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

Andrew Jones
2023-10-04T08:38:36Z

On Wed, Sep 27, 2023 at 10:30:15PM +0530, Sunil V L wrote:
> 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
>

Reviewed-by: Andrew Jones <ajones@ventanamicro.com>