Add remap_bynode() since I use it in the rkpcie(4) implementation.

diff --git a/sys/dev/ofw/ofw_misc.c b/sys/dev/ofw/ofw_misc.c
index 60d33f5..06d7475 100644 (file)
--- a/sys/dev/ofw/ofw_misc.c
+++ b/sys/dev/ofw/ofw_misc.c
@@ -1,4 +1,4 @@
-/*     $OpenBSD: ofw_misc.c,v 1.2 2017/05/05 17:38:22 kettenis Exp $   */
+/*     $OpenBSD: ofw_misc.c,v 1.3 2018/01/03 04:15:51 kettenis Exp $   */
 /*
  * Copyright (c) 2017 Mark Kettenis
  *
@@ -25,6 +25,7 @@
 #include <dev/ofw/ofw_misc.h>
 
 struct regmap {
+       int                     rm_node;
        uint32_t                rm_phandle;
        bus_space_tag_t         rm_tag;
        bus_space_handle_t      rm_handle;
@@ -45,6 +46,7 @@ regmap_register(int node, bus_space_tag_t tag, bus_space_handle_t handle,
        phandle = OF_getpropint(node, "phandle", 0);
        if (phandle) {
                rm = malloc(sizeof(struct regmap), M_DEVBUF, M_WAITOK);
+               rm->rm_node = node;
                rm->rm_phandle = phandle;
                rm->rm_tag = tag;
                rm->rm_handle = handle;
@@ -53,6 +55,19 @@ regmap_register(int node, bus_space_tag_t tag, bus_space_handle_t handle,
        }
 }
 
+struct regmap *
+regmap_bynode(int node)
+{
+       struct regmap *rm;
+
+       LIST_FOREACH(rm, &regmaps, rm_list) {
+               if (rm->rm_node == node)
+                       return rm;
+       }
+
+       return NULL;
+}
+
 struct regmap *
 regmap_byphandle(uint32_t phandle)
 {

diff --git a/sys/dev/ofw/ofw_misc.h b/sys/dev/ofw/ofw_misc.h
index 37bd011..add4cdf 100644 (file)
--- a/sys/dev/ofw/ofw_misc.h
+++ b/sys/dev/ofw/ofw_misc.h
@@ -1,4 +1,4 @@
-/*     $OpenBSD: ofw_misc.h,v 1.1 2017/03/09 20:01:10 kettenis Exp $   */
+/*     $OpenBSD: ofw_misc.h,v 1.2 2018/01/03 04:15:51 kettenis Exp $   */
 /*
  * Copyright (c) 2017 Mark Kettenis
  *
@@ -21,6 +21,7 @@
 void   regmap_register(int, bus_space_tag_t, bus_space_handle_t, bus_size_t);
 
 struct regmap;
+struct regmap *regmap_bynode(int);
 struct regmap *regmap_byphandle(uint32_t);
 
 uint32_t regmap_read_4(struct regmap *, bus_size_t);