From: Mark Yao <mark.yao@rock-chips.com>
Date: Thu, 30 Mar 2017 12:23:53 +0000 (+0800)
Subject: video/rockchip: rga2: use axi safe reset
X-Git-Tag: firefly_0821_release~174
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=e3656e494d8c9c2af801a70c68e39186033a079e;p=firefly-linux-kernel-4.4.55.git

video/rockchip: rga2: use axi safe reset

RGA2_SYS_CTRL bit[6] a safe reset, it would be ensure all
axi write/read operation into completion

Change-Id: I39a5a6a9f10883d355c428e9dbaa89778682c49b
Signed-off-by: Mark Yao <mark.yao@rock-chips.com>
---

diff --git a/drivers/video/rockchip/rga2/rga2_drv.c b/drivers/video/rockchip/rga2/rga2_drv.c
index 8b3b176263ee..936411d895cd 100644
--- a/drivers/video/rockchip/rga2/rga2_drv.c
+++ b/drivers/video/rockchip/rga2/rga2_drv.c
@@ -188,7 +188,7 @@ static void rga2_soft_reset(void)
 	u32 i;
 	u32 reg;
 
-	rga2_write((1 << 3) | (1 << 4), RGA2_SYS_CTRL); //RGA_SYS_CTRL
+	rga2_write((1 << 3) | (1 << 4) | (1 << 6), RGA2_SYS_CTRL);
 
 	for(i = 0; i < RGA2_RESET_TIMEOUT; i++)
 	{