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/20211224142917.6966-11-prabhakar.mahadev-lad.rj@bp.renesas.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
static int __init pmz_init_port(struct uart_pmac_port *uap)
{
static int __init pmz_init_port(struct uart_pmac_port *uap)
{
- struct resource *r_ports, *r_irq;
+ struct resource *r_ports;
+ int irq;
r_ports = platform_get_resource(uap->pdev, IORESOURCE_MEM, 0);
r_ports = platform_get_resource(uap->pdev, IORESOURCE_MEM, 0);
- r_irq = platform_get_resource(uap->pdev, IORESOURCE_IRQ, 0);
- if (!r_ports || !r_irq)
+ irq = platform_get_irq(uap->pdev, 0);
+ if (irq < 0)
+ return irq;
+
uap->port.mapbase = r_ports->start;
uap->port.membase = (unsigned char __iomem *) r_ports->start;
uap->port.iotype = UPIO_MEM;
uap->port.mapbase = r_ports->start;
uap->port.membase = (unsigned char __iomem *) r_ports->start;
uap->port.iotype = UPIO_MEM;
- uap->port.irq = r_irq->start;
uap->port.uartclk = ZS_CLOCK;
uap->port.fifosize = 1;
uap->port.ops = &pmz_pops;
uap->port.uartclk = ZS_CLOCK;
uap->port.fifosize = 1;
uap->port.ops = &pmz_pops;