#include <linux/slab.h>
 #include <linux/clk.h>
 #include <linux/device.h>
+#include <linux/irq.h>
 
-#include <asm/irq.h>
 #include <asm/mach/irq.h>
 
 #include <asm/arch/gpio.h>
  *
  * @return result of operation - 0 is success
  */
-int twl4030_i2c_write(u8 mod_no, u8 * value, u8 reg, u8 num_bytes)
+int twl4030_i2c_write(u8 mod_no, u8 *value, u8 reg, u8 num_bytes)
 {
        int ret;
        int sid;
                ret = 0;
        return ret;
 }
+EXPORT_SYMBOL(twl4030_i2c_write);
 
 /**
  * @brief twl4030_i2c_read - Reads a n bit register in TWL4030
  *
  * @return result of operation - num_bytes is success else failure.
  */
-int twl4030_i2c_read(u8 mod_no, u8 * value, u8 reg, u8 num_bytes)
+int twl4030_i2c_read(u8 mod_no, u8 *value, u8 reg, u8 num_bytes)
 {
        int ret;
        u8 val;
                ret = 0;
        return ret;
 }
+EXPORT_SYMBOL(twl4030_i2c_read);
 
 /**
  * @brief twl4030_i2c_write_u8 - Writes a 8 bit register in TWL4030
        temp_buffer[1] = value;
        return twl4030_i2c_write(mod_no, temp_buffer, reg, 1);
 }
+EXPORT_SYMBOL(twl4030_i2c_write_u8);
 
 /**
  * @brief twl4030_i2c_read_u8 - Reads a 8 bit register from TWL4030
  *
  * @return result of operation - 0 is success
  */
-int twl4030_i2c_read_u8(u8 mod_no, u8 * value, u8 reg)
+int twl4030_i2c_read_u8(u8 mod_no, u8 *value, u8 reg)
 {
        return twl4030_i2c_read(mod_no, value, reg, 1);
 }
+EXPORT_SYMBOL(twl4030_i2c_read_u8);
 
 /* Helper Functions */
 
 
                        if (retval != IRQ_HANDLED)
                                printk(KERN_ERR "ISR for TWL4030 module"
-                                       " irq %d can't handle interrupt\n", irq);
+                                       " irq %d can't handle interrupt\n",
+                                       irq);
 
                        /*
                         * Here is where we should call the unmask method, but
                        if (++i2c_errors >= max_i2c_errors) {
                                printk(KERN_ERR "Maximum I2C error count"
                                                " exceeded.  Terminating %s.\n",
-                                               __FUNCTION__);
+                                               __func__);
                                break;
                        }
                        continue;
        }
 
        /* Check basic functionality */
-       if (!(err = i2c_check_functionality(adapter, I2C_FUNC_SMBUS_WORD_DATA |
-                                               I2C_FUNC_SMBUS_WRITE_BYTE))) {
+       err = i2c_check_functionality(adapter,
+                       I2C_FUNC_SMBUS_WORD_DATA
+                       | I2C_FUNC_SMBUS_WRITE_BYTE);
+       if (!err) {
                pr_err("SlaveID=%d functionality check failed\n", sid);
                return err;
        }
        pr_info("TWL4030: TRY attach Slave %s on Adapter %s [%x]\n",
                                twl->client_name, adapter->name, err);
 
-       if ((err = i2c_attach_client(&twl->client))) {
+       err = i2c_attach_client(&twl->client);
+       if (err) {
                pr_err("Couldn't attach Slave %s on Adapter"
                       "%s [%x]\n", twl->client_name, adapter->name, err);
        } else {
        for (i = 0; i < TWL4030_NUM_SLAVES; i++) {
                /* Check if I need to hook on to this adapter or not */
                if (twl4030_modules[i].adapter_index == twl_i2c_adapter) {
-                       if ((ret = twl4030_detect_client(adapter, i)))
+                       ret = twl4030_detect_client(adapter, i);
+                       if (ret)
                                goto free_client;
                }
        }
        return 0;
 
 free_client:
-       pr_err("TWL_CLIENT(Idx=%d] registration failed[0x%x]\n",i,ret);
+       pr_err("TWL_CLIENT(Idx=%d] registration failed[0x%x]\n", i, ret);
 
        /* ignore current slave..it never got registered */
        i--;
 static int twl4030_detach_client(struct i2c_client *client)
 {
        int err;
-       if ((err = i2c_detach_client(client))) {
+       err = i2c_detach_client(client);
+       if (err) {
                pr_err("Client detach failed\n");
                return err;
        }
                             "twl4030 irq %d", irq);
        if (!thread)
                pr_err("%s: could not create twl4030 irq %d thread!\n",
-                      __FUNCTION__, irq);
+                      __func__, irq);
 
        return thread;
 }
        clk_put(osc);
 
        switch (rate) {
-               case 19200000 : ctrl = HFCLK_FREQ_19p2_MHZ; break;
-               case 26000000 : ctrl = HFCLK_FREQ_26_MHZ; break;
-               case 38400000 : ctrl = HFCLK_FREQ_38p4_MHZ; break;
+       case 19200000 : ctrl = HFCLK_FREQ_19p2_MHZ; break;
+       case 26000000 : ctrl = HFCLK_FREQ_26_MHZ; break;
+       case 38400000 : ctrl = HFCLK_FREQ_38p4_MHZ; break;
        }
 
        ctrl |= HIGH_PERF_SQ;
        set_irq_chained_handler(TWL4030_IRQNUM, do_twl4030_irq);
 
        res = power_companion_init();
-       if (res < 0) {
+       if (res < 0)
                pr_err("%s[%d][%d]\n", msg, res, __LINE__);
-       }
 }
 
 static int __init twl4030_init(void)
 {
-       int res;
-
-       if ((res = i2c_add_driver(&twl4030_driver))) {
-               printk(KERN_ERR "TWL4030: Driver registration failed \n");
-               return res;
-       }
-
-       pr_info(KERN_INFO "TWL4030: Driver registration complete.\n");
-
-       return 0;
+       return i2c_add_driver(&twl4030_driver);
 }
 
 static void __exit twl4030_exit(void)
 subsys_initcall(twl4030_init);
 module_exit(twl4030_exit);
 
-EXPORT_SYMBOL(twl4030_i2c_write_u8);
-EXPORT_SYMBOL(twl4030_i2c_read_u8);
-EXPORT_SYMBOL(twl4030_i2c_read);
-EXPORT_SYMBOL(twl4030_i2c_write);
-
 MODULE_AUTHOR("Texas Instruments, Inc.");
 MODULE_DESCRIPTION("I2C Core interface for TWL4030");
 MODULE_LICENSE("GPL");