X-Git-Url: https://git.librecmc.org/?a=blobdiff_plain;f=include%2Fclk.h;h=60c4b7d075fe8674037ab731b8f6d16cc609ba1c;hb=16ad946f41d3dc3e475d8313f4acbba0df527a2a;hp=a5ee53d94aa4f60c62bccf442dbf319e81c5c75b;hpb=bb1bb4bb5df9df4d3f07e39a632daaff79e4b77e;p=oweals%2Fu-boot.git

diff --git a/include/clk.h b/include/clk.h
index a5ee53d94a..60c4b7d075 100644
--- a/include/clk.h
+++ b/include/clk.h
@@ -9,6 +9,7 @@
 #define _CLK_H_
 
 #include <dm/ofnode.h>
+#include <linux/err.h>
 #include <linux/errno.h>
 #include <linux/types.h>
 
@@ -154,6 +155,34 @@ int clk_get_bulk(struct udevice *dev, struct clk_bulk *bulk);
  */
 int clk_get_by_name(struct udevice *dev, const char *name, struct clk *clk);
 
+/**
+ * clk_get_by_name_nodev - Get/request a clock by name without a device.
+ *
+ * This is a version of clk_get_by_name() that does not use a device.
+ *
+ * @node:	The client ofnode.
+ * @name:	The name of the clock to request, within the client's list of
+ *		clocks.
+ * @clock:	A pointer to a clock struct to initialize.
+ * @return 0 if OK, or a negative error code.
+ */
+int clk_get_by_name_nodev(ofnode node, const char *name, struct clk *clk);
+
+/**
+ * clock_get_optional_nodev - Get/request an optinonal clock by name
+ *		without a device.
+ * @node:	The client ofnode.
+ * @name:	The name of the clock to request.
+ * @name:	The name of the clock to request, within the client's list of
+ *		clocks.
+ * @clock:	A pointer to a clock struct to initialize.
+ *
+ * Behaves the same as clk_get_by_name_nodev() except where there is
+ * no clock producer, in this case, skip the error number -ENODATA, and
+ * the function returns 0.
+ */
+int clk_get_optional_nodev(ofnode node, const char *name, struct clk *clk);
+
 /**
  * devm_clk_get - lookup and obtain a managed reference to a clock producer.
  * @dev: device for clock "consumer"
@@ -230,6 +259,18 @@ static inline int clk_get_by_name(struct udevice *dev, const char *name,
 	return -ENOSYS;
 }
 
+static inline int
+clk_get_by_name_nodev(ofnode node, const char *name, struct clk *clk)
+{
+	return -ENOSYS;
+}
+
+static inline int
+clk_get_optional_nodev(ofnode node, const char *name, struct clk *clk)
+{
+	return -ENOSYS;
+}
+
 static inline int clk_release_all(struct clk *clk, int count)
 {
 	return -ENOSYS;
@@ -272,6 +313,7 @@ static inline int clk_release_bulk(struct clk_bulk *bulk)
 	return clk_release_all(bulk->clks, bulk->count);
 }
 
+#if CONFIG_IS_ENABLED(CLK)
 /**
  * clk_request - Request a clock by provider-specific ID.
  *
@@ -393,19 +435,6 @@ int clk_disable_bulk(struct clk_bulk *bulk);
  */
 bool clk_is_match(const struct clk *p, const struct clk *q);
 
-int soc_clk_dump(void);
-
-/**
- * clk_valid() - check if clk is valid
- *
- * @clk:	the clock to check
- * @return true if valid, or false
- */
-static inline bool clk_valid(struct clk *clk)
-{
-	return clk && !!clk->dev;
-}
-
 /**
  * clk_get_by_id() - Get the clock by its ID
  *
@@ -425,6 +454,93 @@ int clk_get_by_id(ulong id, struct clk **clkp);
  * @return true on binded, or false on no
  */
 bool clk_dev_binded(struct clk *clk);
+
+#else /* CONFIG_IS_ENABLED(CLK) */
+
+static inline int clk_request(struct udevice *dev, struct clk *clk)
+{
+	return -ENOSYS;
+}
+
+static inline int clk_free(struct clk *clk)
+{
+	return 0;
+}
+
+static inline ulong clk_get_rate(struct clk *clk)
+{
+	return -ENOSYS;
+}
+
+static inline struct clk *clk_get_parent(struct clk *clk)
+{
+	return ERR_PTR(-ENOSYS);
+}
+
+static inline long long clk_get_parent_rate(struct clk *clk)
+{
+	return -ENOSYS;
+}
+
+static inline ulong clk_set_rate(struct clk *clk, ulong rate)
+{
+	return -ENOSYS;
+}
+
+static inline int clk_set_parent(struct clk *clk, struct clk *parent)
+{
+	return -ENOSYS;
+}
+
+static inline int clk_enable(struct clk *clk)
+{
+	return 0;
+}
+
+static inline int clk_enable_bulk(struct clk_bulk *bulk)
+{
+	return 0;
+}
+
+static inline int clk_disable(struct clk *clk)
+{
+	return 0;
+}
+
+static inline int clk_disable_bulk(struct clk_bulk *bulk)
+{
+	return 0;
+}
+
+static inline bool clk_is_match(const struct clk *p, const struct clk *q)
+{
+	return false;
+}
+
+static inline int clk_get_by_id(ulong id, struct clk **clkp)
+{
+	return -ENOSYS;
+}
+
+static inline bool clk_dev_binded(struct clk *clk)
+{
+	return false;
+}
+#endif /* CONFIG_IS_ENABLED(CLK) */
+
+/**
+ * clk_valid() - check if clk is valid
+ *
+ * @clk:	the clock to check
+ * @return true if valid, or false
+ */
+static inline bool clk_valid(struct clk *clk)
+{
+	return clk && !!clk->dev;
+}
+
+int soc_clk_dump(void);
+
 #endif
 
 #define clk_prepare_enable(clk) clk_enable(clk)