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-rw-r--r--drivers/gpu/drm/radeon/r420.c5
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/gpu/drm/radeon/r420.c b/drivers/gpu/drm/radeon/r420.c
index 9b38956e91c..49a2fdc57d2 100644
--- a/drivers/gpu/drm/radeon/r420.c
+++ b/drivers/gpu/drm/radeon/r420.c
@@ -64,6 +64,11 @@ void r420_pipes_init(struct radeon_device *rdev)
/* GA_ENHANCE workaround TCL deadlock issue */
WREG32(0x4274, (1 << 0) | (1 << 1) | (1 << 2) | (1 << 3));
+ /* add idle wait as per freedesktop.org bug 24041 */
+ if (r100_gui_wait_for_idle(rdev)) {
+ printk(KERN_WARNING "Failed to wait GUI idle while "
+ "programming pipes. Bad things might happen.\n");
+ }
/* get max number of pipes */
gb_pipe_select = RREG32(0x402C);
num_pipes = ((gb_pipe_select >> 12) & 3) + 1;