From: Xuhua Zhang <xuhua.zhang@amlogic.com>
Date: Tue, 8 Jan 2019 07:35:23 +0000 (+0800)
Subject: tvin: vdin: fix TXLX ATv channel switching crash [1/1]
X-Git-Tag: hardkernel-4.9.236-104~1899
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=f5abdd8c45fc2c23d7a2ab617697b8f4a5fd6984;p=platform%2Fkernel%2Flinux-amlogic.git

tvin: vdin: fix TXLX ATv channel switching crash [1/1]

PD#SWPL-3964

Problem:
ATv channel switching crash

Solution:
stop vdin, close afbc
need judge platform, there is not afbce on txlx

Verify:
verify by einstein

Change-Id: Ibcff1da47b9fdca7e1758b0d45e7d6800bfc8080
Signed-off-by: Xuhua Zhang <xuhua.zhang@amlogic.com>
---

diff --git a/drivers/amlogic/media/vin/tvin/vdin/vdin_drv.c b/drivers/amlogic/media/vin/tvin/vdin/vdin_drv.c
index 2e0b8e0..0804f87 100644
--- a/drivers/amlogic/media/vin/tvin/vdin/vdin_drv.c
+++ b/drivers/amlogic/media/vin/tvin/vdin/vdin_drv.c
@@ -654,11 +654,13 @@ void vdin_stop_dec(struct vdin_dev_s *devp)
 	disable_irq_nosync(devp->irq);
 	afbc_init_flag = 0;
 
-	while (++afbc_write_down_flag < afbc_write_down_test_times) {
-		if (vdin_afbce_read_writedown_flag() == 0)
-			usleep_range(5000, 5001);
-		else
-			break;
+	if (is_meson_tl1_cpu() && (devp->afbce_mode == 1)) {
+		while (++afbc_write_down_flag < afbc_write_down_test_times) {
+			if (vdin_afbce_read_writedown_flag() == 0)
+				usleep_range(5000, 5001);
+			else
+				break;
+		}
 	}
 
 	if (!(devp->parm.flag & TVIN_PARM_FLAG_CAP) &&