/*
 * LM4857 AMP driver
 *
 * Copyright 2007 Wolfson Microelectronics PLC.
 * Author: Graeme Gregory
 *         graeme.gregory@wolfsonmicro.com
 * Copyright 2011 Lars-Peter Clausen <lars@metafoo.de>
 *
 *  This program is free software; you can redistribute  it and/or modify it
 *  under  the terms of  the GNU General  Public License as published by the
 *  Free Software Foundation;  either version 2 of the  License, or (at your
 *  option) any later version.
 *
 */

#include <linux/init.h>
#include <linux/module.h>
#include <linux/i2c.h>
#include <linux/regmap.h>
#include <linux/slab.h>

#include <sound/core.h>
#include <sound/soc.h>
#include <sound/tlv.h>

static const struct reg_default lm4857_default_regs[] = {
	{ 0x0, 0x00 },
	{ 0x1, 0x00 },
	{ 0x2, 0x00 },
	{ 0x3, 0x00 },
};

/* The register offsets in the cache array */
#define LM4857_MVOL 0
#define LM4857_LVOL 1
#define LM4857_RVOL 2
#define LM4857_CTRL 3

/* the shifts required to set these bits */
#define LM4857_3D 5
#define LM4857_WAKEUP 5
#define LM4857_EPGAIN 4

static const unsigned int lm4857_mode_values[] = {
	0,
	6,
	7,
	8,
	9,
};

static const char * const lm4857_mode_texts[] = {
	"Off",
	"Earpiece",
	"Loudspeaker",
	"Loudspeaker + Headphone",
	"Headphone",
};

static SOC_VALUE_ENUM_SINGLE_AUTODISABLE_DECL(lm4857_mode_enum,
	LM4857_CTRL, 0, 0xf, lm4857_mode_texts, lm4857_mode_values);

static const struct snd_kcontrol_new lm4857_mode_ctrl =
	SOC_DAPM_ENUM("Mode", lm4857_mode_enum);

static const struct snd_soc_dapm_widget lm4857_dapm_widgets[] = {
	SND_SOC_DAPM_INPUT("IN"),

	SND_SOC_DAPM_DEMUX("Mode", SND_SOC_NOPM, 0, 0, &lm4857_mode_ctrl),

	SND_SOC_DAPM_OUTPUT("LS"),
	SND_SOC_DAPM_OUTPUT("HP"),
	SND_SOC_DAPM_OUTPUT("EP"),
};

static const DECLARE_TLV_DB_SCALE(stereo_tlv, -4050, 150, 0);
static const DECLARE_TLV_DB_SCALE(mono_tlv, -3450, 150, 0);

static const struct snd_kcontrol_new lm4857_controls[] = {
	SOC_SINGLE_TLV("Left Playback Volume", LM4857_LVOL, 0, 31, 0,
		stereo_tlv),
	SOC_SINGLE_TLV("Right Playback Volume", LM4857_RVOL, 0, 31, 0,
		stereo_tlv),
	SOC_SINGLE_TLV("Mono Playback Volume", LM4857_MVOL, 0, 31, 0,
		mono_tlv),
	SOC_SINGLE("Spk 3D Playback Switch", LM4857_LVOL, LM4857_3D, 1, 0),
	SOC_SINGLE("HP 3D Playback Switch", LM4857_RVOL, LM4857_3D, 1, 0),
	SOC_SINGLE("Fast Wakeup Playback Switch", LM4857_CTRL,
		LM4857_WAKEUP, 1, 0),
	SOC_SINGLE("Earpiece 6dB Playback Switch", LM4857_CTRL,
		LM4857_EPGAIN, 1, 0),
};

static const struct snd_soc_dapm_route lm4857_routes[] = {
	{ "Mode", NULL, "IN" },
	{ "LS", "Loudspeaker", "Mode" },
	{ "LS", "Loudspeaker + Headphone", "Mode" },
	{ "HP", "Headphone", "Mode" },
	{ "HP", "Loudspeaker + Headphone", "Mode" },
	{ "EP", "Earpiece", "Mode" },
};

static struct snd_soc_component_driver lm4857_component_driver = {
	.controls = lm4857_controls,
	.num_controls = ARRAY_SIZE(lm4857_controls),
	.dapm_widgets = lm4857_dapm_widgets,
	.num_dapm_widgets = ARRAY_SIZE(lm4857_dapm_widgets),
	.dapm_routes = lm4857_routes,
	.num_dapm_routes = ARRAY_SIZE(lm4857_routes),
};

static const struct regmap_config lm4857_regmap_config = {
	.val_bits = 6,
	.reg_bits = 2,

	.max_register = LM4857_CTRL,

	.cache_type = REGCACHE_FLAT,
	.reg_defaults = lm4857_default_regs,
	.num_reg_defaults = ARRAY_SIZE(lm4857_default_regs),
};

static int lm4857_i2c_probe(struct i2c_client *i2c,
			    const struct i2c_device_id *id)
{
	struct regmap *regmap;

	regmap = devm_regmap_init_i2c(i2c, &lm4857_regmap_config);
	if (IS_ERR(regmap))
		return PTR_ERR(regmap);

	return devm_snd_soc_register_component(&i2c->dev,
		&lm4857_component_driver, NULL, 0);
}

static const struct i2c_device_id lm4857_i2c_id[] = {
	{ "lm4857", 0 },
	{ }
};
MODULE_DEVICE_TABLE(i2c, lm4857_i2c_id);

static struct i2c_driver lm4857_i2c_driver = {
	.driver = {
		.name = "lm4857",
	},
	.probe = lm4857_i2c_probe,
	.id_table = lm4857_i2c_id,
};

module_i2c_driver(lm4857_i2c_driver);

MODULE_AUTHOR("Lars-Peter Clausen <lars@metafoo.de>");
MODULE_DESCRIPTION("LM4857 amplifier driver");
MODULE_LICENSE("GPL");
><select name='context' onchange='this.form.submit();'><option value='1'>1</option><option value='2'>2</option><option value='3' selected='selected'>3</option><option value='4'>4</option><option value='5'>5</option><option value='6'>6</option><option value='7'>7</option><option value='8'>8</option><option value='9'>9</option><option value='10'>10</option><option value='15'>15</option><option value='20'>20</option><option value='25'>25</option><option value='30'>30</option><option value='35'>35</option><option value='40'>40</option></select></td></tr><tr><td class='label'>space:</td><td class='ctrl'><select name='ignorews' onchange='this.form.submit();'><option value='0' selected='selected'>include</option><option value='1'>ignore</option></select></td></tr><tr><td class='label'>mode:</td><td class='ctrl'><select name='dt' onchange='this.form.submit();'><option value='0' selected='selected'>unified</option><option value='1'>ssdiff</option><option value='2'>stat only</option></select></td></tr><tr><td/><td class='ctrl'><noscript><input type='submit' value='reload'/></noscript></td></tr></table></form></div><table summary='commit info' class='commit-info'>
<tr><th>author</th><td>Thomas Gleixner &lt;tglx@linutronix.de&gt;</td><td class='right'>2017-01-31 09:37:34 +0100</td></tr>
<tr><th>committer</th><td>Thomas Gleixner &lt;tglx@linutronix.de&gt;</td><td class='right'>2017-01-31 21:47:58 +0100</td></tr>
<tr><th>commit</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/include/dt-bindings/pinctrl/samsung.h?h=nds-private-remove&amp;id=0becc0ae5b42828785b589f686725ff5bc3b9b25'>0becc0ae5b42828785b589f686725ff5bc3b9b25</a> (<a href='/cgit.cgi/linux/net-next.git/patch/include/dt-bindings/pinctrl/samsung.h?id=0becc0ae5b42828785b589f686725ff5bc3b9b25'>patch</a>)</td></tr>
<tr><th>tree</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/tree/?h=nds-private-remove&amp;id=0becc0ae5b42828785b589f686725ff5bc3b9b25'>be6d0e1f37c38ed0a7dd5da2d4b1e93f0fb43101</a> /<a href='/cgit.cgi/linux/net-next.git/tree/include/dt-bindings/pinctrl/samsung.h?h=nds-private-remove&amp;id=0becc0ae5b42828785b589f686725ff5bc3b9b25'>include/dt-bindings/pinctrl/samsung.h</a></td></tr>
<tr><th>parent</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/include/dt-bindings/pinctrl/samsung.h?h=nds-private-remove&amp;id=24c2503255d35c269b67162c397a1a1c1e02f6ce'>24c2503255d35c269b67162c397a1a1c1e02f6ce</a> (<a href='/cgit.cgi/linux/net-next.git/diff/include/dt-bindings/pinctrl/samsung.h?h=nds-private-remove&amp;id=0becc0ae5b42828785b589f686725ff5bc3b9b25&amp;id2=24c2503255d35c269b67162c397a1a1c1e02f6ce'>diff</a>)</td></tr></table>
<div class='commit-subject'>x86/mce: Make timer handling more robust</div><div class='commit-msg'>Erik reported that on a preproduction hardware a CMCI storm triggers the
BUG_ON in add_timer_on(). The reason is that the per CPU MCE timer is
started by the CMCI logic before the MCE CPU hotplug callback starts the
timer with add_timer_on(). So the timer is already queued which triggers
the BUG.

Using add_timer_on() is pretty pointless in this code because the timer is
strictlty per CPU, initialized as pinned and all operations which arm the
timer happen on the CPU to which the timer belongs.

Simplify the whole machinery by using mod_timer() instead of add_timer_on()
which avoids the problem because mod_timer() can handle already queued
timers. Use __start_timer() everywhere so the earliest armed expiry time is
preserved.

Reported-by: Erik Veijola &lt;erik.veijola@intel.com&gt;
Tested-by: Borislav Petkov &lt;bp@alien8.de&gt;
Signed-off-by: Thomas Gleixner &lt;tglx@linutronix.de&gt;
Reviewed-by: Borislav Petkov &lt;bp@alien8.de&gt;
Cc: Tony Luck &lt;tony.luck@intel.com&gt;
Link: http://lkml.kernel.org/r/alpine.DEB.2.20.1701310936080.3457@nanos
Signed-off-by: Thomas Gleixner &lt;tglx@linutronix.de&gt;

</div><div class='diffstat-header'><a href='/cgit.cgi/linux/net-next.git/diff/?h=nds-private-remove&amp;id=0becc0ae5b42828785b589f686725ff5bc3b9b25'>Diffstat</a> (limited to 'include/dt-bindings/pinctrl/samsung.h')</div><table summary='diffstat' class='diffstat'>