From a02500b8b3a1e52dac6b7c9f0e26a4756460a475 Mon Sep 17 00:00:00 2001
From: Hareesh Gundu <hareeshg@codeaurora.org>
Date: Tue, 25 Jul 2017 13:03:27 +0530
Subject: [PATCH] msm: kgsl: Disable VPC all flat shading optimization for A5XX

Set ALLFLATOPTDIS bit in A5XX_VPC_DBG_ECO_CNTL register to
disable VPC all flat shading optimization. ALLFLATOPTDIS is
a hardware chicken bit value needs to be set one, to avoid
UI rendering corruption.

Change-Id: I39b5ad098daacbb1c3b0fc93963d82d477f70cc1
Signed-off-by: Hareesh Gundu <hareeshg@codeaurora.org>
---
 drivers/gpu/msm/adreno_a5xx.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/gpu/msm/adreno_a5xx.c b/drivers/gpu/msm/adreno_a5xx.c
index 0715022be6e3..5d4c49bbec4f 100644
--- a/drivers/gpu/msm/adreno_a5xx.c
+++ b/drivers/gpu/msm/adreno_a5xx.c
@@ -2069,6 +2069,9 @@ static void a5xx_start(struct adreno_device *adreno_dev)
 
 	}
 
+	/* Disable All flat shading optimization */
+	kgsl_regrmw(device, A5XX_VPC_DBG_ECO_CNTL, 0, 0x1 << 10);
+
 	/*
 	 * VPC corner case with local memory load kill leads to corrupt
 	 * internal state. Normal Disable does not work for all a5x chips.