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| author |   Viresh Kumar <viresh.kumar@linaro.org> | 2013-06-12 12:05:48 +0530 |
|---|---|---|
| committer | Viresh Kumar <viresh.kumar@linaro.org> | 2013-06-18 13:53:11 +0530 |
| commit | dbb8d76e5ed9bb7f33a092f4aa5b28d8b1c872a4 (patch) | |
| tree | db52de2f90211017ac35fe88b4e34a9a731f132f /drivers/cpufreq | |
| parent | cpufreq: S3C2416/S3C64XX: select CPU_FREQ_TABLE (diff) | |
| download | linux-dev-dbb8d76e5ed9bb7f33a092f4aa5b28d8b1c872a4.tar.xz linux-dev-dbb8d76e5ed9bb7f33a092f4aa5b28d8b1c872a4.zip | |
cpufreq: tegra: create CONFIG_ARM_TEGRA_CPUFREQ
currently Tegra cpufreq driver gets built based on ARCH_TEGRA, which doesn't
depend on nor select CPU_FREQ itself, so:
select CPU_FREQ_TABLE if CPU_FREQ
... isn't guaranteed to fire.
The correct solution seems to be:
* Add CONFIG_ARM_TEGRA_CPUFREQ to drivers/cpufreq/Kconfig.arm.
* Make that Kconfig option selct CPU_FREQ_TABLE.
* Make that Kconfig option be def_bool ARCH_TEGRA.
* Modify drivers/cpufreq/Makefile to build tegra-cpufreq.c based on that.
* Remove all the cpufreq-related stuff from arch/arm/mach-tegra/Kconfig.
That way, tegra-cpufreq.c can't be built if !CPU_FREQ, and Tegra's
cpufreq works the same way as all the other cpufreq drivers.
This patch does it.
Suggested-by: Stephen Warren <swarren@nvidia.com>
Tested-by: Stephen Warren <swarren@nvidia.com>
Acked-by: Stephen Warren <swarren@nvidia.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Diffstat (limited to 'drivers/cpufreq')
| -rw-r--r-- | drivers/cpufreq/Kconfig.arm | 8 | ||||
| -rw-r--r-- | drivers/cpufreq/Makefile | 2 |
2 files changed, 9 insertions, 1 deletions
diff --git a/drivers/cpufreq/Kconfig.arm b/drivers/cpufreq/Kconfig.arm index d52261b22b55..5085427eb29d 100644 --- a/drivers/cpufreq/Kconfig.arm +++ b/drivers/cpufreq/Kconfig.arm @@ -154,3 +154,11 @@ config ARM_SPEAR_CPUFREQ default y help This adds the CPUFreq driver support for SPEAr SOCs. + +config ARM_TEGRA_CPUFREQ + bool "TEGRA CPUFreq support" + depends on ARCH_TEGRA + select CPU_FREQ_TABLE + default y + help + This adds the CPUFreq driver support for TEGRA SOCs. diff --git a/drivers/cpufreq/Makefile b/drivers/cpufreq/Makefile index 13c3f831d3dc..9c873e778ee0 100644 --- a/drivers/cpufreq/Makefile +++ b/drivers/cpufreq/Makefile @@ -71,7 +71,7 @@ obj-$(CONFIG_ARM_S5PV210_CPUFREQ) += s5pv210-cpufreq.o obj-$(CONFIG_ARM_SA1100_CPUFREQ) += sa1100-cpufreq.o obj-$(CONFIG_ARM_SA1110_CPUFREQ) += sa1110-cpufreq.o obj-$(CONFIG_ARM_SPEAR_CPUFREQ) += spear-cpufreq.o -obj-$(CONFIG_ARCH_TEGRA) += tegra-cpufreq.o +obj-$(CONFIG_ARM_TEGRA_CPUFREQ) += tegra-cpufreq.o ################################################################################## # PowerPC platform drivers |