Merge tag 'asoc-v3.9-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into for-linus

ASoC: Updates for v3.9

A few updates, more than I'd like, fixing some relatively small issues
but mostly driver specific ones.  Nothing wildly exciting so if it
doesn't make v3.9 it won't be the end of the world but it'd be nice.

1 files changed, 44 insertions, 41 deletions

diff --git a/drivers/acpi/pci_root.c b/drivers/acpi/pci_root.c
index 0ac546d5e53f..6ae5e440436e 100644
--- a/drivers/acpi/pci_root.c
+++ b/drivers/acpi/pci_root.c
@@ -415,7 +415,6 @@ static int acpi_pci_root_add(struct acpi_device *device,
 	struct acpi_pci_root *root;
 	struct acpi_pci_driver *driver;
 	u32 flags, base_flags;
-	bool is_osc_granted = false;
 
 	root = kzalloc(sizeof(struct acpi_pci_root), GFP_KERNEL);
 	if (!root)
@@ -476,6 +475,30 @@ static int acpi_pci_root_add(struct acpi_device *device,
 	flags = base_flags = OSC_PCI_SEGMENT_GROUPS_SUPPORT;
 	acpi_pci_osc_support(root, flags);
 
+	/*
+	 * TBD: Need PCI interface for enumeration/configuration of roots.
+	 */
+
+	mutex_lock(&acpi_pci_root_lock);
+	list_add_tail(&root->node, &acpi_pci_roots);
+	mutex_unlock(&acpi_pci_root_lock);
+
+	/*
+	 * Scan the Root Bridge
+	 * --------------------
+	 * Must do this prior to any attempt to bind the root device, as the
+	 * PCI namespace does not get created until this call is made (and
+	 * thus the root bridge's pci_dev does not exist).
+	 */
+	root->bus = pci_acpi_scan_root(root);
+	if (!root->bus) {
+		printk(KERN_ERR PREFIX
+			    "Bus %04x:%02x not present in PCI namespace\n",
+			    root->segment, (unsigned int)root->secondary.start);
+		result = -ENODEV;
+		goto out_del_root;
+	}
+
 	/* Indicate support for various _OSC capabilities. */
 	if (pci_ext_cfg_avail())
 		flags |= OSC_EXT_PCI_CONFIG_SUPPORT;
@@ -494,6 +517,7 @@ static int acpi_pci_root_add(struct acpi_device *device,
 			flags = base_flags;
 		}
 	}
+
 	if (!pcie_ports_disabled
 	    && (flags & ACPI_PCIE_REQ_SUPPORT) == ACPI_PCIE_REQ_SUPPORT) {
 		flags = OSC_PCI_EXPRESS_CAP_STRUCTURE_CONTROL
@@ -514,54 +538,28 @@ static int acpi_pci_root_add(struct acpi_device *device,
 		status = acpi_pci_osc_control_set(device->handle, &flags,
 				       OSC_PCI_EXPRESS_CAP_STRUCTURE_CONTROL);
 		if (ACPI_SUCCESS(status)) {
-			is_osc_granted = true;
 			dev_info(&device->dev,
 				"ACPI _OSC control (0x%02x) granted\n", flags);
+			if (acpi_gbl_FADT.boot_flags & ACPI_FADT_NO_ASPM) {
+				/*
+				 * We have ASPM control, but the FADT indicates
+				 * that it's unsupported. Clear it.
+				 */
+				pcie_clear_aspm(root->bus);
+			}
 		} else {
-			is_osc_granted = false;
 			dev_info(&device->dev,
 				"ACPI _OSC request failed (%s), "
 				"returned control mask: 0x%02x\n",
 				acpi_format_exception(status), flags);
+			pr_info("ACPI _OSC control for PCIe not granted, "
+				"disabling ASPM\n");
+			pcie_no_aspm();
 		}
 	} else {
 		dev_info(&device->dev,
-			"Unable to request _OSC control "
-			"(_OSC support mask: 0x%02x)\n", flags);
-	}
-
-	/*
-	 * TBD: Need PCI interface for enumeration/configuration of roots.
-	 */
-
-	mutex_lock(&acpi_pci_root_lock);
-	list_add_tail(&root->node, &acpi_pci_roots);
-	mutex_unlock(&acpi_pci_root_lock);
-
-	/*
-	 * Scan the Root Bridge
-	 * --------------------
-	 * Must do this prior to any attempt to bind the root device, as the
-	 * PCI namespace does not get created until this call is made (and 
-	 * thus the root bridge's pci_dev does not exist).
-	 */
-	root->bus = pci_acpi_scan_root(root);
-	if (!root->bus) {
-		printk(KERN_ERR PREFIX
-			    "Bus %04x:%02x not present in PCI namespace\n",
-			    root->segment, (unsigned int)root->secondary.start);
-		result = -ENODEV;
-		goto out_del_root;
-	}
-
-	/* ASPM setting */
-	if (is_osc_granted) {
-		if (acpi_gbl_FADT.boot_flags & ACPI_FADT_NO_ASPM)
-			pcie_clear_aspm(root->bus);
-	} else {
-		pr_info("ACPI _OSC control for PCIe not granted, "
-			"disabling ASPM\n");
-		pcie_no_aspm();
+			 "Unable to request _OSC control "
+			 "(_OSC support mask: 0x%02x)\n", flags);
 	}
 
 	pci_acpi_add_bus_pm_notifier(device, root->bus);
@@ -646,6 +644,7 @@ static void handle_root_bridge_insertion(acpi_handle handle)
 
 static void handle_root_bridge_removal(struct acpi_device *device)
 {
+	acpi_status status;
 	struct acpi_eject_event *ej_event;
 
 	ej_event = kmalloc(sizeof(*ej_event), GFP_KERNEL);
@@ -661,7 +660,9 @@ static void handle_root_bridge_removal(struct acpi_device *device)
 	ej_event->device = device;
 	ej_event->event = ACPI_NOTIFY_EJECT_REQUEST;
 
-	acpi_bus_hot_remove_device(ej_event);
+	status = acpi_os_hotplug_execute(acpi_bus_hot_remove_device, ej_event);
+	if (ACPI_FAILURE(status))
+		kfree(ej_event);
 }
 
 static void _handle_hotplug_event_root(struct work_struct *work)
@@ -676,8 +677,9 @@ static void _handle_hotplug_event_root(struct work_struct *work)
 	handle = hp_work->handle;
 	type = hp_work->type;
 
-	root = acpi_pci_find_root(handle);
+	acpi_scan_lock_acquire();
 
+	root = acpi_pci_find_root(handle);
 	acpi_get_name(handle, ACPI_FULL_PATHNAME, &buffer);
 
 	switch (type) {
@@ -711,6 +713,7 @@ static void _handle_hotplug_event_root(struct work_struct *work)
 		break;
 	}
 
+	acpi_scan_lock_release();
 	kfree(hp_work); /* allocated in handle_hotplug_event_bridge */
 	kfree(buffer.pointer);
 }