From: Mario Limonciello <mario.limonciello@xxxxxxx>
The s2idle mmio quirk uses a scratch register in the FCH.
Adjust the code to clarify that.
Signed-off-by: Mario Limonciello <mario.limonciello@xxxxxxx>
---
v4:
* Use fch.h instead
---
arch/x86/include/asm/amd/fch.h | 1 +
drivers/platform/x86/amd/pmc/pmc-quirks.c | 3 ++-
2 files changed, 3 insertions(+), 1 deletion(-)
diff --git a/arch/x86/include/asm/amd/fch.h b/arch/x86/include/asm/amd/fch.h
index a5fd91ff92df3..9b32e8a03193e 100644
--- a/arch/x86/include/asm/amd/fch.h
+++ b/arch/x86/include/asm/amd/fch.h
@@ -8,5 +8,6 @@
/* register offsets from PM base */
#define FCH_PM_DECODEEN 0x00
#define FCH_PM_DECODEEN_SMBUS0SEL GENMASK(20, 19)
+#define FCH_PM_SCRATCH 0x80
#endif
diff --git a/drivers/platform/x86/amd/pmc/pmc-quirks.c b/drivers/platform/x86/amd/pmc/pmc-quirks.c
index b4f49720c87f6..3c680d2029f62 100644
--- a/drivers/platform/x86/amd/pmc/pmc-quirks.c
+++ b/drivers/platform/x86/amd/pmc/pmc-quirks.c
@@ -8,6 +8,7 @@
* Author: Mario Limonciello <mario.limonciello@xxxxxxx>
*/
+#include <asm/amd/fch.h>
#include <linux/dmi.h>
#include <linux/io.h>
#include <linux/ioport.h>
@@ -20,7 +21,7 @@ struct quirk_entry {
};
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 = {
--
2.43.0
