commit 115d7975e66ab3e5f9c03d9660413a940517ddeb
author Ravishangar Kalyanam <rkalya@codeaurora.org> Tue Aug 09 12:52:14 2011 -0700
committer Bryan Huntsman <bryanh@codeaurora.org> Mon Oct 03 10:29:13 2011 -0700
tree 9b8f24e587c82ac4ef5d16d2b74dbd5c987608b8
parent 1cd286f73cd40e7d0381f1beb62753f34c8bf1ad

msm_fb: display: Add mb() before reading MDP histogram data

Signed-off-by: Ravishangar Kalyanam <rkalya@codeaurora.org>

drivers/video/msm/mdp4_util.c

diff --git a/drivers/video/msm/mdp4_util.c b/drivers/video/msm/mdp4_util.c
index 7a76b22..145b579 100644
--- a/drivers/video/msm/mdp4_util.c
+++ b/drivers/video/msm/mdp4_util.c
@@ -548,6 +548,7 @@
 		isr = inpdw(MDP_DMA_P_HIST_INTR_STATUS);
 		mask = inpdw(MDP_DMA_P_HIST_INTR_ENABLE);
 		outpdw(MDP_DMA_P_HIST_INTR_CLEAR, isr);
+		mb();
 		isr &= mask;
 		if (isr & INTR_HIST_DONE) {
 			if (mdp_rev <= MDP_REV_41) {