tty: serial: msm: Fix style warnings relating to printk()

fixed below checkpatch.pl warning:

WARNING: Prefer [subsystem eg: netdev]_err([subsystem]dev, ... then dev_err(dev, ... then pr_err(...  to printk(KERN_ERR ...

WARNING: Prefer [subsystem eg: netdev]_info([subsystem]dev, ... then dev_info(dev, ... then pr_info(...  to printk(KERN_INFO ...
Signed-off-by: Kiran Padwal <kiran.padwal@smartplayin.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/tty/serial/msm_serial.c

@@ -677,7 +677,7 @@ static void msm_power(struct uart_port *port, unsigned int state,
 		clk_disable_unprepare(msm_port->pclk);
 		break;
 	default:
-		printk(KERN_ERR "msm_serial: Unknown PM state %d\n", state);
+		pr_err("msm_serial: Unknown PM state %d\n", state);
 	}
 }
 
@@ -957,7 +957,7 @@ static int __init msm_console_setup(struct console *co, char *options)
 		msm_write(port, UART_CR_TX_ENABLE, UART_CR);
 	}
 
-	printk(KERN_INFO "msm_serial: console setup on port #%d\n", port->line);
+	pr_info("msm_serial: console setup on port #%d\n", port->line);
 
 	return uart_set_options(port, co, baud, parity, bits, flow);
 }
@@ -1012,7 +1012,7 @@ static int msm_serial_probe(struct platform_device *pdev)
 	if (unlikely(pdev->id < 0 || pdev->id >= UART_NR))
 		return -ENXIO;
 
-	printk(KERN_INFO "msm_serial: detected port #%d\n", pdev->id);
+	dev_info(&pdev->dev, "msm_serial: detected port #%d\n", pdev->id);
 
 	port = get_port_from_line(pdev->id);
 	port->dev = &pdev->dev;
@@ -1037,8 +1037,7 @@ static int msm_serial_probe(struct platform_device *pdev)
 	}
 
 	port->uartclk = clk_get_rate(msm_port->clk);
-	printk(KERN_INFO "uartclk = %d\n", port->uartclk);
-
+	dev_info(&pdev->dev, "uartclk = %d\n", port->uartclk);
 
 	resource = platform_get_resource(pdev, IORESOURCE_MEM, 0);
 	if (unlikely(!resource))
@@ -1092,7 +1091,7 @@ static int __init msm_serial_init(void)
 	if (unlikely(ret))
 		uart_unregister_driver(&msm_uart_driver);
 
-	printk(KERN_INFO "msm_serial: driver initialized\n");
+	pr_info("msm_serial: driver initialized\n");
 
 	return ret;
 }