From: Marek Vasut <marex@denx.de>
Date: Sun, 16 Oct 2022 02:35:56 +0200
Subject: [PATCH] drm/bridge: tc358767: Set default CLRSIPO count
References: bsc#1012628
Patch-mainline: 6.2.3
Git-commit: 01338bb82fed40a6a234c2b36a92367c8671adf0

[ Upstream commit 01338bb82fed40a6a234c2b36a92367c8671adf0 ]

The current CLRSIPO count is still marginal and does not work with high
DSI clock rates in burst mode. Increase it further to allow the DSI link
to work at up to 1Gbps lane speed. This returns the counts to defaults
as provided by datasheet.

Fixes: ea6490b02240b ("drm/bridge: tc358767: increase CLRSIPO count")
Signed-off-by: Marek Vasut <marex@denx.de>
Acked-by: Maxime Ripard <maxime@cerno.tech>
Link: https://patchwork.freedesktop.org/patch/msgid/20221016003556.406441-1-marex@denx.de
Signed-off-by: Sasha Levin <sashal@kernel.org>
Signed-off-by: Jiri Slaby <jslaby@suse.cz>
---
 drivers/gpu/drm/bridge/tc358767.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/gpu/drm/bridge/tc358767.c b/drivers/gpu/drm/bridge/tc358767.c
index 2a58eb27..b9b68108 100644
--- a/drivers/gpu/drm/bridge/tc358767.c
+++ b/drivers/gpu/drm/bridge/tc358767.c
@@ -1264,10 +1264,10 @@ static int tc_dsi_rx_enable(struct tc_data *tc)
 	u32 value;
 	int ret;
 
-	regmap_write(tc->regmap, PPI_D0S_CLRSIPOCOUNT, 5);
-	regmap_write(tc->regmap, PPI_D1S_CLRSIPOCOUNT, 5);
-	regmap_write(tc->regmap, PPI_D2S_CLRSIPOCOUNT, 5);
-	regmap_write(tc->regmap, PPI_D3S_CLRSIPOCOUNT, 5);
+	regmap_write(tc->regmap, PPI_D0S_CLRSIPOCOUNT, 25);
+	regmap_write(tc->regmap, PPI_D1S_CLRSIPOCOUNT, 25);
+	regmap_write(tc->regmap, PPI_D2S_CLRSIPOCOUNT, 25);
+	regmap_write(tc->regmap, PPI_D3S_CLRSIPOCOUNT, 25);
 	regmap_write(tc->regmap, PPI_D0S_ATMR, 0);
 	regmap_write(tc->regmap, PPI_D1S_ATMR, 0);
 	regmap_write(tc->regmap, PPI_TX_RX_TA, TTA_GET | TTA_SURE);
-- 
2.35.3