clk: Add common __clk_get(), __clk_put() implementations

This patch adds common __clk_get(), __clk_put() clkdev helpers that
replace their platform specific counterparts when the common clock
API is used.

The owner module pointer field is added to struct clk so a reference
to the clock supplier module can be taken by the clock consumers.

The owner module is assigned while the clock is being registered,
in functions _clk_register() and __clk_register().

Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Acked-by: Russell King <rmk+kernel@arm.linux.org.uk>

1 files changed, 3 insertions, 0 deletions

diff --git a/include/linux/clk-private.h b/include/linux/clk-private.h
index 8138c94409f3..8cb1865e7d9d 100644
--- a/include/linux/clk-private.h
+++ b/include/linux/clk-private.h
@@ -25,10 +25,13 @@
 
 #ifdef CONFIG_COMMON_CLK
 
+struct module;
+
 struct clk {
         const char              *name;
         const struct clk_ops    *ops;
         struct clk_hw           *hw;
+        struct module           *owner;
         struct clk              *parent;
         const char              **parent_names;
         struct clk              **parents;