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| author | Fu Wei <fu.wei@linaro.org> | 2017-04-01 01:51:03 +0800 |
|---|---|---|
| committer | Mark Rutland <mark.rutland@arm.com> | 2017-04-19 16:59:59 +0100 |
| commit | a712c3ed9b8a4565a200f3e8e09c42079b1666b3 (patch) | |
| tree | 82353265fc016712c4fa008b30d8282c25368d84 /drivers/clocksource | |
| parent | f79d209405fada700047245ed1a152bab8d6535e (diff) | |
| download | linux-a712c3ed9b8a4565a200f3e8e09c42079b1666b3.tar.gz | |
acpi/arm64: Add memory-mapped timer support in GTDT driver
On platforms booting with ACPI, architected memory-mapped timers' configuration data is provided by firmware through the ACPI GTDT static table. The clocksource architected timer kernel driver requires a firmware interface to collect timer configuration and configure its driver. this infrastructure is present for device tree systems, but it is missing on systems booting with ACPI. Implement the kernel infrastructure required to parse the static ACPI GTDT table so that the architected timer clocksource driver can make use of it on systems booting with ACPI, therefore enabling the corresponding timers configuration. Signed-off-by: Fu Wei <fu.wei@linaro.org> Signed-off-by: Hanjun Guo <hanjun.guo@linaro.org> Acked-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> [Mark: restructure error handling] Signed-off-by: Mark Rutland <mark.rutland@arm.com>
Diffstat (limited to 'drivers/clocksource')
0 files changed, 0 insertions, 0 deletions