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Commit fec4fe26 authored by Mark Brown's avatar Mark Brown
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Merge branch 'regmap-mfd' into regmap-next

parents ae130d22 50eeef5d
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Showing with 487 additions and 513 deletions
drivers/mfd/Kconfig
View file @ fec4fe26
......@@ -404,6 +404,7 @@ config MFD_WM831X_I2C
bool "Support Wolfson Microelectronics WM831x/2x PMICs with I2C"
select MFD_CORE
select MFD_WM831X
select REGMAP_I2C
depends on I2C=y && GENERIC_HARDIRQS
help
Support for the Wolfson Microelecronics WM831x and WM832x PMICs
......@@ -415,6 +416,7 @@ config MFD_WM831X_SPI
bool "Support Wolfson Microelectronics WM831x/2x PMICs with SPI"
select MFD_CORE
select MFD_WM831X
select REGMAP_SPI
depends on SPI_MASTER && GENERIC_HARDIRQS
help
Support for the Wolfson Microelecronics WM831x and WM832x PMICs
......@@ -488,6 +490,7 @@ config MFD_WM8350_I2C
config MFD_WM8994
bool "Support Wolfson Microelectronics WM8994"
select MFD_CORE
select REGMAP_I2C
depends on I2C=y && GENERIC_HARDIRQS
help
The WM8994 is a highly integrated hi-fi CODEC designed for
......
drivers/mfd/wm831x-core.c
View file @ fec4fe26
This diff is collapsed.
drivers/mfd/wm831x-i2c.c
View file @ fec4fe26
......@@ -18,67 +18,17 @@
#include <linux/delay.h>
#include <linux/mfd/core.h>
#include <linux/slab.h>
#include <linux/err.h>
#include <linux/regmap.h>
#include <linux/mfd/wm831x/core.h>
#include <linux/mfd/wm831x/pdata.h>
static int wm831x_i2c_read_device(struct wm831x *wm831x, unsigned short reg,
int bytes, void *dest)
{
struct i2c_client *i2c = wm831x->control_data;
int ret;
u16 r = cpu_to_be16(reg);
ret = i2c_master_send(i2c, (unsigned char *)&r, 2);
if (ret < 0)
return ret;
if (ret != 2)
return -EIO;
ret = i2c_master_recv(i2c, dest, bytes);
if (ret < 0)
return ret;
if (ret != bytes)
return -EIO;
return 0;
}
/* Currently we allocate the write buffer on the stack; this is OK for
* small writes - if we need to do large writes this will need to be
* revised.
*/
static int wm831x_i2c_write_device(struct wm831x *wm831x, unsigned short reg,
int bytes, void *src)
{
struct i2c_client *i2c = wm831x->control_data;
struct i2c_msg xfer[2];
int ret;
reg = cpu_to_be16(reg);
xfer[0].addr = i2c->addr;
xfer[0].flags = 0;
xfer[0].len = 2;
xfer[0].buf = (char *)&reg;
xfer[1].addr = i2c->addr;
xfer[1].flags = I2C_M_NOSTART;
xfer[1].len = bytes;
xfer[1].buf = (char *)src;
ret = i2c_transfer(i2c->adapter, xfer, 2);
if (ret < 0)
return ret;
if (ret != 2)
return -EIO;
return 0;
}
static int wm831x_i2c_probe(struct i2c_client *i2c,
const struct i2c_device_id *id)
{
struct wm831x *wm831x;
int ret;
wm831x = kzalloc(sizeof(struct wm831x), GFP_KERNEL);
if (wm831x == NULL)
......@@ -86,9 +36,15 @@ static int wm831x_i2c_probe(struct i2c_client *i2c,
i2c_set_clientdata(i2c, wm831x);
wm831x->dev = &i2c->dev;
wm831x->control_data = i2c;
wm831x->read_dev = wm831x_i2c_read_device;
wm831x->write_dev = wm831x_i2c_write_device;
wm831x->regmap = regmap_init_i2c(i2c, &wm831x_regmap_config);
if (IS_ERR(wm831x->regmap)) {
ret = PTR_ERR(wm831x->regmap);
dev_err(wm831x->dev, "Failed to allocate register map: %d\n",
ret);
kfree(wm831x);
return ret;
}
return wm831x_device_init(wm831x, id->driver_data, i2c->irq);
}
......
drivers/mfd/wm831x-spi.c
View file @ fec4fe26
......@@ -16,78 +16,19 @@
#include <linux/module.h>
#include <linux/pm.h>
#include <linux/spi/spi.h>
#include <linux/regmap.h>
#include <linux/err.h>
#include <linux/mfd/wm831x/core.h>
static int wm831x_spi_read_device(struct wm831x *wm831x, unsigned short reg,
int bytes, void *dest)
{
u16 tx_val;
u16 *d = dest;
int r, ret;
/* Go register at a time */
for (r = reg; r < reg + (bytes / 2); r++) {
tx_val = r | 0x8000;
ret = spi_write_then_read(wm831x->control_data,
(u8 *)&tx_val, 2, (u8 *)d, 2);
if (ret != 0)
return ret;
*d = be16_to_cpu(*d);
d++;
}
return 0;
}
static int wm831x_spi_write_device(struct wm831x *wm831x, unsigned short reg,
int bytes, void *src)
{
struct spi_device *spi = wm831x->control_data;
u16 *s = src;
u16 data[2];
int ret, r;
/* Go register at a time */
for (r = reg; r < reg + (bytes / 2); r++) {
data[0] = r;
data[1] = *s++;
ret = spi_write(spi, (char *)&data, sizeof(data));
if (ret != 0)
return ret;
}
return 0;
}
static int __devinit wm831x_spi_probe(struct spi_device *spi)
{
const struct spi_device_id *id = spi_get_device_id(spi);
struct wm831x *wm831x;
enum wm831x_parent type;
int ret;
/* Currently SPI support for ID tables is unmerged, we're faking it */
if (strcmp(spi->modalias, "wm8310") == 0)
type = WM8310;
else if (strcmp(spi->modalias, "wm8311") == 0)
type = WM8311;
else if (strcmp(spi->modalias, "wm8312") == 0)
type = WM8312;
else if (strcmp(spi->modalias, "wm8320") == 0)
type = WM8320;
else if (strcmp(spi->modalias, "wm8321") == 0)
type = WM8321;
else if (strcmp(spi->modalias, "wm8325") == 0)
type = WM8325;
else if (strcmp(spi->modalias, "wm8326") == 0)
type = WM8326;
else {
dev_err(&spi->dev, "Unknown device type\n");
return -EINVAL;
}
type = (enum wm831x_parent)id->driver_data;
wm831x = kzalloc(sizeof(struct wm831x), GFP_KERNEL);
if (wm831x == NULL)
......@@ -98,9 +39,15 @@ static int __devinit wm831x_spi_probe(struct spi_device *spi)
dev_set_drvdata(&spi->dev, wm831x);
wm831x->dev = &spi->dev;
wm831x->control_data = spi;
wm831x->read_dev = wm831x_spi_read_device;
wm831x->write_dev = wm831x_spi_write_device;
wm831x->regmap = regmap_init_spi(spi, &wm831x_regmap_config);
if (IS_ERR(wm831x->regmap)) {
ret = PTR_ERR(wm831x->regmap);
dev_err(wm831x->dev, "Failed to allocate register map: %d\n",
ret);
kfree(wm831x);
return ret;
}
return wm831x_device_init(wm831x, type, spi->irq);
}
......@@ -126,79 +73,26 @@ static const struct dev_pm_ops wm831x_spi_pm = {
.suspend = wm831x_spi_suspend,
};
static struct spi_driver wm8310_spi_driver = {
.driver = {
.name = "wm8310",
.bus = &spi_bus_type,
.owner = THIS_MODULE,
.pm = &wm831x_spi_pm,
},
.probe = wm831x_spi_probe,
.remove = __devexit_p(wm831x_spi_remove),
};
static struct spi_driver wm8311_spi_driver = {
.driver = {
.name = "wm8311",
.bus = &spi_bus_type,
.owner = THIS_MODULE,
.pm = &wm831x_spi_pm,
},
.probe = wm831x_spi_probe,
.remove = __devexit_p(wm831x_spi_remove),
};
static struct spi_driver wm8312_spi_driver = {
.driver = {
.name = "wm8312",
.bus = &spi_bus_type,
.owner = THIS_MODULE,
.pm = &wm831x_spi_pm,
},
.probe = wm831x_spi_probe,
.remove = __devexit_p(wm831x_spi_remove),
};
static struct spi_driver wm8320_spi_driver = {
.driver = {
.name = "wm8320",
.bus = &spi_bus_type,
.owner = THIS_MODULE,
.pm = &wm831x_spi_pm,
},
.probe = wm831x_spi_probe,
.remove = __devexit_p(wm831x_spi_remove),
};
static struct spi_driver wm8321_spi_driver = {
.driver = {
.name = "wm8321",
.bus = &spi_bus_type,
.owner = THIS_MODULE,
.pm = &wm831x_spi_pm,
},
.probe = wm831x_spi_probe,
.remove = __devexit_p(wm831x_spi_remove),
static const struct spi_device_id wm831x_spi_ids[] = {
{ "wm8310", WM8310 },
{ "wm8311", WM8311 },
{ "wm8312", WM8312 },
{ "wm8320", WM8320 },
{ "wm8321", WM8321 },
{ "wm8325", WM8325 },
{ "wm8326", WM8326 },
{ },
};
MODULE_DEVICE_TABLE(spi, wm831x_spi_id);
static struct spi_driver wm8325_spi_driver = {
static struct spi_driver wm831x_spi_driver = {
.driver = {
.name = "wm8325",
.bus = &spi_bus_type,
.owner = THIS_MODULE,
.pm = &wm831x_spi_pm,
},
.probe = wm831x_spi_probe,
.remove = __devexit_p(wm831x_spi_remove),
};
static struct spi_driver wm8326_spi_driver = {
.driver = {
.name = "wm8326",
.name = "wm831x",
.bus = &spi_bus_type,
.owner = THIS_MODULE,
.pm = &wm831x_spi_pm,
},
.id_table = wm831x_spi_ids,
.probe = wm831x_spi_probe,
.remove = __devexit_p(wm831x_spi_remove),
};
......@@ -207,33 +101,9 @@ static int __init wm831x_spi_init(void)
{
int ret;
ret = spi_register_driver(&wm8310_spi_driver);
if (ret != 0)
pr_err("Failed to register WM8310 SPI driver: %d\n", ret);
ret = spi_register_driver(&wm8311_spi_driver);
if (ret != 0)
pr_err("Failed to register WM8311 SPI driver: %d\n", ret);
ret = spi_register_driver(&wm8312_spi_driver);
if (ret != 0)
pr_err("Failed to register WM8312 SPI driver: %d\n", ret);
ret = spi_register_driver(&wm8320_spi_driver);
if (ret != 0)
pr_err("Failed to register WM8320 SPI driver: %d\n", ret);
ret = spi_register_driver(&wm8321_spi_driver);
if (ret != 0)
pr_err("Failed to register WM8321 SPI driver: %d\n", ret);
ret = spi_register_driver(&wm8325_spi_driver);
if (ret != 0)
pr_err("Failed to register WM8325 SPI driver: %d\n", ret);
ret = spi_register_driver(&wm8326_spi_driver);
ret = spi_register_driver(&wm831x_spi_driver);
if (ret != 0)
pr_err("Failed to register WM8326 SPI driver: %d\n", ret);
pr_err("Failed to register WM831x SPI driver: %d\n", ret);
return 0;
}
......@@ -241,13 +111,7 @@ subsys_initcall(wm831x_spi_init);
static void __exit wm831x_spi_exit(void)
{
spi_unregister_driver(&wm8326_spi_driver);
spi_unregister_driver(&wm8325_spi_driver);
spi_unregister_driver(&wm8321_spi_driver);
spi_unregister_driver(&wm8320_spi_driver);
spi_unregister_driver(&wm8312_spi_driver);
spi_unregister_driver(&wm8311_spi_driver);
spi_unregister_driver(&wm8310_spi_driver);
spi_unregister_driver(&wm831x_spi_driver);
}
module_exit(wm831x_spi_exit);
......
drivers/mfd/wm8400-core.c
View file @ fec4fe26
......@@ -13,11 +13,13 @@
*/
#include <linux/bug.h>
#include <linux/err.h>
#include <linux/i2c.h>
#include <linux/kernel.h>
#include <linux/mfd/core.h>
#include <linux/mfd/wm8400-private.h>
#include <linux/mfd/wm8400-audio.h>
#include <linux/regmap.h>
#include <linux/slab.h>
static struct {
......@@ -123,14 +125,9 @@ static int wm8400_read(struct wm8400 *wm8400, u8 reg, int num_regs, u16 *dest)
/* If there are any volatile reads then read back the entire block */
for (i = reg; i < reg + num_regs; i++)
if (reg_data[i].vol) {
ret = wm8400->read_dev(wm8400->io_data, reg,
num_regs, dest);
if (ret != 0)
return ret;
for (i = 0; i < num_regs; i++)
dest[i] = be16_to_cpu(dest[i]);
return 0;
ret = regmap_bulk_read(wm8400->regmap, reg, dest,
num_regs);
return ret;
}
/* Otherwise use the cache */
......@@ -149,14 +146,11 @@ static int wm8400_write(struct wm8400 *wm8400, u8 reg, int num_regs,
for (i = 0; i < num_regs; i++) {
BUG_ON(!reg_data[reg + i].writable);
wm8400->reg_cache[reg + i] = src[i];
src[i] = cpu_to_be16(src[i]);
ret = regmap_write(wm8400->regmap, reg, src[i]);
if (ret != 0)
return ret;
}
/* Do the actual I/O */
ret = wm8400->write_dev(wm8400->io_data, reg, num_regs, src);
if (ret != 0)
return -EIO;
return 0;
}
......@@ -270,14 +264,14 @@ static int wm8400_init(struct wm8400 *wm8400,
dev_set_drvdata(wm8400->dev, wm8400);
/* Check that this is actually a WM8400 */
ret = wm8400->read_dev(wm8400->io_data, WM8400_RESET_ID, 1, &reg);
ret = regmap_read(wm8400->regmap, WM8400_RESET_ID, &i);
if (ret != 0) {
dev_err(wm8400->dev, "Chip ID register read failed\n");
return -EIO;
}
if (be16_to_cpu(reg) != reg_data[WM8400_RESET_ID].default_val) {
if (i != reg_data[WM8400_RESET_ID].default_val) {
dev_err(wm8400->dev, "Device is not a WM8400, ID is %x\n",
be16_to_cpu(reg));
reg);
return -ENODEV;
}
......@@ -285,9 +279,8 @@ static int wm8400_init(struct wm8400 *wm8400,
* is a PMIC we can't reset it safely so initialise the register
* cache from the hardware.
*/
ret = wm8400->read_dev(wm8400->io_data, 0,
ARRAY_SIZE(wm8400->reg_cache),
wm8400->reg_cache);
ret = regmap_raw_read(wm8400->regmap, 0, wm8400->reg_cache,
ARRAY_SIZE(wm8400->reg_cache));
if (ret != 0) {
dev_err(wm8400->dev, "Register cache read failed\n");
return -EIO;
......@@ -337,60 +330,13 @@ static void wm8400_release(struct wm8400 *wm8400)
mfd_remove_devices(wm8400->dev);
}
#if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
static int wm8400_i2c_read(void *io_data, char reg, int count, u16 *dest)
{
struct i2c_client *i2c = io_data;
struct i2c_msg xfer[2];
int ret;
/* Write register */
xfer[0].addr = i2c->addr;
xfer[0].flags = 0;
xfer[0].len = 1;
xfer[0].buf = &reg;
/* Read data */
xfer[1].addr = i2c->addr;
xfer[1].flags = I2C_M_RD;
xfer[1].len = count * sizeof(u16);
xfer[1].buf = (u8 *)dest;
ret = i2c_transfer(i2c->adapter, xfer, 2);
if (ret == 2)
ret = 0;
else if (ret >= 0)
ret = -EIO;
return ret;
}
static int wm8400_i2c_write(void *io_data, char reg, int count, const u16 *src)
{
struct i2c_client *i2c = io_data;
u8 *msg;
int ret;
/* We add 1 byte for device register - ideally I2C would gather. */
msg = kmalloc((count * sizeof(u16)) + 1, GFP_KERNEL);
if (msg == NULL)
return -ENOMEM;
msg[0] = reg;
memcpy(&msg[1], src, count * sizeof(u16));
ret = i2c_master_send(i2c, msg, (count * sizeof(u16)) + 1);
if (ret == (count * 2) + 1)
ret = 0;
else if (ret >= 0)
ret = -EIO;
kfree(msg);
return ret;
}
static const struct regmap_config wm8400_regmap_config = {
.reg_bits = 8,
.val_bits = 16,
.max_register = WM8400_REGISTER_COUNT - 1,
};
#if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
static int wm8400_i2c_probe(struct i2c_client *i2c,
const struct i2c_device_id *id)
{
......@@ -403,18 +349,23 @@ static int wm8400_i2c_probe(struct i2c_client *i2c,
goto err;
}
wm8400->io_data = i2c;
wm8400->read_dev = wm8400_i2c_read;
wm8400->write_dev = wm8400_i2c_write;
wm8400->regmap = regmap_init_i2c(i2c, &wm8400_regmap_config);
if (IS_ERR(wm8400->regmap)) {
ret = PTR_ERR(wm8400->regmap);
goto struct_err;
}
wm8400->dev = &i2c->dev;
i2c_set_clientdata(i2c, wm8400);
ret = wm8400_init(wm8400, i2c->dev.platform_data);
if (ret != 0)
goto struct_err;
goto map_err;
return 0;
map_err:
regmap_exit(wm8400->regmap);
struct_err:
kfree(wm8400);
err:
......@@ -426,6 +377,7 @@ static int wm8400_i2c_remove(struct i2c_client *i2c)
struct wm8400 *wm8400 = i2c_get_clientdata(i2c);
wm8400_release(wm8400);
regmap_exit(wm8400->regmap);
kfree(wm8400);
return 0;
......
drivers/mfd/wm8994-core.c
View file @ fec4fe26
......@@ -16,9 +16,11 @@
#include <linux/module.h>
#include <linux/slab.h>
#include <linux/i2c.h>
#include <linux/err.h>
#include <linux/delay.h>
#include <linux/mfd/core.h>
#include <linux/pm_runtime.h>
#include <linux/regmap.h>
#include <linux/regulator/consumer.h>
#include <linux/regulator/machine.h>
......@@ -29,22 +31,7 @@
static int wm8994_read(struct wm8994 *wm8994, unsigned short reg,
int bytes, void *dest)
{
int ret, i;
u16 *buf = dest;
BUG_ON(bytes % 2);
BUG_ON(bytes <= 0);
ret = wm8994->read_dev(wm8994, reg, bytes, dest);
if (ret < 0)
return ret;
for (i = 0; i < bytes / 2; i++) {
dev_vdbg(wm8994->dev, "Read %04x from R%d(0x%x)\n",
be16_to_cpu(buf[i]), reg + i, reg + i);
}
return 0;
return regmap_raw_read(wm8994->regmap, reg, dest, bytes);
}
/**
......@@ -55,19 +42,15 @@ static int wm8994_read(struct wm8994 *wm8994, unsigned short reg,
*/
int wm8994_reg_read(struct wm8994 *wm8994, unsigned short reg)
{
unsigned short val;
unsigned int val;
int ret;
mutex_lock(&wm8994->io_lock);
ret = wm8994_read(wm8994, reg, 2, &val);
mutex_unlock(&wm8994->io_lock);
ret = regmap_read(wm8994->regmap, reg, &val);
if (ret < 0)
return ret;
else
return be16_to_cpu(val);
return val;
}
EXPORT_SYMBOL_GPL(wm8994_reg_read);
......@@ -82,33 +65,13 @@ EXPORT_SYMBOL_GPL(wm8994_reg_read);
int wm8994_bulk_read(struct wm8994 *wm8994, unsigned short reg,
int count, u16 *buf)
{
int ret;
mutex_lock(&wm8994->io_lock);
ret = wm8994_read(wm8994, reg, count * 2, buf);
mutex_unlock(&wm8994->io_lock);
return ret;
return regmap_bulk_read(wm8994->regmap, reg, buf, count);
}
EXPORT_SYMBOL_GPL(wm8994_bulk_read);
static int wm8994_write(struct wm8994 *wm8994, unsigned short reg,
int bytes, const void *src)
{
const u16 *buf = src;
int i;
BUG_ON(bytes % 2);
BUG_ON(bytes <= 0);
for (i = 0; i < bytes / 2; i++) {
dev_vdbg(wm8994->dev, "Write %04x to R%d(0x%x)\n",
be16_to_cpu(buf[i]), reg + i, reg + i);
}
return wm8994->write_dev(wm8994, reg, bytes, src);
return regmap_raw_write(wm8994->regmap, reg, src, bytes);
}
/**
......@@ -121,17 +84,7 @@ static int wm8994_write(struct wm8994 *wm8994, unsigned short reg,
int wm8994_reg_write(struct wm8994 *wm8994, unsigned short reg,
unsigned short val)
{
int ret;
val = cpu_to_be16(val);
mutex_lock(&wm8994->io_lock);
ret = wm8994_write(wm8994, reg, 2, &val);
mutex_unlock(&wm8994->io_lock);
return ret;
return regmap_write(wm8994->regmap, reg, val);
}
EXPORT_SYMBOL_GPL(wm8994_reg_write);
......@@ -146,15 +99,7 @@ EXPORT_SYMBOL_GPL(wm8994_reg_write);
int wm8994_bulk_write(struct wm8994 *wm8994, unsigned short reg,
int count, const u16 *buf)
{
int ret;
mutex_lock(&wm8994->io_lock);
ret = wm8994_write(wm8994, reg, count * 2, buf);
mutex_unlock(&wm8994->io_lock);
return ret;
return regmap_raw_write(wm8994->regmap, reg, buf, count * sizeof(u16));
}
EXPORT_SYMBOL_GPL(wm8994_bulk_write);
......@@ -169,28 +114,7 @@ EXPORT_SYMBOL_GPL(wm8994_bulk_write);
int wm8994_set_bits(struct wm8994 *wm8994, unsigned short reg,
unsigned short mask, unsigned short val)
{
int ret;
u16 r;
mutex_lock(&wm8994->io_lock);
ret = wm8994_read(wm8994, reg, 2, &r);
if (ret < 0)
goto out;
r = be16_to_cpu(r);
r &= ~mask;
r |= val;
r = cpu_to_be16(r);
ret = wm8994_write(wm8994, reg, 2, &r);
out:
mutex_unlock(&wm8994->io_lock);
return ret;
return regmap_update_bits(wm8994->regmap, reg, mask, val);
}
EXPORT_SYMBOL_GPL(wm8994_set_bits);
......@@ -378,6 +302,11 @@ static int wm8994_ldo_in_use(struct wm8994_pdata *pdata, int ldo)
}
#endif
static struct regmap_config wm8994_regmap_config = {
.reg_bits = 16,
.val_bits = 16,
};
/*
* Instantiate the generic non-control parts of the device.
*/
......@@ -387,7 +316,6 @@ static int wm8994_device_init(struct wm8994 *wm8994, int irq)
const char *devname;
int ret, i;
mutex_init(&wm8994->io_lock);
dev_set_drvdata(wm8994->dev, wm8994);
/* Add the on-chip regulators first for bootstrapping */
......@@ -397,7 +325,7 @@ static int wm8994_device_init(struct wm8994 *wm8994, int irq)
NULL, 0);
if (ret != 0) {
dev_err(wm8994->dev, "Failed to add children: %d\n", ret);
goto err;
goto err_regmap;
}
switch (wm8994->type) {
......@@ -409,7 +337,7 @@ static int wm8994_device_init(struct wm8994 *wm8994, int irq)
break;
default:
BUG();
goto err;
goto err_regmap;
}
wm8994->supplies = kzalloc(sizeof(struct regulator_bulk_data) *
......@@ -417,7 +345,7 @@ static int wm8994_device_init(struct wm8994 *wm8994, int irq)
GFP_KERNEL);
if (!wm8994->supplies) {
ret = -ENOMEM;
goto err;
goto err_regmap;
}
switch (wm8994->type) {
......@@ -431,7 +359,7 @@ static int wm8994_device_init(struct wm8994 *wm8994, int irq)
break;
default:
BUG();
goto err;
goto err_regmap;
}
ret = regulator_bulk_get(wm8994->dev, wm8994->num_supplies,
......@@ -554,7 +482,8 @@ static int wm8994_device_init(struct wm8994 *wm8994, int irq)
regulator_bulk_free(wm8994->num_supplies, wm8994->supplies);
err_supplies:
kfree(wm8994->supplies);
err:
err_regmap:
regmap_exit(wm8994->regmap);
mfd_remove_devices(wm8994->dev);
kfree(wm8994);
return ret;
......@@ -569,62 +498,15 @@ static void wm8994_device_exit(struct wm8994 *wm8994)
wm8994->supplies);
regulator_bulk_free(wm8994->num_supplies, wm8994->supplies);
kfree(wm8994->supplies);
regmap_exit(wm8994->regmap);
kfree(wm8994);
}
static int wm8994_i2c_read_device(struct wm8994 *wm8994, unsigned short reg,
int bytes, void *dest)
{
struct i2c_client *i2c = wm8994->control_data;
int ret;
u16 r = cpu_to_be16(reg);
ret = i2c_master_send(i2c, (unsigned char *)&r, 2);
if (ret < 0)
return ret;
if (ret != 2)
return -EIO;
ret = i2c_master_recv(i2c, dest, bytes);
if (ret < 0)
return ret;
if (ret != bytes)
return -EIO;
return 0;
}
static int wm8994_i2c_write_device(struct wm8994 *wm8994, unsigned short reg,
int bytes, const void *src)
{
struct i2c_client *i2c = wm8994->control_data;
struct i2c_msg xfer[2];
int ret;
reg = cpu_to_be16(reg);
xfer[0].addr = i2c->addr;
xfer[0].flags = 0;
xfer[0].len = 2;
xfer[0].buf = (char *)&reg;
xfer[1].addr = i2c->addr;
xfer[1].flags = I2C_M_NOSTART;
xfer[1].len = bytes;
xfer[1].buf = (char *)src;
ret = i2c_transfer(i2c->adapter, xfer, 2);
if (ret < 0)
return ret;
if (ret != 2)
return -EIO;
return 0;
}
static int wm8994_i2c_probe(struct i2c_client *i2c,
const struct i2c_device_id *id)
{
struct wm8994 *wm8994;
int ret;
wm8994 = kzalloc(sizeof(struct wm8994), GFP_KERNEL);
if (wm8994 == NULL)
......@@ -632,12 +514,18 @@ static int wm8994_i2c_probe(struct i2c_client *i2c,
i2c_set_clientdata(i2c, wm8994);
wm8994->dev = &i2c->dev;
wm8994->control_data = i2c;
wm8994->read_dev = wm8994_i2c_read_device;
wm8994->write_dev = wm8994_i2c_write_device;
wm8994->irq = i2c->irq;
wm8994->type = id->driver_data;
wm8994->regmap = regmap_init_i2c(i2c, &wm8994_regmap_config);
if (IS_ERR(wm8994->regmap)) {
ret = PTR_ERR(wm8994->regmap);
dev_err(wm8994->dev, "Failed to allocate register map: %d\n",
ret);
kfree(wm8994);
return ret;
}
return wm8994_device_init(wm8994, i2c->irq);
}
......
include/linux/mfd/wm831x/core.h
View file @ fec4fe26
......@@ -18,6 +18,7 @@
#include <linux/completion.h>
#include <linux/interrupt.h>
#include <linux/list.h>
#include <linux/regmap.h>
/*
* Register values.
......@@ -361,12 +362,8 @@ struct wm831x {
struct mutex io_lock;
struct device *dev;
int (*read_dev)(struct wm831x *wm831x, unsigned short reg,
int bytes, void *dest);
int (*write_dev)(struct wm831x *wm831x, unsigned short reg,
int bytes, void *src);
void *control_data;
struct regmap *regmap;
int irq; /* Our chip IRQ */
struct mutex irq_lock;
......@@ -416,4 +413,6 @@ int wm831x_irq_init(struct wm831x *wm831x, int irq);
void wm831x_irq_exit(struct wm831x *wm831x);
void wm831x_auxadc_init(struct wm831x *wm831x);
extern struct regmap_config wm831x_regmap_config;
#endif
include/linux/mfd/wm8400-private.h
View file @ fec4fe26
......@@ -25,16 +25,15 @@
#include <linux/mutex.h>
#include <linux/platform_device.h>
struct regmap;
#define WM8400_REGISTER_COUNT 0x55
struct wm8400 {
struct device *dev;
int (*read_dev)(void *data, char reg, int count, u16 *dst);
int (*write_dev)(void *data, char reg, int count, const u16 *src);
struct mutex io_lock;
void *io_data;
struct regmap *regmap;
u16 reg_cache[WM8400_REGISTER_COUNT];
......
include/linux/mfd/wm8994/core.h
View file @ fec4fe26
......@@ -24,6 +24,7 @@ enum wm8994_type {
struct regulator_dev;
struct regulator_bulk_data;
struct regmap;
#define WM8994_NUM_GPIO_REGS 11
#define WM8994_NUM_LDO_REGS 2
......@@ -50,18 +51,12 @@ struct regulator_bulk_data;
#define WM8994_IRQ_GPIO(x) (x + WM8994_IRQ_TEMP_WARN)
struct wm8994 {
struct mutex io_lock;
struct mutex irq_lock;
enum wm8994_type type;
struct device *dev;
int (*read_dev)(struct wm8994 *wm8994, unsigned short reg,
int bytes, void *dest);
int (*write_dev)(struct wm8994 *wm8994, unsigned short reg,
int bytes, const void *src);
void *control_data;
struct regmap *regmap;
int gpio_base;
int irq_base;
......
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