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Commit 2cf3a4fc authored by Alex Deucher's avatar Alex Deucher
Browse files

drm/radeon: don't check crtcs in card_posted() on cards without DCE 



Skip checking crtcs in hardware without them.  Avoids checking
non-existent hardware.

Signed-off-by: default avatarAlex Deucher <alexander.deucher@amd.com>
parent 09fb8bd1

drivers/gpu/drm/radeon/radeon_device.c

+4 −0
Original line number Diff line number Diff line
@@ -471,6 +471,9 @@ bool radeon_card_posted(struct radeon_device *rdev) 
	    rdev->pdev->subsystem_vendor == PCI_VENDOR_ID_APPLE)

		return false;



	if (ASIC_IS_NODCE(rdev))

		goto check_memsize;



	/* first check CRTCs */

	if (ASIC_IS_DCE4(rdev)) {

		reg = RREG32(EVERGREEN_CRTC_CONTROL + EVERGREEN_CRTC0_REGISTER_OFFSET) |
@@ -499,6 +502,7 @@ bool radeon_card_posted(struct radeon_device *rdev) 
		}

	}



check_memsize:

	/* then check MEM_SIZE, in case the crtcs are off */

	if (rdev->family >= CHIP_R600)

		reg = RREG32(R600_CONFIG_MEMSIZE);