pm: cpupower: bindings: Add test to confirm cpu state is disabled

JIRA: https://issues.redhat.com/browse/RHEL-91191

Upstream Status: git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git

commit b6a2dbf
Author: John B. Wyatt IV <jwyatt@redhat.com>
Date:   Mon Sep 30 19:21:55 2024 -0400

    pm: cpupower: bindings: Add test to confirm cpu state is disabled

    Add a simple test to confirm and print out the cpu state.

    Signed-off-by: "John B. Wyatt IV" <jwyatt@redhat.com>
    Signed-off-by: "John B. Wyatt IV" <sageofredondo@gmail.com>
    Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>

Signed-off-by: John B. Wyatt IV <jwyatt@redhat.com>

Author: John B. Wyatt IV

tools/power/cpupower/bindings/python/test_raw_pylibcpupower.py

@@ -31,6 +31,22 @@
     case _:
         print(f"Not documented: {cstate_disabled}")
 
+"""
+Test cstate is disabled
+"""
+is_cstate_disabled = p.cpuidle_is_state_disabled(0, 0)
+
+match is_cstate_disabled:
+    case 1:
+        print(f"CPU is disabled")
+    case 0:
+        print(f"CPU is enabled")
+    case -1:
+        print(f"Idlestate not available")
+    case -2:
+        print(f"Disabling is not supported by kernel")
+    case _:
+        print(f"Not documented: {is_cstate_disabled}")
 
 # Pointer example