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| author | Linus Torvalds <torvalds@woody.linux-foundation.org> | 2007-07-20 08:52:53 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@woody.linux-foundation.org> | 2007-07-20 08:52:53 -0700 |
| commit | 5f7e08ca7b657f5678dd62a080f7f3a8f923ad02 (patch) | |
| tree | 8ec61964df164dd9a2b6d5cbabd338a5728b7e3a /arch/sh/kernel/cpu/sh4a/clock-sh7722.c | |
| parent | 7f46e6ca0183568a688e6bfe40e3ab9adb305d03 (diff) | |
| parent | 56386f6424f242cff46e2cfd7be44624cd37dce1 (diff) | |
Merge master.kernel.org:/pub/scm/linux/kernel/git/lethal/sh-2.6
* master.kernel.org:/pub/scm/linux/kernel/git/lethal/sh-2.6: (26 commits)
sh: intc - add support for SH7750 and its variants
sh: Move entry point code to .text.head.
sh: heartbeat: Shut up resource size warning.
sh: update r2d defconfig and fix SH7751R pci compliation
sh: Many symbol exports for nommu allmodconfig.
sh: zero terminate 8250 platform data for r2d board
sh: cpufreq: Fix up the build for SH-2.
sh: Make on-chip DMA channel selection explicit.
sh: Fix up CPU dependencies for on-chip DMAC.
sh: cpufreq: clock framework support.
sh: Support rate rounding for SH7722 FRQCR clocks.
sh: Implement clk_round_rate() in the clock framework.
sh: Fix up PCI section mismatch warnings.
sh: Wire up fallocate() syscall.
sh: intc - add support for 7780
sh: intc - improve group support
sh: Fix up SH-3 and SH-4 driver dependencies.
sh: push-switch: Correct license string.
sh: cpufreq: Fix driver dependencies and flag as broken.
sh: IPR/INTC2 IRQ setup consolidation.
...
Diffstat (limited to 'arch/sh/kernel/cpu/sh4a/clock-sh7722.c')
| -rw-r--r-- | arch/sh/kernel/cpu/sh4a/clock-sh7722.c | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/arch/sh/kernel/cpu/sh4a/clock-sh7722.c b/arch/sh/kernel/cpu/sh4a/clock-sh7722.c index 51b386d454d..a0fd8bb21f7 100644 --- a/arch/sh/kernel/cpu/sh4a/clock-sh7722.c +++ b/arch/sh/kernel/cpu/sh4a/clock-sh7722.c @@ -387,9 +387,24 @@ out_err: return err; } +static long sh7722_frqcr_round_rate(struct clk *clk, unsigned long rate) +{ + unsigned long parent_rate = clk->parent->rate; + int div; + + /* look for multiplier/divisor pair */ + div = sh7722_find_divisors(parent_rate, rate); + if (div < 0) + return clk->rate; + + /* calculate new value of clock rate */ + return parent_rate * 2 / div; +} + static struct clk_ops sh7722_frqcr_clk_ops = { .recalc = sh7722_frqcr_recalc, .set_rate = sh7722_frqcr_set_rate, + .round_rate = sh7722_frqcr_round_rate, }; /* |