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author | Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> | 2011-09-19 18:51:13 -0700 |
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committer | Paul Mundt <lethal@linux-sh.org> | 2011-11-05 00:49:27 +0900 |
commit | dd2c0ca1b153b555c09fd8e08f6842e12cf8e87b (patch) | |
tree | 1c7490f128aa6153d8d42f9bb735cd4bd3aa16f2 /drivers/sh/clk/core.c | |
parent | 1a67a573b8d9f02211f36fbab50f6265dc49384a (diff) | |
download | op-kernel-dev-dd2c0ca1b153b555c09fd8e08f6842e12cf8e87b.zip op-kernel-dev-dd2c0ca1b153b555c09fd8e08f6842e12cf8e87b.tar.gz |
sh: clkfwk: add clk_rate_mult_range_round()
This provides a clk_rate_mult_range_round() helper for use by some of the
CPG PLL ranged multipliers, following the same approach as used by the
div ranges.
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
Diffstat (limited to 'drivers/sh/clk/core.c')
-rw-r--r-- | drivers/sh/clk/core.c | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/drivers/sh/clk/core.c b/drivers/sh/clk/core.c index dc8d022..352036b 100644 --- a/drivers/sh/clk/core.c +++ b/drivers/sh/clk/core.c @@ -173,6 +173,26 @@ long clk_rate_div_range_round(struct clk *clk, unsigned int div_min, return clk_rate_round_helper(&div_range_round); } +static long clk_rate_mult_range_iter(unsigned int pos, + struct clk_rate_round_data *rounder) +{ + return clk_get_rate(rounder->arg) * pos; +} + +long clk_rate_mult_range_round(struct clk *clk, unsigned int mult_min, + unsigned int mult_max, unsigned long rate) +{ + struct clk_rate_round_data mult_range_round = { + .min = mult_min, + .max = mult_max, + .func = clk_rate_mult_range_iter, + .arg = clk_get_parent(clk), + .rate = rate, + }; + + return clk_rate_round_helper(&mult_range_round); +} + int clk_rate_table_find(struct clk *clk, struct cpufreq_frequency_table *freq_table, unsigned long rate) |