linux-kernel - [PATCH 2/3] spmi: pmic-arb: Pass the correct of_node to irq_domain_add

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Message-ID: <20240725164636.3362690-3-sboyd@kernel.org>
Date: Thu, 25 Jul 2024 09:46:32 -0700
From: Stephen Boyd <sboyd@...nel.org>
To: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Cc: Konrad Dybcio <konrad.dybcio@...aro.org>,
	linux-kernel@...r.kernel.org,
	patches@...ts.linux.dev,
	Abel Vesa <abel.vesa@...aro.org>,
	Dmitry Baryshkov <dmitry.baryshkov@...aro.org>,
	stable@...r.kernel.org
Subject: [PATCH 2/3] spmi: pmic-arb: Pass the correct of_node to irq_domain_add_tree

From: Konrad Dybcio <konrad.dybcio@...aro.org>

Currently, irqchips for all of the subnodes (which represent a given
bus master) point to the parent wrapper node. This is no bueno, as
no interrupts arrive, ever (because nothing references that node).

Fix that by passing a reference to the respective master's of_node.

Worth noting, this is a NOP for devices with only a single master
described.

Signed-off-by: Konrad Dybcio <konrad.dybcio@...aro.org>
Link: https://lore.kernel.org/r/20240522-topic-spmi_multi_master_irqfix-v2-1-7ec92a862b9f@linaro.org
Reviewed-by: Abel Vesa <abel.vesa@...aro.org>
Tested-by: Dmitry Baryshkov <dmitry.baryshkov@...aro.org>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@...aro.org>
Fixes: 02922ccbb330 ("spmi: pmic-arb: Register controller for bus instead of arbiter")
Cc: stable@...r.kernel.org
Signed-off-by: Stephen Boyd <sboyd@...nel.org>
---
 drivers/spmi/spmi-pmic-arb.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/spmi/spmi-pmic-arb.c b/drivers/spmi/spmi-pmic-arb.c
index f240fcc5a4e1..b6880c13163c 100644
--- a/drivers/spmi/spmi-pmic-arb.c
+++ b/drivers/spmi/spmi-pmic-arb.c
@@ -1737,8 +1737,7 @@ static int spmi_pmic_arb_bus_init(struct platform_device *pdev,
 
 	dev_dbg(&pdev->dev, "adding irq domain for bus %d\n", bus_index);
 
-	bus->domain = irq_domain_add_tree(dev->of_node,
-					  &pmic_arb_irq_domain_ops, bus);
+	bus->domain = irq_domain_add_tree(node, &pmic_arb_irq_domain_ops, bus);
 	if (!bus->domain) {
 		dev_err(&pdev->dev, "unable to create irq_domain\n");
 		return -ENOMEM;
-- 
https://git.kernel.org/pub/scm/linux/kernel/git/clk/linux.git/
https://git.kernel.org/pub/scm/linux/kernel/git/sboyd/spmi.git