From: Frank Wunderlich <frank-w@xxxxxxxxxxxxxxx>
commit eb9c1a41ea1234907615fe47d6e47db8352d744b upstream.
As platform_get_irq() now prints an error when the interrupt does not
exist, this warnings are printed on bananapi-r2:
[ 4.935780] mt6577-uart 11004000.serial: IRQ index 1 not found
[ 4.962589] 11002000.serial: ttyS1 at MMIO 0x11002000 (irq = 202, base_baud = 1625000) is a ST16650V2
[ 4.972127] mt6577-uart 11002000.serial: IRQ index 1 not found
[ 4.998927] 11003000.serial: ttyS2 at MMIO 0x11003000 (irq = 203, base_baud = 1625000) is a ST16650V2
[ 5.008474] mt6577-uart 11003000.serial: IRQ index 1 not found
Fix this by calling platform_get_irq_optional() instead.
now it looks like this:
[ 4.872751] Serial: 8250/16550 driver, 4 ports, IRQ sharing disabled
Fixes: 7723f4c5ecdb8d83 ("driver core: platform: Add an error message to platform_get_irq*()")
Signed-off-by: Frank Wunderlich <frank-w@xxxxxxxxxxxxxxx>
Cc: stable <stable@xxxxxxxxxxxxxxx>
Link: https://lore.kernel.org/r/20191027062117.20389-1-frank-w@xxxxxxxxxxxxxxx
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/tty/serial/8250/8250_mtk.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/drivers/tty/serial/8250/8250_mtk.c
+++ b/drivers/tty/serial/8250/8250_mtk.c
@@ -544,7 +544,7 @@ static int mtk8250_probe(struct platform
pm_runtime_set_active(&pdev->dev);
pm_runtime_enable(&pdev->dev);
- data->rx_wakeup_irq = platform_get_irq(pdev, 1);
+ data->rx_wakeup_irq = platform_get_irq_optional(pdev, 1);
return 0;
}
