From 3277e022a1c31f5041753942b3d9006174ca7aa2 Mon Sep 17 00:00:00 2001 From: Lad Prabhakar Date: Mon, 10 Jan 2022 14:40:39 +0000 Subject: [PATCH] thermal/drivers/rcar_thermal: Use platform_get_irq_optional() 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_optional(). Signed-off-by: Lad Prabhakar Reviewed-by: Geert Uytterhoeven Link: https://lore.kernel.org/r/20220110144039.5810-1-prabhakar.mahadev-lad.rj@bp.renesas.com Signed-off-by: Daniel Lezcano --- drivers/thermal/rcar_thermal.c | 17 ++++++++++++----- 1 file changed, 12 insertions(+), 5 deletions(-) diff --git a/drivers/thermal/rcar_thermal.c b/drivers/thermal/rcar_thermal.c index b49f04daaf477..1d729ed4d6856 100644 --- a/drivers/thermal/rcar_thermal.c +++ b/drivers/thermal/rcar_thermal.c @@ -445,7 +445,7 @@ static int rcar_thermal_probe(struct platform_device *pdev) struct rcar_thermal_common *common; struct rcar_thermal_priv *priv; struct device *dev = &pdev->dev; - struct resource *res, *irq; + struct resource *res; const struct rcar_thermal_chip *chip = of_device_get_match_data(dev); int mres = 0; int i; @@ -467,9 +467,16 @@ static int rcar_thermal_probe(struct platform_device *pdev) pm_runtime_get_sync(dev); for (i = 0; i < chip->nirqs; i++) { - irq = platform_get_resource(pdev, IORESOURCE_IRQ, i); - if (!irq) - continue; + int irq; + + ret = platform_get_irq_optional(pdev, i); + if (ret < 0 && ret != -ENXIO) + goto error_unregister; + if (ret > 0) + irq = ret; + else + break; + if (!common->base) { /* * platform has IRQ support. @@ -487,7 +494,7 @@ static int rcar_thermal_probe(struct platform_device *pdev) idle = 0; /* polling delay is not needed */ } - ret = devm_request_irq(dev, irq->start, rcar_thermal_irq, + ret = devm_request_irq(dev, irq, rcar_thermal_irq, IRQF_SHARED, dev_name(dev), common); if (ret) { dev_err(dev, "irq request failed\n "); -- 2.30.2