platform_get_resource_byname(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_byname().
Unified · Split
| @@ -991,16 +991,13 @@ static int acquire_bch_irq(struct gpmi_nand_data *this, irq_handler_t irq_h) · 990 unmodified lines | ||
| 991 | 991 | { |
| 992 | 992 | struct platform_device *pdev = this->pdev; |
| 993 | 993 | const char *res_name = GPMI_NAND_BCH_INTERRUPT_RES_NAME; |
| 994 | − struct resource *r; | |
| 995 | 994 | int err; |
| 996 | 995 | |
| 997 | − r = platform_get_resource_byname(pdev, IORESOURCE_IRQ, res_name); | |
| 998 | − if (!r) { | |
| 999 | − dev_err(this->dev, "Can't get resource for %s\n", res_name); | |
| 1000 | − return -ENODEV; | |
| 1001 | − } | |
| 996 | + err = platform_get_irq_byname(pdev, res_name); | |
| 997 | + if (err < 0) | |
| 998 | + return err; | |
| 1002 | 999 | |
| 1003 | − err = devm_request_irq(this->dev, r->start, irq_h, 0, res_name, this); | |
| 1000 | + err = devm_request_irq(this->dev, err, irq_h, 0, res_name, this); | |
| 1004 | 1001 | if (err) |
| 1005 | 1002 | dev_err(this->dev, "error requesting BCH IRQ\n"); |
| 1006 | 1003 | |