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Wysocki" , Mika Westerberg , Andy Shevchenko , Linus Walleij , Bartosz Golaszewski , =?UTF-8?q?Uwe=20Kleine-K=C3=B6nig?= Subject: [PATCH v9 21/24] mailbox/riscv-sbi-mpxy: Add ACPI support Date: Mon, 28 Jul 2025 15:10:29 +0530 Message-ID: <20250728094032.63545-22-apatel@ventanamicro.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20250728094032.63545-1-apatel@ventanamicro.com> References: <20250728094032.63545-1-apatel@ventanamicro.com> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20250728_024424_917012_D5C0BFC1 X-CRM114-Status: GOOD ( 18.93 ) X-BeenThere: linux-riscv@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Anup Patel , devicetree@vger.kernel.org, Andrew Jones , Alexandre Ghiti , Atish Patra , Leyfoon Tan , Anup Patel , linux-kernel@vger.kernel.org, Samuel Holland , linux-acpi@vger.kernel.org, Palmer Dabbelt , Paul Walmsley , linux-riscv@lists.infradead.org, Len Brown , linux-clk@vger.kernel.org, Rahul Pathak Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-riscv" Errors-To: linux-riscv-bounces+linux-riscv=archiver.kernel.org@lists.infradead.org From: Sunil V L Add ACPI support for the RISC-V SBI message proxy (MPXY) based mailbox driver. Acked-by: Jassi Brar Signed-off-by: Sunil V L Signed-off-by: Anup Patel --- drivers/mailbox/riscv-sbi-mpxy-mbox.c | 27 ++++++++++++++++++++++++++- 1 file changed, 26 insertions(+), 1 deletion(-) diff --git a/drivers/mailbox/riscv-sbi-mpxy-mbox.c b/drivers/mailbox/riscv-sbi-mpxy-mbox.c index 1a8a74d3ad4b..a739088c3d4c 100644 --- a/drivers/mailbox/riscv-sbi-mpxy-mbox.c +++ b/drivers/mailbox/riscv-sbi-mpxy-mbox.c @@ -5,9 +5,11 @@ * Copyright (C) 2025 Ventana Micro Systems Inc. */ +#include #include #include #include +#include #include #include #include @@ -902,6 +904,8 @@ static int mpxy_mbox_probe(struct platform_device *pdev) * explicitly configure here. */ if (!dev_get_msi_domain(dev)) { + struct fwnode_handle *fwnode = dev_fwnode(dev); + /* * The device MSI domain for OF devices is only set at the * time of populating/creating OF device. If the device MSI @@ -909,8 +913,15 @@ static int mpxy_mbox_probe(struct platform_device *pdev) * then we need to set it explicitly before using any platform * MSI functions. */ - if (dev_of_node(dev)) + if (is_of_node(fwnode)) { of_msi_configure(dev, dev_of_node(dev)); + } else if (is_acpi_device_node(fwnode)) { + struct irq_domain *msi_domain; + + msi_domain = irq_find_matching_fwnode(imsic_acpi_get_fwnode(dev), + DOMAIN_BUS_PLATFORM_MSI); + dev_set_msi_domain(dev, msi_domain); + } if (!dev_get_msi_domain(dev)) return -EPROBE_DEFER; @@ -958,6 +969,13 @@ static int mpxy_mbox_probe(struct platform_device *pdev) return rc; } +#ifdef CONFIG_ACPI + struct acpi_device *adev = ACPI_COMPANION(dev); + + if (adev) + acpi_dev_clear_dependencies(adev); +#endif + dev_info(dev, "mailbox registered with %d channels\n", mbox->channel_count); return 0; @@ -977,10 +995,17 @@ static const struct of_device_id mpxy_mbox_of_match[] = { }; MODULE_DEVICE_TABLE(of, mpxy_mbox_of_match); +static const struct acpi_device_id mpxy_mbox_acpi_match[] = { + { "RSCV0005" }, + {} +}; +MODULE_DEVICE_TABLE(acpi, mpxy_mbox_acpi_match); + static struct platform_driver mpxy_mbox_driver = { .driver = { .name = "riscv-sbi-mpxy-mbox", .of_match_table = mpxy_mbox_of_match, + .acpi_match_table = mpxy_mbox_acpi_match, }, .probe = mpxy_mbox_probe, .remove = mpxy_mbox_remove, -- 2.43.0 _______________________________________________ linux-riscv mailing list linux-riscv@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-riscv