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authorSylwester Nawrocki <s.nawrocki@samsung.com>2014-06-18 19:29:32 +0400
committerMike Turquette <mturquette@linaro.org>2014-07-26 02:16:27 +0400
commit86be408bfbd846fab3c4ac21d6f9298bd2e4b790 (patch)
tree7fbcd8031f805c6faa8a55b7187bf9fd395664d7 /include/linux/clk
parent09575693a2511b5ddae0105546e0d9cefc936e34 (diff)
downloadlinux-86be408bfbd846fab3c4ac21d6f9298bd2e4b790.tar.xz
clk: Support for clock parents and rates assigned from device tree
This patch adds helper functions to configure clock parents and rates as specified through 'assigned-clock-parents', 'assigned-clock-rates' DT properties for a clock provider or clock consumer device. The helpers are now being called by the bus code for the platform, I2C and SPI busses, before the driver probing and also in the clock core after registration of a clock provider. Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com> Acked-by: Kyungmin Park <kyungmin.park@samsung.com> Signed-off-by: Mike Turquette <mturquette@linaro.org>
Diffstat (limited to 'include/linux/clk')
-rw-r--r--include/linux/clk/clk-conf.h20
1 files changed, 20 insertions, 0 deletions
diff --git a/include/linux/clk/clk-conf.h b/include/linux/clk/clk-conf.h
new file mode 100644
index 000000000000..f3050e15f833
--- /dev/null
+++ b/include/linux/clk/clk-conf.h
@@ -0,0 +1,20 @@
+/*
+ * Copyright (C) 2014 Samsung Electronics Co., Ltd.
+ * Sylwester Nawrocki <s.nawrocki@samsung.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+struct device_node;
+
+#if defined(CONFIG_OF) && defined(CONFIG_COMMON_CLK)
+int of_clk_set_defaults(struct device_node *node, bool clk_supplier);
+#else
+static inline int of_clk_set_defaults(struct device_node *node,
+ bool clk_supplier)
+{
+ return 0;
+}
+#endif