drm/radeon/native: Send out the full AUX address

AUX addresses are 20 bits long. Send out the entire address instead of just the low 16 bits. Port of: drm/radeon/atom: Send out the full AUX address to radeon non-atom aux path Reviewed-by: Christian König <[email protected]> Signed-off-by: Alex Deucher <[email protected]> Cc: [email protected]
open-power · Aug 31, 2015 · 7040c39 · 7040c39
1 parent 3f8340c
commit 7040c39
Showing 1 changed file with 2 additions and 2 deletions.
diff --git a/drivers/gpu/drm/radeon/radeon_dp_auxch.c b/drivers/gpu/drm/radeon/radeon_dp_auxch.c
@@ -116,8 +116,8 @@ radeon_dp_aux_transfer_native(struct drm_dp_aux *aux, struct drm_dp_aux_msg *msg
 	       AUX_SW_WR_BYTES(bytes));
 
 	/* write the data header into the registers */
-	/* request, addres, msg size */
-	byte = (msg->request << 4);
+	/* request, address, msg size */
+	byte = (msg->request << 4) | ((msg->address >> 16) & 0xf);
 	WREG32(AUX_SW_DATA + aux_offset[instance],
 	       AUX_SW_DATA_MASK(byte) | AUX_SW_AUTOINCREMENT_DISABLE);