clk: Add CLK_IS_BASIC flag to identify basic clocks

Most platforms end up using a mix of basic clock types and
some which use clk_hw_foo struct for filling in custom platform
information when the clocks don't fit into basic types supported.

In platform code, its useful to know if a clock is using a basic
type or clk_hw_foo, which helps platforms know if they can
safely use to_clk_hw_foo to derive the clk_hw_foo pointer from
clk_hw.

Mark all basic clocks with a CLK_IS_BASIC flag.

Signed-off-by: Rajendra Nayak <rnayak@ti.com>
Signed-off-by: Mike Turquette <mturquette@linaro.org>

2 files changed, 2 insertions, 1 deletions

diff --git a/include/linux/clk-private.h b/include/linux/clk-private.h
index cc9972d1429c..9c7f5807824b 100644
--- a/include/linux/clk-private.h
+++ b/include/linux/clk-private.h
@@ -64,7 +64,7 @@ struct clk {
 		.parent_names = _parent_names,			\
 		.num_parents = ARRAY_SIZE(_parent_names),	\
 		.parents = _parents,				\
-		.flags = _flags,				\
+		.flags = _flags | CLK_IS_BASIC,			\
 	}
 
 #define DEFINE_CLK_FIXED_RATE(_name, _flags, _rate,		\
diff --git a/include/linux/clk-provider.h b/include/linux/clk-provider.h
index 79caee9f1489..0236f58f3e65 100644
--- a/include/linux/clk-provider.h
+++ b/include/linux/clk-provider.h
@@ -25,6 +25,7 @@
 #define CLK_SET_RATE_PARENT	BIT(2) /* propagate rate change up one level */
 #define CLK_IGNORE_UNUSED	BIT(3) /* do not gate even if unused */
 #define CLK_IS_ROOT		BIT(4) /* root clk, has no parent */
+#define CLK_IS_BASIC		BIT(5) /* Basic clk, can't do a to_clk_foo() */
 
 struct clk_hw;