From 42c86547f4e5c2e81616c76ce9a2badce515c41f Mon Sep 17 00:00:00 2001 From: Tomeu Vizoso Date: Wed, 11 Mar 2015 11:34:25 +0100 Subject: [PATCH] clk: Expose clk_hw_reparent() to providers To be used by clock implementations for switching to a new parent during rate change. Signed-off-by: Tomeu Vizoso Signed-off-by: Thierry Reding --- drivers/clk/clk.c | 8 ++++++++ include/linux/clk-provider.h | 1 + 2 files changed, 9 insertions(+) diff --git a/drivers/clk/clk.c b/drivers/clk/clk.c index 459ce9d..5315a27 100644 --- a/drivers/clk/clk.c +++ b/drivers/clk/clk.c @@ -2020,6 +2020,14 @@ static void clk_core_reparent(struct clk_core *clk, __clk_recalc_rates(clk, POST_RATE_CHANGE); } +void clk_hw_reparent(struct clk_hw *hw, struct clk_hw *new_parent) +{ + if (!hw) + return; + + clk_core_reparent(hw->core, !new_parent ? NULL : new_parent->core); +} + /** * clk_has_parent - check if a clock is a possible parent for another * @clk: clock source diff --git a/include/linux/clk-provider.h b/include/linux/clk-provider.h index df69531..51efb9e 100644 --- a/include/linux/clk-provider.h +++ b/include/linux/clk-provider.h @@ -589,6 +589,7 @@ long __clk_mux_determine_rate_closest(struct clk_hw *hw, unsigned long rate, unsigned long max_rate, unsigned long *best_parent_rate, struct clk_hw **best_parent_p); +void clk_hw_reparent(struct clk_hw *hw, struct clk_hw *new_parent); static inline void __clk_hw_set_clk(struct clk_hw *dst, struct clk_hw *src) { -- 2.7.4