acpi/arm64: Add GTDT table parse driver
This patch adds support for parsing arch timer info in GTDT, provides some kernel APIs to parse all the PPIs and always-on info in GTDT and export them. By this driver, we can simplify arm_arch_timer drivers, and separate the ACPI GTDT knowledge from it. Signed-off-by: NFu Wei <fu.wei@linaro.org> Signed-off-by: NHanjun Guo <hanjun.guo@linaro.org> Acked-by: NRafael J. Wysocki <rafael.j.wysocki@intel.com> Tested-by: NXiongfeng Wang <wangxiongfeng2@huawei.com> Reviewed-by: NHanjun Guo <hanjun.guo@linaro.org> Tested-by: NHanjun Guo <hanjun.guo@linaro.org> Acked-by: NLorenzo Pieralisi <lorenzo.pieralisi@arm.com> Signed-off-by: NMark Rutland <mark.rutland@arm.com>
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drivers/acpi/arm64/gtdt.c
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