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cpufreq: Add Loongson machine dependencies

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The MIPS loongson cpufreq drivers don't build unless configured for the
correct machine type, due to dependency on machine specific architecture
headers and symbols in machine specific platform code.

More specifically loongson1-cpufreq.c uses RST_CPU_EN and RST_CPU,
neither of which is defined in asm/mach-loongson32/regs-clk.h unless
CONFIG_LOONGSON1_LS1B=y, and loongson2_cpufreq.c references
loongson2_clockmod_table[], which is only defined in
arch/mips/loongson64/lemote-2f/clock.c, i.e. when
CONFIG_LEMOTE_MACH2F=y.

Add these dependencies to Kconfig to avoid randconfig / allyesconfig
build failures (e.g. when based on BMIPS which also has a cpufreq
driver).

Signed-off-by: James Hogan <jhogan@kernel.org>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
This commit is contained in:
James Hogan 2017-11-15 21:17:55 +00:00 committed by Rafael J. Wysocki
parent e75080f185
commit 0d307935fe
1 changed files with 2 additions and 0 deletions
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2
drivers/cpufreq/Kconfig
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@ -275,6 +275,7 @@ config BMIPS_CPUFREQ
config LOONGSON2_CPUFREQ
tristate "Loongson2 CPUFreq Driver"
depends on LEMOTE_MACH2F
help
This option adds a CPUFreq driver for loongson processors which
support software configurable cpu frequency.
@ -287,6 +288,7 @@ config LOONGSON2_CPUFREQ
config LOONGSON1_CPUFREQ
tristate "Loongson1 CPUFreq Driver"
depends on LOONGSON1_LS1B
help
This option adds a CPUFreq driver for loongson1 processors which
support software configurable cpu frequency.