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>

diff --git a/drivers/gpu/drm/radeon/radeon_asic.c b/drivers/gpu/drm/radeon/radeon_asic.c
index 9bd162f..b244962 100644 (file)
--- a/drivers/gpu/drm/radeon/radeon_asic.c
+++ b/drivers/gpu/drm/radeon/radeon_asic.c
@@ -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;
 }