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arm64: exynos: Enable Exynos Multi-Core Timer driver

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Some ARM64 Exynos SoCs have MCT timer block, e.g. Exynos850 and
Exynos5433. CLKSRC_EXYNOS_MCT option is not visible unless COMPILE_TEST
is enabled. Select CLKSRC_EXYNOS_MCT option for ARM64 ARCH_EXYNOS like
it's done in arch/arm/mach-exynos/Kconfig, to enable MCT timer support
for ARM64 Exynos SoCs.

Even though ARM architected timer is available on all ARM64 SoCs, and
used for managing timer hardware and clock source events, MCT timer
still can be used as a wakeup source, as stated in commitae460fd9164b
("clocksource/drivers/exynos_mct: Prioritise Arm arch timer on arm64").
It's also nice to be able to test available MCT IP-core.

Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Sam Protsenko <semen.protsenko@linaro.org>
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
Tested-by: Chanwoo Choi <cw00.choi@samsung.com>
Reviewed-by: Krzysztof Kozlowski <krzk@kernel.org>
Reviewed-by: Chanwoo Choi <cw00.choi@samsung.com>
Link: https://lore.kernel.org/r/20211101193531.15078-3-semen.protsenko@linaro.org
Link: https://lore.kernel.org/r/20211220165004.17005-2-krzysztof.kozlowski@canonical.com'
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
This commit is contained in:
Marek Szyprowski 2021-12-20 17:50:04 +01:00 committed by Arnd Bergmann
parent e91aad4b60
commit ce96a96468
1 changed files with 1 additions and 0 deletions
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1
arch/arm64/Kconfig.platforms
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@ -89,6 +89,7 @@ config ARCH_BRCMSTB
config ARCH_EXYNOS
bool "ARMv8 based Samsung Exynos SoC family"
select COMMON_CLK_SAMSUNG
select CLKSRC_EXYNOS_MCT
select EXYNOS_PM_DOMAINS if PM_GENERIC_DOMAINS
select EXYNOS_PMU
select PINCTRL