mfd: Rename all twl4030_i2c*

This patch renames function names like twl4030_i2c_write_u8,
twl4030_i2c_read_u8 to twl_i2c_write_u8, twl_i2c_read_u8
and also common variable in twl-core.c

Signed-off-by: Rajendra Nayak <rnayak@ti.com>
Signed-off-by: Balaji T K <balajitk@ti.com>
Signed-off-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
Acked-by: Kevin Hilman <khilman@deeprootsystems.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>

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");