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authorSuzuki K Poulose <suzuki.poulose@arm.com>2019-06-19 22:53:02 +0300
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2019-06-20 08:56:13 +0300
commit20961aea982e839fa64cd08a616847aea14a185f (patch)
tree1ce19fff7c6558b1a2d4cccf3e8657df758bedd0 /drivers/hwtracing
parent688da45f20fec12cf94a5a0f3f9babe8125d0732 (diff)
downloadlinux-20961aea982e839fa64cd08a616847aea14a185f.tar.xz
coresight: platform: Use fwnode handle for device search
We match of_node while searching for a device. Make this more generic in preparation for the ACPI support by using fwnode_handle. Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com> Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/hwtracing')
-rw-r--r--drivers/hwtracing/coresight/coresight-platform.c16
1 files changed, 9 insertions, 7 deletions
diff --git a/drivers/hwtracing/coresight/coresight-platform.c b/drivers/hwtracing/coresight/coresight-platform.c
index 53d6eed44a20..4394095ad224 100644
--- a/drivers/hwtracing/coresight/coresight-platform.c
+++ b/drivers/hwtracing/coresight/coresight-platform.c
@@ -36,14 +36,13 @@ static int coresight_alloc_conns(struct device *dev,
return 0;
}
-#ifdef CONFIG_OF
-static int of_dev_node_match(struct device *dev, void *data)
+static int coresight_device_fwnode_match(struct device *dev, void *fwnode)
{
- return dev->of_node == data;
+ return dev_fwnode(dev) == fwnode;
}
static struct device *
-of_coresight_get_endpoint_device(struct device_node *endpoint)
+coresight_find_device_by_fwnode(struct fwnode_handle *fwnode)
{
struct device *dev = NULL;
@@ -52,7 +51,7 @@ of_coresight_get_endpoint_device(struct device_node *endpoint)
* platform bus.
*/
dev = bus_find_device(&platform_bus_type, NULL,
- endpoint, of_dev_node_match);
+ fwnode, coresight_device_fwnode_match);
if (dev)
return dev;
@@ -61,9 +60,10 @@ of_coresight_get_endpoint_device(struct device_node *endpoint)
* looking for the device that matches the endpoint node.
*/
return bus_find_device(&amba_bustype, NULL,
- endpoint, of_dev_node_match);
+ fwnode, coresight_device_fwnode_match);
}
+#ifdef CONFIG_OF
static inline bool of_coresight_legacy_ep_is_input(struct device_node *ep)
{
return of_property_read_bool(ep, "slave-mode");
@@ -191,6 +191,7 @@ static int of_coresight_parse_endpoint(struct device *dev,
struct device_node *rparent = NULL;
struct device_node *rep = NULL;
struct device *rdev = NULL;
+ struct fwnode_handle *rdev_fwnode;
do {
/* Parse the local port details */
@@ -209,8 +210,9 @@ static int of_coresight_parse_endpoint(struct device *dev,
if (of_graph_parse_endpoint(rep, &rendpoint))
break;
+ rdev_fwnode = of_fwnode_handle(rparent);
/* If the remote device is not available, defer probing */
- rdev = of_coresight_get_endpoint_device(rparent);
+ rdev = coresight_find_device_by_fwnode(rdev_fwnode);
if (!rdev) {
ret = -EPROBE_DEFER;
break;