CLOCK_CNTL_DATA    13 include/video/aty128.h #define CLOCK_CNTL_DATA				0x000c
CLOCK_CNTL_DATA   142 include/video/mach64.h #define CLOCK_CNTL_DATA			CLOCK_CNTL + 2
CLOCK_CNTL_DATA   307 include/video/radeon.h #define CLOCK_CNTL_DATA                        0x000C