summaryrefslogtreecommitdiffstats
path: root/drivers/misc/state.c
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/misc/state.c')
-rw-r--r--drivers/misc/state.c65
1 files changed, 2 insertions, 63 deletions
diff --git a/drivers/misc/state.c b/drivers/misc/state.c
index 73356b4..b9eb1b7 100644
--- a/drivers/misc/state.c
+++ b/drivers/misc/state.c
@@ -24,75 +24,14 @@
static int state_probe(struct device_d *dev)
{
struct device_node *np = dev->device_node;
- struct device_node *partition_node;
struct state *state;
- const char *alias;
- const char *backend_type = NULL;
- int len, ret;
- const char *of_path;
- char *path;
+ bool readonly = false;
- if (!np)
- return -EINVAL;
-
- alias = of_alias_get(np);
- if (!alias)
- alias = np->name;
-
- state = state_new_from_node(alias, np);
+ state = state_new_from_node(np, NULL, 0, 0, readonly);
if (IS_ERR(state))
return PTR_ERR(state);
- of_path = of_get_property(np, "backend", &len);
- if (!of_path) {
- ret = -ENODEV;
- goto out_release;
- }
-
- /* guess if of_path is a path, not a phandle */
- if (of_path[0] == '/' && len > 1) {
- ret = of_find_path(np, "backend", &path, 0);
- } else {
-
- partition_node = of_parse_phandle(np, "backend", 0);
- if (!partition_node)
- return -EINVAL;
-
- of_path = partition_node->full_name;
- ret = of_find_path_by_node(partition_node, &path, 0);
- }
-
- if (ret == -ENODEV)
- ret = -EPROBE_DEFER;
- if (ret)
- goto out_release;
-
- ret = of_property_read_string(np, "backend-type", &backend_type);
- if (ret) {
- goto out_free;
- } else if (!strcmp(backend_type, "raw")) {
- ret = state_backend_raw_file(state, of_path, path, 0, 0);
- } else if (!strcmp(backend_type, "dtb")) {
- ret = state_backend_dtb_file(state, of_path, path);
- } else {
- dev_warn(dev, "invalid backend type: %s\n", backend_type);
- ret = -ENODEV;
- goto out_free;
- }
-
- if (ret)
- goto out_free;
-
- dev_info(dev, "backend: %s, path: %s, of_path: %s\n", backend_type, path, of_path);
- free(path);
-
return 0;
-
- out_free:
- free(path);
- out_release:
- state_release(state);
- return ret;
}
static __maybe_unused struct of_device_id state_ids[] = {