[RFC PATCH v1 10/21] clocksource/timer-riscv: ACPI: Add timer_cannot_wakeup_cpu

Sunil V L
2023-08-03T18:00:57Z

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 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();
}

--
2.39.2