#ifndef _CLK_H_
#define _CLK_H_
+#include <linux/errno.h>
#include <linux/types.h>
-#include <asm/errno.h>
/**
* A clock is a hardware signal that oscillates autonomously at a specific
};
#if CONFIG_IS_ENABLED(OF_CONTROL) && CONFIG_IS_ENABLED(CLK)
-struct phandle_2_cell;
+struct phandle_1_arg;
int clk_get_by_index_platdata(struct udevice *dev, int index,
- struct phandle_2_cell *cells, struct clk *clk);
+ struct phandle_1_arg *cells, struct clk *clk);
/**
* clock_get_by_index - Get/request a clock by integer index.
* @return 0 if OK, or a negative error code.
*/
int clk_get_by_name(struct udevice *dev, const char *name, struct clk *clk);
+
+/**
+ * clk_release_all() - Disable (turn off)/Free an array of previously
+ * requested clocks.
+ *
+ * For each clock contained in the clock array, this function will check if
+ * clock has been previously requested and then will disable and free it.
+ *
+ * @clk: A clock struct array that was previously successfully
+ * requested by clk_request/get_by_*().
+ * @count Number of clock contained in the array
+ * @return zero on success, or -ve error code.
+ */
+int clk_release_all(struct clk *clk, int count);
+
#else
static inline int clk_get_by_index(struct udevice *dev, int index,
struct clk *clk)
{
return -ENOSYS;
}
+
+static inline int clk_release_all(struct clk *clk, int count)
+{
+ return -ENOSYS;
+}
+
+#endif
+
+#if (CONFIG_IS_ENABLED(OF_CONTROL) && !CONFIG_IS_ENABLED(OF_PLATDATA)) && \
+ CONFIG_IS_ENABLED(CLK)
+/**
+ * clk_set_defaults - Process 'assigned-{clocks/clock-parents/clock-rates}'
+ * properties to configure clocks
+ *
+ * @dev: A device to process (the ofnode associated with this device
+ * will be processed).
+ */
+int clk_set_defaults(struct udevice *dev);
+#else
+static inline int clk_set_defaults(struct udevice *dev)
+{
+ return 0;
+}
#endif
/**
*/
ulong clk_set_rate(struct clk *clk, ulong rate);
+/**
+ * clk_set_parent() - Set current clock parent.
+ *
+ * @clk: A clock struct that was previously successfully requested by
+ * clk_request/get_by_*().
+ * @parent: A clock struct that was previously successfully requested by
+ * clk_request/get_by_*().
+ * @return new rate, or -ve error code.
+ */
+int clk_set_parent(struct clk *clk, struct clk *parent);
+
/**
* clk_enable() - Enable (turn on) a clock.
*