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Paul Walmsley 85a5f78d2b [ARM] OMAP3 clock: optimize DPLL rate rounding algorithm 
The previous DPLL rate rounding algorithm counted the divider (N) down
from the maximum to 1.  Since we currently use a broad DPLL rate
tolerance, and lower N values are more power-efficient, we can often
bypass several iterations through the loop by counting N upwards from
1.

Peter de Schrijver <peter.de-schrijver@nokia.com> put up with several
test cycles of this patch - thanks Peter.

linux-omap source commit is 6f6d82bb2f80fa20a841ac3e95a6f44a5a156188.

Signed-off-by: Paul Walmsley <paul@pwsan.com>
Cc: Peter de Schrijver <peter.de-schrijver@nokia.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2009-02-08 17:50:34 +00:00
..
board-2430sdp.c omap mmc: Add low-level initialization for hsmmc controller 2008-12-10 17:37:17 -08:00
board-apollon.c ARM: OMAP: Fix gpio by switching to generic gpio calls, v2 2009-01-15 13:09:52 +02:00
board-generic.c omap mmc: Remove broken MMC init code 2008-12-10 17:37:16 -08:00
board-h4.c omap mmc: Remove broken MMC init code 2008-12-10 17:37:16 -08:00
board-ldp.c ARM: OMAP: Fix gpio by switching to generic gpio calls, v2 2009-01-15 13:09:52 +02:00
board-omap3beagle.c ARM: OMAP: Fix compile for beagle 2009-01-15 13:09:53 +02:00
board-omap3pandora.c omap mmc: Add low-level initialization for hsmmc controller 2008-12-10 17:37:17 -08:00
board-overo.c omap mmc: Add low-level initialization for hsmmc controller 2008-12-10 17:37:17 -08:00
clock24xx.c [ARM] OMAP2: Implement CPUfreq frequency table based on PRCM table 2009-02-08 17:50:28 +00:00
clock24xx.h [ARM] OMAP24xx clock: add missing SSI L4 interface clock 2009-02-08 17:50:25 +00:00
clock34xx.c [ARM] OMAP3 clock: convert dpll_data.idlest_bit to idlest_mask 2009-02-08 17:50:33 +00:00
clock34xx.h [ARM] OMAP3 clock: convert dpll_data.idlest_bit to idlest_mask 2009-02-08 17:50:33 +00:00
clock.c [ARM] OMAP3 clock: optimize DPLL rate rounding algorithm 2009-02-08 17:50:34 +00:00
clock.h [ARM] OMAP: Fix sparse, checkpatch warnings in OMAP2/3 PRCM/PM code 2009-02-08 17:50:24 +00:00
clockdomain.c [ARM] OMAP2/3 clockdomains: autodeps should respect platform flags 2009-02-08 17:50:31 +00:00
clockdomains.h [ARM] OMAP3: PM: Emu_pwrdm is switched off by hardware even when sdti is in use 2009-02-08 17:50:32 +00:00
cm-regbits-24xx.h ARM: OMAP2: Clockdomain: Encode OMAP2/3 clockdomains 2008-08-19 11:08:44 +03:00
cm-regbits-34xx.h [ARM] OMAP: Add CSI2 clock struct for handling it with clock API 2009-02-08 17:50:27 +00:00
cm.h [ARM] omap: Fix IO_ADDRESS() macros 2008-09-05 17:02:31 +01:00
control.c [ARM] Move include/asm-arm/arch-* to arch/arm/*/include/mach 2008-08-07 09:55:48 +01:00
devices.c [ARM] omap: hsmmc: new short connection id names 2009-02-08 17:50:23 +00:00
gpmc.c ARM: OMAP: Fix compiler warnings in gpmc.c 2008-11-04 13:35:06 -08:00
id.c ARM: OMAP: Fix omap34xx revision detection for ES3.1 2009-01-29 08:57:16 -08:00
io.c Merge branch 'omap-all' into devel 2008-10-14 22:24:42 +01:00
irq.c ARM: OMAP: Mask interrupts when disabling interrupts, v2 2009-01-29 09:27:00 -08:00
Kconfig ARM: OMAP3: Add basic support for Pandora handheld console 2008-12-10 17:36:54 -08:00
mailbox.c [ARM] Convert asm/io.h to linux/io.h 2008-09-06 12:10:45 +01:00
Makefile omap mmc: Add low-level initialization for hsmmc controller 2008-12-10 17:37:17 -08:00
Makefile.boot
mcbsp.c [ARM] omap: mcbsp: convert to use fck/ick clocks directly 2009-02-08 17:50:19 +00:00
memory.c Merge branch 'omap-all' into devel 2008-10-14 22:24:42 +01:00
memory.h ARM: OMAP2: Misc updates from linux-omap tree 2008-10-06 15:49:36 +03:00
mmc-twl4030.c omap mmc: Add low-level initialization for hsmmc controller 2008-12-10 17:37:17 -08:00
mmc-twl4030.h omap mmc: Add low-level initialization for hsmmc controller 2008-12-10 17:37:17 -08:00
mux.c ARM: OMAP3: Pin multiplexing updates for 24xx and 34xx 2008-12-10 17:36:54 -08:00
pm.c [ARM] OMAP: Fix sparse, checkpatch warnings in OMAP2/3 PRCM/PM code 2009-02-08 17:50:24 +00:00
powerdomain.c [ARM] OMAP3 pwrdm: add hardware save-and-restore (SAR) support 2008-08-21 21:26:39 +01:00
powerdomains24xx.h ARM: OMAP2: Powerdomain: Add OMAP2 powerdomains 2008-08-19 11:08:42 +03:00
powerdomains34xx.h [ARM] OMAP3 powerdomains: remove RET from SGX power states list 2009-02-08 17:50:30 +00:00
powerdomains.h [ARM] OMAP3 PRCM: add DPLL1-5 powerdomains, clockdomains; mark clocks 2009-02-08 17:50:30 +00:00
prcm-common.h ARM: OMAP: Powerdomain: Add OMAP3 powerdomains 2008-08-19 11:08:43 +03:00
prcm.c [ARM] Move include/asm-arm/arch-* to arch/arm/*/include/mach 2008-08-07 09:55:48 +01:00
prm-regbits-24xx.h ARM: OMAP2: Powerdomain: Add OMAP2 powerdomains 2008-08-19 11:08:42 +03:00
prm-regbits-34xx.h ARM: OMAP: Powerdomain: Add OMAP3 powerdomains 2008-08-19 11:08:43 +03:00
prm.h Merge unstable branch 'omap-rmk' 2008-10-03 11:52:33 +01:00
sdrc.h [ARM] Move include/asm-arm/arch-* to arch/arm/*/include/mach 2008-08-07 09:55:48 +01:00
serial.c Merge branch 'omap-all' into devel 2008-10-14 22:24:42 +01:00
sleep24xx.S ARM: OMAP: fix fault in enter_full_retention() 2009-01-29 09:27:00 -08:00
sram34xx.S ARM: OMAP3: Add minimal omap3430 support 2008-10-09 17:51:41 +03:00
sram242x.S [ARM] Move include/asm-arm/arch-* to arch/arm/*/include/mach 2008-08-07 09:55:48 +01:00
sram243x.S [ARM] Move include/asm-arm/arch-* to arch/arm/*/include/mach 2008-08-07 09:55:48 +01:00
timer-gp.c ARM: OMAP: gptimer min_delta_ns corrected 2009-01-29 09:27:00 -08:00
usb-tusb6010.c ARM: OMAP: Switch to gpio_request/free calls 2008-12-10 17:35:30 -08:00