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authorSunil V L <sunilvl@ventanamicro.com>2023-09-27 20:00:15 +0300
committerDaniel Lezcano <daniel.lezcano@linaro.org>2023-10-11 13:06:41 +0300
commitd7f546c751e8c873302331af6a203ee61f894e9d (patch)
tree21e621a7c6b6729af3a5ee4c40f2ed24015488cf /drivers/clocksource
parentfd73c011a123a66d88998f356c920d33d87524cf (diff)
downloadlinux-d7f546c751e8c873302331af6a203ee61f894e9d.tar.xz
clocksource/timer-riscv: ACPI: Add timer_cannot_wakeup_cpu
The timer capability to wakeup the cpu irrespective of its idle state is provided by the flag in RHCT. Update the timer code to set this flag. Signed-off-by: Sunil V L <sunilvl@ventanamicro.com> Reviewed-by: Conor Dooley <conor.dooley@microchip.com> Reviewed-by: Andrew Jones <ajones@ventanamicro.com> Reviewed-by: Samuel Holland <samuel.holland@sifive.com> Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org> Link: https://lore.kernel.org/r/20230927170015.295232-5-sunilvl@ventanamicro.com
Diffstat (limited to 'drivers/clocksource')
-rw-r--r--drivers/clocksource/timer-riscv.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/clocksource/timer-riscv.c b/drivers/clocksource/timer-riscv.c
index da3071b387eb..50198657230e 100644
--- a/drivers/clocksource/timer-riscv.c
+++ b/drivers/clocksource/timer-riscv.c
@@ -212,6 +212,10 @@ TIMER_OF_DECLARE(riscv_timer, "riscv", riscv_timer_init_dt);
#ifdef CONFIG_ACPI
static int __init riscv_timer_acpi_init(struct acpi_table_header *table)
{
+ struct acpi_table_rhct *rhct = (struct acpi_table_rhct *)table;
+
+ riscv_timer_cannot_wake_cpu = rhct->flags & ACPI_RHCT_TIMER_CANNOT_WAKEUP_CPU;
+
return riscv_timer_init_common();
}