Blackfin serial driver: use new GPIO API

Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Bryan Wu <bryan.wu@analog.com>

include/asm-blackfin/mach-bf548/bfin_serial_5xx.h

 #include <linux/serial.h>
 #include <asm/dma.h>
+#include <asm/portmux.h>
 
 #define NR_PORTS		4
 
@@ -143,50 +144,48 @@ struct bfin_serial_res bfin_serial_resource[] = {
 
 int nr_ports = ARRAY_SIZE(bfin_serial_resource);
 
+#define DRIVER_NAME "bfin-uart"
+
 static void bfin_serial_hw_init(struct bfin_serial_port *uart)
 {
 #ifdef CONFIG_SERIAL_BFIN_UART0
-	/* Enable UART0 RX and TX on pin 7 & 8 of PORT E */
-	bfin_write_PORTE_FER(0x180 | bfin_read_PORTE_FER());
-	bfin_write_PORTE_MUX(0x3C000 | bfin_read_PORTE_MUX());
+	peripheral_request(P_UART0_TX, DRIVER_NAME);
+	peripheral_request(P_UART0_RX, DRIVER_NAME);
 #endif
 
 #ifdef CONFIG_SERIAL_BFIN_UART1
-	/* Enable UART1 RX and TX on pin 0 & 1 of PORT H */
-	bfin_write_PORTH_FER(0x3 | bfin_read_PORTH_FER());
-	bfin_write_PORTH_MUX(~0xF & bfin_read_PORTH_MUX());
+	peripheral_request(P_UART1_TX, DRIVER_NAME);
+	peripheral_request(P_UART1_RX, DRIVER_NAME);
+
 #ifdef CONFIG_BFIN_UART1_CTSRTS
-	/* Enable UART1 RTS and CTS on pin 9 & 10 of PORT E */
-	bfin_write_PORTE_FER(0x600 | bfin_read_PORTE_FER());
-	bfin_write_PORTE_MUX(~0x3C0000 & bfin_read_PORTE_MUX());
+	peripheral_request(P_UART1_RTS, DRIVER_NAME);
+	peripheral_request(P_UART1_CTS DRIVER_NAME);
 #endif
 #endif
 
 #ifdef CONFIG_SERIAL_BFIN_UART2
-	/* Enable UART2 RX and TX on pin 4 & 5 of PORT B */
-	bfin_write_PORTB_FER(0x30 | bfin_read_PORTB_FER());
-	bfin_write_PORTB_MUX(~0xF00 & bfin_read_PORTB_MUX());
+	peripheral_request(P_UART2_TX, DRIVER_NAME);
+	peripheral_request(P_UART2_RX, DRIVER_NAME);
 #endif
 
 #ifdef CONFIG_SERIAL_BFIN_UART3
-	/* Enable UART3 RX and TX on pin 6 & 7 of PORT B */
-	bfin_write_PORTB_FER(0xC0 | bfin_read_PORTB_FER());
-	bfin_write_PORTB_MUX(~0xF000 | bfin_read_PORTB_MUX());
+	peripheral_request(P_UART3_TX, DRIVER_NAME);
+	peripheral_request(P_UART3_RX, DRIVER_NAME);
+
 #ifdef CONFIG_BFIN_UART3_CTSRTS
-	/* Enable UART3 RTS and CTS on pin 2 & 3 of PORT B */
-	bfin_write_PORTB_FER(0xC | bfin_read_PORTB_FER());
-	bfin_write_PORTB_MUX(~0xF0 | bfin_read_PORTB_MUX());
+	peripheral_request(P_UART3_RTS, DRIVER_NAME);
+	peripheral_request(P_UART3_CTS DRIVER_NAME);
 #endif
 #endif
 	SSYNC();
 #ifdef CONFIG_SERIAL_BFIN_CTSRTS
 	if (uart->cts_pin >= 0) {
-		gpio_request(uart->cts_pin, NULL);
+		gpio_request(uart->cts_pin, DRIVER_NAME);
 		gpio_direction_input(uart->cts_pin);
 	}
 
 	if (uart->rts_pin >= 0) {
-		gpio_request(uart->rts_pin, NULL);
+		gpio_request(uart->rts_pin, DRIVER_NAME);
 		gpio_direction_output(uart->rts_pin);
 	}
 #endif