X-Git-Url: http://drtracing.org/?a=blobdiff_plain;f=drivers%2Fgpu%2Fdrm%2Fradeon%2Fradeon_combios.c;h=44198581ba9efedea1dcc59a5d2083b756e2cea2;hb=68b61a7fd21be9df23577d48643ba9e364758200;hp=2becdeda68a34ae4d94d8102f33d0d87fe6de959;hpb=9ddd3a31aedcdb55d5509b595c04b187041c8adb;p=deliverable%2Flinux.git diff --git a/drivers/gpu/drm/radeon/radeon_combios.c b/drivers/gpu/drm/radeon/radeon_combios.c index 2becdeda68a3..44198581ba9e 100644 --- a/drivers/gpu/drm/radeon/radeon_combios.c +++ b/drivers/gpu/drm/radeon/radeon_combios.c @@ -450,17 +450,17 @@ bool radeon_combios_check_hardcoded_edid(struct radeon_device *rdev) { int edid_info; struct edid *edid; + unsigned char *raw; edid_info = combios_get_table_offset(rdev->ddev, COMBIOS_HARDCODED_EDID_TABLE); if (!edid_info) return false; - edid = kmalloc(EDID_LENGTH * (DRM_MAX_EDID_EXT_NUM + 1), - GFP_KERNEL); + raw = rdev->bios + edid_info; + edid = kmalloc(EDID_LENGTH * (raw[0x7e] + 1), GFP_KERNEL); if (edid == NULL) return false; - memcpy((unsigned char *)edid, - (unsigned char *)(rdev->bios + edid_info), EDID_LENGTH); + memcpy((unsigned char *)edid, raw, EDID_LENGTH * (raw[0x7e] + 1)); if (!drm_edid_is_valid(edid)) { kfree(edid); @@ -760,7 +760,9 @@ struct radeon_encoder_primary_dac *radeon_combios_get_primary_dac_info(struct dac = RBIOS8(dac_info + 0x3) & 0xf; p_dac->ps2_pdac_adj = (bg << 8) | (dac); } - found = 1; + /* if the values are all zeros, use the table */ + if (p_dac->ps2_pdac_adj) + found = 1; } if (!found) /* fallback to defaults */ @@ -895,7 +897,9 @@ struct radeon_encoder_tv_dac *radeon_combios_get_tv_dac_info(struct bg = RBIOS8(dac_info + 0x10) & 0xf; dac = RBIOS8(dac_info + 0x11) & 0xf; tv_dac->ntsc_tvdac_adj = (bg << 16) | (dac << 20); - found = 1; + /* if the values are all zeros, use the table */ + if (tv_dac->ps2_tvdac_adj) + found = 1; } else if (rev > 1) { bg = RBIOS8(dac_info + 0xc) & 0xf; dac = (RBIOS8(dac_info + 0xc) >> 4) & 0xf; @@ -908,7 +912,9 @@ struct radeon_encoder_tv_dac *radeon_combios_get_tv_dac_info(struct bg = RBIOS8(dac_info + 0xe) & 0xf; dac = (RBIOS8(dac_info + 0xe) >> 4) & 0xf; tv_dac->ntsc_tvdac_adj = (bg << 16) | (dac << 20); - found = 1; + /* if the values are all zeros, use the table */ + if (tv_dac->ps2_tvdac_adj) + found = 1; } tv_dac->tv_std = radeon_combios_get_tv_info(rdev); } @@ -925,7 +931,9 @@ struct radeon_encoder_tv_dac *radeon_combios_get_tv_dac_info(struct (bg << 16) | (dac << 20); tv_dac->pal_tvdac_adj = tv_dac->ps2_tvdac_adj; tv_dac->ntsc_tvdac_adj = tv_dac->ps2_tvdac_adj; - found = 1; + /* if the values are all zeros, use the table */ + if (tv_dac->ps2_tvdac_adj) + found = 1; } else { bg = RBIOS8(dac_info + 0x4) & 0xf; dac = RBIOS8(dac_info + 0x5) & 0xf; @@ -933,7 +941,9 @@ struct radeon_encoder_tv_dac *radeon_combios_get_tv_dac_info(struct (bg << 16) | (dac << 20); tv_dac->pal_tvdac_adj = tv_dac->ps2_tvdac_adj; tv_dac->ntsc_tvdac_adj = tv_dac->ps2_tvdac_adj; - found = 1; + /* if the values are all zeros, use the table */ + if (tv_dac->ps2_tvdac_adj) + found = 1; } } else { DRM_INFO("No TV DAC info found in BIOS\n"); @@ -1103,18 +1113,20 @@ struct radeon_encoder_lvds *radeon_combios_get_lvds_info(struct radeon_encoder break; if ((RBIOS16(tmp) == lvds->native_mode.hdisplay) && - (RBIOS16(tmp + 2) == - lvds->native_mode.vdisplay)) { - lvds->native_mode.htotal = RBIOS16(tmp + 17) * 8; - lvds->native_mode.hsync_start = RBIOS16(tmp + 21) * 8; - lvds->native_mode.hsync_end = (RBIOS8(tmp + 23) + - RBIOS16(tmp + 21)) * 8; - - lvds->native_mode.vtotal = RBIOS16(tmp + 24); - lvds->native_mode.vsync_start = RBIOS16(tmp + 28) & 0x7ff; - lvds->native_mode.vsync_end = - ((RBIOS16(tmp + 28) & 0xf800) >> 11) + - (RBIOS16(tmp + 28) & 0x7ff); + (RBIOS16(tmp + 2) == lvds->native_mode.vdisplay)) { + lvds->native_mode.htotal = lvds->native_mode.hdisplay + + (RBIOS16(tmp + 17) - RBIOS16(tmp + 19)) * 8; + lvds->native_mode.hsync_start = lvds->native_mode.hdisplay + + (RBIOS16(tmp + 21) - RBIOS16(tmp + 19) - 1) * 8; + lvds->native_mode.hsync_end = lvds->native_mode.hsync_start + + (RBIOS8(tmp + 23) * 8); + + lvds->native_mode.vtotal = lvds->native_mode.vdisplay + + (RBIOS16(tmp + 24) - RBIOS16(tmp + 26)); + lvds->native_mode.vsync_start = lvds->native_mode.vdisplay + + ((RBIOS16(tmp + 28) & 0x7ff) - RBIOS16(tmp + 26)); + lvds->native_mode.vsync_end = lvds->native_mode.vsync_start + + ((RBIOS16(tmp + 28) & 0xf800) >> 11); lvds->native_mode.clock = RBIOS16(tmp + 9) * 10; lvds->native_mode.flags = 0;