1#include <linux/config.h> 2#define acornfb_valid_pixrate(rate) (rate >= 39325 && rate <= 40119) 3 4static inline void 5acornfb_vidc20_find_rates(struct vidc_timing *vidc, 6 struct fb_var_screeninfo *var) 7{ 8 u_int bandwidth; 9 10 vidc->control |= VIDC20_CTRL_PIX_CK; 11 12 /* Calculate bandwidth */ 13 bandwidth = var->pixclock * 8 / var->bits_per_pixel; 14 15 /* Encode bandwidth as VIDC20 setting */ 16 if (bandwidth > 16667*2) 17 vidc->control |= VIDC20_CTRL_FIFO_16; 18 else if (bandwidth > 13333*2) 19 vidc->control |= VIDC20_CTRL_FIFO_20; 20 else if (bandwidth > 11111*2) 21 vidc->control |= VIDC20_CTRL_FIFO_24; 22 else 23 vidc->control |= VIDC20_CTRL_FIFO_28; 24 25 vidc->pll_ctl = 0x2020; 26} 27 28#ifdef CONFIG_CHRONTEL_7003 29#define acornfb_default_control() VIDC20_CTRL_PIX_HCLK 30#else 31#define acornfb_default_control() VIDC20_CTRL_PIX_VCLK 32#endif 33 34#define acornfb_default_econtrol() VIDC20_ECTL_DAC | VIDC20_ECTL_REG(3) | VIDC20_ECTL_ECK 35