#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>
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);
}
/**
*/
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);
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);
}
/**
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);
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);
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);
* and should be handled via the standard regulator API supply
* management.
*/
+static const char *wm1811_main_supplies[] = {
+ "DBVDD1",
+ "DBVDD2",
+ "DBVDD3",
+ "DCVDD",
+ "AVDD1",
+ "AVDD2",
+ "CPVDD",
+ "SPKVDD1",
+ "SPKVDD2",
+};
+
static const char *wm8994_main_supplies[] = {
"DBVDD",
"DCVDD",
}
#endif
+static struct regmap_config wm8994_regmap_config = {
+ .reg_bits = 16,
+ .val_bits = 16,
+};
+
/*
* Instantiate the generic non-control parts of the device.
*/
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 */
NULL, 0);
if (ret != 0) {
dev_err(wm8994->dev, "Failed to add children: %d\n", ret);
- goto err;
+ goto err_regmap;
}
switch (wm8994->type) {
+ case WM1811:
+ wm8994->num_supplies = ARRAY_SIZE(wm1811_main_supplies);
+ break;
case WM8994:
wm8994->num_supplies = ARRAY_SIZE(wm8994_main_supplies);
break;
break;
default:
BUG();
- goto err;
+ goto err_regmap;
}
wm8994->supplies = kzalloc(sizeof(struct regulator_bulk_data) *
GFP_KERNEL);
if (!wm8994->supplies) {
ret = -ENOMEM;
- goto err;
+ goto err_regmap;
}
switch (wm8994->type) {
+ case WM1811:
+ for (i = 0; i < ARRAY_SIZE(wm1811_main_supplies); i++)
+ wm8994->supplies[i].supply = wm1811_main_supplies[i];
+ break;
case WM8994:
for (i = 0; i < ARRAY_SIZE(wm8994_main_supplies); i++)
wm8994->supplies[i].supply = wm8994_main_supplies[i];
break;
default:
BUG();
- goto err;
+ goto err_regmap;
}
ret = regulator_bulk_get(wm8994->dev, wm8994->num_supplies,
goto err_enable;
}
switch (ret) {
+ case 0x1811:
+ devname = "WM1811";
+ if (wm8994->type != WM1811)
+ dev_warn(wm8994->dev, "Device registered as type %d\n",
+ wm8994->type);
+ wm8994->type = WM1811;
+ break;
case 0x8994:
devname = "WM8994";
if (wm8994->type != WM8994)
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;
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 *)®
-
- 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)
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);
}
}
static const struct i2c_device_id wm8994_i2c_id[] = {
+ { "wm1811", WM1811 },
{ "wm8994", WM8994 },
{ "wm8958", WM8958 },
{ }
git.openpandora.org / pandora-kernel.git / blobdiff