sh: clkfwk: rate table construction and rounding for SH7785.

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This adds support for constructing a rate table by looking at potential
divisors for a specified clock. Each FQRMR clock is given its own table.
Presently each table is rebuilt when the parent propagates down a new
rate, so some more logic needs to be added to do this more intelligently.

Additionally, a fairly generic round_rate() implementation is then
layered on top of it, which subsequently provides us with cpufreq support.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>

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This commit is contained in:

Paul Mundt 2009-05-13 20:28:15 +09:00

parent a77b5ac0ea

commit cc96eace48

3 changed files with 100 additions and 13 deletions

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1

arch/sh/include/asm/clock.h

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3

arch/sh/kernel/cpu/clock.c

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109

arch/sh/kernel/cpu/sh4a/clock-sh7785.c

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