vme: add vme_init_bridge for common bridge init
Consolidate vme_bridge structure setup that every bridge was required
to do itself. This came about because .irq_mtx is only used within the
VME core, but was required to be setup externally.
This returns the structure passed in to support shorthand like this:
bridge = vme_init_bridge(&priv->bridge);
Signed-off-by: Aaron Sierra <asierra@xes-inc.com>
Acked-by: Martyn Welch <martyn@welchs.me.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
diff --git a/drivers/vme/bridges/vme_ca91cx42.c b/drivers/vme/bridges/vme_ca91cx42.c
index 5fbeab3..9f2c834 100644
--- a/drivers/vme/bridges/vme_ca91cx42.c
+++ b/drivers/vme/bridges/vme_ca91cx42.c
@@ -204,10 +204,6 @@
/* Need pdev */
pdev = to_pci_dev(ca91cx42_bridge->parent);
- INIT_LIST_HEAD(&ca91cx42_bridge->vme_error_handlers);
-
- mutex_init(&ca91cx42_bridge->irq_mtx);
-
/* Disable interrupts from PCI to VME */
iowrite32(0, bridge->base + VINT_EN);
@@ -1626,6 +1622,7 @@
retval = -ENOMEM;
goto err_struct;
}
+ vme_init_bridge(ca91cx42_bridge);
ca91cx42_device = kzalloc(sizeof(struct ca91cx42_driver), GFP_KERNEL);
@@ -1686,7 +1683,6 @@
}
/* Add master windows to list */
- INIT_LIST_HEAD(&ca91cx42_bridge->master_resources);
for (i = 0; i < CA91C142_MAX_MASTER; i++) {
master_image = kmalloc(sizeof(struct vme_master_resource),
GFP_KERNEL);
@@ -1713,7 +1709,6 @@
}
/* Add slave windows to list */
- INIT_LIST_HEAD(&ca91cx42_bridge->slave_resources);
for (i = 0; i < CA91C142_MAX_SLAVE; i++) {
slave_image = kmalloc(sizeof(struct vme_slave_resource),
GFP_KERNEL);
@@ -1741,7 +1736,6 @@
}
/* Add dma engines to list */
- INIT_LIST_HEAD(&ca91cx42_bridge->dma_resources);
for (i = 0; i < CA91C142_MAX_DMA; i++) {
dma_ctrlr = kmalloc(sizeof(struct vme_dma_resource),
GFP_KERNEL);
@@ -1764,7 +1758,6 @@
}
/* Add location monitor to list */
- INIT_LIST_HEAD(&ca91cx42_bridge->lm_resources);
lm = kmalloc(sizeof(struct vme_lm_resource), GFP_KERNEL);
if (lm == NULL) {
dev_err(&pdev->dev, "Failed to allocate memory for "
diff --git a/drivers/vme/bridges/vme_tsi148.c b/drivers/vme/bridges/vme_tsi148.c
index 6052483..4bc5d45 100644
--- a/drivers/vme/bridges/vme_tsi148.c
+++ b/drivers/vme/bridges/vme_tsi148.c
@@ -314,10 +314,6 @@
bridge = tsi148_bridge->driver_priv;
- INIT_LIST_HEAD(&tsi148_bridge->vme_error_handlers);
-
- mutex_init(&tsi148_bridge->irq_mtx);
-
result = request_irq(pdev->irq,
tsi148_irqhandler,
IRQF_SHARED,
@@ -2301,6 +2297,7 @@
retval = -ENOMEM;
goto err_struct;
}
+ vme_init_bridge(tsi148_bridge);
tsi148_device = kzalloc(sizeof(struct tsi148_driver), GFP_KERNEL);
if (tsi148_device == NULL) {
@@ -2387,7 +2384,6 @@
}
/* Add master windows to list */
- INIT_LIST_HEAD(&tsi148_bridge->master_resources);
for (i = 0; i < master_num; i++) {
master_image = kmalloc(sizeof(struct vme_master_resource),
GFP_KERNEL);
@@ -2417,7 +2413,6 @@
}
/* Add slave windows to list */
- INIT_LIST_HEAD(&tsi148_bridge->slave_resources);
for (i = 0; i < TSI148_MAX_SLAVE; i++) {
slave_image = kmalloc(sizeof(struct vme_slave_resource),
GFP_KERNEL);
@@ -2442,7 +2437,6 @@
}
/* Add dma engines to list */
- INIT_LIST_HEAD(&tsi148_bridge->dma_resources);
for (i = 0; i < TSI148_MAX_DMA; i++) {
dma_ctrlr = kmalloc(sizeof(struct vme_dma_resource),
GFP_KERNEL);
@@ -2467,7 +2461,6 @@
}
/* Add location monitor to list */
- INIT_LIST_HEAD(&tsi148_bridge->lm_resources);
lm = kmalloc(sizeof(struct vme_lm_resource), GFP_KERNEL);
if (lm == NULL) {
dev_err(&pdev->dev, "Failed to allocate memory for "
diff --git a/drivers/vme/vme.c b/drivers/vme/vme.c
index 537b209..37ac0a5 100644
--- a/drivers/vme/vme.c
+++ b/drivers/vme/vme.c
@@ -1429,6 +1429,20 @@
kfree(dev_to_vme_dev(dev));
}
+/* Common bridge initialization */
+struct vme_bridge *vme_init_bridge(struct vme_bridge *bridge)
+{
+ INIT_LIST_HEAD(&bridge->vme_error_handlers);
+ INIT_LIST_HEAD(&bridge->master_resources);
+ INIT_LIST_HEAD(&bridge->slave_resources);
+ INIT_LIST_HEAD(&bridge->dma_resources);
+ INIT_LIST_HEAD(&bridge->lm_resources);
+ mutex_init(&bridge->irq_mtx);
+
+ return bridge;
+}
+EXPORT_SYMBOL(vme_init_bridge);
+
int vme_register_bridge(struct vme_bridge *bridge)
{
int i;
diff --git a/drivers/vme/vme_bridge.h b/drivers/vme/vme_bridge.h
index b59cbee..cb8246f 100644
--- a/drivers/vme/vme_bridge.h
+++ b/drivers/vme/vme_bridge.h
@@ -177,6 +177,7 @@
unsigned long long address, int am);
void vme_irq_handler(struct vme_bridge *, int, int);
+struct vme_bridge *vme_init_bridge(struct vme_bridge *);
int vme_register_bridge(struct vme_bridge *);
void vme_unregister_bridge(struct vme_bridge *);
struct vme_error_handler *vme_register_error_handler(