i2c: msm: modify I2C msm driver code to use new clock APIs

Replace the existing clock APIs in I2C msm driver
with new APIs.

CRs-Fixed: 366705
Change-Id: I7661c6a9218f37f5cb694e1e3801daeef46fc74c
Signed-off-by: Kiran Gunda <kgunda@codeaurora.org>
diff --git a/drivers/i2c/busses/i2c-msm.c b/drivers/i2c/busses/i2c-msm.c
index b753fd0..4b48a69 100644
--- a/drivers/i2c/busses/i2c-msm.c
+++ b/drivers/i2c/busses/i2c-msm.c
@@ -636,7 +636,7 @@
 	spin_lock_init(&dev->lock);
 	platform_set_drvdata(pdev, dev);
 
-	clk_enable(clk);
+	clk_prepare_enable(clk);
 
 	if (pdata->rmutex) {
 		struct remote_mutex_id rmid;
@@ -697,7 +697,8 @@
 	/* Config GPIOs for primary and secondary lines */
 	pdata->msm_i2c_config_gpio(dev->adap_pri.nr, 1);
 	pdata->msm_i2c_config_gpio(dev->adap_aux.nr, 1);
-	clk_disable(dev->clk);
+	clk_disable_unprepare(dev->clk);
+	clk_prepare(dev->clk);
 	setup_timer(&dev->pwr_timer, msm_i2c_pwr_timer, (unsigned long) dev);
 
 	return 0;
@@ -706,7 +707,7 @@
 	i2c_del_adapter(&dev->adap_pri);
 	i2c_del_adapter(&dev->adap_aux);
 err_i2c_add_adapter_failed:
-	clk_disable(clk);
+	clk_disable_unprepare(clk);
 	iounmap(dev->base);
 err_ioremap_failed:
 	kfree(dev);
@@ -736,6 +737,7 @@
 	free_irq(dev->irq, dev);
 	i2c_del_adapter(&dev->adap_pri);
 	i2c_del_adapter(&dev->adap_aux);
+	clk_unprepare(dev->clk);
 	clk_put(dev->clk);
 	iounmap(dev->base);
 	kfree(dev);
@@ -759,6 +761,7 @@
 		del_timer_sync(&dev->pwr_timer);
 		if (dev->clk_state != 0)
 			msm_i2c_pwr_mgmt(dev, 0);
+		clk_unprepare(dev->clk);
 	}
 
 	return 0;
@@ -767,6 +770,7 @@
 static int msm_i2c_resume(struct platform_device *pdev)
 {
 	struct msm_i2c_dev *dev = platform_get_drvdata(pdev);
+	clk_prepare(dev->clk);
 	dev->suspended = 0;
 	return 0;
 }