dm: core: Add an implementation of regmap_init_mem_platdata()
Add an implementation of this function which mirrors the functions of the
automatic device-tree implementation. This can be used with of-platdata to
create regmaps.
Signed-off-by: Simon Glass <sjg@chromium.org>
diff --git a/drivers/core/regmap.c b/drivers/core/regmap.c
index dcb1a30..0299ff0 100644
--- a/drivers/core/regmap.c
+++ b/drivers/core/regmap.c
@@ -37,10 +37,24 @@
}
#if CONFIG_IS_ENABLED(OF_PLATDATA)
-int regmap_init_mem_platdata(struct udevice *dev, fdt32_t *reg, int size,
+int regmap_init_mem_platdata(struct udevice *dev, u32 *reg, int count,
struct regmap **mapp)
{
- /* TODO(sjg@chromium.org): Implement this when needed */
+ struct regmap_range *range;
+ struct regmap *map;
+
+ map = regmap_alloc_count(count);
+ if (!map)
+ return -ENOMEM;
+
+ map->base = *reg;
+ for (range = map->range; count > 0; reg += 2, range++, count--) {
+ range->start = *reg;
+ range->size = reg[1];
+ }
+
+ *mapp = map;
+
return 0;
}
#else