DRM/Radeon: Fix Load Detection on legacy primary DAC.
Egbert Eich [Wed, 24 Oct 2012 16:29:49 +0000 (18:29 +0200)]
commit 83325d072185899b706de2956170b246585aaec9 upstream.

An uninitialized variable led to broken load detection.

Signed-off-by: Egbert Eich <eich@suse.de>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/gpu/drm/radeon/radeon_legacy_encoders.c

index 1461e2c..d92f483 100644 (file)
@@ -650,6 +650,7 @@ static enum drm_connector_status radeon_legacy_primary_dac_detect(struct drm_enc
        tmp |= RADEON_DAC_RANGE_CNTL_PS2 | RADEON_DAC_CMP_EN;
        WREG32(RADEON_DAC_CNTL, tmp);
 
+       tmp = dac_macro_cntl;
        tmp &= ~(RADEON_DAC_PDWN_R |
                 RADEON_DAC_PDWN_G |
                 RADEON_DAC_PDWN_B);