target/linux/generic/backport-5.4/751-v5.6-net-mvmdio-avoid-error-message-for-optional-IRQ.patch

   1 From fa2632f74e57bbc869c8ad37751a11b6147a3acc Mon Sep 17 00:00:00 2001
   2 From: Chris Packham <chris.packham@alliedtelesis.co.nz>
   3 Date: Mon, 16 Mar 2020 20:49:07 +1300
   4 Subject: [PATCH] net: mvmdio: avoid error message for optional IRQ
   5
   6 Per the dt-binding the interrupt is optional so use
   7 platform_get_irq_optional() instead of platform_get_irq(). Since
   8 commit 7723f4c5ecdb ("driver core: platform: Add an error message to
   9 platform_get_irq*()") platform_get_irq() produces an error message
  10
  11   orion-mdio f1072004.mdio: IRQ index 0 not found
  12
  13 which is perfectly normal if one hasn't specified the optional property
  14 in the device tree.
  15
  16 Signed-off-by: Chris Packham <chris.packham@alliedtelesis.co.nz>
  17 Reviewed-by: Andrew Lunn <andrew@lunn.ch>
  18 Signed-off-by: David S. Miller <davem@davemloft.net>
  19 ---
  20  drivers/net/ethernet/marvell/mvmdio.c | 2 +-
  21  1 file changed, 1 insertion(+), 1 deletion(-)
  22
  23 --- a/drivers/net/ethernet/marvell/mvmdio.c
  24 +++ b/drivers/net/ethernet/marvell/mvmdio.c
  25 @@ -347,7 +347,7 @@ static int orion_mdio_probe(struct platf
  26         }
  27
  28
  29 -       dev->err_interrupt = platform_get_irq(pdev, 0);
  30 +       dev->err_interrupt = platform_get_irq_optional(pdev, 0);
  31         if (dev->err_interrupt > 0 &&
  32             resource_size(r) < MVMDIO_ERR_INT_MASK + 4) {
  33                 dev_err(&pdev->dev,