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Diffstat (limited to 'drivers/mfd/twl-core.c')
-rw-r--r--drivers/mfd/twl-core.c136
1 files changed, 73 insertions, 63 deletions
diff --git a/drivers/mfd/twl-core.c b/drivers/mfd/twl-core.c
index 44714f5cf495..9021f44de2a4 100644
--- a/drivers/mfd/twl-core.c
+++ b/drivers/mfd/twl-core.c
@@ -1,5 +1,6 @@
/*
- * twl4030_core.c - driver for TWL4030/TPS659x0 PM and audio CODEC devices
+ * twl_core.c - driver for TWL4030/TWL5030/TWL60X0/TPS659x0 PM
+ * and audio CODEC devices
*
* Copyright (C) 2005-2006 Texas Instruments, Inc.
*
@@ -55,7 +56,7 @@
* (and associated registers).
*/
-#define DRIVER_NAME "twl4030"
+#define DRIVER_NAME "twl"
#if defined(CONFIG_TWL4030_BCI_BATTERY) || \
defined(CONFIG_TWL4030_BCI_BATTERY_MODULE)
@@ -125,7 +126,7 @@
/* Last - for index max*/
#define TWL4030_MODULE_LAST TWL4030_MODULE_SECURED_REG
-#define TWL4030_NUM_SLAVES 4
+#define TWL_NUM_SLAVES 4
#if defined(CONFIG_INPUT_TWL4030_PWRBUTTON) \
|| defined(CONFIG_INPUT_TWL4030_PWBUTTON_MODULE)
@@ -134,6 +135,13 @@
#define twl_has_pwrbutton() false
#endif
+#define SUB_CHIP_ID0 0
+#define SUB_CHIP_ID1 1
+#define SUB_CHIP_ID2 2
+#define SUB_CHIP_ID3 3
+
+#define TWL_MODULE_LAST TWL4030_MODULE_LAST
+
/* Base Address defns for twl4030_map[] */
/* subchip/slave 0 - USB ID */
@@ -201,7 +209,7 @@
static bool inuse;
/* Structure for each TWL4030 Slave */
-struct twl4030_client {
+struct twl_client {
struct i2c_client *client;
u8 address;
@@ -212,16 +220,16 @@ struct twl4030_client {
struct mutex xfer_lock;
};
-static struct twl4030_client twl4030_modules[TWL4030_NUM_SLAVES];
+static struct twl_client twl_modules[TWL_NUM_SLAVES];
/* mapping the module id to slave id and base address */
-struct twl4030mapping {
+struct twl_mapping {
unsigned char sid; /* Slave ID */
unsigned char base; /* base address */
};
-static struct twl4030mapping twl4030_map[TWL4030_MODULE_LAST + 1] = {
+static struct twl_mapping twl4030_map[TWL4030_MODULE_LAST + 1] = {
/*
* NOTE: don't change this table without updating the
* <linux/i2c/twl4030.h> defines for TWL4030_MODULE_*
@@ -262,7 +270,7 @@ static struct twl4030mapping twl4030_map[TWL4030_MODULE_LAST + 1] = {
/* Exported Functions */
/**
- * twl4030_i2c_write - Writes a n bit register in TWL4030
+ * twl_i2c_write - Writes a n bit register in TWL4030/TWL5030/TWL60X0
* @mod_no: module number
* @value: an array of num_bytes+1 containing data to write
* @reg: register address (just offset will do)
@@ -273,19 +281,19 @@ static struct twl4030mapping twl4030_map[TWL4030_MODULE_LAST + 1] = {
*
* Returns the result of operation - 0 is success
*/
-int twl4030_i2c_write(u8 mod_no, u8 *value, u8 reg, unsigned num_bytes)
+int twl_i2c_write(u8 mod_no, u8 *value, u8 reg, unsigned num_bytes)
{
int ret;
int sid;
- struct twl4030_client *twl;
+ struct twl_client *twl;
struct i2c_msg *msg;
- if (unlikely(mod_no > TWL4030_MODULE_LAST)) {
+ if (unlikely(mod_no > TWL_MODULE_LAST)) {
pr_err("%s: invalid module number %d\n", DRIVER_NAME, mod_no);
return -EPERM;
}
sid = twl4030_map[mod_no].sid;
- twl = &twl4030_modules[sid];
+ twl = &twl_modules[sid];
if (unlikely(!inuse)) {
pr_err("%s: client %d is not initialized\n", DRIVER_NAME, sid);
@@ -318,10 +326,10 @@ int twl4030_i2c_write(u8 mod_no, u8 *value, u8 reg, unsigned num_bytes)
return 0;
}
}
-EXPORT_SYMBOL(twl4030_i2c_write);
+EXPORT_SYMBOL(twl_i2c_write);
/**
- * twl4030_i2c_read - Reads a n bit register in TWL4030
+ * twl_i2c_read - Reads a n bit register in TWL4030/TWL5030/TWL60X0
* @mod_no: module number
* @value: an array of num_bytes containing data to be read
* @reg: register address (just offset will do)
@@ -329,20 +337,20 @@ EXPORT_SYMBOL(twl4030_i2c_write);
*
* Returns result of operation - num_bytes is success else failure.
*/
-int twl4030_i2c_read(u8 mod_no, u8 *value, u8 reg, unsigned num_bytes)
+int twl_i2c_read(u8 mod_no, u8 *value, u8 reg, unsigned num_bytes)
{
int ret;
u8 val;
int sid;
- struct twl4030_client *twl;
+ struct twl_client *twl;
struct i2c_msg *msg;
- if (unlikely(mod_no > TWL4030_MODULE_LAST)) {
+ if (unlikely(mod_no > TWL_MODULE_LAST)) {
pr_err("%s: invalid module number %d\n", DRIVER_NAME, mod_no);
return -EPERM;
}
sid = twl4030_map[mod_no].sid;
- twl = &twl4030_modules[sid];
+ twl = &twl_modules[sid];
if (unlikely(!inuse)) {
pr_err("%s: client %d is not initialized\n", DRIVER_NAME, sid);
@@ -377,40 +385,40 @@ int twl4030_i2c_read(u8 mod_no, u8 *value, u8 reg, unsigned num_bytes)
return 0;
}
}
-EXPORT_SYMBOL(twl4030_i2c_read);
+EXPORT_SYMBOL(twl_i2c_read);
/**
- * twl4030_i2c_write_u8 - Writes a 8 bit register in TWL4030
+ * twl_i2c_write_u8 - Writes a 8 bit register in TWL4030/TWL5030/TWL60X0
* @mod_no: module number
* @value: the value to be written 8 bit
* @reg: register address (just offset will do)
*
* Returns result of operation - 0 is success
*/
-int twl4030_i2c_write_u8(u8 mod_no, u8 value, u8 reg)
+int twl_i2c_write_u8(u8 mod_no, u8 value, u8 reg)
{
/* 2 bytes offset 1 contains the data offset 0 is used by i2c_write */
u8 temp_buffer[2] = { 0 };
/* offset 1 contains the data */
temp_buffer[1] = value;
- return twl4030_i2c_write(mod_no, temp_buffer, reg, 1);
+ return twl_i2c_write(mod_no, temp_buffer, reg, 1);
}
-EXPORT_SYMBOL(twl4030_i2c_write_u8);
+EXPORT_SYMBOL(twl_i2c_write_u8);
/**
- * twl4030_i2c_read_u8 - Reads a 8 bit register from TWL4030
+ * twl_i2c_read_u8 - Reads a 8 bit register from TWL4030/TWL5030/TWL60X0
* @mod_no: module number
* @value: the value read 8 bit
* @reg: register address (just offset will do)
*
* Returns result of operation - 0 is success
*/
-int twl4030_i2c_read_u8(u8 mod_no, u8 *value, u8 reg)
+int twl_i2c_read_u8(u8 mod_no, u8 *value, u8 reg)
{
- return twl4030_i2c_read(mod_no, value, reg, 1);
+ return twl_i2c_read(mod_no, value, reg, 1);
}
-EXPORT_SYMBOL(twl4030_i2c_read_u8);
+EXPORT_SYMBOL(twl_i2c_read_u8);
/*----------------------------------------------------------------------*/
@@ -420,7 +428,7 @@ add_numbered_child(unsigned chip, const char *name, int num,
bool can_wakeup, int irq0, int irq1)
{
struct platform_device *pdev;
- struct twl4030_client *twl = &twl4030_modules[chip];
+ struct twl_client *twl = &twl_modules[chip];
int status;
pdev = platform_device_alloc(name, num);
@@ -515,23 +523,24 @@ add_children(struct twl4030_platform_data *pdata, unsigned long features)
pdata->bci, sizeof(*pdata->bci),
false,
/* irq0 = CHG_PRES, irq1 = BCI */
- pdata->irq_base + 8 + 1, pdata->irq_base + 2);
+ pdata->irq_base + BCI_PRES_INTR_OFFSET,
+ pdata->irq_base + BCI_INTR_OFFSET);
if (IS_ERR(child))
return PTR_ERR(child);
}
if (twl_has_gpio() && pdata->gpio) {
- child = add_child(1, "twl4030_gpio",
+ child = add_child(SUB_CHIP_ID1, "twl4030_gpio",
pdata->gpio, sizeof(*pdata->gpio),
- false, pdata->irq_base + 0, 0);
+ false, pdata->irq_base + GPIO_INTR_OFFSET, 0);
if (IS_ERR(child))
return PTR_ERR(child);
}
if (twl_has_keypad() && pdata->keypad) {
- child = add_child(2, "twl4030_keypad",
+ child = add_child(SUB_CHIP_ID2, "twl4030_keypad",
pdata->keypad, sizeof(*pdata->keypad),
- true, pdata->irq_base + 1, 0);
+ true, pdata->irq_base + KEYPAD_INTR_OFFSET, 0);
if (IS_ERR(child))
return PTR_ERR(child);
}
@@ -539,7 +548,7 @@ add_children(struct twl4030_platform_data *pdata, unsigned long features)
if (twl_has_madc() && pdata->madc) {
child = add_child(2, "twl4030_madc",
pdata->madc, sizeof(*pdata->madc),
- true, pdata->irq_base + 3, 0);
+ true, pdata->irq_base + MADC_INTR_OFFSET, 0);
if (IS_ERR(child))
return PTR_ERR(child);
}
@@ -554,7 +563,7 @@ add_children(struct twl4030_platform_data *pdata, unsigned long features)
*/
child = add_child(3, "twl4030_rtc",
NULL, 0,
- true, pdata->irq_base + 8 + 3, 0);
+ true, pdata->irq_base + RTC_INTR_OFFSET, 0);
if (IS_ERR(child))
return PTR_ERR(child);
}
@@ -604,7 +613,8 @@ add_children(struct twl4030_platform_data *pdata, unsigned long features)
pdata->usb, sizeof(*pdata->usb),
true,
/* irq0 = USB_PRES, irq1 = USB */
- pdata->irq_base + 8 + 2, pdata->irq_base + 4);
+ pdata->irq_base + USB_PRES_INTR_OFFSET,
+ pdata->irq_base + USB_INTR_OFFSET);
if (IS_ERR(child))
return PTR_ERR(child);
@@ -724,7 +734,7 @@ static inline int __init protect_pm_master(void)
{
int e = 0;
- e = twl4030_i2c_write_u8(TWL4030_MODULE_PM_MASTER, KEY_LOCK,
+ e = twl_i2c_write_u8(TWL_MODULE_PM_MASTER, KEY_LOCK,
R_PROTECT_KEY);
return e;
}
@@ -733,9 +743,9 @@ static inline int __init unprotect_pm_master(void)
{
int e = 0;
- e |= twl4030_i2c_write_u8(TWL4030_MODULE_PM_MASTER, KEY_UNLOCK1,
+ e |= twl_i2c_write_u8(TWL_MODULE_PM_MASTER, KEY_UNLOCK1,
R_PROTECT_KEY);
- e |= twl4030_i2c_write_u8(TWL4030_MODULE_PM_MASTER, KEY_UNLOCK2,
+ e |= twl_i2c_write_u8(TWL_MODULE_PM_MASTER, KEY_UNLOCK2,
R_PROTECT_KEY);
return e;
}
@@ -755,7 +765,7 @@ static void clocks_init(struct device *dev,
osc = clk_get(dev, "osc_sys_ck");
if (IS_ERR(osc)) {
- printk(KERN_WARNING "Skipping twl4030 internal clock init and "
+ printk(KERN_WARNING "Skipping twl internal clock init and "
"using bootloader value (unknown osc rate)\n");
return;
}
@@ -769,7 +779,7 @@ static void clocks_init(struct device *dev,
*/
osc = ERR_PTR(-EIO);
- printk(KERN_WARNING "Skipping twl4030 internal clock init and "
+ printk(KERN_WARNING "Skipping twl internal clock init and "
"using bootloader value (unknown osc rate)\n");
return;
@@ -793,7 +803,7 @@ static void clocks_init(struct device *dev,
e |= unprotect_pm_master();
/* effect->MADC+USB ck en */
- e |= twl4030_i2c_write_u8(TWL4030_MODULE_PM_MASTER, ctrl, R_CFG_BOOT);
+ e |= twl_i2c_write_u8(TWL_MODULE_PM_MASTER, ctrl, R_CFG_BOOT);
e |= protect_pm_master();
if (e < 0)
@@ -806,7 +816,7 @@ int twl_init_irq(int irq_num, unsigned irq_base, unsigned irq_end);
int twl_exit_irq(void);
int twl_init_chip_irq(const char *chip);
-static int twl4030_remove(struct i2c_client *client)
+static int twl_remove(struct i2c_client *client)
{
unsigned i;
int status;
@@ -815,12 +825,12 @@ static int twl4030_remove(struct i2c_client *client)
if (status < 0)
return status;
- for (i = 0; i < TWL4030_NUM_SLAVES; i++) {
- struct twl4030_client *twl = &twl4030_modules[i];
+ for (i = 0; i < TWL_NUM_SLAVES; i++) {
+ struct twl_client *twl = &twl_modules[i];
if (twl->client && twl->client != client)
i2c_unregister_device(twl->client);
- twl4030_modules[i].client = NULL;
+ twl_modules[i].client = NULL;
}
inuse = false;
return 0;
@@ -828,7 +838,7 @@ static int twl4030_remove(struct i2c_client *client)
/* NOTE: this driver only handles a single twl4030/tps659x0 chip */
static int __init
-twl4030_probe(struct i2c_client *client, const struct i2c_device_id *id)
+twl_probe(struct i2c_client *client, const struct i2c_device_id *id)
{
int status;
unsigned i;
@@ -849,8 +859,8 @@ twl4030_probe(struct i2c_client *client, const struct i2c_device_id *id)
return -EBUSY;
}
- for (i = 0; i < TWL4030_NUM_SLAVES; i++) {
- struct twl4030_client *twl = &twl4030_modules[i];
+ for (i = 0; i < TWL_NUM_SLAVES; i++) {
+ struct twl_client *twl = &twl_modules[i];
twl->address = client->addr + i;
if (i == 0)
@@ -889,11 +899,11 @@ twl4030_probe(struct i2c_client *client, const struct i2c_device_id *id)
status = add_children(pdata, id->driver_data);
fail:
if (status < 0)
- twl4030_remove(client);
+ twl_remove(client);
return status;
}
-static const struct i2c_device_id twl4030_ids[] = {
+static const struct i2c_device_id twl_ids[] = {
{ "twl4030", TWL4030_VAUX2 }, /* "Triton 2" */
{ "twl5030", 0 }, /* T2 updated */
{ "twl5031", TWL5031 }, /* TWL5030 updated */
@@ -902,28 +912,28 @@ static const struct i2c_device_id twl4030_ids[] = {
{ "tps65920", TPS_SUBSET }, /* fewer LDOs; no codec or charger */
{ /* end of list */ },
};
-MODULE_DEVICE_TABLE(i2c, twl4030_ids);
+MODULE_DEVICE_TABLE(i2c, twl_ids);
/* One Client Driver , 4 Clients */
-static struct i2c_driver twl4030_driver = {
+static struct i2c_driver twl_driver = {
.driver.name = DRIVER_NAME,
- .id_table = twl4030_ids,
- .probe = twl4030_probe,
- .remove = twl4030_remove,
+ .id_table = twl_ids,
+ .probe = twl_probe,
+ .remove = twl_remove,
};
-static int __init twl4030_init(void)
+static int __init twl_init(void)
{
- return i2c_add_driver(&twl4030_driver);
+ return i2c_add_driver(&twl_driver);
}
-subsys_initcall(twl4030_init);
+subsys_initcall(twl_init);
-static void __exit twl4030_exit(void)
+static void __exit twl_exit(void)
{
- i2c_del_driver(&twl4030_driver);
+ i2c_del_driver(&twl_driver);
}
-module_exit(twl4030_exit);
+module_exit(twl_exit);
MODULE_AUTHOR("Texas Instruments, Inc.");
-MODULE_DESCRIPTION("I2C Core interface for TWL4030");
+MODULE_DESCRIPTION("I2C Core interface for TWL");
MODULE_LICENSE("GPL");
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-03 03:12:39 +0000