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path: root/drivers/cpufreq/s3c64xx-cpufreq.c
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2011-10-31cpufreq: Fix build of s3c64xx cpufreq driver for header changeMark Brown
The header change has removed an implicit include of module.h, breaking the build due to the use of THIS_MODULE. Fix that. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
2011-07-13[CPUFREQ] S3C6410: Add some lower frequencies for 800MHz base clock operationMark Brown
By extension from the 667MHz based clocks currently supported add 100MHz and 200MHz operating points. Due to a lack of documentation these have not been confirmed as supported but by extension from the existing frequencies they should be OK, and I've given them quite a bit of runtime testing. The major risk is synchronization with the non-ARM clocks but as we can't currently scale the ARM PLL the risk should be relatively low. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Acked-by: Kukjin Kim <kgene.kim@samsung.com> Signed-off-by: Dave Jones <davej@redhat.com>
2011-07-13[CPUFREQ] S3C64xx: Notify transition complete as soon as frequency changedMark Brown
The CPUFREQ_POSTCHANGE notification is used to update things that depend on the system clock rates. Since this may include the interfaces used to talk to the regulators do the notification before we try to update regulators to reflect lowered system clock rate. The voltage scaling is just a power optimisation and may not happen at all so there's no concern about it not having completed. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Acked-by: Kukjin Kim <kgene.kim@samsung.com> Signed-off-by: Dave Jones <davej@redhat.com>
2011-07-13[CPUFREQ] S3C6410: Support 800MHz operation in cpufreqMark Brown
At least some newer S3C6410 silicon supports operation up to 800MHz rather than just 667MHz. Unfortunately I don't have access to any of documentation of this other than some running systems, add a new cpufreq table entry for this based on the behaviour of those systems. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Acked-by: Kukjin Kim <kgene.kim@samsung.com> Signed-off-by: Dave Jones <davej@redhat.com>
2011-07-13[CPUFREQ] Move compile for S3C64XX cpufreq to /drivers/cpufreqKukjin Kim
Cc: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com> Signed-off-by: Dave Jones <davej@redhat.com>