diff mbox series

[V2,16/21] clocksource/timer-riscv: Add ACPI support

Message ID	20230216182043.1946553-17-sunilvl@ventanamicro.com
State	New
Headers	Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) client-ip=2620:137:e000::1:20; From: Sunil V L <sunilvl@ventanamicro.com> To: Palmer Dabbelt <palmer@dabbelt.com>, Albert Ou <aou@eecs.berkeley.edu>, Paul Walmsley <paul.walmsley@sifive.com>, "Rafael J . Wysocki" <rafael@kernel.org>, Len Brown <lenb@kernel.org>, Thomas Gleixner <tglx@linutronix.de>, Marc Zyngier <maz@kernel.org>, Jonathan Corbet <corbet@lwn.net> Cc: linux-riscv@lists.infradead.org, linux-acpi@vger.kernel.org, linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org, Conor Dooley <conor.dooley@microchip.com>, Andrew Jones <ajones@ventanamicro.com>, Anup Patel <apatel@ventanamicro.com>, Atish Patra <atishp@rivosinc.com>, Sunil V L <sunilvl@ventanamicro.com>, "Rafael J . Wysocki" <rafael.j.wysocki@intel.com> Subject: [PATCH V2 16/21] clocksource/timer-riscv: Add ACPI support Date: Thu, 16 Feb 2023 23:50:38 +0530 Message-Id: <20230216182043.1946553-17-sunilvl@ventanamicro.com> In-Reply-To: <20230216182043.1946553-1-sunilvl@ventanamicro.com> References: <20230216182043.1946553-1-sunilvl@ventanamicro.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk
Series	Add basic ACPI support for RISC-V \| [V2,00/21] Add basic ACPI support for RISC-V [V2,01/21] riscv: move sbi_init() earlier before jump_label_init() [V2,02/21] ACPICA: MADT: Add RISC-V INTC interrupt controller [V2,03/21] ACPICA: Add structure definitions for RISC-V RHCT [V2,04/21] RISC-V: Add support to build the ACPI core [V2,05/21] ACPI: Kconfig: Enable ACPI_PROCESSOR for RISC-V [V2,06/21] ACPI: OSL: Make should_use_kmap() 0 for RISC-V. [V2,07/21] ACPI: processor_core: RISC-V: Enable mapping processor to the hartid [V2,08/21] drivers/acpi: RISC-V: Add RHCT related code [V2,09/21] RISC-V: smpboot: Create wrapper smp_setup() [V2,10/21] RISC-V: smpboot: Add ACPI support in smp_setup() [V2,11/21] RISC-V: ACPI: Add a function to retrieve the hartid [V2,12/21] RISC-V: cpufeature: Add ACPI support in riscv_fill_hwcap() [V2,13/21] RISC-V: cpu: Enable cpuinfo for ACPI systems [V2,14/21] irqchip/riscv-intc: Add ACPI support [V2,15/21] clocksource/timer-riscv: Refactor riscv_timer_init_dt() [V2,16/21] clocksource/timer-riscv: Add ACPI support [V2,17/21] RISC-V: time.c: Add ACPI support for time_init() [V2,18/21] RISC-V: Add ACPI initialization in setup_arch() [V2,19/21] RISC-V: Enable ACPI in defconfig [V2,20/21] MAINTAINERS: Add entry for drivers/acpi/riscv [V2,21/21] Documentation/kernel-parameters.txt: Add RISC-V for ACPI parameter

Commit Message

Sunil V L Feb. 16, 2023, 6:20 p.m. UTC

  Initialize the timer driver based on RHCT table on ACPI based
platforms.

Signed-off-by: Sunil V L <sunilvl@ventanamicro.com>
Acked-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/clocksource/timer-riscv.c | 11 +++++++++++
 1 file changed, 11 insertions(+)

Comments

Andrew Jones Feb. 20, 2023, 7:51 p.m. UTC | #1

On Thu, Feb 16, 2023 at 11:50:38PM +0530, Sunil V L wrote:
> Initialize the timer driver based on RHCT table on ACPI based
> platforms.
> 
> Signed-off-by: Sunil V L <sunilvl@ventanamicro.com>
> Acked-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
> ---
>  drivers/clocksource/timer-riscv.c | 11 +++++++++++
>  1 file changed, 11 insertions(+)
> 
> diff --git a/drivers/clocksource/timer-riscv.c b/drivers/clocksource/timer-riscv.c
> index 2ae8e300d303..5fb0eac52bdd 100644
> --- a/drivers/clocksource/timer-riscv.c
> +++ b/drivers/clocksource/timer-riscv.c
> @@ -10,6 +10,7 @@
>  
>  #define pr_fmt(fmt) "riscv-timer: " fmt
>  
> +#include <linux/acpi.h>
>  #include <linux/clocksource.h>
>  #include <linux/clockchips.h>
>  #include <linux/cpu.h>
> @@ -201,3 +202,13 @@ static int __init riscv_timer_init_dt(struct device_node *n)
>  }
>  
>  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)
> +{
> +	return riscv_timer_init_common();
> +}
> +
> +TIMER_ACPI_DECLARE(aclint_mtimer, ACPI_SIG_RHCT, riscv_timer_acpi_init);
> +
> +#endif
> -- 
> 2.34.1
>

This could probably be squashed into the last patch, but anyway

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

Thanks,
drew

diff mbox series

Patch

diff --git a/drivers/clocksource/timer-riscv.c b/drivers/clocksource/timer-riscv.c
index 2ae8e300d303..5fb0eac52bdd 100644
--- a/drivers/clocksource/timer-riscv.c
+++ b/drivers/clocksource/timer-riscv.c
@@ -10,6 +10,7 @@ 
 
 #define pr_fmt(fmt) "riscv-timer: " fmt
 
+#include <linux/acpi.h>
 #include <linux/clocksource.h>
 #include <linux/clockchips.h>
 #include <linux/cpu.h>
@@ -201,3 +202,13 @@  static int __init riscv_timer_init_dt(struct device_node *n)
 }
 
 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)
+{
+	return riscv_timer_init_common();
+}
+
+TIMER_ACPI_DECLARE(aclint_mtimer, ACPI_SIG_RHCT, riscv_timer_acpi_init);
+
+#endif