diff options
Diffstat (limited to 'drivers/video/via')
| -rw-r--r-- | drivers/video/via/hw.c | 24 | ||||
| -rw-r--r-- | drivers/video/via/hw.h | 5 |
2 files changed, 26 insertions, 3 deletions
diff --git a/drivers/video/via/hw.c b/drivers/video/via/hw.c index 132d811..d6bbb0a 100644 --- a/drivers/video/via/hw.c +++ b/drivers/video/via/hw.c @@ -1151,6 +1151,24 @@ void via_set_state(u32 devices, u8 state) set_lvds2_state(state); } +void via_set_sync_polarity(u32 devices, u8 polarity) +{ + if (polarity & ~(VIA_HSYNC_NEGATIVE | VIA_VSYNC_NEGATIVE)) { + printk(KERN_WARNING "viafb: Unsupported polarity: %d\n", + polarity); + return; + } + + if (devices & VIA_CRT) + via_write_misc_reg_mask(polarity << 6, 0xC0); + if (devices & VIA_DVP1) + via_write_reg_mask(VIACR, 0x9B, polarity << 5, 0x60); + if (devices & VIA_LVDS1) + via_write_reg_mask(VIACR, 0x99, polarity << 5, 0x60); + if (devices & VIA_LVDS2) + via_write_reg_mask(VIACR, 0x97, polarity << 5, 0x60); +} + u32 via_parse_odev(char *input, char **end) { char *ptr = input; @@ -2026,10 +2044,10 @@ void viafb_fill_crtc_timing(struct crt_mode_table *crt_table, /* update polarity for CRT timing */ if (crt_table[index].h_sync_polarity == NEGATIVE) - polarity |= BIT6; + polarity |= VIA_HSYNC_NEGATIVE; if (crt_table[index].v_sync_polarity == NEGATIVE) - polarity |= BIT7; - via_write_misc_reg_mask(polarity, BIT6 | BIT7); + polarity |= VIA_VSYNC_NEGATIVE; + via_set_sync_polarity(VIA_CRT, polarity); if (set_iga == IGA1) { viafb_unlock_crt(); diff --git a/drivers/video/via/hw.h b/drivers/video/via/hw.h index b067cbb..ad6f9b1 100644 --- a/drivers/video/via/hw.h +++ b/drivers/video/via/hw.h @@ -47,6 +47,10 @@ #define VIA_STATE_SUSPEND 2 #define VIA_STATE_OFF 3 +/* VIA output device sync polarity */ +#define VIA_HSYNC_NEGATIVE 0x01 +#define VIA_VSYNC_NEGATIVE 0x02 + /*************************************************** * Definition IGA1 Design Method of CRTC Registers * ****************************************************/ @@ -912,6 +916,7 @@ void viafb_load_reg(int timing_value, int viafb_load_reg_num, int io_type); void via_set_source(u32 devices, u8 iga); void via_set_state(u32 devices, u8 state); +void via_set_sync_polarity(u32 devices, u8 polarity); u32 via_parse_odev(char *input, char **end); void via_odev_to_seq(struct seq_file *m, u32 odev); void init_ad9389(void); |