MIPS: Loongson1B: improve ls1x_serial_setup()

Improve ls1x_serial_setup().
Signed-off-by: Kelvin Cheung <keguang.zhang@gmail.com>
Patchwork: http://patchwork.linux-mips.org/patch/4432Signed-off-by: John Crispin <blogic@openwrt.org>

arch/mips/include/asm/mach-loongson1/platform.h

@@ -19,6 +19,6 @@ extern struct platform_device ls1x_ehci_device;
 extern struct platform_device ls1x_rtc_device;
 
 extern void __init ls1x_clk_init(void);
-void ls1x_serial_setup(void);
+extern void __init ls1x_serial_setup(struct platform_device *pdev);
 
 #endif /* __ASM_MACH_LOONGSON1_PLATFORM_H */

arch/mips/loongson1/common/platform.c

@@ -42,16 +42,17 @@ struct platform_device ls1x_uart_device = {
 	},
 };
 
-void __init ls1x_serial_setup(void)
+void __init ls1x_serial_setup(struct platform_device *pdev)
 {
 	struct clk *clk;
 	struct plat_serial8250_port *p;
 
-	clk = clk_get(NULL, "dc");
+	clk = clk_get(NULL, pdev->name);
 	if (IS_ERR(clk))
-		panic("unable to get dc clock, err=%ld", PTR_ERR(clk));
+		panic("unable to get %s clock, err=%ld",
+			pdev->name, PTR_ERR(clk));
 
-	for (p = ls1x_serial8250_port; p->flags != 0; ++p)
+	for (p = pdev->dev.platform_data; p->flags != 0; ++p)
 		p->uartclk = clk_get_rate(clk);
 }
 

arch/mips/loongson1/ls1b/board.c

@@ -9,9 +9,6 @@
 
 #include <platform.h>
 
-#include <linux/serial_8250.h>
-#include <loongson1.h>
-
 static struct platform_device *ls1b_platform_devices[] __initdata = {
 	&ls1x_uart_device,
 	&ls1x_eth0_device,
@@ -23,7 +20,7 @@ static int __init ls1b_platform_init(void)
 {
 	int err;
 
-	ls1x_serial_setup();
+	ls1x_serial_setup(&ls1x_uart_device);
 
 	err = platform_add_devices(ls1b_platform_devices,
 				   ARRAY_SIZE(ls1b_platform_devices));