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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/4432
Signed-off-by: John Crispin <blogic@openwrt.org>
This commit is contained in:
Kelvin Cheung 2012-10-23 05:17:01 +00:00 committed by John Crispin
parent 17ded0a89b
commit 4460764599
3 changed files with 7 additions and 9 deletions
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2
arch/mips/include/asm/mach-loongson1/platform.h
View File

@ -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 */

9
arch/mips/loongson1/common/platform.c
View File

@ -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);
}

5
arch/mips/loongson1/ls1b/board.c
View File

@ -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));