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().
Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
Link: https://lore.kernel.org/r/20211224142917.6966-9-prabhakar.mahadev-lad.rj@bp.renesas.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
struct ar933x_uart_port *up;
struct uart_port *port;
struct resource *mem_res;
struct ar933x_uart_port *up;
struct uart_port *port;
struct resource *mem_res;
- struct resource *irq_res;
struct device_node *np;
unsigned int baud;
int id;
int ret;
struct device_node *np;
unsigned int baud;
int id;
int ret;
np = pdev->dev.of_node;
if (IS_ENABLED(CONFIG_OF) && np) {
np = pdev->dev.of_node;
if (IS_ENABLED(CONFIG_OF) && np) {
if (id >= CONFIG_SERIAL_AR933X_NR_UARTS)
return -EINVAL;
if (id >= CONFIG_SERIAL_AR933X_NR_UARTS)
return -EINVAL;
- irq_res = platform_get_resource(pdev, IORESOURCE_IRQ, 0);
- if (!irq_res) {
- dev_err(&pdev->dev, "no IRQ resource\n");
- return -EINVAL;
- }
+ irq = platform_get_irq(pdev, 0);
+ if (irq < 0)
+ return irq;
up = devm_kzalloc(&pdev->dev, sizeof(struct ar933x_uart_port),
GFP_KERNEL);
up = devm_kzalloc(&pdev->dev, sizeof(struct ar933x_uart_port),
GFP_KERNEL);
port->mapbase = mem_res->start;
port->line = id;
port->mapbase = mem_res->start;
port->line = id;
- port->irq = irq_res->start;
port->dev = &pdev->dev;
port->type = PORT_AR933X;
port->iotype = UPIO_MEM32;
port->dev = &pdev->dev;
port->type = PORT_AR933X;
port->iotype = UPIO_MEM32;