On 06/12/2013 02:15 AM, Viresh Kumar wrote:
> ARCH_TEGRA selects ARCH_HAS_CPUFREQ, so CPUFREQ will be enabled for all
> variants
> of TEGRA. CPUFreq driver for tegra is enabled if ARCH_TEGRA is selected.
> Driver
> uses APIs from freq_table.c and so we must select CPU_FREQ_TABLE for
> ARCH_TEGRA.
>
> This also removes select CPU_FREQ_TABLE from individual tegra variants.
I guess the real issue here is that drivers/cpufreq/tegra-cpufreq.c 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.
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