[U-Boot] [PATCH 1/6] clk: add clk_valid()

add clk_valid() to check for optional clocks are valid.

Signed-off-by: Fabrice Gasnier fabrice.gasnier@st.com ---

include/clk.h | 10 ++++++++++ 1 file changed, 10 insertions(+)

diff --git a/include/clk.h b/include/clk.h index 9a35764..71679a9 100644 --- a/include/clk.h +++ b/include/clk.h @@ -294,4 +294,14 @@ int clk_disable_bulk(struct clk_bulk *bulk);

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->dev; +} #endif