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[PATCH v9 12/15] msi: platform: make platform_msi_create_device_domain() ACPI aware

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From: Hanjun Guo <hanjun.guo@linaro.org>

The irqdomain creation that is carried out in:

platform_msi_create_device_domain()

relies on the fwnode_handle interrupt controller token to associate the
interrupt controller with a specific irqdomain. Current code relies on
the OF layer to retrieve a fwnode_handle for the device representing the
interrupt controller from its device->of_node pointer.  This makes
platform_msi_create_device_domain() DT specific whilst it really is not
because after the merge of commit f94277af03ea ("of/platform: Initialise
dev->fwnode appropriately") the fwnode_handle can easily be retrieved
from the dev->fwnode pointer in a firmware agnostic way.

Update platform_msi_create_device_domain() to retrieve the interrupt
controller fwnode_handle from the dev->fwnode pointer so that it can
be used seamlessly in ACPI and DT systems.

Signed-off-by: Hanjun Guo <hanjun.guo@linaro.org>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Tested-by: Ming Lei <ming.lei@canonical.com>
Tested-by: Wei Xu <xuwei5@hisilicon.com>
Cc: Marc Zyngier <marc.zyngier@arm.com>
Cc: Greg KH <gregkh@linuxfoundation.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
---
 drivers/base/platform-msi.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/base/platform-msi.c b/drivers/base/platform-msi.c
index 0fc7c4d..d35e9a2 100644
--- a/drivers/base/platform-msi.c
+++ b/drivers/base/platform-msi.c
@@ -345,8 +345,7 @@ struct irq_domain *
 
 	data->host_data = host_data;
 	domain = irq_domain_create_hierarchy(dev->msi_domain, 0, nvec,
-					     of_node_to_fwnode(dev->of_node),
-					     ops, data);
+					     dev->fwnode, ops, data);
 	if (!domain)
 		goto free_priv;
 
-- 
1.7.12.4

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[PATCH v9 00/15] ACPI platform MSI support and its example mbigen Hanjun Guo <guohanjun@huawei.com> - 2017-03-07 14:00 +0100
  [PATCH v9 12/15] msi: platform: make platform_msi_create_device_domain() ACPI aware Hanjun Guo <guohanjun@huawei.com> - 2017-03-07 14:00 +0100
  [PATCH v9 15/15] irqchip: mbigen: Add ACPI support Hanjun Guo <guohanjun@huawei.com> - 2017-03-07 14:00 +0100
  [PATCH v9 08/15] ACPI/IORT: Rename iort_node_map_rid() to make it generic Hanjun Guo <guohanjun@huawei.com> - 2017-03-07 14:00 +0100
  [PATCH v9 11/15] ACPI: platform: setup MSI domain for ACPI based platform device Hanjun Guo <guohanjun@huawei.com> - 2017-03-07 14:00 +0100
  [PATCH v9 14/15] irqchip: mbigen: introduce mbigen_of_create_domain() Hanjun Guo <guohanjun@huawei.com> - 2017-03-07 14:00 +0100
  [PATCH v9 09/15] ACPI/IORT: Introduce iort_node_map_platform_id() to retrieve dev id Hanjun Guo <guohanjun@huawei.com> - 2017-03-07 14:10 +0100
  Re: [PATCH v9 00/15] ACPI platform MSI support and its example mbigen Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> - 2017-03-07 15:50 +0100
    Re: [PATCH v9 00/15] ACPI platform MSI support and its example mbigen Hanjun Guo <hanjun.guo@linaro.org> - 2017-03-09 14:30 +0100

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