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linux_kernel/drivers/mfd/wm97xx-core.c
Thomas Gleixner 2874c5fd28 treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 
Based on 1 normalized pattern(s):

  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

extracted by the scancode license scanner the SPDX license identifier

  GPL-2.0-or-later

has been chosen to replace the boilerplate/reference in 3029 file(s).

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Allison Randal <allison@lohutok.net>
Cc: linux-spdx@vger.kernel.org
Link: https://lkml.kernel.org/r/20190527070032.746973796@linutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-05-30 11:26:32 -07:00

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// SPDX-License-Identifier: GPL-2.0-or-later
/*
* Wolfson WM97xx -- Core device
*
* Copyright (C) 2017 Robert Jarzmik
*
* Features:
* - an AC97 audio codec
* - a touchscreen driver
* - a GPIO block
*/
#include <linux/device.h>
#include <linux/mfd/core.h>
#include <linux/mfd/wm97xx.h>
#include <linux/module.h>
#include <linux/regmap.h>
#include <linux/slab.h>
#include <linux/wm97xx.h>
#include <sound/ac97/codec.h>
#include <sound/ac97/compat.h>
#define WM9705_VENDOR_ID 0x574d4c05
#define WM9712_VENDOR_ID 0x574d4c12
#define WM9713_VENDOR_ID 0x574d4c13
#define WM97xx_VENDOR_ID_MASK 0xffffffff
struct wm97xx_priv {
struct regmap *regmap;
struct snd_ac97 *ac97;
struct device *dev;
struct wm97xx_platform_data codec_pdata;
};
static bool wm97xx_readable_reg(struct device *dev, unsigned int reg)
{
switch (reg) {
case AC97_RESET ... AC97_PCM_SURR_DAC_RATE:
case AC97_PCM_LR_ADC_RATE:
case AC97_CENTER_LFE_MASTER:
case AC97_SPDIF ... AC97_LINE1_LEVEL:
case AC97_GPIO_CFG ... 0x5c:
case AC97_CODEC_CLASS_REV ... AC97_PCI_SID:
case 0x74 ... AC97_VENDOR_ID2:
return true;
default:
return false;
}
}
static bool wm97xx_writeable_reg(struct device *dev, unsigned int reg)
{
switch (reg) {
case AC97_VENDOR_ID1:
case AC97_VENDOR_ID2:
return false;
default:
return wm97xx_readable_reg(dev, reg);
}
}
static const struct reg_default wm9705_reg_defaults[] = {
{ 0x02, 0x8000 },
{ 0x04, 0x8000 },
{ 0x06, 0x8000 },
{ 0x0a, 0x8000 },
{ 0x0c, 0x8008 },
{ 0x0e, 0x8008 },
{ 0x10, 0x8808 },
{ 0x12, 0x8808 },
{ 0x14, 0x8808 },
{ 0x16, 0x8808 },
{ 0x18, 0x8808 },
{ 0x1a, 0x0000 },
{ 0x1c, 0x8000 },
{ 0x20, 0x0000 },
{ 0x22, 0x0000 },
{ 0x26, 0x000f },
{ 0x28, 0x0605 },
{ 0x2a, 0x0000 },
{ 0x2c, 0xbb80 },
{ 0x32, 0xbb80 },
{ 0x34, 0x2000 },
{ 0x5a, 0x0000 },
{ 0x5c, 0x0000 },
{ 0x72, 0x0808 },
{ 0x74, 0x0000 },
{ 0x76, 0x0006 },
{ 0x78, 0x0000 },
{ 0x7a, 0x0000 },
};
static const struct regmap_config wm9705_regmap_config = {
.reg_bits = 16,
.reg_stride = 2,
.val_bits = 16,
.max_register = 0x7e,
.cache_type = REGCACHE_RBTREE,
.reg_defaults = wm9705_reg_defaults,
.num_reg_defaults = ARRAY_SIZE(wm9705_reg_defaults),
.volatile_reg = regmap_ac97_default_volatile,
.readable_reg = wm97xx_readable_reg,
.writeable_reg = wm97xx_writeable_reg,
};
static struct mfd_cell wm9705_cells[] = {
{ .name = "wm9705-codec", },
{ .name = "wm97xx-ts", },
};
static bool wm9712_volatile_reg(struct device *dev, unsigned int reg)
{
switch (reg) {
case AC97_REC_GAIN:
return true;
default:
return regmap_ac97_default_volatile(dev, reg);
}
}
static const struct reg_default wm9712_reg_defaults[] = {
{ 0x02, 0x8000 },
{ 0x04, 0x8000 },
{ 0x06, 0x8000 },
{ 0x08, 0x0f0f },
{ 0x0a, 0xaaa0 },
{ 0x0c, 0xc008 },
{ 0x0e, 0x6808 },
{ 0x10, 0xe808 },
{ 0x12, 0xaaa0 },
{ 0x14, 0xad00 },
{ 0x16, 0x8000 },
{ 0x18, 0xe808 },
{ 0x1a, 0x3000 },
{ 0x1c, 0x8000 },
{ 0x20, 0x0000 },
{ 0x22, 0x0000 },
{ 0x26, 0x000f },
{ 0x28, 0x0605 },
{ 0x2a, 0x0410 },
{ 0x2c, 0xbb80 },
{ 0x2e, 0xbb80 },
{ 0x32, 0xbb80 },
{ 0x34, 0x2000 },
{ 0x4c, 0xf83e },
{ 0x4e, 0xffff },
{ 0x50, 0x0000 },
{ 0x52, 0x0000 },
{ 0x56, 0xf83e },
{ 0x58, 0x0008 },
{ 0x5c, 0x0000 },
{ 0x60, 0xb032 },
{ 0x62, 0x3e00 },
{ 0x64, 0x0000 },
{ 0x76, 0x0006 },
{ 0x78, 0x0001 },
{ 0x7a, 0x0000 },
};
static const struct regmap_config wm9712_regmap_config = {
.reg_bits = 16,
.reg_stride = 2,
.val_bits = 16,
.max_register = 0x7e,
.cache_type = REGCACHE_RBTREE,
.reg_defaults = wm9712_reg_defaults,
.num_reg_defaults = ARRAY_SIZE(wm9712_reg_defaults),
.volatile_reg = wm9712_volatile_reg,
.readable_reg = wm97xx_readable_reg,
.writeable_reg = wm97xx_writeable_reg,
};
static struct mfd_cell wm9712_cells[] = {
{ .name = "wm9712-codec", },
{ .name = "wm97xx-ts", },
};
static const struct reg_default wm9713_reg_defaults[] = {
{ 0x02, 0x8080 }, /* Speaker Output Volume */
{ 0x04, 0x8080 }, /* Headphone Output Volume */
{ 0x06, 0x8080 }, /* Out3/OUT4 Volume */
{ 0x08, 0xc880 }, /* Mono Volume */
{ 0x0a, 0xe808 }, /* LINEIN Volume */
{ 0x0c, 0xe808 }, /* DAC PGA Volume */
{ 0x0e, 0x0808 }, /* MIC PGA Volume */
{ 0x10, 0x00da }, /* MIC Routing Control */
{ 0x12, 0x8000 }, /* Record PGA Volume */
{ 0x14, 0xd600 }, /* Record Routing */
{ 0x16, 0xaaa0 }, /* PCBEEP Volume */
{ 0x18, 0xaaa0 }, /* VxDAC Volume */
{ 0x1a, 0xaaa0 }, /* AUXDAC Volume */
{ 0x1c, 0x0000 }, /* Output PGA Mux */
{ 0x1e, 0x0000 }, /* DAC 3D control */
{ 0x20, 0x0f0f }, /* DAC Tone Control*/
{ 0x22, 0x0040 }, /* MIC Input Select & Bias */
{ 0x24, 0x0000 }, /* Output Volume Mapping & Jack */
{ 0x26, 0x7f00 }, /* Powerdown Ctrl/Stat*/
{ 0x28, 0x0405 }, /* Extended Audio ID */
{ 0x2a, 0x0410 }, /* Extended Audio Start/Ctrl */
{ 0x2c, 0xbb80 }, /* Audio DACs Sample Rate */
{ 0x2e, 0xbb80 }, /* AUXDAC Sample Rate */
{ 0x32, 0xbb80 }, /* Audio ADCs Sample Rate */
{ 0x36, 0x4523 }, /* PCM codec control */
{ 0x3a, 0x2000 }, /* SPDIF control */
{ 0x3c, 0xfdff }, /* Powerdown 1 */
{ 0x3e, 0xffff }, /* Powerdown 2 */
{ 0x40, 0x0000 }, /* General Purpose */
{ 0x42, 0x0000 }, /* Fast Power-Up Control */
{ 0x44, 0x0080 }, /* MCLK/PLL Control */
{ 0x46, 0x0000 }, /* MCLK/PLL Control */
{ 0x4c, 0xfffe }, /* GPIO Pin Configuration */
{ 0x4e, 0xffff }, /* GPIO Pin Polarity / Type */
{ 0x50, 0x0000 }, /* GPIO Pin Sticky */
{ 0x52, 0x0000 }, /* GPIO Pin Wake-Up */
/* GPIO Pin Status */
{ 0x56, 0xfffe }, /* GPIO Pin Sharing */
{ 0x58, 0x4000 }, /* GPIO PullUp/PullDown */
{ 0x5a, 0x0000 }, /* Additional Functions 1 */
{ 0x5c, 0x0000 }, /* Additional Functions 2 */
{ 0x60, 0xb032 }, /* ALC Control */
{ 0x62, 0x3e00 }, /* ALC / Noise Gate Control */
{ 0x64, 0x0000 }, /* AUXDAC input control */
{ 0x74, 0x0000 }, /* Digitiser Reg 1 */
{ 0x76, 0x0006 }, /* Digitiser Reg 2 */
{ 0x78, 0x0001 }, /* Digitiser Reg 3 */
{ 0x7a, 0x0000 }, /* Digitiser Read Back */
};
static const struct regmap_config wm9713_regmap_config = {
.reg_bits = 16,
.reg_stride = 2,
.val_bits = 16,
.max_register = 0x7e,
.cache_type = REGCACHE_RBTREE,
.reg_defaults = wm9713_reg_defaults,
.num_reg_defaults = ARRAY_SIZE(wm9713_reg_defaults),
.volatile_reg = regmap_ac97_default_volatile,
.readable_reg = wm97xx_readable_reg,
.writeable_reg = wm97xx_writeable_reg,
};
static struct mfd_cell wm9713_cells[] = {
{ .name = "wm9713-codec", },
{ .name = "wm97xx-ts", },
};
static int wm97xx_ac97_probe(struct ac97_codec_device *adev)
{
struct wm97xx_priv *wm97xx;
const struct regmap_config *config;
struct wm97xx_platform_data *codec_pdata;
struct mfd_cell *cells;
int ret = -ENODEV, nb_cells, i;
struct wm97xx_pdata *pdata = snd_ac97_codec_get_platdata(adev);
wm97xx = devm_kzalloc(ac97_codec_dev2dev(adev),
sizeof(*wm97xx), GFP_KERNEL);
if (!wm97xx)
return -ENOMEM;
wm97xx->dev = ac97_codec_dev2dev(adev);
wm97xx->ac97 = snd_ac97_compat_alloc(adev);
if (IS_ERR(wm97xx->ac97))
return PTR_ERR(wm97xx->ac97);
ac97_set_drvdata(adev, wm97xx);
dev_info(wm97xx->dev, "wm97xx core found, id=0x%x\n",
adev->vendor_id);
codec_pdata = &wm97xx->codec_pdata;
codec_pdata->ac97 = wm97xx->ac97;
codec_pdata->batt_pdata = pdata ? pdata->batt_pdata : NULL;
switch (adev->vendor_id) {
case WM9705_VENDOR_ID:
config = &wm9705_regmap_config;
cells = wm9705_cells;
nb_cells = ARRAY_SIZE(wm9705_cells);
break;
case WM9712_VENDOR_ID:
config = &wm9712_regmap_config;
cells = wm9712_cells;
nb_cells = ARRAY_SIZE(wm9712_cells);
break;
case WM9713_VENDOR_ID:
config = &wm9713_regmap_config;
cells = wm9713_cells;
nb_cells = ARRAY_SIZE(wm9713_cells);
break;
default:
goto err_free_compat;
}
for (i = 0; i < nb_cells; i++) {
cells[i].platform_data = codec_pdata;
cells[i].pdata_size = sizeof(*codec_pdata);
}
codec_pdata->regmap = devm_regmap_init_ac97(wm97xx->ac97, config);
if (IS_ERR(codec_pdata->regmap)) {
ret = PTR_ERR(codec_pdata->regmap);
goto err_free_compat;
}
ret = devm_mfd_add_devices(wm97xx->dev, PLATFORM_DEVID_NONE,
cells, nb_cells, NULL, 0, NULL);
if (ret)
goto err_free_compat;
return ret;
err_free_compat:
snd_ac97_compat_release(wm97xx->ac97);
return ret;
}
static int wm97xx_ac97_remove(struct ac97_codec_device *adev)
{
struct wm97xx_priv *wm97xx = ac97_get_drvdata(adev);
snd_ac97_compat_release(wm97xx->ac97);
return 0;
}
static const struct ac97_id wm97xx_ac97_ids[] = {
{ .id = WM9705_VENDOR_ID, .mask = WM97xx_VENDOR_ID_MASK },
{ .id = WM9712_VENDOR_ID, .mask = WM97xx_VENDOR_ID_MASK },
{ .id = WM9713_VENDOR_ID, .mask = WM97xx_VENDOR_ID_MASK },
{ }
};
static struct ac97_codec_driver wm97xx_ac97_driver = {
.driver = {
.name = "wm97xx-core",
},
.probe = wm97xx_ac97_probe,
.remove = wm97xx_ac97_remove,
.id_table = wm97xx_ac97_ids,
};
static int __init wm97xx_module_init(void)
{
return snd_ac97_codec_driver_register(&wm97xx_ac97_driver);
}
module_init(wm97xx_module_init);
static void __exit wm97xx_module_exit(void)
{
snd_ac97_codec_driver_unregister(&wm97xx_ac97_driver);
}
module_exit(wm97xx_module_exit);
MODULE_DESCRIPTION("WM9712, WM9713 core driver");
MODULE_AUTHOR("Robert Jarzmik <robert.jarzmik@free.fr>");
MODULE_LICENSE("GPL");
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