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drm/radeon/kms/atom: bios scratch reg handling updates 

- Add missing DFP6 connection state handling
- crtc routing bits not used on DCE4+

Noticed by sylware on phoronix.

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
This commit is contained in:
Alex Deucher 2012-02-13 08:59:41 -05:00 committed by Dave Airlie
parent 40e8c73878
commit 6f9f8a6108
1 changed files with 17 additions and 0 deletions
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17
drivers/gpu/drm/radeon/radeon_atombios.c
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@ -2931,6 +2931,20 @@ radeon_atombios_connected_scratch_regs(struct drm_connector *connector,
bios_6_scratch &= ~ATOM_S6_ACC_REQ_DFP5;
}
}
if ((radeon_encoder->devices & ATOM_DEVICE_DFP6_SUPPORT) &&
(radeon_connector->devices & ATOM_DEVICE_DFP6_SUPPORT)) {
if (connected) {
DRM_DEBUG_KMS("DFP6 connected\n");
bios_0_scratch |= ATOM_S0_DFP6;
bios_3_scratch |= ATOM_S3_DFP6_ACTIVE;
bios_6_scratch |= ATOM_S6_ACC_REQ_DFP6;
} else {
DRM_DEBUG_KMS("DFP6 disconnected\n");
bios_0_scratch &= ~ATOM_S0_DFP6;
bios_3_scratch &= ~ATOM_S3_DFP6_ACTIVE;
bios_6_scratch &= ~ATOM_S6_ACC_REQ_DFP6;
}
}
if (rdev->family >= CHIP_R600) {
WREG32(R600_BIOS_0_SCRATCH, bios_0_scratch);
@ -2951,6 +2965,9 @@ radeon_atombios_encoder_crtc_scratch_regs(struct drm_encoder *encoder, int crtc)
struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder);
uint32_t bios_3_scratch;
if (ASIC_IS_DCE4(rdev))
return;
if (rdev->family >= CHIP_R600)
bios_3_scratch = RREG32(R600_BIOS_3_SCRATCH);
else