a separate patch and serve as bisection point.
Given the fact that I had only a couple of failures from tests on step
6, I'm fairly confident about the coverage of this conversion patch.
If there is a breakage, it's likely to be something in one of the arch
headers which should be easily discoverable easily on most builds of
the specific arch.
Signed-off-by: Tejun Heo <tj@kernel.org>
Guess-its-ok-by: Christoph Lameter <cl@linux-foundation.org>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Lee Schermerhorn <Lee.Schermerhorn@hp.com>
2010-03-24 08:04:11 +00:00
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#include <linux/slab.h>
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2011-11-21 12:10:03 +00:00
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#include <linux/regmap.h>
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2009-10-26 15:20:17 +00:00
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#include <linux/regulator/consumer.h>
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2008-09-01 17:47:03 +00:00
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#include <linux/spi/spi.h>
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2011-07-26 20:00:13 +00:00
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#include <linux/of_device.h>
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2014-11-09 16:01:00 +00:00
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#include <linux/mutex.h>
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2015-03-12 02:17:11 +00:00
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#include <linux/clk.h>
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2006-10-06 16:36:07 +00:00
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#include <sound/core.h>
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#include <sound/pcm.h>
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#include <sound/pcm_params.h>
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#include <sound/soc.h>
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#include <sound/initval.h>
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2009-07-08 15:53:12 +00:00
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#include <sound/tlv.h>
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2006-10-06 16:36:07 +00:00
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#include "wm8731.h"
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2009-10-26 15:20:17 +00:00
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#define WM8731_NUM_SUPPLIES 4
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static const char *wm8731_supply_names[WM8731_NUM_SUPPLIES] = {
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"AVDD",
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"HPVDD",
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"DCVDD",
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"DBVDD",
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};
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2007-02-02 16:14:56 +00:00
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/* codec private data */
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struct wm8731_priv {
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2011-11-21 12:10:03 +00:00
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struct regmap *regmap;
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2015-03-12 02:17:11 +00:00
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struct clk *mclk;
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2009-10-26 15:20:17 +00:00
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struct regulator_bulk_data supplies[WM8731_NUM_SUPPLIES];
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2013-07-30 09:59:45 +00:00
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const struct snd_pcm_hw_constraint_list *constraints;
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2007-02-02 16:14:56 +00:00
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unsigned int sysclk;
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2010-08-17 22:40:24 +00:00
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int sysclk_type;
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2010-12-02 11:44:00 +00:00
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int playback_fs;
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bool deemph;
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2014-11-09 16:01:00 +00:00
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struct mutex lock;
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2007-02-02 16:14:56 +00:00
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};
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2009-02-16 19:35:43 +00:00
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2006-10-06 16:36:07 +00:00
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/*
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* wm8731 register cache
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*/
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2011-11-21 12:10:03 +00:00
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static const struct reg_default wm8731_reg_defaults[] = {
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{ 0, 0x0097 },
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{ 1, 0x0097 },
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{ 2, 0x0079 },
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{ 3, 0x0079 },
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{ 4, 0x000a },
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{ 5, 0x0008 },
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{ 6, 0x009f },
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{ 7, 0x000a },
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{ 8, 0x0000 },
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{ 9, 0x0000 },
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2006-10-06 16:36:07 +00:00
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};
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2011-11-21 12:10:03 +00:00
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static bool wm8731_volatile(struct device *dev, unsigned int reg)
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{
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return reg == WM8731_RESET;
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}
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static bool wm8731_writeable(struct device *dev, unsigned int reg)
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{
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return reg <= WM8731_RESET;
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}
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2009-07-05 16:24:50 +00:00
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#define wm8731_reset(c) snd_soc_write(c, WM8731_RESET, 0)
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2006-10-06 16:36:07 +00:00
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static const char *wm8731_input_select[] = {"Line In", "Mic"};
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2010-11-30 21:03:44 +00:00
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2014-02-18 09:36:16 +00:00
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static SOC_ENUM_SINGLE_DECL(wm8731_insel_enum,
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WM8731_APANA, 2, wm8731_input_select);
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2010-11-30 21:03:44 +00:00
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2010-12-02 11:44:00 +00:00
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static int wm8731_deemph[] = { 0, 32000, 44100, 48000 };
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static int wm8731_set_deemph(struct snd_soc_codec *codec)
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{
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struct wm8731_priv *wm8731 = snd_soc_codec_get_drvdata(codec);
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int val, i, best;
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/* If we're using deemphasis select the nearest available sample
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* rate.
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*/
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if (wm8731->deemph) {
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best = 1;
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for (i = 2; i < ARRAY_SIZE(wm8731_deemph); i++) {
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if (abs(wm8731_deemph[i] - wm8731->playback_fs) <
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abs(wm8731_deemph[best] - wm8731->playback_fs))
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best = i;
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}
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val = best << 1;
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} else {
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best = 0;
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val = 0;
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}
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dev_dbg(codec->dev, "Set deemphasis %d (%dHz)\n",
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best, wm8731_deemph[best]);
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return snd_soc_update_bits(codec, WM8731_APDIGI, 0x6, val);
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}
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static int wm8731_get_deemph(struct snd_kcontrol *kcontrol,
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struct snd_ctl_elem_value *ucontrol)
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{
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2014-03-18 08:02:04 +00:00
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struct snd_soc_codec *codec = snd_soc_kcontrol_codec(kcontrol);
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2010-12-02 11:44:00 +00:00
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struct wm8731_priv *wm8731 = snd_soc_codec_get_drvdata(codec);
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2015-03-10 11:39:10 +00:00
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ucontrol->value.integer.value[0] = wm8731->deemph;
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2010-12-02 11:44:00 +00:00
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return 0;
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}
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static int wm8731_put_deemph(struct snd_kcontrol *kcontrol,
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struct snd_ctl_elem_value *ucontrol)
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{
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2014-03-18 08:02:04 +00:00
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struct snd_soc_codec *codec = snd_soc_kcontrol_codec(kcontrol);
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2010-12-02 11:44:00 +00:00
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struct wm8731_priv *wm8731 = snd_soc_codec_get_drvdata(codec);
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2015-03-10 11:39:10 +00:00
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int deemph = ucontrol->value.integer.value[0];
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2010-12-02 11:44:00 +00:00
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int ret = 0;
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if (deemph > 1)
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return -EINVAL;
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2014-11-09 16:01:00 +00:00
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mutex_lock(&wm8731->lock);
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2010-12-02 11:44:00 +00:00
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if (wm8731->deemph != deemph) {
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wm8731->deemph = deemph;
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2010-11-30 21:03:44 +00:00
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2010-12-02 11:44:00 +00:00
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wm8731_set_deemph(codec);
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ret = 1;
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}
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2014-11-09 16:01:00 +00:00
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mutex_unlock(&wm8731->lock);
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2010-12-02 11:44:00 +00:00
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return ret;
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}
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2006-10-06 16:36:07 +00:00
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2009-07-08 15:53:12 +00:00
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static const DECLARE_TLV_DB_SCALE(in_tlv, -3450, 150, 0);
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static const DECLARE_TLV_DB_SCALE(sidetone_tlv, -1500, 300, 0);
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static const DECLARE_TLV_DB_SCALE(out_tlv, -12100, 100, 1);
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2010-11-30 21:03:09 +00:00
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static const DECLARE_TLV_DB_SCALE(mic_tlv, 0, 2000, 0);
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2009-07-08 15:53:12 +00:00
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2006-10-06 16:36:07 +00:00
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static const struct snd_kcontrol_new wm8731_snd_controls[] = {
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2009-07-08 15:53:12 +00:00
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SOC_DOUBLE_R_TLV("Master Playback Volume", WM8731_LOUT1V, WM8731_ROUT1V,
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0, 127, 0, out_tlv),
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2006-11-09 15:35:01 +00:00
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SOC_DOUBLE_R("Master Playback ZC Switch", WM8731_LOUT1V, WM8731_ROUT1V,
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7, 1, 0),
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2006-10-06 16:36:07 +00:00
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2009-07-08 15:53:12 +00:00
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SOC_DOUBLE_R_TLV("Capture Volume", WM8731_LINVOL, WM8731_RINVOL, 0, 31, 0,
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in_tlv),
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2006-10-06 16:36:07 +00:00
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SOC_DOUBLE_R("Line Capture Switch", WM8731_LINVOL, WM8731_RINVOL, 7, 1, 1),
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2010-11-30 21:03:09 +00:00
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SOC_SINGLE_TLV("Mic Boost Volume", WM8731_APANA, 0, 1, 0, mic_tlv),
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2009-07-08 16:05:43 +00:00
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SOC_SINGLE("Mic Capture Switch", WM8731_APANA, 1, 1, 1),
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2006-10-06 16:36:07 +00:00
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2009-07-08 15:53:12 +00:00
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SOC_SINGLE_TLV("Sidetone Playback Volume", WM8731_APANA, 6, 3, 1,
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sidetone_tlv),
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2006-10-06 16:36:07 +00:00
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SOC_SINGLE("ADC High Pass Filter Switch", WM8731_APDIGI, 0, 1, 1),
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SOC_SINGLE("Store DC Offset Switch", WM8731_APDIGI, 4, 1, 0),
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2010-12-02 11:44:00 +00:00
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SOC_SINGLE_BOOL_EXT("Playback Deemphasis Switch", 0,
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wm8731_get_deemph, wm8731_put_deemph),
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2006-10-06 16:36:07 +00:00
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};
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/* Output Mixer */
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static const struct snd_kcontrol_new wm8731_output_mixer_controls[] = {
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SOC_DAPM_SINGLE("Line Bypass Switch", WM8731_APANA, 3, 1, 0),
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SOC_DAPM_SINGLE("Mic Sidetone Switch", WM8731_APANA, 5, 1, 0),
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SOC_DAPM_SINGLE("HiFi Playback Switch", WM8731_APANA, 4, 1, 0),
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};
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/* Input mux */
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static const struct snd_kcontrol_new wm8731_input_mux_controls =
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2010-11-30 21:03:44 +00:00
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SOC_DAPM_ENUM("Input Select", wm8731_insel_enum);
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2006-10-06 16:36:07 +00:00
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static const struct snd_soc_dapm_widget wm8731_dapm_widgets[] = {
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2011-07-04 17:27:51 +00:00
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SND_SOC_DAPM_SUPPLY("ACTIVE",WM8731_ACTIVE, 0, 0, NULL, 0),
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2010-08-17 22:40:24 +00:00
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SND_SOC_DAPM_SUPPLY("OSC", WM8731_PWR, 5, 1, NULL, 0),
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2006-10-06 16:36:07 +00:00
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SND_SOC_DAPM_MIXER("Output Mixer", WM8731_PWR, 4, 1,
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&wm8731_output_mixer_controls[0],
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ARRAY_SIZE(wm8731_output_mixer_controls)),
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SND_SOC_DAPM_DAC("DAC", "HiFi Playback", WM8731_PWR, 3, 1),
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SND_SOC_DAPM_OUTPUT("LOUT"),
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SND_SOC_DAPM_OUTPUT("LHPOUT"),
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SND_SOC_DAPM_OUTPUT("ROUT"),
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SND_SOC_DAPM_OUTPUT("RHPOUT"),
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SND_SOC_DAPM_ADC("ADC", "HiFi Capture", WM8731_PWR, 2, 1),
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SND_SOC_DAPM_MUX("Input Mux", SND_SOC_NOPM, 0, 0, &wm8731_input_mux_controls),
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SND_SOC_DAPM_PGA("Line Input", WM8731_PWR, 0, 1, NULL, 0),
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SND_SOC_DAPM_MICBIAS("Mic Bias", WM8731_PWR, 1, 1),
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SND_SOC_DAPM_INPUT("MICIN"),
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SND_SOC_DAPM_INPUT("RLINEIN"),
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SND_SOC_DAPM_INPUT("LLINEIN"),
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};
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2010-08-17 22:40:24 +00:00
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static int wm8731_check_osc(struct snd_soc_dapm_widget *source,
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struct snd_soc_dapm_widget *sink)
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{
|
2015-01-13 09:27:14 +00:00
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struct snd_soc_codec *codec = snd_soc_dapm_to_codec(source->dapm);
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struct wm8731_priv *wm8731 = snd_soc_codec_get_drvdata(codec);
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2010-08-17 22:40:24 +00:00
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2011-05-24 09:50:57 +00:00
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return wm8731->sysclk_type == WM8731_SYSCLK_XTAL;
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2010-08-17 22:40:24 +00:00
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}
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2011-03-27 13:33:03 +00:00
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static const struct snd_soc_dapm_route wm8731_intercon[] = {
|
2010-08-17 22:40:24 +00:00
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{"DAC", NULL, "OSC", wm8731_check_osc},
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{"ADC", NULL, "OSC", wm8731_check_osc},
|
2011-07-04 17:27:51 +00:00
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{"DAC", NULL, "ACTIVE"},
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{"ADC", NULL, "ACTIVE"},
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2010-08-17 22:40:24 +00:00
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2006-10-06 16:36:07 +00:00
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/* output mixer */
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{"Output Mixer", "Line Bypass Switch", "Line Input"},
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{"Output Mixer", "HiFi Playback Switch", "DAC"},
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{"Output Mixer", "Mic Sidetone Switch", "Mic Bias"},
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/* outputs */
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{"RHPOUT", NULL, "Output Mixer"},
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|
|
{"ROUT", NULL, "Output Mixer"},
|
|
|
|
{"LHPOUT", NULL, "Output Mixer"},
|
|
|
|
{"LOUT", NULL, "Output Mixer"},
|
|
|
|
|
|
|
|
/* input mux */
|
|
|
|
{"Input Mux", "Line In", "Line Input"},
|
|
|
|
{"Input Mux", "Mic", "Mic Bias"},
|
|
|
|
{"ADC", NULL, "Input Mux"},
|
|
|
|
|
|
|
|
/* inputs */
|
|
|
|
{"Line Input", NULL, "LLINEIN"},
|
|
|
|
{"Line Input", NULL, "RLINEIN"},
|
|
|
|
{"Mic Bias", NULL, "MICIN"},
|
|
|
|
};
|
|
|
|
|
|
|
|
struct _coeff_div {
|
|
|
|
u32 mclk;
|
|
|
|
u32 rate;
|
|
|
|
u16 fs;
|
|
|
|
u8 sr:4;
|
|
|
|
u8 bosr:1;
|
|
|
|
u8 usb:1;
|
|
|
|
};
|
|
|
|
|
|
|
|
/* codec mclk clock divider coefficients */
|
|
|
|
static const struct _coeff_div coeff_div[] = {
|
|
|
|
/* 48k */
|
|
|
|
{12288000, 48000, 256, 0x0, 0x0, 0x0},
|
|
|
|
{18432000, 48000, 384, 0x0, 0x1, 0x0},
|
|
|
|
{12000000, 48000, 250, 0x0, 0x0, 0x1},
|
|
|
|
|
|
|
|
/* 32k */
|
|
|
|
{12288000, 32000, 384, 0x6, 0x0, 0x0},
|
|
|
|
{18432000, 32000, 576, 0x6, 0x1, 0x0},
|
2007-01-31 09:02:56 +00:00
|
|
|
{12000000, 32000, 375, 0x6, 0x0, 0x1},
|
2006-10-06 16:36:07 +00:00
|
|
|
|
|
|
|
/* 8k */
|
|
|
|
{12288000, 8000, 1536, 0x3, 0x0, 0x0},
|
|
|
|
{18432000, 8000, 2304, 0x3, 0x1, 0x0},
|
|
|
|
{11289600, 8000, 1408, 0xb, 0x0, 0x0},
|
|
|
|
{16934400, 8000, 2112, 0xb, 0x1, 0x0},
|
|
|
|
{12000000, 8000, 1500, 0x3, 0x0, 0x1},
|
|
|
|
|
|
|
|
/* 96k */
|
|
|
|
{12288000, 96000, 128, 0x7, 0x0, 0x0},
|
|
|
|
{18432000, 96000, 192, 0x7, 0x1, 0x0},
|
|
|
|
{12000000, 96000, 125, 0x7, 0x0, 0x1},
|
|
|
|
|
|
|
|
/* 44.1k */
|
|
|
|
{11289600, 44100, 256, 0x8, 0x0, 0x0},
|
|
|
|
{16934400, 44100, 384, 0x8, 0x1, 0x0},
|
|
|
|
{12000000, 44100, 272, 0x8, 0x1, 0x1},
|
|
|
|
|
|
|
|
/* 88.2k */
|
|
|
|
{11289600, 88200, 128, 0xf, 0x0, 0x0},
|
|
|
|
{16934400, 88200, 192, 0xf, 0x1, 0x0},
|
|
|
|
{12000000, 88200, 136, 0xf, 0x1, 0x1},
|
|
|
|
};
|
|
|
|
|
2013-07-30 09:59:45 +00:00
|
|
|
/* rates constraints */
|
|
|
|
static const unsigned int wm8731_rates_12000000[] = {
|
|
|
|
8000, 32000, 44100, 48000, 96000, 88200,
|
|
|
|
};
|
|
|
|
|
|
|
|
static const unsigned int wm8731_rates_12288000_18432000[] = {
|
|
|
|
8000, 32000, 48000, 96000,
|
|
|
|
};
|
|
|
|
|
|
|
|
static const unsigned int wm8731_rates_11289600_16934400[] = {
|
|
|
|
8000, 44100, 88200,
|
|
|
|
};
|
|
|
|
|
|
|
|
static const struct snd_pcm_hw_constraint_list wm8731_constraints_12000000 = {
|
|
|
|
.list = wm8731_rates_12000000,
|
|
|
|
.count = ARRAY_SIZE(wm8731_rates_12000000),
|
|
|
|
};
|
|
|
|
|
|
|
|
static const
|
|
|
|
struct snd_pcm_hw_constraint_list wm8731_constraints_12288000_18432000 = {
|
|
|
|
.list = wm8731_rates_12288000_18432000,
|
|
|
|
.count = ARRAY_SIZE(wm8731_rates_12288000_18432000),
|
|
|
|
};
|
|
|
|
|
|
|
|
static const
|
|
|
|
struct snd_pcm_hw_constraint_list wm8731_constraints_11289600_16934400 = {
|
|
|
|
.list = wm8731_rates_11289600_16934400,
|
|
|
|
.count = ARRAY_SIZE(wm8731_rates_11289600_16934400),
|
|
|
|
};
|
|
|
|
|
2006-10-06 16:36:07 +00:00
|
|
|
static inline int get_coeff(int mclk, int rate)
|
|
|
|
{
|
|
|
|
int i;
|
|
|
|
|
|
|
|
for (i = 0; i < ARRAY_SIZE(coeff_div); i++) {
|
|
|
|
if (coeff_div[i].rate == rate && coeff_div[i].mclk == mclk)
|
|
|
|
return i;
|
|
|
|
}
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
2007-02-02 16:14:56 +00:00
|
|
|
static int wm8731_hw_params(struct snd_pcm_substream *substream,
|
2008-11-18 22:11:38 +00:00
|
|
|
struct snd_pcm_hw_params *params,
|
|
|
|
struct snd_soc_dai *dai)
|
2006-10-06 16:36:07 +00:00
|
|
|
{
|
2010-03-17 20:15:21 +00:00
|
|
|
struct snd_soc_codec *codec = dai->codec;
|
2010-04-14 06:35:19 +00:00
|
|
|
struct wm8731_priv *wm8731 = snd_soc_codec_get_drvdata(codec);
|
2009-07-05 16:24:50 +00:00
|
|
|
u16 iface = snd_soc_read(codec, WM8731_IFACE) & 0xfff3;
|
2007-02-02 16:14:56 +00:00
|
|
|
int i = get_coeff(wm8731->sysclk, params_rate(params));
|
|
|
|
u16 srate = (coeff_div[i].sr << 2) |
|
|
|
|
(coeff_div[i].bosr << 1) | coeff_div[i].usb;
|
2006-10-06 16:36:07 +00:00
|
|
|
|
2010-12-02 11:44:00 +00:00
|
|
|
wm8731->playback_fs = params_rate(params);
|
|
|
|
|
2009-07-05 16:24:50 +00:00
|
|
|
snd_soc_write(codec, WM8731_SRATE, srate);
|
2007-02-02 16:14:56 +00:00
|
|
|
|
|
|
|
/* bit size */
|
2014-07-31 11:51:32 +00:00
|
|
|
switch (params_width(params)) {
|
|
|
|
case 16:
|
2007-02-02 16:14:56 +00:00
|
|
|
break;
|
2014-07-31 11:51:32 +00:00
|
|
|
case 20:
|
2007-02-02 16:14:56 +00:00
|
|
|
iface |= 0x0004;
|
|
|
|
break;
|
2014-07-31 11:51:32 +00:00
|
|
|
case 24:
|
2007-02-02 16:14:56 +00:00
|
|
|
iface |= 0x0008;
|
|
|
|
break;
|
|
|
|
}
|
2006-10-06 16:36:07 +00:00
|
|
|
|
2010-12-02 11:44:00 +00:00
|
|
|
wm8731_set_deemph(codec);
|
|
|
|
|
2009-07-05 16:24:50 +00:00
|
|
|
snd_soc_write(codec, WM8731_IFACE, iface);
|
2007-02-02 16:14:56 +00:00
|
|
|
return 0;
|
2006-10-06 16:36:07 +00:00
|
|
|
}
|
|
|
|
|
2008-07-07 15:07:52 +00:00
|
|
|
static int wm8731_mute(struct snd_soc_dai *dai, int mute)
|
2007-02-02 16:14:56 +00:00
|
|
|
{
|
|
|
|
struct snd_soc_codec *codec = dai->codec;
|
2009-07-05 16:24:50 +00:00
|
|
|
u16 mute_reg = snd_soc_read(codec, WM8731_APDIGI) & 0xfff7;
|
2007-02-02 16:14:56 +00:00
|
|
|
|
|
|
|
if (mute)
|
2009-07-05 16:24:50 +00:00
|
|
|
snd_soc_write(codec, WM8731_APDIGI, mute_reg | 0x8);
|
2007-02-02 16:14:56 +00:00
|
|
|
else
|
2009-07-05 16:24:50 +00:00
|
|
|
snd_soc_write(codec, WM8731_APDIGI, mute_reg);
|
2007-02-02 16:14:56 +00:00
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
2008-07-07 15:07:52 +00:00
|
|
|
static int wm8731_set_dai_sysclk(struct snd_soc_dai *codec_dai,
|
2007-02-02 16:14:56 +00:00
|
|
|
int clk_id, unsigned int freq, int dir)
|
|
|
|
{
|
|
|
|
struct snd_soc_codec *codec = codec_dai->codec;
|
2010-04-14 06:35:19 +00:00
|
|
|
struct wm8731_priv *wm8731 = snd_soc_codec_get_drvdata(codec);
|
2007-02-02 16:14:56 +00:00
|
|
|
|
2010-08-17 22:40:24 +00:00
|
|
|
switch (clk_id) {
|
|
|
|
case WM8731_SYSCLK_XTAL:
|
|
|
|
case WM8731_SYSCLK_MCLK:
|
2015-03-12 02:17:11 +00:00
|
|
|
if (wm8731->mclk && clk_set_rate(wm8731->mclk, freq))
|
|
|
|
return -EINVAL;
|
2010-08-17 22:40:24 +00:00
|
|
|
wm8731->sysclk_type = clk_id;
|
|
|
|
break;
|
|
|
|
default:
|
|
|
|
return -EINVAL;
|
|
|
|
}
|
|
|
|
|
2007-02-02 16:14:56 +00:00
|
|
|
switch (freq) {
|
2013-07-30 09:59:45 +00:00
|
|
|
case 0:
|
|
|
|
wm8731->constraints = NULL;
|
|
|
|
break;
|
2007-02-02 16:14:56 +00:00
|
|
|
case 12000000:
|
2013-07-30 09:59:45 +00:00
|
|
|
wm8731->constraints = &wm8731_constraints_12000000;
|
|
|
|
break;
|
2007-02-02 16:14:56 +00:00
|
|
|
case 12288000:
|
|
|
|
case 18432000:
|
2013-07-30 09:59:45 +00:00
|
|
|
wm8731->constraints = &wm8731_constraints_12288000_18432000;
|
|
|
|
break;
|
|
|
|
case 16934400:
|
|
|
|
case 11289600:
|
|
|
|
wm8731->constraints = &wm8731_constraints_11289600_16934400;
|
2010-08-17 22:40:24 +00:00
|
|
|
break;
|
|
|
|
default:
|
|
|
|
return -EINVAL;
|
2007-02-02 16:14:56 +00:00
|
|
|
}
|
2010-08-17 22:40:24 +00:00
|
|
|
|
2013-07-30 09:59:45 +00:00
|
|
|
wm8731->sysclk = freq;
|
|
|
|
|
2010-11-05 13:53:46 +00:00
|
|
|
snd_soc_dapm_sync(&codec->dapm);
|
2010-08-17 22:40:24 +00:00
|
|
|
|
|
|
|
return 0;
|
2007-02-02 16:14:56 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
|
2008-07-07 15:07:52 +00:00
|
|
|
static int wm8731_set_dai_fmt(struct snd_soc_dai *codec_dai,
|
2007-02-02 16:14:56 +00:00
|
|
|
unsigned int fmt)
|
|
|
|
{
|
|
|
|
struct snd_soc_codec *codec = codec_dai->codec;
|
|
|
|
u16 iface = 0;
|
2006-10-06 16:36:07 +00:00
|
|
|
|
|
|
|
/* set master/slave audio interface */
|
2007-02-02 16:14:56 +00:00
|
|
|
switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
|
2006-10-06 16:36:07 +00:00
|
|
|
case SND_SOC_DAIFMT_CBM_CFM:
|
|
|
|
iface |= 0x0040;
|
|
|
|
break;
|
|
|
|
case SND_SOC_DAIFMT_CBS_CFS:
|
|
|
|
break;
|
2007-02-02 16:14:56 +00:00
|
|
|
default:
|
|
|
|
return -EINVAL;
|
2006-10-06 16:36:07 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
/* interface format */
|
2007-02-02 16:14:56 +00:00
|
|
|
switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
|
2006-10-06 16:36:07 +00:00
|
|
|
case SND_SOC_DAIFMT_I2S:
|
|
|
|
iface |= 0x0002;
|
|
|
|
break;
|
|
|
|
case SND_SOC_DAIFMT_RIGHT_J:
|
|
|
|
break;
|
|
|
|
case SND_SOC_DAIFMT_LEFT_J:
|
|
|
|
iface |= 0x0001;
|
|
|
|
break;
|
|
|
|
case SND_SOC_DAIFMT_DSP_A:
|
2013-12-03 10:04:54 +00:00
|
|
|
iface |= 0x0013;
|
2006-10-06 16:36:07 +00:00
|
|
|
break;
|
|
|
|
case SND_SOC_DAIFMT_DSP_B:
|
2013-12-03 10:04:54 +00:00
|
|
|
iface |= 0x0003;
|
2006-10-06 16:36:07 +00:00
|
|
|
break;
|
2007-02-02 16:14:56 +00:00
|
|
|
default:
|
|
|
|
return -EINVAL;
|
2006-10-06 16:36:07 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
/* clock inversion */
|
2007-02-02 16:14:56 +00:00
|
|
|
switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
|
2006-10-06 16:36:07 +00:00
|
|
|
case SND_SOC_DAIFMT_NB_NF:
|
|
|
|
break;
|
|
|
|
case SND_SOC_DAIFMT_IB_IF:
|
|
|
|
iface |= 0x0090;
|
|
|
|
break;
|
|
|
|
case SND_SOC_DAIFMT_IB_NF:
|
|
|
|
iface |= 0x0080;
|
|
|
|
break;
|
|
|
|
case SND_SOC_DAIFMT_NB_IF:
|
|
|
|
iface |= 0x0010;
|
|
|
|
break;
|
2007-02-02 16:14:56 +00:00
|
|
|
default:
|
|
|
|
return -EINVAL;
|
2006-10-06 16:36:07 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
/* set iface */
|
2009-07-05 16:24:50 +00:00
|
|
|
snd_soc_write(codec, WM8731_IFACE, iface);
|
2006-10-06 16:36:07 +00:00
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
2008-05-19 10:31:28 +00:00
|
|
|
static int wm8731_set_bias_level(struct snd_soc_codec *codec,
|
|
|
|
enum snd_soc_bias_level level)
|
2006-10-06 16:36:07 +00:00
|
|
|
{
|
2010-05-07 18:14:45 +00:00
|
|
|
struct wm8731_priv *wm8731 = snd_soc_codec_get_drvdata(codec);
|
2011-10-07 13:39:09 +00:00
|
|
|
int ret;
|
2009-02-16 19:20:15 +00:00
|
|
|
u16 reg;
|
2006-10-06 16:36:07 +00:00
|
|
|
|
2008-05-19 10:31:28 +00:00
|
|
|
switch (level) {
|
|
|
|
case SND_SOC_BIAS_ON:
|
2015-03-12 02:17:11 +00:00
|
|
|
if (wm8731->mclk)
|
|
|
|
clk_prepare_enable(wm8731->mclk);
|
2006-10-06 16:36:07 +00:00
|
|
|
break;
|
2008-05-19 10:31:28 +00:00
|
|
|
case SND_SOC_BIAS_PREPARE:
|
2006-10-06 16:36:07 +00:00
|
|
|
break;
|
2008-05-19 10:31:28 +00:00
|
|
|
case SND_SOC_BIAS_STANDBY:
|
2010-11-05 13:53:46 +00:00
|
|
|
if (codec->dapm.bias_level == SND_SOC_BIAS_OFF) {
|
2010-05-07 18:14:45 +00:00
|
|
|
ret = regulator_bulk_enable(ARRAY_SIZE(wm8731->supplies),
|
|
|
|
wm8731->supplies);
|
|
|
|
if (ret != 0)
|
|
|
|
return ret;
|
|
|
|
|
2011-11-21 12:10:03 +00:00
|
|
|
regcache_sync(wm8731->regmap);
|
2010-05-07 18:14:45 +00:00
|
|
|
}
|
|
|
|
|
2009-02-16 19:20:15 +00:00
|
|
|
/* Clear PWROFF, gate CLKOUT, everything else as-is */
|
2009-07-05 16:24:50 +00:00
|
|
|
reg = snd_soc_read(codec, WM8731_PWR) & 0xff7f;
|
|
|
|
snd_soc_write(codec, WM8731_PWR, reg | 0x0040);
|
2006-10-06 16:36:07 +00:00
|
|
|
break;
|
2008-05-19 10:31:28 +00:00
|
|
|
case SND_SOC_BIAS_OFF:
|
2015-03-12 02:17:11 +00:00
|
|
|
if (wm8731->mclk)
|
|
|
|
clk_disable_unprepare(wm8731->mclk);
|
2009-07-05 16:24:50 +00:00
|
|
|
snd_soc_write(codec, WM8731_PWR, 0xffff);
|
2010-05-07 18:14:45 +00:00
|
|
|
regulator_bulk_disable(ARRAY_SIZE(wm8731->supplies),
|
|
|
|
wm8731->supplies);
|
2011-11-21 12:10:03 +00:00
|
|
|
regcache_mark_dirty(wm8731->regmap);
|
2006-10-06 16:36:07 +00:00
|
|
|
break;
|
|
|
|
}
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
2013-07-30 09:59:45 +00:00
|
|
|
static int wm8731_startup(struct snd_pcm_substream *substream,
|
|
|
|
struct snd_soc_dai *dai)
|
|
|
|
{
|
|
|
|
struct wm8731_priv *wm8731 = snd_soc_codec_get_drvdata(dai->codec);
|
|
|
|
|
|
|
|
if (wm8731->constraints)
|
|
|
|
snd_pcm_hw_constraint_list(substream->runtime, 0,
|
|
|
|
SNDRV_PCM_HW_PARAM_RATE,
|
|
|
|
wm8731->constraints);
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
2010-04-09 17:08:08 +00:00
|
|
|
#define WM8731_RATES SNDRV_PCM_RATE_8000_96000
|
2007-02-02 16:14:56 +00:00
|
|
|
|
|
|
|
#define WM8731_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE |\
|
|
|
|
SNDRV_PCM_FMTBIT_S24_LE)
|
|
|
|
|
2011-11-23 10:40:40 +00:00
|
|
|
static const struct snd_soc_dai_ops wm8731_dai_ops = {
|
2013-07-30 09:59:45 +00:00
|
|
|
.startup = wm8731_startup,
|
2009-03-03 01:41:00 +00:00
|
|
|
.hw_params = wm8731_hw_params,
|
|
|
|
.digital_mute = wm8731_mute,
|
|
|
|
.set_sysclk = wm8731_set_dai_sysclk,
|
|
|
|
.set_fmt = wm8731_set_dai_fmt,
|
|
|
|
};
|
|
|
|
|
2010-03-17 20:15:21 +00:00
|
|
|
static struct snd_soc_dai_driver wm8731_dai = {
|
|
|
|
.name = "wm8731-hifi",
|
2006-10-06 16:36:07 +00:00
|
|
|
.playback = {
|
|
|
|
.stream_name = "Playback",
|
|
|
|
.channels_min = 1,
|
|
|
|
.channels_max = 2,
|
2007-02-02 16:14:56 +00:00
|
|
|
.rates = WM8731_RATES,
|
|
|
|
.formats = WM8731_FORMATS,},
|
2006-10-06 16:36:07 +00:00
|
|
|
.capture = {
|
|
|
|
.stream_name = "Capture",
|
|
|
|
.channels_min = 1,
|
|
|
|
.channels_max = 2,
|
2007-02-02 16:14:56 +00:00
|
|
|
.rates = WM8731_RATES,
|
|
|
|
.formats = WM8731_FORMATS,},
|
2009-03-03 01:41:00 +00:00
|
|
|
.ops = &wm8731_dai_ops,
|
2009-07-08 16:48:12 +00:00
|
|
|
.symmetric_rates = 1,
|
2006-10-06 16:36:07 +00:00
|
|
|
};
|
|
|
|
|
2010-03-17 20:15:21 +00:00
|
|
|
static int wm8731_probe(struct snd_soc_codec *codec)
|
2006-10-06 16:36:07 +00:00
|
|
|
{
|
2010-03-17 20:15:21 +00:00
|
|
|
struct wm8731_priv *wm8731 = snd_soc_codec_get_drvdata(codec);
|
|
|
|
int ret = 0, i;
|
2009-02-16 20:49:16 +00:00
|
|
|
|
2009-10-26 15:20:17 +00:00
|
|
|
for (i = 0; i < ARRAY_SIZE(wm8731->supplies); i++)
|
|
|
|
wm8731->supplies[i].supply = wm8731_supply_names[i];
|
|
|
|
|
2014-04-25 01:27:04 +00:00
|
|
|
ret = devm_regulator_bulk_get(codec->dev, ARRAY_SIZE(wm8731->supplies),
|
2009-10-26 15:20:17 +00:00
|
|
|
wm8731->supplies);
|
|
|
|
if (ret != 0) {
|
|
|
|
dev_err(codec->dev, "Failed to request supplies: %d\n", ret);
|
2010-03-17 20:15:21 +00:00
|
|
|
return ret;
|
2009-10-26 15:20:17 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
ret = regulator_bulk_enable(ARRAY_SIZE(wm8731->supplies),
|
|
|
|
wm8731->supplies);
|
|
|
|
if (ret != 0) {
|
|
|
|
dev_err(codec->dev, "Failed to enable supplies: %d\n", ret);
|
2014-04-25 01:27:04 +00:00
|
|
|
return ret;
|
2009-10-26 15:20:17 +00:00
|
|
|
}
|
|
|
|
|
2009-02-18 21:06:01 +00:00
|
|
|
ret = wm8731_reset(codec);
|
|
|
|
if (ret < 0) {
|
2009-07-05 14:18:01 +00:00
|
|
|
dev_err(codec->dev, "Failed to issue reset: %d\n", ret);
|
2009-10-26 15:20:17 +00:00
|
|
|
goto err_regulator_enable;
|
2009-02-18 21:06:01 +00:00
|
|
|
}
|
|
|
|
|
2015-04-27 20:13:24 +00:00
|
|
|
snd_soc_codec_force_bias_level(codec, SND_SOC_BIAS_STANDBY);
|
2009-02-16 20:49:16 +00:00
|
|
|
|
|
|
|
/* Latch the update bits */
|
2009-07-05 16:24:50 +00:00
|
|
|
snd_soc_update_bits(codec, WM8731_LOUT1V, 0x100, 0);
|
|
|
|
snd_soc_update_bits(codec, WM8731_ROUT1V, 0x100, 0);
|
|
|
|
snd_soc_update_bits(codec, WM8731_LINVOL, 0x100, 0);
|
|
|
|
snd_soc_update_bits(codec, WM8731_RINVOL, 0x100, 0);
|
2009-02-16 20:49:16 +00:00
|
|
|
|
2009-02-19 14:29:49 +00:00
|
|
|
/* Disable bypass path by default */
|
2010-12-01 09:38:55 +00:00
|
|
|
snd_soc_update_bits(codec, WM8731_APANA, 0x8, 0);
|
2009-02-19 14:29:49 +00:00
|
|
|
|
2010-05-07 18:14:45 +00:00
|
|
|
/* Regulators will have been enabled by bias management */
|
|
|
|
regulator_bulk_disable(ARRAY_SIZE(wm8731->supplies), wm8731->supplies);
|
|
|
|
|
2009-02-16 19:35:43 +00:00
|
|
|
return 0;
|
2009-07-05 14:18:01 +00:00
|
|
|
|
2009-10-26 15:20:17 +00:00
|
|
|
err_regulator_enable:
|
|
|
|
regulator_bulk_disable(ARRAY_SIZE(wm8731->supplies), wm8731->supplies);
|
2010-03-17 20:15:21 +00:00
|
|
|
|
2009-07-05 14:18:01 +00:00
|
|
|
return ret;
|
2009-02-16 19:35:43 +00:00
|
|
|
}
|
|
|
|
|
2010-03-17 20:15:21 +00:00
|
|
|
/* power down chip */
|
|
|
|
static int wm8731_remove(struct snd_soc_codec *codec)
|
2009-02-16 20:49:16 +00:00
|
|
|
{
|
2010-03-17 20:15:21 +00:00
|
|
|
struct wm8731_priv *wm8731 = snd_soc_codec_get_drvdata(codec);
|
|
|
|
|
|
|
|
regulator_bulk_disable(ARRAY_SIZE(wm8731->supplies), wm8731->supplies);
|
|
|
|
|
|
|
|
return 0;
|
2009-02-16 20:49:16 +00:00
|
|
|
}
|
2009-02-16 19:35:43 +00:00
|
|
|
|
2010-03-17 20:15:21 +00:00
|
|
|
static struct snd_soc_codec_driver soc_codec_dev_wm8731 = {
|
|
|
|
.probe = wm8731_probe,
|
|
|
|
.remove = wm8731_remove,
|
|
|
|
.set_bias_level = wm8731_set_bias_level,
|
2014-11-23 12:37:24 +00:00
|
|
|
.suspend_bias_off = true,
|
|
|
|
|
2011-03-27 13:33:03 +00:00
|
|
|
.dapm_widgets = wm8731_dapm_widgets,
|
|
|
|
.num_dapm_widgets = ARRAY_SIZE(wm8731_dapm_widgets),
|
|
|
|
.dapm_routes = wm8731_intercon,
|
|
|
|
.num_dapm_routes = ARRAY_SIZE(wm8731_intercon),
|
2011-11-21 12:59:52 +00:00
|
|
|
.controls = wm8731_snd_controls,
|
|
|
|
.num_controls = ARRAY_SIZE(wm8731_snd_controls),
|
2010-03-17 20:15:21 +00:00
|
|
|
};
|
|
|
|
|
2011-07-26 20:00:13 +00:00
|
|
|
static const struct of_device_id wm8731_of_match[] = {
|
|
|
|
{ .compatible = "wlf,wm8731", },
|
|
|
|
{ }
|
|
|
|
};
|
|
|
|
|
|
|
|
MODULE_DEVICE_TABLE(of, wm8731_of_match);
|
|
|
|
|
2011-11-21 12:10:03 +00:00
|
|
|
static const struct regmap_config wm8731_regmap = {
|
|
|
|
.reg_bits = 7,
|
|
|
|
.val_bits = 9,
|
|
|
|
|
|
|
|
.max_register = WM8731_RESET,
|
|
|
|
.volatile_reg = wm8731_volatile,
|
|
|
|
.writeable_reg = wm8731_writeable,
|
|
|
|
|
|
|
|
.cache_type = REGCACHE_RBTREE,
|
|
|
|
.reg_defaults = wm8731_reg_defaults,
|
|
|
|
.num_reg_defaults = ARRAY_SIZE(wm8731_reg_defaults),
|
|
|
|
};
|
|
|
|
|
2009-02-16 20:49:16 +00:00
|
|
|
#if defined(CONFIG_SPI_MASTER)
|
2012-12-07 14:26:37 +00:00
|
|
|
static int wm8731_spi_probe(struct spi_device *spi)
|
2009-02-16 20:49:16 +00:00
|
|
|
{
|
|
|
|
struct wm8731_priv *wm8731;
|
2010-03-17 20:15:21 +00:00
|
|
|
int ret;
|
2009-02-16 20:49:16 +00:00
|
|
|
|
2014-10-24 15:01:27 +00:00
|
|
|
wm8731 = devm_kzalloc(&spi->dev, sizeof(*wm8731), GFP_KERNEL);
|
2009-02-16 20:49:16 +00:00
|
|
|
if (wm8731 == NULL)
|
|
|
|
return -ENOMEM;
|
|
|
|
|
2015-03-12 02:17:11 +00:00
|
|
|
wm8731->mclk = devm_clk_get(&spi->dev, "mclk");
|
|
|
|
if (IS_ERR(wm8731->mclk)) {
|
|
|
|
ret = PTR_ERR(wm8731->mclk);
|
|
|
|
if (ret == -ENOENT) {
|
|
|
|
wm8731->mclk = NULL;
|
|
|
|
dev_warn(&spi->dev, "Assuming static MCLK\n");
|
|
|
|
} else {
|
|
|
|
dev_err(&spi->dev, "Failed to get MCLK: %d\n",
|
|
|
|
ret);
|
|
|
|
return ret;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2014-11-09 16:01:00 +00:00
|
|
|
mutex_init(&wm8731->lock);
|
|
|
|
|
2012-05-12 19:08:43 +00:00
|
|
|
wm8731->regmap = devm_regmap_init_spi(spi, &wm8731_regmap);
|
2011-11-21 12:10:03 +00:00
|
|
|
if (IS_ERR(wm8731->regmap)) {
|
|
|
|
ret = PTR_ERR(wm8731->regmap);
|
|
|
|
dev_err(&spi->dev, "Failed to allocate register map: %d\n",
|
|
|
|
ret);
|
2012-05-12 19:08:43 +00:00
|
|
|
return ret;
|
2011-11-21 12:10:03 +00:00
|
|
|
}
|
|
|
|
|
2010-03-17 20:15:21 +00:00
|
|
|
spi_set_drvdata(spi, wm8731);
|
2009-02-18 12:44:40 +00:00
|
|
|
|
2010-03-17 20:15:21 +00:00
|
|
|
ret = snd_soc_register_codec(&spi->dev,
|
|
|
|
&soc_codec_dev_wm8731, &wm8731_dai, 1);
|
2011-11-21 12:10:03 +00:00
|
|
|
if (ret != 0) {
|
|
|
|
dev_err(&spi->dev, "Failed to register CODEC: %d\n", ret);
|
2012-05-12 19:08:43 +00:00
|
|
|
return ret;
|
2011-11-21 12:10:03 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
return 0;
|
2009-02-16 20:49:16 +00:00
|
|
|
}
|
|
|
|
|
2012-12-07 14:26:37 +00:00
|
|
|
static int wm8731_spi_remove(struct spi_device *spi)
|
2009-02-16 20:49:16 +00:00
|
|
|
{
|
2010-03-17 20:15:21 +00:00
|
|
|
snd_soc_unregister_codec(&spi->dev);
|
2009-02-16 20:49:16 +00:00
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
static struct spi_driver wm8731_spi_driver = {
|
|
|
|
.driver = {
|
2011-03-27 13:35:15 +00:00
|
|
|
.name = "wm8731",
|
2009-02-16 20:49:16 +00:00
|
|
|
.owner = THIS_MODULE,
|
2011-07-26 20:00:13 +00:00
|
|
|
.of_match_table = wm8731_of_match,
|
2009-02-16 20:49:16 +00:00
|
|
|
},
|
|
|
|
.probe = wm8731_spi_probe,
|
2012-12-07 14:26:37 +00:00
|
|
|
.remove = wm8731_spi_remove,
|
2009-02-16 20:49:16 +00:00
|
|
|
};
|
2009-02-16 19:35:43 +00:00
|
|
|
#endif /* CONFIG_SPI_MASTER */
|
|
|
|
|
2013-11-21 14:38:43 +00:00
|
|
|
#if IS_ENABLED(CONFIG_I2C)
|
2012-12-07 14:26:37 +00:00
|
|
|
static int wm8731_i2c_probe(struct i2c_client *i2c,
|
|
|
|
const struct i2c_device_id *id)
|
2009-02-16 19:35:43 +00:00
|
|
|
{
|
2009-02-16 20:49:16 +00:00
|
|
|
struct wm8731_priv *wm8731;
|
2010-03-17 20:15:21 +00:00
|
|
|
int ret;
|
2009-02-16 19:35:43 +00:00
|
|
|
|
2012-05-12 19:08:43 +00:00
|
|
|
wm8731 = devm_kzalloc(&i2c->dev, sizeof(struct wm8731_priv),
|
|
|
|
GFP_KERNEL);
|
2009-02-16 20:49:16 +00:00
|
|
|
if (wm8731 == NULL)
|
|
|
|
return -ENOMEM;
|
|
|
|
|
2015-03-12 02:17:11 +00:00
|
|
|
wm8731->mclk = devm_clk_get(&i2c->dev, "mclk");
|
|
|
|
if (IS_ERR(wm8731->mclk)) {
|
|
|
|
ret = PTR_ERR(wm8731->mclk);
|
|
|
|
if (ret == -ENOENT) {
|
|
|
|
wm8731->mclk = NULL;
|
|
|
|
dev_warn(&i2c->dev, "Assuming static MCLK\n");
|
|
|
|
} else {
|
|
|
|
dev_err(&i2c->dev, "Failed to get MCLK: %d\n",
|
|
|
|
ret);
|
|
|
|
return ret;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2015-01-19 07:23:43 +00:00
|
|
|
mutex_init(&wm8731->lock);
|
|
|
|
|
2012-05-12 19:08:43 +00:00
|
|
|
wm8731->regmap = devm_regmap_init_i2c(i2c, &wm8731_regmap);
|
2011-11-21 12:10:03 +00:00
|
|
|
if (IS_ERR(wm8731->regmap)) {
|
|
|
|
ret = PTR_ERR(wm8731->regmap);
|
|
|
|
dev_err(&i2c->dev, "Failed to allocate register map: %d\n",
|
|
|
|
ret);
|
2012-05-12 19:08:43 +00:00
|
|
|
return ret;
|
2011-11-21 12:10:03 +00:00
|
|
|
}
|
|
|
|
|
2009-02-16 20:49:16 +00:00
|
|
|
i2c_set_clientdata(i2c, wm8731);
|
2009-02-16 19:35:43 +00:00
|
|
|
|
2011-11-21 12:10:03 +00:00
|
|
|
ret = snd_soc_register_codec(&i2c->dev,
|
2010-03-17 20:15:21 +00:00
|
|
|
&soc_codec_dev_wm8731, &wm8731_dai, 1);
|
2011-11-21 12:10:03 +00:00
|
|
|
if (ret != 0) {
|
|
|
|
dev_err(&i2c->dev, "Failed to register CODEC: %d\n", ret);
|
2012-05-12 19:08:43 +00:00
|
|
|
return ret;
|
2011-11-21 12:10:03 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
return 0;
|
2009-02-16 19:35:43 +00:00
|
|
|
}
|
|
|
|
|
2012-12-07 14:26:37 +00:00
|
|
|
static int wm8731_i2c_remove(struct i2c_client *client)
|
2009-02-16 19:35:43 +00:00
|
|
|
{
|
2010-03-17 20:15:21 +00:00
|
|
|
snd_soc_unregister_codec(&client->dev);
|
2009-02-16 19:35:43 +00:00
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
static const struct i2c_device_id wm8731_i2c_id[] = {
|
|
|
|
{ "wm8731", 0 },
|
|
|
|
{ }
|
|
|
|
};
|
|
|
|
MODULE_DEVICE_TABLE(i2c, wm8731_i2c_id);
|
|
|
|
|
|
|
|
static struct i2c_driver wm8731_i2c_driver = {
|
|
|
|
.driver = {
|
2011-03-27 13:35:15 +00:00
|
|
|
.name = "wm8731",
|
2009-02-16 19:35:43 +00:00
|
|
|
.owner = THIS_MODULE,
|
2011-07-26 20:00:13 +00:00
|
|
|
.of_match_table = wm8731_of_match,
|
2009-02-16 19:35:43 +00:00
|
|
|
},
|
|
|
|
.probe = wm8731_i2c_probe,
|
2012-12-07 14:26:37 +00:00
|
|
|
.remove = wm8731_i2c_remove,
|
2009-02-16 19:35:43 +00:00
|
|
|
.id_table = wm8731_i2c_id,
|
|
|
|
};
|
|
|
|
#endif
|
|
|
|
|
2008-12-10 06:47:22 +00:00
|
|
|
static int __init wm8731_modinit(void)
|
2008-12-08 19:17:58 +00:00
|
|
|
{
|
2010-03-17 20:15:21 +00:00
|
|
|
int ret = 0;
|
2013-11-21 14:38:43 +00:00
|
|
|
#if IS_ENABLED(CONFIG_I2C)
|
2009-02-16 20:49:16 +00:00
|
|
|
ret = i2c_add_driver(&wm8731_i2c_driver);
|
|
|
|
if (ret != 0) {
|
|
|
|
printk(KERN_ERR "Failed to register WM8731 I2C driver: %d\n",
|
|
|
|
ret);
|
|
|
|
}
|
|
|
|
#endif
|
|
|
|
#if defined(CONFIG_SPI_MASTER)
|
|
|
|
ret = spi_register_driver(&wm8731_spi_driver);
|
|
|
|
if (ret != 0) {
|
|
|
|
printk(KERN_ERR "Failed to register WM8731 SPI driver: %d\n",
|
|
|
|
ret);
|
|
|
|
}
|
|
|
|
#endif
|
2010-03-17 20:15:21 +00:00
|
|
|
return ret;
|
2008-12-08 19:17:58 +00:00
|
|
|
}
|
|
|
|
module_init(wm8731_modinit);
|
|
|
|
|
|
|
|
static void __exit wm8731_exit(void)
|
|
|
|
{
|
2013-11-21 14:38:43 +00:00
|
|
|
#if IS_ENABLED(CONFIG_I2C)
|
2009-02-16 20:49:16 +00:00
|
|
|
i2c_del_driver(&wm8731_i2c_driver);
|
|
|
|
#endif
|
|
|
|
#if defined(CONFIG_SPI_MASTER)
|
|
|
|
spi_unregister_driver(&wm8731_spi_driver);
|
|
|
|
#endif
|
2008-12-08 19:17:58 +00:00
|
|
|
}
|
|
|
|
module_exit(wm8731_exit);
|
|
|
|
|
2006-10-06 16:36:07 +00:00
|
|
|
MODULE_DESCRIPTION("ASoC WM8731 driver");
|
|
|
|
MODULE_AUTHOR("Richard Purdie");
|
|
|
|
MODULE_LICENSE("GPL");
|