[PATCH v2 -next 4/4] clocksource/timer-riscv: ACPI: Add timer_cannot_wakeup_cpu

Sunil V L
2023-09-27T17:00:57Z

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>
---
drivers/clocksource/timer-riscv.c | 4 ++++
1 file changed, 4 insertions(+)

diff --git a/drivers/clocksource/timer-riscv.c b/drivers/clocksource/timer-riscv.c
index 9c8f3e2decc2..06f5bad3c3e0 100644
--- a/drivers/clocksource/timer-riscv.c
+++ b/drivers/clocksource/timer-riscv.c
@@ -225,6 +225,10 @@ 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();
}

--
2.39.2