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authorLad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>2021-12-24 14:29:15 +0000
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2021-12-30 13:26:49 +0100
commitfc67c913298c97bf5c1aac419ff260b7845613f5 (patch)
tree5932d75b61dd8c478f52a3a7e652ac25b250f42d /drivers/tty
parent1129a63e3a4c636f71c8d399313046f7b55f3009 (diff)
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: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: Lad 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: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/tty')
-rw-r--r--drivers/tty/serial/bcm63xx_uart.c10
1 files changed, 5 insertions, 5 deletions
diff --git a/drivers/tty/serial/bcm63xx_uart.c b/drivers/tty/serial/bcm63xx_uart.c
index 5fb0e84f7fd1..6471a54b616b 100644
--- a/drivers/tty/serial/bcm63xx_uart.c
+++ b/drivers/tty/serial/bcm63xx_uart.c
@@ -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;