diff mbox series

[v3,3/4] platform/x86/amd: pmc: use FCH_PM_BASE definition

Message ID 20250410200202.2974062-4-superm1@kernel.org (mailing list archive)
State New
Headers show
Series AMD Zen debugging documentation | expand

Commit Message

Mario Limonciello April 10, 2025, 8:02 p.m. UTC 
From: Mario Limonciello <mario.limonciello@amd.com>

The s2idle mmio quirk uses a scratch register in the FCH.
Adjust the code to clarify that.

Signed-off-by: Mario Limonciello <mario.limonciello@amd.com>
---
 drivers/platform/x86/amd/pmc/pmc-quirks.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)
diff mbox series

Patch

diff --git a/drivers/platform/x86/amd/pmc/pmc-quirks.c b/drivers/platform/x86/amd/pmc/pmc-quirks.c
index b4f49720c87f6..9d817209e407f 100644
--- a/drivers/platform/x86/amd/pmc/pmc-quirks.c
+++ b/drivers/platform/x86/amd/pmc/pmc-quirks.c
@@ -8,19 +8,22 @@ 
  * Author: Mario Limonciello <mario.limonciello@amd.com>
  */
 
+#include <asm/amd_node.h>
 #include <linux/dmi.h>
 #include <linux/io.h>
 #include <linux/ioport.h>
 
 #include "pmc.h"
 
+#define FCH_PM_SCRATCH	0x80
+
 struct quirk_entry {
 	u32 s2idle_bug_mmio;
 	bool spurious_8042;
 };
 
 static struct quirk_entry quirk_s2idle_bug = {
-	.s2idle_bug_mmio = 0xfed80380,
+	.s2idle_bug_mmio = FCH_PM_BASE + FCH_PM_SCRATCH,
 };
 
 static struct quirk_entry quirk_spurious_8042 = {