Patrick Georgi submitted this change.
mb/google/kukui: fix screen scrolling on devices using anx7625
anx7625 enables MIPI receiver to check EOTP packet as default.
If MIPI_DSI_MODE_EOT_PACKET is not set in flags, soc dsi will not
send out EOTP packet and some panel models will display abnormal
such as scrolling all the time.
BUG=b:144824303
BRANCH=kukui
TEST=boot damu board, edp panel with anx7625 as bridge boots up
without scrolling.
Signed-off-by: Paul Ma <magf@bitland.corp-partner.google.com>
Change-Id: Iad651202bde2a40024af8c12153143ada2ce2439
Reviewed-on: https://review.coreboot.org/c/coreboot/+/41161
Reviewed-by: Yu-Ping Wu <yupingso@google.com>
Reviewed-by: Hung-Te Lin <hungte@chromium.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
---
M src/mainboard/google/kukui/mainboard.c
1 file changed, 2 insertions(+), 0 deletions(-)
diff --git a/src/mainboard/google/kukui/mainboard.c b/src/mainboard/google/kukui/mainboard.c
index bb36d90..efcd49e 100644
--- a/src/mainboard/google/kukui/mainboard.c
+++ b/src/mainboard/google/kukui/mainboard.c
@@ -154,6 +154,8 @@
u32 mipi_dsi_flags = (MIPI_DSI_MODE_VIDEO |
MIPI_DSI_MODE_VIDEO_SYNC_PULSE |
MIPI_DSI_MODE_LPM);
+ if (CONFIG(DRIVER_ANALOGIX_ANX7625))
+ mipi_dsi_flags |= MIPI_DSI_MODE_EOT_PACKET;
if (mtk_dsi_init(mipi_dsi_flags, MIPI_DSI_FMT_RGB888, 4, edid,
panel->s->init) < 0) {
printk(BIOS_ERR, "%s: Failed in DSI init.\n", __func__);
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