diff options
Diffstat (limited to 'drivers/video/via/hw.c')
| -rw-r--r-- | drivers/video/via/hw.c | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/drivers/video/via/hw.c b/drivers/video/via/hw.c index b0b02783b6ee..6cb3b5626f0d 100644 --- a/drivers/video/via/hw.c +++ b/drivers/video/via/hw.c @@ -360,6 +360,24 @@ static struct pll_map pll_value[] = { {208, 5, 2} } }; +/* according to VIA Technologies these values are based on experiment */ +static struct io_reg scaling_parameters[] = { + {VIACR, CR7A, 0xFF, 0x01}, /* LCD Scaling Parameter 1 */ + {VIACR, CR7B, 0xFF, 0x02}, /* LCD Scaling Parameter 2 */ + {VIACR, CR7C, 0xFF, 0x03}, /* LCD Scaling Parameter 3 */ + {VIACR, CR7D, 0xFF, 0x04}, /* LCD Scaling Parameter 4 */ + {VIACR, CR7E, 0xFF, 0x07}, /* LCD Scaling Parameter 5 */ + {VIACR, CR7F, 0xFF, 0x0A}, /* LCD Scaling Parameter 6 */ + {VIACR, CR80, 0xFF, 0x0D}, /* LCD Scaling Parameter 7 */ + {VIACR, CR81, 0xFF, 0x13}, /* LCD Scaling Parameter 8 */ + {VIACR, CR82, 0xFF, 0x16}, /* LCD Scaling Parameter 9 */ + {VIACR, CR83, 0xFF, 0x19}, /* LCD Scaling Parameter 10 */ + {VIACR, CR84, 0xFF, 0x1C}, /* LCD Scaling Parameter 11 */ + {VIACR, CR85, 0xFF, 0x1D}, /* LCD Scaling Parameter 12 */ + {VIACR, CR86, 0xFF, 0x1E}, /* LCD Scaling Parameter 13 */ + {VIACR, CR87, 0xFF, 0x1F}, /* LCD Scaling Parameter 14 */ +}; + static struct fifo_depth_select display_fifo_depth_reg = { /* IGA1 FIFO Depth_Select */ {IGA1_FIFO_DEPTH_SELECT_REG_NUM, {{SR17, 0, 7} } }, @@ -2419,6 +2437,7 @@ int viafb_setmode(struct VideoModeTable *vmode_tbl, int video_bpp, break; } + viafb_write_regx(scaling_parameters, ARRAY_SIZE(scaling_parameters)); device_off(); via_set_state(devices, VIA_STATE_OFF); |