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authorDave Airlie <airlied@redhat.com>2009-08-16 20:19:51 -0400
committerDave Airlie <airlied@redhat.com>2009-08-19 00:11:32 -0400
commit6a719e05330ef19acd9392dbbfb95a774776dee5 (patch)
treeca8baa54860b452348cbc97c590a1809ed7dc910 /drivers/gpu
parentbf8e828b00a5b6a0fea16f452be578c060d57d64 (diff)
drm/kms/radeon: cleanup combios TV table like DDX.
The fallback case wasn't getting executed properly if there was no TV table, which my T42 M7 hasn't got. Signed-off-by: Dave Airlie <airlied@redhat.com>
Diffstat (limited to 'drivers/gpu')
-rw-r--r--drivers/gpu/drm/radeon/radeon_combios.c48
1 files changed, 19 insertions, 29 deletions
diff --git a/drivers/gpu/drm/radeon/radeon_combios.c b/drivers/gpu/drm/radeon/radeon_combios.c
index afc4db280b94..2a027e00762a 100644
--- a/drivers/gpu/drm/radeon/radeon_combios.c
+++ b/drivers/gpu/drm/radeon/radeon_combios.c
@@ -685,23 +685,15 @@ static const uint32_t default_tvdac_adj[CHIP_LAST] = {
685 0x00780000, /* rs480 */ 685 0x00780000, /* rs480 */
686}; 686};
687 687
688static struct radeon_encoder_tv_dac 688static void radeon_legacy_get_tv_dac_info_from_table(struct radeon_device *rdev,
689 *radeon_legacy_get_tv_dac_info_from_table(struct radeon_device *rdev) 689 struct radeon_encoder_tv_dac *tv_dac)
690{ 690{
691 struct radeon_encoder_tv_dac *tv_dac = NULL;
692
693 tv_dac = kzalloc(sizeof(struct radeon_encoder_tv_dac), GFP_KERNEL);
694
695 if (!tv_dac)
696 return NULL;
697
698 tv_dac->ps2_tvdac_adj = default_tvdac_adj[rdev->family]; 691 tv_dac->ps2_tvdac_adj = default_tvdac_adj[rdev->family];
699 if ((rdev->flags & RADEON_IS_MOBILITY) && (rdev->family == CHIP_RV250)) 692 if ((rdev->flags & RADEON_IS_MOBILITY) && (rdev->family == CHIP_RV250))
700 tv_dac->ps2_tvdac_adj = 0x00880000; 693 tv_dac->ps2_tvdac_adj = 0x00880000;
701 tv_dac->pal_tvdac_adj = tv_dac->ps2_tvdac_adj; 694 tv_dac->pal_tvdac_adj = tv_dac->ps2_tvdac_adj;
702 tv_dac->ntsc_tvdac_adj = tv_dac->ps2_tvdac_adj; 695 tv_dac->ntsc_tvdac_adj = tv_dac->ps2_tvdac_adj;
703 696 return;
704 return tv_dac;
705} 697}
706 698
707struct radeon_encoder_tv_dac *radeon_combios_get_tv_dac_info(struct 699struct radeon_encoder_tv_dac *radeon_combios_get_tv_dac_info(struct
@@ -713,19 +705,18 @@ struct radeon_encoder_tv_dac *radeon_combios_get_tv_dac_info(struct
713 uint16_t dac_info; 705 uint16_t dac_info;
714 uint8_t rev, bg, dac; 706 uint8_t rev, bg, dac;
715 struct radeon_encoder_tv_dac *tv_dac = NULL; 707 struct radeon_encoder_tv_dac *tv_dac = NULL;
708 int found = 0;
709
710 tv_dac = kzalloc(sizeof(struct radeon_encoder_tv_dac), GFP_KERNEL);
711 if (!tv_dac)
712 return NULL;
716 713
717 if (rdev->bios == NULL) 714 if (rdev->bios == NULL)
718 return radeon_legacy_get_tv_dac_info_from_table(rdev); 715 goto out;
719 716
720 /* first check TV table */ 717 /* first check TV table */
721 dac_info = combios_get_table_offset(dev, COMBIOS_TV_INFO_TABLE); 718 dac_info = combios_get_table_offset(dev, COMBIOS_TV_INFO_TABLE);
722 if (dac_info) { 719 if (dac_info) {
723 tv_dac =
724 kzalloc(sizeof(struct radeon_encoder_tv_dac), GFP_KERNEL);
725
726 if (!tv_dac)
727 return NULL;
728
729 rev = RBIOS8(dac_info + 0x3); 720 rev = RBIOS8(dac_info + 0x3);
730 if (rev > 4) { 721 if (rev > 4) {
731 bg = RBIOS8(dac_info + 0xc) & 0xf; 722 bg = RBIOS8(dac_info + 0xc) & 0xf;
@@ -739,6 +730,7 @@ struct radeon_encoder_tv_dac *radeon_combios_get_tv_dac_info(struct
739 bg = RBIOS8(dac_info + 0x10) & 0xf; 730 bg = RBIOS8(dac_info + 0x10) & 0xf;
740 dac = RBIOS8(dac_info + 0x11) & 0xf; 731 dac = RBIOS8(dac_info + 0x11) & 0xf;
741 tv_dac->ntsc_tvdac_adj = (bg << 16) | (dac << 20); 732 tv_dac->ntsc_tvdac_adj = (bg << 16) | (dac << 20);
733 found = 1;
742 } else if (rev > 1) { 734 } else if (rev > 1) {
743 bg = RBIOS8(dac_info + 0xc) & 0xf; 735 bg = RBIOS8(dac_info + 0xc) & 0xf;
744 dac = (RBIOS8(dac_info + 0xc) >> 4) & 0xf; 736 dac = (RBIOS8(dac_info + 0xc) >> 4) & 0xf;
@@ -751,22 +743,15 @@ struct radeon_encoder_tv_dac *radeon_combios_get_tv_dac_info(struct
751 bg = RBIOS8(dac_info + 0xe) & 0xf; 743 bg = RBIOS8(dac_info + 0xe) & 0xf;
752 dac = (RBIOS8(dac_info + 0xe) >> 4) & 0xf; 744 dac = (RBIOS8(dac_info + 0xe) >> 4) & 0xf;
753 tv_dac->ntsc_tvdac_adj = (bg << 16) | (dac << 20); 745 tv_dac->ntsc_tvdac_adj = (bg << 16) | (dac << 20);
746 found = 1;
754 } 747 }
755
756 tv_dac->tv_std = radeon_combios_get_tv_info(encoder); 748 tv_dac->tv_std = radeon_combios_get_tv_info(encoder);
757 749 }
758 } else { 750 if (!found) {
759 /* then check CRT table */ 751 /* then check CRT table */
760 dac_info = 752 dac_info =
761 combios_get_table_offset(dev, COMBIOS_CRT_INFO_TABLE); 753 combios_get_table_offset(dev, COMBIOS_CRT_INFO_TABLE);
762 if (dac_info) { 754 if (dac_info) {
763 tv_dac =
764 kzalloc(sizeof(struct radeon_encoder_tv_dac),
765 GFP_KERNEL);
766
767 if (!tv_dac)
768 return NULL;
769
770 rev = RBIOS8(dac_info) & 0x3; 755 rev = RBIOS8(dac_info) & 0x3;
771 if (rev < 2) { 756 if (rev < 2) {
772 bg = RBIOS8(dac_info + 0x3) & 0xf; 757 bg = RBIOS8(dac_info + 0x3) & 0xf;
@@ -775,6 +760,7 @@ struct radeon_encoder_tv_dac *radeon_combios_get_tv_dac_info(struct
775 (bg << 16) | (dac << 20); 760 (bg << 16) | (dac << 20);
776 tv_dac->pal_tvdac_adj = tv_dac->ps2_tvdac_adj; 761 tv_dac->pal_tvdac_adj = tv_dac->ps2_tvdac_adj;
777 tv_dac->ntsc_tvdac_adj = tv_dac->ps2_tvdac_adj; 762 tv_dac->ntsc_tvdac_adj = tv_dac->ps2_tvdac_adj;
763 found = 1;
778 } else { 764 } else {
779 bg = RBIOS8(dac_info + 0x4) & 0xf; 765 bg = RBIOS8(dac_info + 0x4) & 0xf;
780 dac = RBIOS8(dac_info + 0x5) & 0xf; 766 dac = RBIOS8(dac_info + 0x5) & 0xf;
@@ -782,13 +768,17 @@ struct radeon_encoder_tv_dac *radeon_combios_get_tv_dac_info(struct
782 (bg << 16) | (dac << 20); 768 (bg << 16) | (dac << 20);
783 tv_dac->pal_tvdac_adj = tv_dac->ps2_tvdac_adj; 769 tv_dac->pal_tvdac_adj = tv_dac->ps2_tvdac_adj;
784 tv_dac->ntsc_tvdac_adj = tv_dac->ps2_tvdac_adj; 770 tv_dac->ntsc_tvdac_adj = tv_dac->ps2_tvdac_adj;
771 found = 1;
785 } 772 }
786 } else { 773 } else {
787 DRM_INFO("No TV DAC info found in BIOS\n"); 774 DRM_INFO("No TV DAC info found in BIOS\n");
788 return radeon_legacy_get_tv_dac_info_from_table(rdev);
789 } 775 }
790 } 776 }
791 777
778out:
779 if (!found) /* fallback to defaults */
780 radeon_legacy_get_tv_dac_info_from_table(rdev, tv_dac);
781
792 return tv_dac; 782 return tv_dac;
793} 783}
794 784