From 2787237dd52550b5d7e1dc3dabcf380126ff804c Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Ky=C3=B6sti=20M=C3=A4lkki?= <kyosti.malkki@gmail.com>
Date: Thu, 21 Jan 2021 16:05:26 +0200
Subject: ACPI: Add helpers for CBMEM_ID_POWER_STATE
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Create uniform logging for the (unlikely) case of a CBMEM
entry disappearing.

Change-Id: I7c5414a03d869423c8ae5192a990fde5f9582f2d
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/49817
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-by: Felix Held <felix-coreboot@felixheld.de>
---
 src/soc/intel/tigerlake/pmutil.c | 8 +++-----
 1 file changed, 3 insertions(+), 5 deletions(-)

(limited to 'src/soc/intel/tigerlake')

diff --git a/src/soc/intel/tigerlake/pmutil.c b/src/soc/intel/tigerlake/pmutil.c
index f2ff483af1..39fc36b46d 100644
--- a/src/soc/intel/tigerlake/pmutil.c
+++ b/src/soc/intel/tigerlake/pmutil.c
@@ -13,8 +13,8 @@
 
 #define __SIMPLE_DEVICE__
 
+#include <acpi/acpi_pm.h>
 #include <device/mmio.h>
-#include <cbmem.h>
 #include <device/device.h>
 #include <device/pci.h>
 #include <device/pci_def.h>
@@ -186,12 +186,10 @@ static int rtc_failed(uint32_t gen_pmcon_b)
 
 int soc_get_rtc_failed(void)
 {
-	const struct chipset_power_state *ps = cbmem_find(CBMEM_ID_POWER_STATE);
+	const struct chipset_power_state *ps;
 
-	if (!ps) {
-		printk(BIOS_ERR, "Could not find power state in cbmem, RTC init aborted\n");
+	if (acpi_pm_state_for_rtc(&ps) < 0)
 		return 1;
-	}
 
 	return rtc_failed(ps->gen_pmcon_b);
 }
-- 
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