[PATCH 1/2] genirq: Get the fwnode back for irqchips being probed via ACPI namespace

[Hanjun Guo]

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

commit d59f6617eef0 (genirq: Allow fwnode to carry name information only)
forgot to do "domain->fwnode = fwnode;" for irqchips being probed via
ACPI namesapce (DSDT/SSDT), that will break platforms with irqchip such
as mbigen or qcom irq combiner, set the fwnode back to fix the issue.

Reported-by: John Garry <john.ga...@huawei.com>
Signed-off-by: Hanjun Guo <hanjun....@linaro.org>
---
 kernel/irq/irqdomain.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/kernel/irq/irqdomain.c b/kernel/irq/irqdomain.c
index 14fe862..1bc38fa 100644
--- a/kernel/irq/irqdomain.c
+++ b/kernel/irq/irqdomain.c
@@ -151,7 +151,6 @@ struct irq_domain *__irq_domain_add(struct fwnode_handle 
*fwnode, int size,
                        domain->flags |= IRQ_DOMAIN_NAME_ALLOCATED;
                        break;
                default:
-                       domain->fwnode = fwnode;
                        domain->name = fwid->name;
                        break;
                }
@@ -172,7 +171,6 @@ struct irq_domain *__irq_domain_add(struct fwnode_handle 
*fwnode, int size,
                strreplace(name, '/', ':');
 
                domain->name = name;
-               domain->fwnode = fwnode;
                domain->flags |= IRQ_DOMAIN_NAME_ALLOCATED;
        }
 
@@ -196,6 +194,7 @@ struct irq_domain *__irq_domain_add(struct fwnode_handle 
*fwnode, int size,
        INIT_RADIX_TREE(&domain->revmap_tree, GFP_KERNEL);
        domain->ops = ops;
        domain->host_data = host_data;
+       domain->fwnode = fwnode;
        domain->hwirq_max = hwirq_max;
        domain->revmap_size = size;
        domain->revmap_direct_max_irq = direct_max;
-- 
1.7.12.4