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-rw-r--r--drivers/gpu/drm/radeon/r500_reg.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/gpu/drm/radeon/r500_reg.h b/drivers/gpu/drm/radeon/r500_reg.h
index 0cf2ad2a558..f5adf42a9d1 100644
--- a/drivers/gpu/drm/radeon/r500_reg.h
+++ b/drivers/gpu/drm/radeon/r500_reg.h
@@ -347,6 +347,7 @@
#define AVIVO_D1CRTC_CONTROL 0x6080
# define AVIVO_CRTC_EN (1 << 0)
+# define AVIVO_CRTC_DISP_READ_REQUEST_DISABLE (1 << 24)
#define AVIVO_D1CRTC_BLANK_CONTROL 0x6084
#define AVIVO_D1CRTC_INTERLACE_CONTROL 0x6088
#define AVIVO_D1CRTC_INTERLACE_STATUS 0x608c