Martin L Roth has submitted this change. ( https://review.coreboot.org/c/coreboot/+/73411 )
Change subject: mb/google/geralt: Add mtcmos bus protection for display ......................................................................
mb/google/geralt: Add mtcmos bus protection for display
Enable bus protection for display to avoid bus hang and incomplete bus transaction.
BUG=b:264204465 TEST=test firmware and kernel display pass for MIPI panel on geralt.
Change-Id: Iac61a69f2b84966dd468442daaa59d83eec775aa Signed-off-by: Liju-Clr Chen liju-clr.chen@mediatek.com Signed-off-by: jason-ch chen Jason-ch.Chen@mediatek.com Reviewed-on: https://review.coreboot.org/c/coreboot/+/73411 Reviewed-by: Rex-BC Chen rex-bc.chen@mediatek.com Reviewed-by: Yidi Lin yidilin@google.com Tested-by: build bot (Jenkins) no-reply@coreboot.org Reviewed-by: Yu-Ping Wu yupingso@google.com --- M src/mainboard/google/geralt/display.c 1 file changed, 23 insertions(+), 0 deletions(-)
Approvals: build bot (Jenkins): Verified Yu-Ping Wu: Looks good to me, approved Yidi Lin: Looks good to me, but someone else must approve Rex-BC Chen: Looks good to me, but someone else must approve
diff --git a/src/mainboard/google/geralt/display.c b/src/mainboard/google/geralt/display.c index 396d6e0..bbdd808 100644 --- a/src/mainboard/google/geralt/display.c +++ b/src/mainboard/google/geralt/display.c @@ -27,6 +27,7 @@ printk(BIOS_INFO, "%s: Starting display initialization\n", __func__);
mtcmos_display_power_on(); + mtcmos_protect_display_bus();
panel->configure_panel_backlight(); panel->power_on();