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* cpufreq: SPEAr: Add CPUFreq driverDeepak Sikri2012-11-271-0/+7
| | | | | | | | | | SPEAr is an ARM based family of SoCs. This patch adds in support of cpufreq driver for SPEAr SoCs. It is supported via DT only and so bindings are present in binding document. Signed-off-by: Deepak Sikri <deepak.sikri@st.com> Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
* cpufreq: OMAP: fix build errors: depends on ARCH_OMAP2PLUSKevin Hilman2012-04-131-0/+1
| | | | | | | | | | | | | | | | | | | The OMAP driver needs a 'depends on ARCH_OMAP2PLUS' since it only builds for OMAP2+ platforms. This 'depends on' was in the original patch from Russell King, but was erroneously removed by me when making this option user-selectable in commit b09db45c (cpufreq: OMAP driver depends CPUfreq tables.) This patch remedies that. Apologies to Russell King for breaking his originally working patch. Also, thanks to Grazvydas Ignotas for reporting the same problem. Cc: Russell King <rmk+kernel@arm.linux.org.uk> Cc: Grazvydas Ignotas <notasas@gmail.com> Signed-off-by: Kevin Hilman <khilman@ti.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* EXYNOS: fix dependency for EXYNOS_CPUFREQKukjin Kim2012-04-041-7/+3
| | | | | | | | | | This fixes the CPUFREQ dependency for regarding EXYNOS SoCs such as EXYNOS4210, EXYNOS4X12 and EXYNOS5250. Its cpufreq driver should be built with selection of SoC arch part. Reported-by: Russell King <rmk+kernel@arm.linux.org.uk> Acked-by: Dave Jones <davej@redhat.com> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
* Merge branch 'next' of ↵Linus Torvalds2012-03-231-0/+37
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/davej/cpufreq Pull cpufreq updates for 3.4 from Dave Jones: new drivers and some fixes. * 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/davej/cpufreq: provide disable_cpufreq() function to disable the API. EXYNOS5250: Add support cpufreq for EXYNOS5250 EXYNOS4X12: Add support cpufreq for EXYNOS4X12 [CPUFREQ] CPUfreq ondemand: update sampling rate without waiting for next sampling [CPUFREQ] Add S3C2416/S3C2450 cpufreq driver [CPUFREQ] Fix exposure of ARM_EXYNOS4210_CPUFREQ [CPUFREQ] EXYNOS4210: update the name of EXYNOS clock register [CPUFREQ] EXYNOS: Initialize locking_frequency with initial frequency [CPUFREQ] s3c64xx: Fix mis-cherry pick of VDDINT Fix up trivial conflicts in Kconfig and Makefile due to just changes next to each other (OMAP2PLUS changes vs some new EXYNOS cpufreq drivers).
| * EXYNOS5250: Add support cpufreq for EXYNOS5250Jaecheol Lee2012-03-141-0/+7
| | | | | | | | | | | | | | | | | | | | This patch adds support cpufreq for EXYNOS5250 SoC. Basically, the exynos-cpufreq.c is used commonly and exynos5250-cpufreq.c is used for EXYNOS5250(two Cortex-A15 cores) SoC. Signed-off-by: Jaecheol Lee <jc.lee@samsung.com> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com> Signed-off-by: Dave Jones <davej@redhat.com>
| * EXYNOS4X12: Add support cpufreq for EXYNOS4X12Jaecheol Lee2012-03-141-0/+7
| | | | | | | | | | | | | | | | | | | | | | This patch adds support cpufreq for EXYNOS4X12 SoCs. Basically, the exynos-cpufreq.c is used commonly and exynos4x12-cpufreq.c is used for EXYNOS4212(two Cortex-A9 cores) and EXYNOS4412(four Cortex-A9 cores) SoCs. Signed-off-by: Jaecheol Lee <jc.lee@samsung.com> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com> Signed-off-by: Dave Jones <davej@redhat.com>
| * [CPUFREQ] Add S3C2416/S3C2450 cpufreq driverHeiko Stübner2012-02-291-0/+22
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The S3C2416/S3C2450 SoCs support two sources for the armclk. The first source is the so called armdiv which divides the msysclk down to provide necessary cpu rates. In this mode the core voltage must be always at 1.3V. The frequency from the armdiv is not allowed to be lower than the hclk frequency. In the second mode the armclk can be sourced directly from the hclk in the so called "dynamic voltags scaling" (dvs) mode. Here the armdiv isn't used at all. Also in this mode the core voltage may be lowered. Existing hardware and tests with it suggest 1.0V as sufficient. When changing the clock source to the armdiv from the hclk, the SoC shows stability issues if the new frequency is higher than the current hclk frequency. Hence the driver always forces the armdiv to the hclk frequency before the source change and lets the cpufreq issue another set_target call for higher frequencies. To mark the hclk frequency as lower as the corresponding armdiv frequency it is set 1MHz below the real frequency. This lets the cpufreq framework change between 133MHz based on hclk and 133MHz based on armdiv at will. Signed-off-by: Heiko Stuebner <heiko@sntech.de> Tested-by: Andrey Gusakov <dron0gus@gmail.com> Signed-off-by: Dave Jones <davej@redhat.com>
| * [CPUFREQ] Fix exposure of ARM_EXYNOS4210_CPUFREQRussell King2012-02-291-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | exynos4210-cpufreq.c is not buildable on non-exynos builds, so it's pointless allowing this option to be exposed. Fix this by adding a dependency on ARCH_EXYNOS. drivers/cpufreq/exynos4210-cpufreq.c:20:29: error: mach/regs-clock.h: No such file or directory drivers/cpufreq/exynos4210-cpufreq.c:21:26: error: mach/cpufreq.h: No such file or directory Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk> Cc: cpufreq@vger.kernel.org Cc: Kukjin Kim <kgene.kim@samsung.com> Signed-off-by: Dave Jones <davej@redhat.com>
* | cpufreq: OMAP driver depends CPUfreq tablesRussell King2012-02-211-0/+5
|/ | | | | | | | | | The OMAP driver depends on CPUfreq table support for creating a table of frequencies from the OPP layer. Ensure that it's build to avoid link-time errors. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk> [khilman@ti.com: make user-selectable, but default y] Signed-off-by: Kevin Hilman <khilman@ti.com>
* [CPUFREQ] EXYNOS: Make EXYNOS common cpufreq driverJaecheol Lee2012-01-081-4/+11
| | | | | | | | | | | To support various EXYNOS series SoCs commonly, added exynos common structure. exynos-cpufreq.c => EXYNOS series common cpufreq driver exynos4210-cpufreq.c => EXYNOS4210 support cpufreq driver Signed-off-by: Jaecheol Lee <jc.lee@samsung.com> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com> Signed-off-by: Dave Jones <davej@redhat.com>
* [CPUFREQ] Move compile for S3C64XX cpufreq to /drivers/cpufreqKukjin Kim2011-07-131-0/+9
| | | | | | Cc: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com> Signed-off-by: Dave Jones <davej@redhat.com>
* [CPUFREQ] Move ARM Samsung cpufreq drivers to drivers/cpufreq/Kukjin Kim2011-07-131-0/+23
According to discussion of the ARM arch subsystem migration, ARM cpufreq drivers move to drivers/cpufreq. So this patch adds Kconfig.arm for ARM like x86 and adds Samsung S5PV210 and EXYNOS4210 cpufreq driver compile in there. As a note, otherw will be moved. Cc: Dave Jones <davej@redhat.com> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com> Signed-off-by: Dave Jones <davej@redhat.com>
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