4 files changed, 73 insertions, 20 deletions

diff --git a/drivers/bus/fsl-mc/dprc-driver.c b/drivers/bus/fsl-mc/dprc-driver.c
index 189bff2115a8..2a473c09bc33 100644
--- a/drivers/bus/fsl-mc/dprc-driver.c
+++ b/drivers/bus/fsl-mc/dprc-driver.c
@@ -27,7 +27,16 @@ static bool fsl_mc_device_match(struct fsl_mc_device *mc_dev,
 {
 	return mc_dev->obj_desc.id == obj_desc->id &&
 	       strcmp(mc_dev->obj_desc.type, obj_desc->type) == 0;
+}
 
+static bool fsl_mc_obj_desc_is_allocatable(struct fsl_mc_obj_desc *obj)
+{
+	if (strcmp(obj->type, "dpmcp") == 0 ||
+	    strcmp(obj->type, "dpcon") == 0 ||
+	    strcmp(obj->type, "dpbp") == 0)
+		return true;
+	else
+		return false;
 }
 
 static int __fsl_mc_device_remove_if_not_in_mc(struct device *dev, void *data)
@@ -150,6 +159,27 @@ static void check_plugged_state_change(struct fsl_mc_device *mc_dev,
 	}
 }
 
+static void fsl_mc_obj_device_add(struct fsl_mc_device *mc_bus_dev,
+				  struct fsl_mc_obj_desc *obj_desc)
+{
+	int error;
+	struct fsl_mc_device *child_dev;
+
+	/*
+	 * Check if device is already known to Linux:
+	 */
+	child_dev = fsl_mc_device_lookup(obj_desc, mc_bus_dev);
+	if (child_dev) {
+		check_plugged_state_change(child_dev, obj_desc);
+		put_device(&child_dev->dev);
+	} else {
+		error = fsl_mc_device_add(obj_desc, NULL, &mc_bus_dev->dev,
+					  &child_dev);
+		if (error < 0)
+			return;
+	}
+}
+
 /**
  * dprc_add_new_devices - Adds devices to the logical bus for a DPRC
  *
@@ -166,30 +196,23 @@ static void dprc_add_new_devices(struct fsl_mc_device *mc_bus_dev,
 				 struct fsl_mc_obj_desc *obj_desc_array,
 				 int num_child_objects_in_mc)
 {
-	int error;
 	int i;
 
+	/* probe the allocable objects first */
 	for (i = 0; i < num_child_objects_in_mc; i++) {
-		struct fsl_mc_device *child_dev;
 		struct fsl_mc_obj_desc *obj_desc = &obj_desc_array[i];
 
-		if (strlen(obj_desc->type) == 0)
-			continue;
+		if (strlen(obj_desc->type) > 0 &&
+		    fsl_mc_obj_desc_is_allocatable(obj_desc))
+			fsl_mc_obj_device_add(mc_bus_dev, obj_desc);
+	}
 
-		/*
-		 * Check if device is already known to Linux:
-		 */
-		child_dev = fsl_mc_device_lookup(obj_desc, mc_bus_dev);
-		if (child_dev) {
-			check_plugged_state_change(child_dev, obj_desc);
-			put_device(&child_dev->dev);
-			continue;
-		}
+	for (i = 0; i < num_child_objects_in_mc; i++) {
+		struct fsl_mc_obj_desc *obj_desc = &obj_desc_array[i];
 
-		error = fsl_mc_device_add(obj_desc, NULL, &mc_bus_dev->dev,
-					  &child_dev);
-		if (error < 0)
-			continue;
+		if (strlen(obj_desc->type) > 0 &&
+		    !fsl_mc_obj_desc_is_allocatable(obj_desc))
+			fsl_mc_obj_device_add(mc_bus_dev, obj_desc);
 	}
 }
 
diff --git a/drivers/bus/fsl-mc/fsl-mc-bus.c b/drivers/bus/fsl-mc/fsl-mc-bus.c
index 324d49d6df89..b69794e7364d 100644
--- a/drivers/bus/fsl-mc/fsl-mc-bus.c
+++ b/drivers/bus/fsl-mc/fsl-mc-bus.c
@@ -213,6 +213,31 @@ struct device_type fsl_mc_bus_dpseci_type = {
 };
 EXPORT_SYMBOL_GPL(fsl_mc_bus_dpseci_type);
 
+struct device_type fsl_mc_bus_dpdmux_type = {
+	.name = "fsl_mc_bus_dpdmux"
+};
+EXPORT_SYMBOL_GPL(fsl_mc_bus_dpdmux_type);
+
+struct device_type fsl_mc_bus_dpdcei_type = {
+	.name = "fsl_mc_bus_dpdcei"
+};
+EXPORT_SYMBOL_GPL(fsl_mc_bus_dpdcei_type);
+
+struct device_type fsl_mc_bus_dpaiop_type = {
+	.name = "fsl_mc_bus_dpaiop"
+};
+EXPORT_SYMBOL_GPL(fsl_mc_bus_dpaiop_type);
+
+struct device_type fsl_mc_bus_dpci_type = {
+	.name = "fsl_mc_bus_dpci"
+};
+EXPORT_SYMBOL_GPL(fsl_mc_bus_dpci_type);
+
+struct device_type fsl_mc_bus_dpdmai_type = {
+	.name = "fsl_mc_bus_dpdmai"
+};
+EXPORT_SYMBOL_GPL(fsl_mc_bus_dpdmai_type);
+
 static struct device_type *fsl_mc_get_device_type(const char *type)
 {
 	static const struct {
@@ -229,6 +254,11 @@ static struct device_type *fsl_mc_get_device_type(const char *type)
 		{ &fsl_mc_bus_dpmac_type, "dpmac" },
 		{ &fsl_mc_bus_dprtc_type, "dprtc" },
 		{ &fsl_mc_bus_dpseci_type, "dpseci" },
+		{ &fsl_mc_bus_dpdmux_type, "dpdmux" },
+		{ &fsl_mc_bus_dpdcei_type, "dpdcei" },
+		{ &fsl_mc_bus_dpaiop_type, "dpaiop" },
+		{ &fsl_mc_bus_dpci_type, "dpci" },
+		{ &fsl_mc_bus_dpdmai_type, "dpdmai" },
 		{ NULL, NULL }
 	};
 	int i;
diff --git a/drivers/bus/fsl-mc/mc-io.c b/drivers/bus/fsl-mc/mc-io.c
index 6ae48ad80409..a30b53f1d87d 100644
--- a/drivers/bus/fsl-mc/mc-io.c
+++ b/drivers/bus/fsl-mc/mc-io.c
@@ -82,7 +82,7 @@ int __must_check fsl_create_mc_io(struct device *dev,
 	mc_io->portal_phys_addr = mc_portal_phys_addr;
 	mc_io->portal_size = mc_portal_size;
 	if (flags & FSL_MC_IO_ATOMIC_CONTEXT_PORTAL)
-		spin_lock_init(&mc_io->spinlock);
+		raw_spin_lock_init(&mc_io->spinlock);
 	else
 		mutex_init(&mc_io->mutex);
 
diff --git a/drivers/bus/fsl-mc/mc-sys.c b/drivers/bus/fsl-mc/mc-sys.c
index 3221a7fbaf0a..85a0225db522 100644
--- a/drivers/bus/fsl-mc/mc-sys.c
+++ b/drivers/bus/fsl-mc/mc-sys.c
@@ -251,7 +251,7 @@ int mc_send_command(struct fsl_mc_io *mc_io, struct fsl_mc_command *cmd)
 		return -EINVAL;
 
 	if (mc_io->flags & FSL_MC_IO_ATOMIC_CONTEXT_PORTAL)
-		spin_lock_irqsave(&mc_io->spinlock, irq_flags);
+		raw_spin_lock_irqsave(&mc_io->spinlock, irq_flags);
 	else
 		mutex_lock(&mc_io->mutex);
 
@@ -287,7 +287,7 @@ int mc_send_command(struct fsl_mc_io *mc_io, struct fsl_mc_command *cmd)
 	error = 0;
 common_exit:
 	if (mc_io->flags & FSL_MC_IO_ATOMIC_CONTEXT_PORTAL)
-		spin_unlock_irqrestore(&mc_io->spinlock, irq_flags);
+		raw_spin_unlock_irqrestore(&mc_io->spinlock, irq_flags);
 	else
 		mutex_unlock(&mc_io->mutex);