From 2527e3f7edfa5fa5b25b6b3ddcf1b700af4d5fc8 Mon Sep 17 00:00:00 2001 From: Subrata Banik Date: Tue, 5 Sep 2023 18:51:23 +0000 Subject: soc/intel/meteorlake: Update LidStatus UPD dynamically This patch ensures that the LidStatus UPD is passed a dynamic value, rather than always passing 1 (CONFIG_RUN_FSP_GOP enabled) for FSP 2.0 devices. Problem statement: * FSP-S GFX PEIM initializes the on-board display (eDP) even when the LID is physically closed, because LidStatus is always set to 1. * FSP-S skips external display initialization even when the LID is closed. Solution: * FSP-S GFX PEIM module understands the presence of an external display if LidStatus is not set, and tries to probe the other display endpoint. * Statically passing LidStatus as always enabled (aka 1) does not illustrate the exact device scenarios, so this patch updates LidStatus dynamically by reading the EC memory map offset. BUG=b:299137940 TEST=Able to build and boot google/rex to redirect the display using external HDMI monitor while LID is closed. Change-Id: I7d7b678227a6c8e32114de069af8455b8c1aa058 Signed-off-by: Subrata Banik Reviewed-on: https://review.coreboot.org/c/coreboot/+/77685 Tested-by: build bot (Jenkins) Reviewed-by: Eric Lai --- src/soc/intel/meteorlake/fsp_params.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) (limited to 'src') diff --git a/src/soc/intel/meteorlake/fsp_params.c b/src/soc/intel/meteorlake/fsp_params.c index 7a7a2e60c2..17d7ad0fc1 100644 --- a/src/soc/intel/meteorlake/fsp_params.c +++ b/src/soc/intel/meteorlake/fsp_params.c @@ -1,6 +1,7 @@ /* SPDX-License-Identifier: GPL-2.0-only */ #include +#include #include #include #include @@ -411,7 +412,7 @@ static void fill_fsps_igd_params(FSP_S_CONFIG *s_cfg, /* Check if IGD is present and fill Graphics init param accordingly */ s_cfg->PeiGraphicsPeimInit = CONFIG(RUN_FSP_GOP) && is_devfn_enabled(PCI_DEVFN_IGD); - s_cfg->LidStatus = CONFIG(RUN_FSP_GOP); + s_cfg->LidStatus = CONFIG(VBOOT_LID_SWITCH) ? get_lid_switch() : CONFIG(RUN_FSP_GOP); s_cfg->PavpEnable = CONFIG(PAVP); } -- cgit v1.2.3