projects / GitHub / mt8127 / android_kernel_alcatel_ttab.git / blame
| Commit | Line | Data |
|---|---|---|
| 1da177e4 LT |
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 |