From 228662b074149e16949ab73205ac93b5ca2c3552 Mon Sep 17 00:00:00 2001
From: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
Date: Fri, 29 Apr 2022 17:50:50 +0100
Subject: [PATCH] slimbus: qcom-ngd-ctrl: Use platform_get_irq() to get the
interrupt
platform_get_resource(pdev, IORESOURCE_IRQ, ..) relies on static
allocation of IRQ resources in DT core code, this causes an issue
when using hierarchical interrupt domains using "interrupts" property
in the node as this bypasses the hierarchical setup and messes up the
irq chaining.
In preparation for removal of static setup of IRQ resource from DT core
code use platform_get_irq().
Tested-By: Steev Klimaszewski <steev@kali.org>
Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Link: https://lore.kernel.org/r/20220429165051.6187-2-srinivas.kandagatla@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
drivers/slimbus/qcom-ngd-ctrl.c | 10 ++++------
1 file changed, 4 insertions(+), 6 deletions(-)
diff --git a/drivers/slimbus/qcom-ngd-ctrl.c b/drivers/slimbus/qcom-ngd-ctrl.c
index 7040293c2ee8f..0f29a08b4c099 100644
--- a/drivers/slimbus/qcom-ngd-ctrl.c
+++ b/drivers/slimbus/qcom-ngd-ctrl.c
@@ -1526,13 +1526,11 @@ static int qcom_slim_ngd_ctrl_probe(struct platform_device *pdev)
if (IS_ERR(ctrl->base))
return PTR_ERR(ctrl->base);
- res = platform_get_resource(pdev, IORESOURCE_IRQ, 0);
- if (!res) {
- dev_err(&pdev->dev, "no slimbus IRQ resource\n");
- return -ENODEV;
- }
+ ret = platform_get_irq(pdev, 0);
+ if (ret < 0)
+ return ret;
- ret = devm_request_irq(dev, res->start, qcom_slim_ngd_interrupt,
+ ret = devm_request_irq(dev, ret, qcom_slim_ngd_interrupt,
IRQF_TRIGGER_HIGH, "slim-ngd", ctrl);
if (ret) {
dev_err(&pdev->dev, "request IRQ failed\n");
--
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