amdgpu/pm: Disable managing hwmon sysfs attributes for ONEVF mode

This patch prohibits performing of set commands on all hwmon attributes
through sysfs in ONEVF mode.
Signed-off-by: NDanijel Slivka <danijel.slivka@amd.com>
Acked-by: NHarish Kasiviswanathan <Harish.Kasiviswanathan@amd.com>
Reviewed-by: NHarish Kasiviswanathan <Harish.Kasiviswanathan@amd.com>
Signed-off-by: NAlex Deucher <alexander.deucher@amd.com>

drivers/gpu/drm/amd/pm/amdgpu_pm.c

@@ -3182,6 +3182,10 @@ static umode_t hwmon_attributes_visible(struct kobject *kobj,
 	if (amdgpu_sriov_vf(adev) && !amdgpu_sriov_is_pp_one_vf(adev))
 		return 0;
 
+	/* under pp one vf mode manage of hwmon attributes is not supported */
+	if (amdgpu_sriov_is_pp_one_vf(adev))
+		effective_mode &= ~S_IWUSR;
+
 	/* Skip fan attributes if fan is not present */
 	if (adev->pm.no_fan && (attr == &sensor_dev_attr_pwm1.dev_attr.attr ||
 	    attr == &sensor_dev_attr_pwm1_enable.dev_attr.attr ||