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From: Sunil V L <sunilvl@ventanamicro.com>
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	Sunil V L <sunilvl@ventanamicro.com>
Subject: [RFC PATCH v4 03/20] PCI: Make pci_create_root_bus() declare its reliance on MSI domains
Date: Mon, 15 Apr 2024 22:30:56 +0530
Message-Id: <20240415170113.662318-4-sunilvl@ventanamicro.com>
In-Reply-To: <20240415170113.662318-1-sunilvl@ventanamicro.com>
References: <20240415170113.662318-1-sunilvl@ventanamicro.com>
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Similar to commit 9ec37efb8783 ("PCI/MSI: Make
pci_host_common_probe() declare its reliance on MSI domains"), declare
this dependency for PCI probe in ACPI based flow.

This is required especially for RISC-V platforms where MSI controller
can be absent. However, setting this for all architectures seem to cause
issues on non RISC-V architectures [1]. Hence, enabled this only for
RISC-V.

[1] - https://lore.kernel.org/oe-lkp/202403041047.791cb18e-oliver.sang@intel.com

Signed-off-by: Sunil V L <sunilvl@ventanamicro.com>
---
 drivers/pci/probe.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/pci/probe.c b/drivers/pci/probe.c
index 1325fbae2f28..e09915bee2ee 100644
--- a/drivers/pci/probe.c
+++ b/drivers/pci/probe.c
@@ -3048,6 +3048,9 @@ struct pci_bus *pci_create_root_bus(struct device *parent, int bus,
 	bridge->sysdata = sysdata;
 	bridge->busnr = bus;
 	bridge->ops = ops;
+#ifdef CONFIG_RISCV
+	bridge->msi_domain = true;
+#endif
 
 	error = pci_register_host_bridge(bridge);
 	if (error < 0)
-- 
2.40.1