[XS] Change in coreboot[main]: soc/intel/pantherlake: Add early shutdown notification hook

[Subrata Banik (Code Review)]

Subrata Banik has uploaded this change for review. ( https://review.coreboot.org/c/coreboot/+/86476?usp=email )

Change subject: soc/intel/pantherlake: Add early shutdown notification hook
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soc/intel/pantherlake: Add early shutdown notification hook

This commit adds a placeholder function
platform_display_early_shutdown_notification for displaying an early
shutdown notification (e.g., low battery warning) using uGOP.

This function will be implemented in a future commit.

This commit also enables the HAVE_ESOL_SUPPORT_FOR_LOW_BATTERY_INDICATOR
Kconfig option, which is required for displaying the VGA text message
during early shutdown.

BUG=b:339673254
TEST=Verified low battery boot event logging and controlled shutdown.

Change-Id: I45c0fb07b984fcde6209631612cb8b4a08ac2041
Signed-off-by: Subrata Banik 
---
M src/soc/intel/pantherlake/Kconfig
M src/soc/intel/pantherlake/romstage/fsp_params.c
2 files changed, 8 insertions(+), 0 deletions(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/76/86476/1

diff --git a/src/soc/intel/pantherlake/Kconfig b/src/soc/intel/pantherlake/Kconfig
index 5326020..9329845 100644
--- a/src/soc/intel/pantherlake/Kconfig
+++ b/src/soc/intel/pantherlake/Kconfig
@@ -21,6 +21,7 @@
    select FSPS_HAS_ARCH_UPD
    select GENERIC_GPIO_LIB
    select HAVE_DEBUG_RAM_SETUP
+	select HAVE_ESOL_SUPPORT_FOR_LOW_BATTERY_INDICATOR if CHROMEOS_ENABLE_ESOL
    select HAVE_FSP_GOP
    select HAVE_FSP_LOGO_SUPPORT if RUN_FSP_GOP
    select HAVE_HYPERTHREADING
diff --git a/src/soc/intel/pantherlake/romstage/fsp_params.c b/src/soc/intel/pantherlake/romstage/fsp_params.c
index 0c17d02..4df4dde 100644
--- a/src/soc/intel/pantherlake/romstage/fsp_params.c
+++ b/src/soc/intel/pantherlake/romstage/fsp_params.c
@@ -286,6 +286,13 @@
    	m_cfg->EnableFastVmode[i] = 0;
 }

+#if CONFIG(PLATFORM_HAS_EARLY_LOW_BATTERY_INDICATOR)
+void platform_display_early_shutdown_notification(void *arg)
+{
+	/* Placeholder to set VGA text message (using FSP-M UPDs) by calling FSP-uGOP */
+}
+#endif
+
 static void soc_memory_init_params(FSP_M_CONFIG *m_cfg,
    			   const struct soc_intel_pantherlake_config *config)
 {