From 814bfc792c7e45ce086415de115075d714739b21 Mon Sep 17 00:00:00 2001
From: Sukumar Ghorai <sukumar.ghorai@intel.com>
Date: Sat, 7 Oct 2023 23:21:47 -0700
Subject: soc/intel/mtl: Set slp-s0 counter frequency

System sleep time (SLP_S0 signal asserted) is measured in ticks, for
Meteor Lake soc in 122us (i.e. ~8197Hz) granularity/ticks.

Change-Id: I1e95cd69e941d4d72d5c36a07660ca07ee2499ba
Signed-off-by: Sukumar Ghorai <sukumar.ghorai@intel.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/78277
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Kapil Porwal <kapilporwal@google.com>
Reviewed-by: Subrata Banik <subratabanik@google.com>
---
 src/soc/intel/meteorlake/Kconfig | 6 ++++++
 1 file changed, 6 insertions(+)

(limited to 'src/soc/intel/meteorlake/Kconfig')

diff --git a/src/soc/intel/meteorlake/Kconfig b/src/soc/intel/meteorlake/Kconfig
index b1a1cadf73..968d1a1d6b 100644
--- a/src/soc/intel/meteorlake/Kconfig
+++ b/src/soc/intel/meteorlake/Kconfig
@@ -447,4 +447,10 @@ config SOC_INTEL_CSE_FW_PARTITION_CMOS_OFFSET
 	int
 	default 161
 
+config ACPI_SOC_INTEL_SLP_S0_FREQ_HZ
+	hex
+	default 0x2005
+	help
+	  slp_s0_residency granularity in 122us ticks (i.e. ~8.2KHz) in Meteor Lake.
+
 endif
-- 
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