From f6991b0456416186b578d38717efcda2b012b79c Mon Sep 17 00:00:00 2001 From: Paul Mundt Date: Fri, 20 Jul 2007 13:29:09 +0900 Subject: [PATCH] sh: Implement clk_round_rate() in the clock framework. This is an optional component of the clock framework. However, as we're going to be using this in the cpufreq drivers, add support for it to the framework. Signed-off-by: Paul Mundt --- arch/sh/kernel/cpu/clock.c | 16 ++++++++++++++++ include/asm-sh/clock.h | 1 + 2 files changed, 17 insertions(+) diff --git a/arch/sh/kernel/cpu/clock.c b/arch/sh/kernel/cpu/clock.c index 6325154..92807ff 100644 --- a/arch/sh/kernel/cpu/clock.c +++ b/arch/sh/kernel/cpu/clock.c @@ -229,6 +229,22 @@ void clk_recalc_rate(struct clk *clk) } EXPORT_SYMBOL_GPL(clk_recalc_rate); +long clk_round_rate(struct clk *clk, unsigned long rate) +{ + if (likely(clk->ops && clk->ops->round_rate)) { + unsigned long flags, rounded; + + spin_lock_irqsave(&clock_lock, flags); + rounded = clk->ops->round_rate(clk, rate); + spin_unlock_irqrestore(&clock_lock, flags); + + return rounded; + } + + return clk_get_rate(clk); +} +EXPORT_SYMBOL_GPL(clk_round_rate); + /* * Returns a clock. Note that we first try to use device id on the bus * and clock name. If this fails, we try to use clock name only. diff --git a/include/asm-sh/clock.h b/include/asm-sh/clock.h index 386d797..b550a27 100644 --- a/include/asm-sh/clock.h +++ b/include/asm-sh/clock.h @@ -14,6 +14,7 @@ struct clk_ops { void (*disable)(struct clk *clk); void (*recalc)(struct clk *clk); int (*set_rate)(struct clk *clk, unsigned long rate, int algo_id); + long (*round_rate)(struct clk *clk, unsigned long rate); }; struct clk { -- 2.7.4