Re: [PATCH v2 3/6] clocksource: exynos_mct: Add arch_timer cooperation mode for ARM64

Krzysztof Kozlowski
2018-10-16T13:12:07Z

On Mon, 15 Oct 2018 at 14:31, Marek Szyprowski <m.szyprowski@samsung.com> wrote:
>
> To get ARM Architected Timers working on Samsung Exynos SoCs, one has to
> first configure and enable Exynos Multi-Core Timer, because they both
> share some common hardware blocks. This patch adds a mode of cooperation
> with arch_timer driver, so kernel can use CP15 based timer interface via
> arch_timer driver, which is mandatory on ARM64. In such mode driver only
> configures MCT registers and starts the timer but don't register any
> clocksource or events in the system. Those are left to be handled by
> arch_timer driver.
>
> Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
> ---
> drivers/clocksource/exynos_mct.c | 52 +++++++++++++++++++++-----------
> 1 file changed, 35 insertions(+), 17 deletions(-)

Reviewed-by: Krzysztof Kozlowski <krzk@kernel.org>

Best regards,
Krzysztof