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From:   Sunil V L <sunilvl@ventanamicro.com>
To:     linux-riscv@lists.infradead.org, linux-kernel@vger.kernel.org,
        linux-acpi@vger.kernel.org
Cc:     Paul Walmsley <paul.walmsley@sifive.com>,
        Palmer Dabbelt <palmer@dabbelt.com>,
        Albert Ou <aou@eecs.berkeley.edu>,
        "Rafael J . Wysocki" <rafael@kernel.org>,
        Len Brown <lenb@kernel.org>,
        Daniel Lezcano <daniel.lezcano@linaro.org>,
        Thomas Gleixner <tglx@linutronix.de>,
        Andrew Jones <ajones@ventanamicro.com>,
        Conor Dooley <conor.dooley@microchip.com>,
        Anup Patel <apatel@ventanamicro.com>,
        Ard Biesheuvel <ardb@kernel.org>,
        Alexandre Ghiti <alexghiti@rivosinc.com>,
        Andy Shevchenko <andriy.shevchenko@linux.intel.com>,
        Atish Kumar Patra <atishp@rivosinc.com>,
        Sunil V L <sunilvl@ventanamicro.com>
Subject: [PATCH v2 -next 4/4] clocksource/timer-riscv: ACPI: Add timer_cannot_wakeup_cpu
Date:   Wed, 27 Sep 2023 22:30:15 +0530
Message-Id: <20230927170015.295232-5-sunilvl@ventanamicro.com>
In-Reply-To: <20230927170015.295232-1-sunilvl@ventanamicro.com>
References: <20230927170015.295232-1-sunilvl@ventanamicro.com>
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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