platform/x86/amd/pmf: Propagate PMF-TA return codes

JIRA: https://issues.redhat.com/browse/RHEL-104142

commit 9ba93cb
Author: Shyam Sundar S K <Shyam-sundar.S-k@amd.com>
Date:   Wed Mar 5 10:28:41 2025 +0530

    platform/x86/amd/pmf: Propagate PMF-TA return codes

    In the amd_pmf_invoke_cmd_init() function within the PMF driver ensure
    that the actual result from the PMF-TA is returned rather than a generic
    EIO. This change allows for proper handling of errors originating from the
    PMF-TA.

    Reviewed-by: Mario Limonciello <mario.limonciello@amd.com>
    Co-developed-by: Patil Rajesh Reddy <Patil.Reddy@amd.com>
    Signed-off-by: Patil Rajesh Reddy <Patil.Reddy@amd.com>
    Signed-off-by: Shyam Sundar S K <Shyam-sundar.S-k@amd.com>
    Link: https://lore.kernel.org/r/20250305045842.4117767-1-Shyam-sundar.S-k@amd.com
    Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
    Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>

Signed-off-by: Steve Best <sbest@redhat.com>

Author: sfbest

drivers/platform/x86/amd/pmf/tee-if.c

@@ -323,7 +323,7 @@ static int amd_pmf_start_policy_engine(struct amd_pmf_dev *dev)
 	} else {
 		dev_err(dev->dev, "ta invoke cmd init failed err: %x\n", res);
 		dev->smart_pc_enabled = false;
-		return -EIO;
+		return res;
 	}
 
 	return 0;