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X-OriginatorOrg: Nvidia.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 11 Aug 2025 17:51:05.8973 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 8a6a0c6c-90f8-4996-cdcf-08ddd8ffa576 X-MS-Exchange-CrossTenant-Id: 43083d15-7273-40c1-b7db-39efd9ccc17a X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=43083d15-7273-40c1-b7db-39efd9ccc17a;Ip=[216.228.118.233];Helo=[mail.nvidia.com] X-MS-Exchange-CrossTenant-AuthSource: BN2PEPF00004FBE.namprd04.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: BN3PR12MB9569 Content-Type: text/plain; charset="utf-8" This reverts commit 10af0273a35ab4513ca1546644b8c853044da134. While this change was merged, it is not the preferred solution. During review of a similar change to the gpio-mlxbf2 driver, the use of "platform_get_irq_optional" was identified as the preferred solution, so let's use it for gpio-mlxbf3 driver as well. Cc: stable@vger.kernel.org Fixes: 10af0273a35a ("gpio: mlxbf3: only get IRQ for device instance 0") Signed-off-by: David Thompson Reviewed-by: Andy Shevchenko --- drivers/gpio/gpio-mlxbf3.c | 54 ++++++++++++++------------------------ 1 file changed, 19 insertions(+), 35 deletions(-) diff --git a/drivers/gpio/gpio-mlxbf3.c b/drivers/gpio/gpio-mlxbf3.c index 9875e34bde72..10ea71273c89 100644 --- a/drivers/gpio/gpio-mlxbf3.c +++ b/drivers/gpio/gpio-mlxbf3.c @@ -190,9 +190,7 @@ static int mlxbf3_gpio_probe(struct platform_device *pd= ev) struct mlxbf3_gpio_context *gs; struct gpio_irq_chip *girq; struct gpio_chip *gc; - char *colon_ptr; int ret, irq; - long num; =20 gs =3D devm_kzalloc(dev, sizeof(*gs), GFP_KERNEL); if (!gs) @@ -229,39 +227,25 @@ static int mlxbf3_gpio_probe(struct platform_device *= pdev) gc->owner =3D THIS_MODULE; gc->add_pin_ranges =3D mlxbf3_gpio_add_pin_ranges; =20 - colon_ptr =3D strchr(dev_name(dev), ':'); - if (!colon_ptr) { - dev_err(dev, "invalid device name format\n"); - return -EINVAL; - } - - ret =3D kstrtol(++colon_ptr, 16, &num); - if (ret) { - dev_err(dev, "invalid device instance\n"); - return ret; - } - - if (!num) { - irq =3D platform_get_irq(pdev, 0); - if (irq >=3D 0) { - girq =3D &gs->gc.irq; - gpio_irq_chip_set_chip(girq, &gpio_mlxbf3_irqchip); - girq->default_type =3D IRQ_TYPE_NONE; - /* This will let us handle the parent IRQ in the driver */ - girq->num_parents =3D 0; - girq->parents =3D NULL; - girq->parent_handler =3D NULL; - girq->handler =3D handle_bad_irq; - - /* - * Directly request the irq here instead of passing - * a flow-handler because the irq is shared. - */ - ret =3D devm_request_irq(dev, irq, mlxbf3_gpio_irq_handler, - IRQF_SHARED, dev_name(dev), gs); - if (ret) - return dev_err_probe(dev, ret, "failed to request IRQ"); - } + irq =3D platform_get_irq(pdev, 0); + if (irq >=3D 0) { + girq =3D &gs->gc.irq; + gpio_irq_chip_set_chip(girq, &gpio_mlxbf3_irqchip); + girq->default_type =3D IRQ_TYPE_NONE; + /* This will let us handle the parent IRQ in the driver */ + girq->num_parents =3D 0; 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X-OriginatorOrg: Nvidia.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 11 Aug 2025 17:50:57.8724 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: b58083fe-a017-423b-a35b-08ddd8ffa0ae X-MS-Exchange-CrossTenant-Id: 43083d15-7273-40c1-b7db-39efd9ccc17a X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=43083d15-7273-40c1-b7db-39efd9ccc17a;Ip=[216.228.118.232];Helo=[mail.nvidia.com] X-MS-Exchange-CrossTenant-AuthSource: BN1PEPF00005FFC.namprd05.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: MN0PR12MB6293 Content-Type: text/plain; charset="utf-8" The gpio-mlxbf3 driver interfaces with two GPIO controllers, device instance 0 and 1. There is a single IRQ resource shared between the two controllers, and it is found in the ACPI table for device instance 0. The driver should not use platform_get_irq(), otherwise this error is logged when probing instance 1: mlxbf3_gpio MLNXBF33:01: error -ENXIO: IRQ index 0 not found Fixes: cd33f216d241 ("gpio: mlxbf3: Add gpio driver support") Signed-off-by: David Thompson Reviewed-by: Andy Shevchenko --- drivers/gpio/gpio-mlxbf3.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/gpio/gpio-mlxbf3.c b/drivers/gpio/gpio-mlxbf3.c index 10ea71273c89..ed29b07d16c1 100644 --- a/drivers/gpio/gpio-mlxbf3.c +++ b/drivers/gpio/gpio-mlxbf3.c @@ -227,7 +227,7 @@ static int mlxbf3_gpio_probe(struct platform_device *pd= ev) gc->owner =3D THIS_MODULE; gc->add_pin_ranges =3D mlxbf3_gpio_add_pin_ranges; =20 - irq =3D platform_get_irq(pdev, 0); + irq =3D platform_get_irq_optional(pdev, 0); if (irq >=3D 0) { girq =3D &gs->gc.irq; gpio_irq_chip_set_chip(girq, &gpio_mlxbf3_irqchip); --=20 2.43.2