[PATCH AUTOSEL for 4.14 082/100] drm/bridge: tc358767: fix DP0_MISC register set

From: Sasha Levin
Date: Tue Jan 23 2018 - 23:48:40 EST


From: Andrey Gusakov <andrey.gusakov@xxxxxxxxxxxxxxxxxx>

[ Upstream commit f3b8adbe1911f66fd3cab1aaa74f0f66b7ceda25 ]

Remove shift from TU_SIZE_RECOMMENDED define as it used to
calculate max_tu_symbols.

Acked-by: Philipp Zabel <p.zabel@xxxxxxxxxxxxxx>
Signed-off-by: Andrey Gusakov <andrey.gusakov@xxxxxxxxxxxxxxxxxx>
Signed-off-by: Andrzej Hajda <a.hajda@xxxxxxxxxxx>
Link: https://patchwork.freedesktop.org/patch/msgid/1510073785-16108-4-git-send-email-andrey.gusakov@xxxxxxxxxxxxxxxxxx
Signed-off-by: Sasha Levin <alexander.levin@xxxxxxxxxxxxx>
---
drivers/gpu/drm/bridge/tc358767.c | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/bridge/tc358767.c b/drivers/gpu/drm/bridge/tc358767.c
index e571b5e29ae7..7334cb2121a3 100644
--- 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_data *tc, struct drm_display_mode *mode)
* 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:
--
2.11.0