Commit fc67c913 authored by Lad Prabhakar's avatar Lad Prabhakar Committed by Greg Kroah-Hartman
Browse files

serial: bcm63xx: Use platform_get_irq() 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().

Acked-by: default avatarFlorian Fainelli <f.fainelli@gmail.com>
Signed-off-by: default avatarLad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
Link: https://lore.kernel.org/r/20211224142917.6966-10-prabhakar.mahadev-lad.rj@bp.renesas.com


Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent 1129a63e

drivers/tty/serial/bcm63xx_uart.c

+5 −5
Original line number Diff line number Diff line
@@ -804,7 +804,7 @@ static struct uart_driver bcm_uart_driver = { 
 */

static int bcm_uart_probe(struct platform_device *pdev)

{

	struct resource *res_mem, *res_irq;

	struct resource *res_mem;

	struct uart_port *port;

	struct clk *clk;

	int ret;
@@ -833,9 +833,10 @@ static int bcm_uart_probe(struct platform_device *pdev) 
	if (IS_ERR(port->membase))

		return PTR_ERR(port->membase);



	res_irq = platform_get_resource(pdev, IORESOURCE_IRQ, 0);

	if (!res_irq)

		return -ENODEV;

	ret = platform_get_irq(pdev, 0);

	if (ret < 0)

		return ret;

	port->irq = ret;



	clk = clk_get(&pdev->dev, "refclk");

	if (IS_ERR(clk) && pdev->dev.of_node)
@@ -845,7 +846,6 @@ static int bcm_uart_probe(struct platform_device *pdev) 
		return -ENODEV;



	port->iotype = UPIO_MEM;

	port->irq = res_irq->start;

	port->ops = &bcm_uart_ops;

	port->flags = UPF_BOOT_AUTOCONF;

	port->dev = &pdev->dev;