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#include <linux/config.h>
#define acornfb_valid_pixrate(var) (var->pixclock >= 39325 && var->pixclock <= 40119)
static inline void
acornfb_vidc20_find_rates(struct vidc_timing *vidc,
struct fb_var_screeninfo *var)
{
u_int bandwidth;
vidc->control |= VIDC20_CTRL_PIX_CK;
/* Calculate bandwidth */
bandwidth = var->pixclock * 8 / var->bits_per_pixel;
/* Encode bandwidth as VIDC20 setting */
if (bandwidth > 16667*2)
vidc->control |= VIDC20_CTRL_FIFO_16;
else if (bandwidth > 13333*2)
vidc->control |= VIDC20_CTRL_FIFO_20;
else if (bandwidth > 11111*2)
vidc->control |= VIDC20_CTRL_FIFO_24;
else
vidc->control |= VIDC20_CTRL_FIFO_28;
vidc->pll_ctl = 0x2020;
}
#ifdef CONFIG_CHRONTEL_7003
#define acornfb_default_control() VIDC20_CTRL_PIX_HCLK
#else
#define acornfb_default_control() VIDC20_CTRL_PIX_VCLK
#endif
#define acornfb_default_econtrol() VIDC20_ECTL_DAC | VIDC20_ECTL_REG(3) | VIDC20_ECTL_ECK
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