1. 根目录:
2. arch
3. arm
4. mach-w90x900
5. include
6. mach
7. clkdev.h

#ifndef __ASM_MACH_CLKDEV_H
#define __ASM_MACH_CLKDEV_H

#define __clk_get(clk) ({ 1; })
#define __clk_put(clk) do { } while (0)

#endif