diff mbox series

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

Message ID 20230927170015.295232-5-sunilvl@ventanamicro.com
State Accepted
Commit d7f546c751e8c873302331af6a203ee61f894e9d
Headers show
Series RISC-V: ACPI improvements | expand

Commit Message

Sunil V L Sept. 27, 2023, 5 p.m. UTC 
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(+)

Comments

Conor Dooley Oct. 2, 2023, 3:46 p.m. UTC | #1 
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>

Reviewed-by: Conor Dooley <conor.dooley@microchip.com>

Thanks,
Conor.

> ---
>  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
> 
> 
> _______________________________________________
> linux-riscv mailing list
> linux-riscv@lists.infradead.org
> http://lists.infradead.org/mailman/listinfo/linux-riscv
Andrew Jones Oct. 4, 2023, 8:38 a.m. UTC | #2 
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>
Daniel Lezcano Oct. 11, 2023, 9:14 a.m. UTC | #3 
On 27/09/2023 19:00, 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>
> ---

Applied, thanks
diff mbox series

Patch

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();
 }