Don't include linux/config.h from anywhere else in include/
[linux-2.6.git] / include / asm-arm / arch-cl7500 / acornfb.h
1 #define acornfb_valid_pixrate(var) (var->pixclock >= 39325 && var->pixclock <= 40119)
2
3 static inline void
4 acornfb_vidc20_find_rates(struct vidc_timing *vidc,
5                           struct fb_var_screeninfo *var)
6 {
7         u_int bandwidth;
8   
9         vidc->control |= VIDC20_CTRL_PIX_CK;
10
11         /* Calculate bandwidth */
12         bandwidth = var->pixclock * 8 / var->bits_per_pixel;
13
14         /* Encode bandwidth as VIDC20 setting */
15         if (bandwidth > 16667*2)
16                 vidc->control |= VIDC20_CTRL_FIFO_16;
17         else if (bandwidth > 13333*2)
18                 vidc->control |= VIDC20_CTRL_FIFO_20;
19         else if (bandwidth > 11111*2)
20                 vidc->control |= VIDC20_CTRL_FIFO_24;
21         else
22                 vidc->control |= VIDC20_CTRL_FIFO_28;
23
24         vidc->pll_ctl  = 0x2020;
25 }
26
27 #ifdef CONFIG_CHRONTEL_7003
28 #define acornfb_default_control()       VIDC20_CTRL_PIX_HCLK
29 #else
30 #define acornfb_default_control()       VIDC20_CTRL_PIX_VCLK
31 #endif
32
33 #define acornfb_default_econtrol()      VIDC20_ECTL_DAC | VIDC20_ECTL_REG(3) | VIDC20_ECTL_ECK