From: Andrzej Hajda <a.hajda@samsung.com>
Date: Tue, 6 Dec 2016 12:43:42 +0000 (+0100)
Subject: drm/bridge/sii8620: fix disconnect sequence
X-Git-Tag: submit/tizen/20161215.014354~10
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=refs%2Fchanges%2F93%2F102893%2F3;p=platform%2Fkernel%2Flinux-exynos.git

drm/bridge/sii8620: fix disconnect sequence

The patch allows to avoid rare cases when discovery fails.

Change-Id: I29094f719f8a2ec23a74b0c7981bf80e9a6200d3
Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
---

diff --git a/drivers/gpu/drm/bridge/sil-sii8620.c b/drivers/gpu/drm/bridge/sil-sii8620.c
index 36ea0d0d2d33..46fb89d20ccb 100644
--- a/drivers/gpu/drm/bridge/sil-sii8620.c
+++ b/drivers/gpu/drm/bridge/sil-sii8620.c
@@ -1279,10 +1279,12 @@ static void sii8620_disconnect(struct sii8620 *ctx)
 {
 	sii8620_disable_gen2_write_burst(ctx);
 	sii8620_stop_video(ctx);
-	msleep(50);
+	msleep(100);
 	sii8620_cbus_reset(ctx);
 	sii8620_set_mode(ctx, CM_DISCONNECTED);
 	sii8620_write_seq_static(ctx,
+		REG_TX_ZONE_CTL1, 0,
+		REG_MHL_PLL_CTL0, 0x07,
 		REG_COC_CTL0, 0x40,
 		REG_CBUS3_CNVT, 0x84,
 		REG_COC_CTL14, 0x00,