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drm/radeon/kms: fix num crtcs for Cedar and Caicos 

Only support 4 rather than 6.

Signed-off-by: Alex Deucher <alexdeucher@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
This commit is contained in:
Alex Deucher 2011-06-16 18:14:22 +00:00 committed by Dave Airlie
parent 826c7e4147
commit ba7e05e958
1 changed files with 19 additions and 12 deletions
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31
drivers/gpu/drm/radeon/radeon_asic.c
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@ -938,6 +938,13 @@ static struct radeon_asic cayman_asic = {
int radeon_asic_init(struct radeon_device *rdev)
{
radeon_register_accessor_init(rdev);
/* set the number of crtcs */
if (rdev->flags & RADEON_SINGLE_CRTC)
rdev->num_crtc = 1;
else
rdev->num_crtc = 2;
switch (rdev->family) {
case CHIP_R100:
case CHIP_RV100:
@ -1017,6 +1024,11 @@ int radeon_asic_init(struct radeon_device *rdev)
case CHIP_JUNIPER:
case CHIP_CYPRESS:
case CHIP_HEMLOCK:
/* set num crtcs */
if (rdev->family == CHIP_CEDAR)
rdev->num_crtc = 4;
else
rdev->num_crtc = 6;
rdev->asic = &evergreen_asic;
break;
case CHIP_PALM:
@ -1027,10 +1039,17 @@ int radeon_asic_init(struct radeon_device *rdev)
case CHIP_BARTS:
case CHIP_TURKS:
case CHIP_CAICOS:
/* set num crtcs */
if (rdev->family == CHIP_CAICOS)
rdev->num_crtc = 4;
else
rdev->num_crtc = 6;
rdev->asic = &btc_asic;
break;
case CHIP_CAYMAN:
rdev->asic = &cayman_asic;
/* set num crtcs */
rdev->num_crtc = 6;
break;
default:
/* FIXME: not supported yet */
@ -1042,18 +1061,6 @@ int radeon_asic_init(struct radeon_device *rdev)
rdev->asic->set_memory_clock = NULL;
}
/* set the number of crtcs */
if (rdev->flags & RADEON_SINGLE_CRTC)
rdev->num_crtc = 1;
else {
if (ASIC_IS_DCE41(rdev))
rdev->num_crtc = 2;
else if (ASIC_IS_DCE4(rdev))
rdev->num_crtc = 6;
else
rdev->num_crtc = 2;
}
return 0;
}