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-rw-r--r--drivers/platform/x86/amd/pmf/core.c5
-rw-r--r--drivers/platform/x86/amd/pmf/pmf.h2
2 files changed, 5 insertions, 2 deletions
diff --git a/drivers/platform/x86/amd/pmf/core.c b/drivers/platform/x86/amd/pmf/core.c
index feaa09f5b35a..a6bdde4f1c68 100644
--- a/drivers/platform/x86/amd/pmf/core.c
+++ b/drivers/platform/x86/amd/pmf/core.c
@@ -113,8 +113,9 @@ static void amd_pmf_dbgfs_unregister(struct amd_pmf_dev *dev)
static void amd_pmf_dbgfs_register(struct amd_pmf_dev *dev)
{
dev->dbgfs_dir = debugfs_create_dir("amd_pmf", NULL);
- debugfs_create_file("current_power_limits", 0644, dev->dbgfs_dir, dev,
- &current_power_limits_fops);
+ if (dev->pmf_if_version == PMF_IF_V1)
+ debugfs_create_file("current_power_limits", 0644, dev->dbgfs_dir, dev,
+ &current_power_limits_fops);
}
int amd_pmf_get_power_source(void)
diff --git a/drivers/platform/x86/amd/pmf/pmf.h b/drivers/platform/x86/amd/pmf/pmf.h
index 2f23ced7da66..51e31d008ef9 100644
--- a/drivers/platform/x86/amd/pmf/pmf.h
+++ b/drivers/platform/x86/amd/pmf/pmf.h
@@ -87,6 +87,8 @@ struct cookie_header {
#define TA_OUTPUT_RESERVED_MEM 906
#define MAX_OPERATION_PARAMS 4
+#define PMF_IF_V1 1
+
/* AMD PMF BIOS interfaces */
struct apmf_verify_interface {
u16 size;