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:     linux-doc@vger.kernel.org, linux-riscv@lists.infradead.org,
        linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org,
        linux-acpi@vger.kernel.org, linux-pci@vger.kernel.org
Cc:     Jonathan Corbet <corbet@lwn.net>,
        Paul Walmsley <paul.walmsley@sifive.com>,
        Palmer Dabbelt <palmer@dabbelt.com>,
        Albert Ou <aou@eecs.berkeley.edu>,
        Catalin Marinas <catalin.marinas@arm.com>,
        Will Deacon <will@kernel.org>,
        "Rafael J . Wysocki" <rafael@kernel.org>,
        Len Brown <lenb@kernel.org>,
        Andy Shevchenko <andriy.shevchenko@linux.intel.com>,
        Daniel Scally <djrscally@gmail.com>,
        Heikki Krogerus <heikki.krogerus@linux.intel.com>,
        Sakari Ailus <sakari.ailus@linux.intel.com>,
        Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
        Daniel Lezcano <daniel.lezcano@linaro.org>,
        Thomas Gleixner <tglx@linutronix.de>,
        Anup Patel <anup@brainfault.org>,
        Marc Zyngier <maz@kernel.org>,
        Bjorn Helgaas <bhelgaas@google.com>,
        Robert Moore <robert.moore@intel.com>,
        Haibo Xu <haibo1.xu@intel.com>,
        Andrew Jones <ajones@ventanamicro.com>,
        Conor Dooley <conor.dooley@microchip.com>,
        Atish Kumar Patra <atishp@rivosinc.com>,
        Sunil V L <sunilvl@ventanamicro.com>
Subject: [RFC PATCH v1 14/21] ACPI: bus: Add acpi_riscv_init function
Date:   Thu,  3 Aug 2023 23:29:09 +0530
Message-Id: <20230803175916.3174453-15-sunilvl@ventanamicro.com>
In-Reply-To: <20230803175916.3174453-1-sunilvl@ventanamicro.com>
References: <20230803175916.3174453-1-sunilvl@ventanamicro.com>
MIME-Version: 1.0
Content-Transfer-Encoding: 8bit
Precedence: bulk

Add a new function for RISC-V to do any architecture
specific initialization. This function will be used
to create platform devices like APLIC, IMSIC MSI controller,
RISC-V IOMMU etc.

Signed-off-by: Sunil V L <sunilvl@ventanamicro.com>
---
 drivers/acpi/bus.c          |  1 +
 drivers/acpi/riscv/Makefile |  2 +-
 drivers/acpi/riscv/init.c   | 12 ++++++++++++
 include/linux/acpi.h        |  6 ++++++
 4 files changed, 20 insertions(+), 1 deletion(-)
 create mode 100644 drivers/acpi/riscv/init.c

diff --git a/drivers/acpi/bus.c b/drivers/acpi/bus.c
index 2fc2b43a4ed3..9a8c16170a4b 100644
--- a/drivers/acpi/bus.c
+++ b/drivers/acpi/bus.c
@@ -1388,6 +1388,7 @@ static int __init acpi_init(void)
 
 	pci_mmcfg_late_init();
 	acpi_arm_init();
+	acpi_riscv_init();
 	acpi_viot_early_init();
 	acpi_hest_init();
 	acpi_ghes_init();
diff --git a/drivers/acpi/riscv/Makefile b/drivers/acpi/riscv/Makefile
index 8b664190d172..3433a19c421d 100644
--- a/drivers/acpi/riscv/Makefile
+++ b/drivers/acpi/riscv/Makefile
@@ -1,2 +1,2 @@
 # SPDX-License-Identifier: GPL-2.0-only
-obj-y 	+= rhct.o irqchip.o
+obj-y 	+= rhct.o irqchip.o init.o
diff --git a/drivers/acpi/riscv/init.c b/drivers/acpi/riscv/init.c
new file mode 100644
index 000000000000..b5807bbdb171
--- /dev/null
+++ b/drivers/acpi/riscv/init.c
@@ -0,0 +1,12 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright (C) 2023, Ventana Micro Systems Inc
+ *	Author: Sunil V L <sunilvl@ventanamicro.com>
+ *
+ */
+
+#include <linux/acpi.h>
+
+void __init acpi_riscv_init(void)
+{
+}
diff --git a/include/linux/acpi.h b/include/linux/acpi.h
index 641dc4843987..d16739928888 100644
--- a/include/linux/acpi.h
+++ b/include/linux/acpi.h
@@ -1511,6 +1511,12 @@ void acpi_arm_init(void);
 static inline void acpi_arm_init(void) { }
 #endif
 
+#ifdef CONFIG_RISCV
+void acpi_riscv_init(void);
+#else
+static inline void acpi_riscv_init(void) { }
+#endif
+
 #ifdef CONFIG_ACPI_PCC
 void acpi_init_pcc(void);
 #else
-- 
2.39.2