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path: root/drivers/clk/clk-uclass.c
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Diffstat (limited to 'drivers/clk/clk-uclass.c')
-rw-r--r--drivers/clk/clk-uclass.c48
1 files changed, 48 insertions, 0 deletions
diff --git a/drivers/clk/clk-uclass.c b/drivers/clk/clk-uclass.c
index 82a62c02d99..80346987b9d 100644
--- a/drivers/clk/clk-uclass.c
+++ b/drivers/clk/clk-uclass.c
@@ -625,6 +625,54 @@ bool clk_is_match(const struct clk *p, const struct clk *q)
return false;
}
+static void devm_clk_release(struct udevice *dev, void *res)
+{
+ clk_free(res);
+}
+
+static int devm_clk_match(struct udevice *dev, void *res, void *data)
+{
+ return res == data;
+}
+
+struct clk *devm_clk_get(struct udevice *dev, const char *id)
+{
+ int rc;
+ struct clk *clk;
+
+ clk = devres_alloc(devm_clk_release, sizeof(struct clk), __GFP_ZERO);
+ if (unlikely(!clk))
+ return ERR_PTR(-ENOMEM);
+
+ rc = clk_get_by_name(dev, id, clk);
+ if (rc)
+ return ERR_PTR(rc);
+
+ devres_add(dev, clk);
+ return clk;
+}
+
+struct clk *devm_clk_get_optional(struct udevice *dev, const char *id)
+{
+ struct clk *clk = devm_clk_get(dev, id);
+
+ if (IS_ERR(clk))
+ return NULL;
+
+ return clk;
+}
+
+void devm_clk_put(struct udevice *dev, struct clk *clk)
+{
+ int rc;
+
+ if (!clk)
+ return;
+
+ rc = devres_release(dev, devm_clk_release, devm_clk_match, clk);
+ WARN_ON(rc);
+}
+
UCLASS_DRIVER(clk) = {
.id = UCLASS_CLK,
.name = "clk",