diff options
Diffstat (limited to 'drivers/gpu/drm/nouveau/nouveau_bios.c')
| -rw-r--r-- | drivers/gpu/drm/nouveau/nouveau_bios.c | 44 |
1 files changed, 17 insertions, 27 deletions
diff --git a/drivers/gpu/drm/nouveau/nouveau_bios.c b/drivers/gpu/drm/nouveau/nouveau_bios.c index b5a9336a2e88..075eb894648f 100644 --- a/drivers/gpu/drm/nouveau/nouveau_bios.c +++ b/drivers/gpu/drm/nouveau/nouveau_bios.c @@ -3198,7 +3198,6 @@ static int run_lvds_table(struct drm_device *dev, struct dcb_entry *dcbent, int struct nvbios *bios = &dev_priv->vbios; unsigned int outputset = (dcbent->or == 4) ? 1 : 0; uint16_t scriptptr = 0, clktable; - uint8_t clktableptr = 0; /* * For now we assume version 3.0 table - g80 support will need some @@ -3217,26 +3216,29 @@ static int run_lvds_table(struct drm_device *dev, struct dcb_entry *dcbent, int scriptptr = ROM16(bios->data[bios->fp.lvdsmanufacturerpointer + 11 + outputset * 2]); break; case LVDS_RESET: + clktable = bios->fp.lvdsmanufacturerpointer + 15; + if (dcbent->or == 4) + clktable += 8; + if (dcbent->lvdsconf.use_straps_for_mode) { if (bios->fp.dual_link) - clktableptr += 2; - if (bios->fp.BITbit1) - clktableptr++; + clktable += 4; + if (bios->fp.if_is_24bit) + clktable += 2; } else { /* using EDID */ - uint8_t fallback = bios->data[bios->fp.lvdsmanufacturerpointer + 4]; - int fallbackcmpval = (dcbent->or == 4) ? 4 : 1; + int cmpval_24bit = (dcbent->or == 4) ? 4 : 1; if (bios->fp.dual_link) { - clktableptr += 2; - fallbackcmpval *= 2; + clktable += 4; + cmpval_24bit <<= 1; } - if (fallbackcmpval & fallback) - clktableptr++; + + if (bios->fp.strapless_is_24bit & cmpval_24bit) + clktable += 2; } - /* adding outputset * 8 may not be correct */ - clktable = ROM16(bios->data[bios->fp.lvdsmanufacturerpointer + 15 + clktableptr * 2 + outputset * 8]); + clktable = ROM16(bios->data[clktable]); if (!clktable) { NV_ERROR(dev, "Pixel clock comparison table not found\n"); return -ENOENT; @@ -3638,31 +3640,19 @@ int nouveau_bios_parse_lvds_table(struct drm_device *dev, int pxclk, bool *dl, b *if_is_24bit = bios->data[lvdsofs] & 16; break; case 0x30: - /* - * My money would be on there being a 24 bit interface bit in - * this table, but I have no example of a laptop bios with a - * 24 bit panel to confirm that. Hence we shout loudly if any - * bit other than bit 0 is set (I've not even seen bit 1) - */ - if (bios->data[lvdsofs] > 1) - NV_ERROR(dev, - "You have a very unusual laptop display; please report it\n"); + case 0x40: /* * No sign of the "power off for reset" or "reset for panel * on" bits, but it's safer to assume we should */ bios->fp.power_off_for_reset = true; bios->fp.reset_after_pclk_change = true; + /* * It's ok lvdsofs is wrong for nv4x edid case; dual_link is - * over-written, and BITbit1 isn't used + * over-written, and if_is_24bit isn't used */ bios->fp.dual_link = bios->data[lvdsofs] & 1; - bios->fp.BITbit1 = bios->data[lvdsofs] & 2; - bios->fp.duallink_transition_clk = ROM16(bios->data[bios->fp.lvdsmanufacturerpointer + 5]) * 10; - break; - case 0x40: - bios->fp.dual_link = bios->data[lvdsofs] & 1; bios->fp.if_is_24bit = bios->data[lvdsofs] & 2; bios->fp.strapless_is_24bit = bios->data[bios->fp.lvdsmanufacturerpointer + 4]; bios->fp.duallink_transition_clk = ROM16(bios->data[bios->fp.lvdsmanufacturerpointer + 5]) * 10; |