diff --git a/[refs] b/[refs]
index 0a0e36cb0111..a8524a75f33a 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: ef63062716415d6e271815872b6c6654ffa9ac26
+refs/heads/master: 23115b0592bde5da249fcbdad7714c1f96a8e5f5
diff --git a/trunk/drivers/gpu/drm/radeon/atom.c b/trunk/drivers/gpu/drm/radeon/atom.c
index 901befe03da2..d67c42555ab9 100644
--- a/trunk/drivers/gpu/drm/radeon/atom.c
+++ b/trunk/drivers/gpu/drm/radeon/atom.c
@@ -107,6 +107,7 @@ static uint32_t atom_iio_execute(struct atom_context *ctx, int base,
 			base += 3;
 			break;
 		case ATOM_IIO_WRITE:
+			(void)ctx->card->reg_read(ctx->card, CU16(base + 1));
 			ctx->card->reg_write(ctx->card, CU16(base + 1), temp);
 			base += 3;
 			break;