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-rw-r--r--drivers/mfd/wm8994-core.c93
-rw-r--r--include/linux/mfd/wm8994/core.h8
2 files changed, 82 insertions, 19 deletions
diff --git a/drivers/mfd/wm8994-core.c b/drivers/mfd/wm8994-core.c
index b3b2aaf89dbe..8d221ba5e38d 100644
--- a/drivers/mfd/wm8994-core.c
+++ b/drivers/mfd/wm8994-core.c
@@ -218,6 +218,18 @@ static const char *wm8994_main_supplies[] = {
"SPKVDD2",
};
+static const char *wm8958_main_supplies[] = {
+ "DBVDD1",
+ "DBVDD2",
+ "DBVDD3",
+ "DCVDD",
+ "AVDD1",
+ "AVDD2",
+ "CPVDD",
+ "SPKVDD1",
+ "SPKVDD2",
+};
+
#ifdef CONFIG_PM
static int wm8994_device_suspend(struct device *dev)
{
@@ -239,7 +251,7 @@ static int wm8994_device_suspend(struct device *dev)
if (ret < 0)
dev_err(dev, "Failed to save LDO registers: %d\n", ret);
- ret = regulator_bulk_disable(ARRAY_SIZE(wm8994_main_supplies),
+ ret = regulator_bulk_disable(wm8994->num_supplies,
wm8994->supplies);
if (ret != 0) {
dev_err(dev, "Failed to disable supplies: %d\n", ret);
@@ -254,7 +266,7 @@ static int wm8994_device_resume(struct device *dev)
struct wm8994 *wm8994 = dev_get_drvdata(dev);
int ret;
- ret = regulator_bulk_enable(ARRAY_SIZE(wm8994_main_supplies),
+ ret = regulator_bulk_enable(wm8994->num_supplies,
wm8994->supplies);
if (ret != 0) {
dev_err(dev, "Failed to enable supplies: %d\n", ret);
@@ -305,9 +317,10 @@ static int wm8994_ldo_in_use(struct wm8994_pdata *pdata, int ldo)
/*
* Instantiate the generic non-control parts of the device.
*/
-static int wm8994_device_init(struct wm8994 *wm8994, unsigned long id, int irq)
+static int wm8994_device_init(struct wm8994 *wm8994, int irq)
{
struct wm8994_pdata *pdata = wm8994->dev->platform_data;
+ const char *devname;
int ret, i;
mutex_init(&wm8994->io_lock);
@@ -323,25 +336,48 @@ static int wm8994_device_init(struct wm8994 *wm8994, unsigned long id, int irq)
goto err;
}
+ switch (wm8994->type) {
+ case WM8994:
+ wm8994->num_supplies = ARRAY_SIZE(wm8994_main_supplies);
+ break;
+ case WM8958:
+ wm8994->num_supplies = ARRAY_SIZE(wm8958_main_supplies);
+ break;
+ default:
+ BUG();
+ return -EINVAL;
+ }
+
wm8994->supplies = kzalloc(sizeof(struct regulator_bulk_data) *
- ARRAY_SIZE(wm8994_main_supplies),
+ wm8994->num_supplies,
GFP_KERNEL);
if (!wm8994->supplies) {
ret = -ENOMEM;
goto err;
}
- for (i = 0; i < ARRAY_SIZE(wm8994_main_supplies); i++)
- wm8994->supplies[i].supply = wm8994_main_supplies[i];
-
- ret = regulator_bulk_get(wm8994->dev, ARRAY_SIZE(wm8994_main_supplies),
+ switch (wm8994->type) {
+ case WM8994:
+ for (i = 0; i < ARRAY_SIZE(wm8994_main_supplies); i++)
+ wm8994->supplies[i].supply = wm8994_main_supplies[i];
+ break;
+ case WM8958:
+ for (i = 0; i < ARRAY_SIZE(wm8958_main_supplies); i++)
+ wm8994->supplies[i].supply = wm8958_main_supplies[i];
+ break;
+ default:
+ BUG();
+ return -EINVAL;
+ }
+
+ ret = regulator_bulk_get(wm8994->dev, wm8994->num_supplies,
wm8994->supplies);
if (ret != 0) {
dev_err(wm8994->dev, "Failed to get supplies: %d\n", ret);
goto err_supplies;
}
- ret = regulator_bulk_enable(ARRAY_SIZE(wm8994_main_supplies),
+ ret = regulator_bulk_enable(wm8994->num_supplies,
wm8994->supplies);
if (ret != 0) {
dev_err(wm8994->dev, "Failed to enable supplies: %d\n", ret);
@@ -353,7 +389,22 @@ static int wm8994_device_init(struct wm8994 *wm8994, unsigned long id, int irq)
dev_err(wm8994->dev, "Failed to read ID register\n");
goto err_enable;
}
- if (ret != 0x8994) {
+ switch (ret) {
+ case 0x8994:
+ devname = "WM8994";
+ if (wm8994->type != WM8994)
+ dev_warn(wm8994->dev, "Device registered as type %d\n",
+ wm8994->type);
+ wm8994->type = WM8994;
+ break;
+ case 0x8958:
+ devname = "WM8958";
+ if (wm8994->type != WM8958)
+ dev_warn(wm8994->dev, "Device registered as type %d\n",
+ wm8994->type);
+ wm8994->type = WM8958;
+ break;
+ default:
dev_err(wm8994->dev, "Device is not a WM8994, ID is %x\n",
ret);
ret = -EINVAL;
@@ -370,14 +421,16 @@ static int wm8994_device_init(struct wm8994 *wm8994, unsigned long id, int irq)
switch (ret) {
case 0:
case 1:
- dev_warn(wm8994->dev, "revision %c not fully supported\n",
- 'A' + ret);
+ if (wm8994->type == WM8994)
+ dev_warn(wm8994->dev,
+ "revision %c not fully supported\n",
+ 'A' + ret);
break;
default:
- dev_info(wm8994->dev, "revision %c\n", 'A' + ret);
break;
}
+ dev_info(wm8994->dev, "%s revision %c\n", devname, 'A' + ret);
if (pdata) {
wm8994->irq_base = pdata->irq_base;
@@ -423,10 +476,10 @@ static int wm8994_device_init(struct wm8994 *wm8994, unsigned long id, int irq)
err_irq:
wm8994_irq_exit(wm8994);
err_enable:
- regulator_bulk_disable(ARRAY_SIZE(wm8994_main_supplies),
+ regulator_bulk_disable(wm8994->num_supplies,
wm8994->supplies);
err_get:
- regulator_bulk_free(ARRAY_SIZE(wm8994_main_supplies), wm8994->supplies);
+ regulator_bulk_free(wm8994->num_supplies, wm8994->supplies);
err_supplies:
kfree(wm8994->supplies);
err:
@@ -439,9 +492,9 @@ static void wm8994_device_exit(struct wm8994 *wm8994)
{
mfd_remove_devices(wm8994->dev);
wm8994_irq_exit(wm8994);
- regulator_bulk_disable(ARRAY_SIZE(wm8994_main_supplies),
+ regulator_bulk_disable(wm8994->num_supplies,
wm8994->supplies);
- regulator_bulk_free(ARRAY_SIZE(wm8994_main_supplies), wm8994->supplies);
+ regulator_bulk_free(wm8994->num_supplies, wm8994->supplies);
kfree(wm8994->supplies);
kfree(wm8994);
}
@@ -506,8 +559,9 @@ static int wm8994_i2c_probe(struct i2c_client *i2c,
wm8994->read_dev = wm8994_i2c_read_device;
wm8994->write_dev = wm8994_i2c_write_device;
wm8994->irq = i2c->irq;
+ wm8994->type = id->driver_data;
- return wm8994_device_init(wm8994, id->driver_data, i2c->irq);
+ return wm8994_device_init(wm8994, i2c->irq);
}
static int wm8994_i2c_remove(struct i2c_client *i2c)
@@ -535,7 +589,8 @@ static int wm8994_i2c_resume(struct i2c_client *i2c)
#endif
static const struct i2c_device_id wm8994_i2c_id[] = {
- { "wm8994", 0 },
+ { "wm8994", WM8994 },
+ { "wm8958", WM8958 },
{ }
};
MODULE_DEVICE_TABLE(i2c, wm8994_i2c_id);
diff --git a/include/linux/mfd/wm8994/core.h b/include/linux/mfd/wm8994/core.h
index de79baee4925..3fd36845ca45 100644
--- a/include/linux/mfd/wm8994/core.h
+++ b/include/linux/mfd/wm8994/core.h
@@ -17,6 +17,11 @@
#include <linux/interrupt.h>
+enum wm8994_type {
+ WM8994 = 0,
+ WM8958 = 1,
+};
+
struct regulator_dev;
struct regulator_bulk_data;
@@ -48,6 +53,8 @@ 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);
@@ -68,6 +75,7 @@ struct wm8994 {
u16 gpio_regs[WM8994_NUM_GPIO_REGS];
struct regulator_dev *dbvdd;
+ int num_supplies;
struct regulator_bulk_data *supplies;
};
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-27 16:46:26 +0000