linux-kernel - [PATCH] of/irq: Fix a missed udpate of out

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Message-Id: <20241108023440.29509-1-chanho.min@lge.com>
Date: Fri,  8 Nov 2024 11:34:40 +0900
From: Chanho Min <chanho.min@....com>
To: Rob Herring <robh@...nel.org>,
	Saravana Kannan <saravanak@...gle.com>,
	devicetree@...r.kernel.org,
	linux-kernel@...r.kernel.org
Cc: gunho.lee@....com,
	Chanho Min <chanho.min@....com>
Subject: [PATCH] of/irq: Fix a missed udpate of out_irq->np

Since commit 935df1bd40d4 ("of/irq: Factor out parsing of interrupt-map parent
phandle+args from of_irq_parse_raw()"), An interrupt tree without
an interrupt-map is not updated to the parent interrupt and it causes the irq
domain not to be found in some out-of-tree device-tree.

Fixes: 935df1bd40d4 ("of/irq: Factor out parsing of interrupt-map parent phandle+args from of_irq_parse_raw()")

Signed-off-by: Chanho Min <chanho.min@....com>
---
 drivers/of/irq.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/of/irq.c b/drivers/of/irq.c
index 8fd63100ba8f..3fa3c833e2dc 100644
--- a/drivers/of/irq.c
+++ b/drivers/of/irq.c
@@ -315,6 +315,7 @@ int of_irq_parse_raw(const __be32 *addr, struct of_phandle_args *out_irq)
 
 	skiplevel:
 		/* Iterate again with new parent */
+		out_irq->np = newpar;
 		pr_debug(" -> new parent: %pOF\n", newpar);
 		of_node_put(ipar);
 		ipar = newpar;
-- 
2.17.1