platform-drivers-x86 for v6.3-3

Highlights:
  -  Intel tpmi/vsec fixes
  -  think-lmi fixes
  -  2 other small fixes / hw-id additions
 
 The following is an automated git shortlog grouped by driver:
 
 platform/surface:
  -  aggregator: Add missing fwnode_handle_put()
 
 platform/x86 (gigabyte-wmi):
  -  Add support for A320M-S2H V2
 
 platform/x86/intel:
  -  tpmi: Revise the comment of intel_vsec_add_aux
  -  tpmi: Fix double free in tpmi_create_device()
  -  vsec: Fix a memory leak in intel_vsec_add_aux
 
 think-lmi:
  -  Add possible_values for ThinkStation
  -  only display possible_values if available
  -  use correct possible_values delimiters
  -  add missing type attribute
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Merge tag 'platform-drivers-x86-v6.3-3' of git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86

Pull x86 platform driver fixes from Hans de Goede:

 -  Intel tpmi/vsec fixes

 -  think-lmi fixes

 -  two other small fixes / hw-id additions

* tag 'platform-drivers-x86-v6.3-3' of git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86:
  platform/surface: aggregator: Add missing fwnode_handle_put()
  platform/x86: think-lmi: Add possible_values for ThinkStation
  platform/x86: think-lmi: only display possible_values if available
  platform/x86: think-lmi: use correct possible_values delimiters
  platform/x86: think-lmi: add missing type attribute
  platform/x86 (gigabyte-wmi): Add support for A320M-S2H V2
  platform/x86/intel: tpmi: Revise the comment of intel_vsec_add_aux
  platform/x86/intel: tpmi: Fix double free in tpmi_create_device()
  platform/x86/intel: vsec: Fix a memory leak in intel_vsec_add_aux

drivers/platform/surface/aggregator/bus.c

@@ -485,8 +485,10 @@ int __ssam_register_clients(struct device *parent, struct ssam_controller *ctrl,
 		 * device, so ignore it and continue with the next one.
 		 */
 		status = ssam_add_client_device(parent, ctrl, child);
-		if (status && status != -ENODEV)
+		if (status && status != -ENODEV) {
+			fwnode_handle_put(child);
 			goto err;
+		}
 	}
 
 	return 0;

drivers/platform/x86/gigabyte-wmi.c

@@ -140,6 +140,7 @@ static u8 gigabyte_wmi_detect_sensor_usability(struct wmi_device *wdev)
 	}}
 
 static const struct dmi_system_id gigabyte_wmi_known_working_platforms[] = {
+	DMI_EXACT_MATCH_GIGABYTE_BOARD_NAME("A320M-S2H V2-CF"),
 	DMI_EXACT_MATCH_GIGABYTE_BOARD_NAME("B450M DS3H-CF"),
 	DMI_EXACT_MATCH_GIGABYTE_BOARD_NAME("B450M DS3H WIFI-CF"),
 	DMI_EXACT_MATCH_GIGABYTE_BOARD_NAME("B450M S2H V2"),

drivers/platform/x86/intel/tpmi.c

@@ -203,7 +203,7 @@ static int tpmi_create_device(struct intel_tpmi_info *tpmi_info,
 	struct intel_vsec_device *feature_vsec_dev;
 	struct resource *res, *tmp;
 	const char *name;
-	int ret, i;
+	int i;
 
 	name = intel_tpmi_name(pfs->pfs_header.tpmi_id);
 	if (!name)
@@ -215,8 +215,8 @@ static int tpmi_create_device(struct intel_tpmi_info *tpmi_info,
 
 	feature_vsec_dev = kzalloc(sizeof(*feature_vsec_dev), GFP_KERNEL);
 	if (!feature_vsec_dev) {
-		ret = -ENOMEM;
-		goto free_res;
+		kfree(res);
+		return -ENOMEM;
 	}
 
 	snprintf(feature_id_name, sizeof(feature_id_name), "tpmi-%s", name);
@@ -239,20 +239,11 @@ static int tpmi_create_device(struct intel_tpmi_info *tpmi_info,
 	/*
 	 * intel_vsec_add_aux() is resource managed, no explicit
 	 * delete is required on error or on module unload.
-	 * feature_vsec_dev memory is also freed as part of device
-	 * delete.
+	 * feature_vsec_dev and res memory are also freed as part of
+	 * device deletion.
 	 */
-	ret = intel_vsec_add_aux(vsec_dev->pcidev, &vsec_dev->auxdev.dev,
-				 feature_vsec_dev, feature_id_name);
-	if (ret)
-		goto free_res;
-
-	return 0;
-
-free_res:
-	kfree(res);
-
-	return ret;
+	return intel_vsec_add_aux(vsec_dev->pcidev, &vsec_dev->auxdev.dev,
+				  feature_vsec_dev, feature_id_name);
 }
 
 static int tpmi_create_devices(struct intel_tpmi_info *tpmi_info)

drivers/platform/x86/intel/vsec.c

@@ -154,6 +154,7 @@ int intel_vsec_add_aux(struct pci_dev *pdev, struct device *parent,
 	ret = ida_alloc(intel_vsec_dev->ida, GFP_KERNEL);
 	mutex_unlock(&vsec_ida_lock);
 	if (ret < 0) {
+		kfree(intel_vsec_dev->resource);
 		kfree(intel_vsec_dev);
 		return ret;
 	}

drivers/platform/x86/think-lmi.c

@@ -941,12 +941,23 @@ static ssize_t possible_values_show(struct kobject *kobj, struct kobj_attribute
 {
 	struct tlmi_attr_setting *setting = to_tlmi_attr_setting(kobj);
 
-	if (!tlmi_priv.can_get_bios_selections)
-		return -EOPNOTSUPP;
-
 	return sysfs_emit(buf, "%s\n", setting->possible_values);
 }
 
+static ssize_t type_show(struct kobject *kobj, struct kobj_attribute *attr,
+		char *buf)
+{
+	struct tlmi_attr_setting *setting = to_tlmi_attr_setting(kobj);
+
+	if (setting->possible_values) {
+		/* Figure out what setting type is as BIOS does not return this */
+		if (strchr(setting->possible_values, ';'))
+			return sysfs_emit(buf, "enumeration\n");
+	}
+	/* Anything else is going to be a string */
+	return sysfs_emit(buf, "string\n");
+}
+
 static ssize_t current_value_store(struct kobject *kobj,
 		struct kobj_attribute *attr,
 		const char *buf, size_t count)
@@ -1036,14 +1047,30 @@ static struct kobj_attribute attr_possible_values = __ATTR_RO(possible_values);
 
 static struct kobj_attribute attr_current_val = __ATTR_RW_MODE(current_value, 0600);
 
+static struct kobj_attribute attr_type = __ATTR_RO(type);
+
+static umode_t attr_is_visible(struct kobject *kobj,
+					     struct attribute *attr, int n)
+{
+	struct tlmi_attr_setting *setting = to_tlmi_attr_setting(kobj);
+
+	/* We don't want to display possible_values attributes if not available */
+	if ((attr == &attr_possible_values.attr) && (!setting->possible_values))
+		return 0;
+
+	return attr->mode;
+}
+
 static struct attribute *tlmi_attrs[] = {
 	&attr_displ_name.attr,
 	&attr_current_val.attr,
 	&attr_possible_values.attr,
+	&attr_type.attr,
 	NULL
 };
 
 static const struct attribute_group tlmi_attr_group = {
+	.is_visible = attr_is_visible,
 	.attrs = tlmi_attrs,
 };
 
@@ -1423,7 +1450,34 @@ static int tlmi_analyze(void)
 			if (ret || !setting->possible_values)
 				pr_info("Error retrieving possible values for %d : %s\n",
 						i, setting->display_name);
+		} else {
+			/*
+			 * Older Thinkstations don't support the bios_selections API.
+			 * Instead they store this as a [Optional:Option1,Option2] section of the
+			 * name string.
+			 * Try and pull that out if it's available.
+			 */
+			char *item, *optstart, *optend;
+
+			if (!tlmi_setting(setting->index, &item, LENOVO_BIOS_SETTING_GUID)) {
+				optstart = strstr(item, "[Optional:");
+				if (optstart) {
+					optstart += strlen("[Optional:");
+					optend = strstr(optstart, "]");
+					if (optend)
+						setting->possible_values =
+							kstrndup(optstart, optend - optstart,
+									GFP_KERNEL);
+				}
+			}
 		}
+		/*
+		 * firmware-attributes requires that possible_values are separated by ';' but
+		 * Lenovo FW uses ','. Replace appropriately.
+		 */
+		if (setting->possible_values)
+			strreplace(setting->possible_values, ',', ';');
+
 		kobject_init(&setting->kobj, &tlmi_attr_setting_ktype);
 		tlmi_priv.setting[i] = setting;
 		kfree(item);