[PATCH 2/7][SRU][Noble] platform/x86/amd/pmf: Disable debugfs support for querying power thermals

[You-Sheng Yang]

From: Shyam Sundar S K <Shyam-sundar.S-k at amd.com>

BugLink: https://bugs.launchpad.net/bugs/2058330

The GET interface to receive the active power thermal information from
the PMFW has been deprecated. Hence drop the debugfs support from
version2 onwards.

Reviewed-by: Kuppuswamy Sathyanarayanan <sathyanarayanan.kuppuswamy at linux.intel.com>
Co-developed-by: Patil Rajesh Reddy <Patil.Reddy at amd.com>
Signed-off-by: Patil Rajesh Reddy <Patil.Reddy at amd.com>
Signed-off-by: Shyam Sundar S K <Shyam-sundar.S-k at amd.com>
Link: https://lore.kernel.org/r/20240306114415.3267603-3-Shyam-sundar.S-k@amd.com
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen at linux.intel.com>
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen at linux.intel.com>
(cherry picked from commit 233f78e11e1fa0387d1600875bef02a2d714f2e2)
Signed-off-by: You-Sheng Yang <vicamo.yang at canonical.com>
---
 drivers/platform/x86/amd/pmf/core.c | 5 +++--
 drivers/platform/x86/amd/pmf/pmf.h  | 2 ++
 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 4f734e049f4a..2230bc2b1f59 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 e51ac981af73..4364af72a7a3 100644
--- a/drivers/platform/x86/amd/pmf/pmf.h
+++ b/drivers/platform/x86/amd/pmf/pmf.h
@@ -83,6 +83,8 @@
 #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;
-- 
2.43.0