diff mbox series

[v3,18/19] irqchip/mvebu-odmi: Use irq_domain_create_hierarchy()

Message ID 20221209140150.1453-19-johan+linaro@kernel.org
State New
Headers
Series irqdomain: fix mapping race and clean up locking |

Commit Message

Johan Hovold Dec. 9, 2022, 2:01 p.m. UTC 
  Use the irq_domain_create_hierarchy() helper to create the hierarchical
domain, which both serves as documentation and avoids poking at
irqdomain internals.

Signed-off-by: Johan Hovold <johan+linaro@kernel.org>
---
 drivers/irqchip/irq-mvebu-odmi.c | 13 +++++++------
 1 file changed, 7 insertions(+), 6 deletions(-)

Comments

Philippe Mathieu-Daudé Dec. 12, 2022, 10:37 p.m. UTC | #1 
On 9/12/22 15:01, Johan Hovold wrote:
> Use the irq_domain_create_hierarchy() helper to create the hierarchical
> domain, which both serves as documentation and avoids poking at
> irqdomain internals.
> 
> Signed-off-by: Johan Hovold <johan+linaro@kernel.org>
> ---
>   drivers/irqchip/irq-mvebu-odmi.c | 13 +++++++------
>   1 file changed, 7 insertions(+), 6 deletions(-)

Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
diff mbox series

Patch

diff --git a/drivers/irqchip/irq-mvebu-odmi.c b/drivers/irqchip/irq-mvebu-odmi.c
index dc4145abdd6f..108091533e10 100644
--- a/drivers/irqchip/irq-mvebu-odmi.c
+++ b/drivers/irqchip/irq-mvebu-odmi.c
@@ -161,7 +161,7 @@  static struct msi_domain_info odmi_msi_domain_info = {
 static int __init mvebu_odmi_init(struct device_node *node,
 				  struct device_node *parent)
 {
-	struct irq_domain *inner_domain, *plat_domain;
+	struct irq_domain *parent_domain, *inner_domain, *plat_domain;
 	int ret, i;
 
 	if (of_property_read_u32(node, "marvell,odmi-frames", &odmis_count))
@@ -197,16 +197,17 @@  static int __init mvebu_odmi_init(struct device_node *node,
 		}
 	}
 
-	inner_domain = irq_domain_create_linear(of_node_to_fwnode(node),
-						odmis_count * NODMIS_PER_FRAME,
-						&odmi_domain_ops, NULL);
+	parent_domain = irq_find_host(parent);
+
+	inner_domain = irq_domain_create_hierarchy(parent_domain, 0,
+						   odmis_count * NODMIS_PER_FRAME,
+						   of_node_to_fwnode(node),
+						   &odmi_domain_ops, NULL);
 	if (!inner_domain) {
 		ret = -ENOMEM;
 		goto err_unmap;
 	}
 
-	inner_domain->parent = irq_find_host(parent);
-
 	plat_domain = platform_msi_create_irq_domain(of_node_to_fwnode(node),
 						     &odmi_msi_domain_info,
 						     inner_domain);