From f3b8adbe1911f66fd3cab1aaa74f0f66b7ceda25 Mon Sep 17 00:00:00 2001
From: Andrey Gusakov <andrey.gusakov@cogentembedded.com>
Date: Tue, 7 Nov 2017 19:56:21 +0300
Subject: [PATCH] drm/bridge: tc358767: fix DP0_MISC register set
Git-commit: f3b8adbe1911f66fd3cab1aaa74f0f66b7ceda25
Patch-mainline: v4.15-rc2
References: bsc#1051510
Remove shift from TU_SIZE_RECOMMENDED define as it used to
calculate max_tu_symbols.
Acked-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Andrey Gusakov <andrey.gusakov@cogentembedded.com>
Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
Link: https://patchwork.freedesktop.org/patch/msgid/1510073785-16108-4-git-send-email-andrey.gusakov@cogentembedded.com
Acked-by: Takashi Iwai <tiwai@suse.de>
---
drivers/gpu/drm/bridge/tc358767.c | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)
--- a/drivers/gpu/drm/bridge/tc358767.c
+++ b/drivers/gpu/drm/bridge/tc358767.c
@@ -97,7 +97,7 @@
#define DP0_ACTIVEVAL 0x0650
#define DP0_SYNCVAL 0x0654
#define DP0_MISC 0x0658
-#define TU_SIZE_RECOMMENDED (0x3f << 16) /* LSCLK cycles per TU */
+#define TU_SIZE_RECOMMENDED (63) /* LSCLK cycles per TU */
#define BPC_6 (0 << 5)
#define BPC_8 (1 << 5)
@@ -716,7 +716,8 @@ static int tc_set_video_mode(struct tc_d
* Must be less than tu_size.
*/
max_tu_symbol = TU_SIZE_RECOMMENDED - 1;
- tc_write(DP0_MISC, (max_tu_symbol << 23) | TU_SIZE_RECOMMENDED | BPC_8);
+ tc_write(DP0_MISC, (max_tu_symbol << 23) | (TU_SIZE_RECOMMENDED << 16) |
+ BPC_8);
return 0;
err: