From 29e4fff2ab5bfcd1f51a031af5352b2a0b596781 Mon Sep 17 00:00:00 2001
From: Dmitry Osipenko <digetx@gmail.com>
Date: Sun, 3 Oct 2021 02:34:47 +0300
Subject: drm/bridge: tc358768: Correct BTACNTRL1 programming
Git-commit: 43a1f1467cd4bcf248925fd7b3fdf49d73917443
Patch-mainline: v5.17-rc1
References: jsc#PED-1166 jsc#PED-1168 jsc#PED-1170 jsc#PED-1218 jsc#PED-1220 jsc#PED-1222 jsc#PED-1223 jsc#PED-1225
TXTAGOCNT and RXTASURECNT bitfields of BTACNTRL1 register are swapped in
the code, correct them. Driver doesn't implement low power mode for now,
so this change doesn't make a practical difference yet.
Tested-by: Andreas Westman Dorcsak <hedmoo@yahoo.com> # Asus TF700T
Tested-by: Maxim Schwalm <maxim.schwalm@gmail.com> #TF700T
Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
Reviewed-by: Robert Foss <robert.foss@linaro.org>
Signed-off-by: Robert Foss <robert.foss@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20211002233447.1105-6-digetx@gmail.com
Acked-by: Patrik Jakobsson <pjakobsson@suse.de>
---
drivers/gpu/drm/bridge/tc358768.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/bridge/tc358768.c b/drivers/gpu/drm/bridge/tc358768.c
index cfceba5ef3b8..fd585bf925fe 100644
--- a/drivers/gpu/drm/bridge/tc358768.c
+++ b/drivers/gpu/drm/bridge/tc358768.c
@@ -790,7 +790,7 @@ static void tc358768_bridge_pre_enable(struct drm_bridge *bridge)
val = tc358768_ns_to_cnt(val, dsibclk_nsk) - 1;
val2 = tc358768_ns_to_cnt(tc358768_to_ns((lptxcnt + 1) * dsibclk_nsk),
dsibclk_nsk) - 2;
- val |= val2 << 16;
+ val = val << 16 | val2;
dev_dbg(priv->dev, "BTACNTRL1: 0x%x\n", val);
tc358768_write(priv, TC358768_BTACNTRL1, val);
--
2.38.1