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kernel: backport "mvmdio avoid error message for optional IRQ"

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Rid of kernel error message:
  [    0.780828] orion-mdio d0072004.mdio: IRQ index 0 not found

on Marvell targets backporting the kernel commit fa2632f74e57

Signed-off-by: Daniel González Cabanelas <dgcbueu@gmail.com>
This commit is contained in:
Daniel González Cabanelas 2021-04-23 17:33:32 +02:00 committed by Hauke Mehrtens
parent 8d1567ba61
commit d683175236
1 changed files with 33 additions and 0 deletions
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33
target/linux/generic/backport-5.4/751-v5.6-net-mvmdio-avoid-error-message-for-optional-IRQ.patch Normal file
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@ -0,0 +1,33 @@
From fa2632f74e57bbc869c8ad37751a11b6147a3acc Mon Sep 17 00:00:00 2001
From: Chris Packham <chris.packham@alliedtelesis.co.nz>
Date: Mon, 16 Mar 2020 20:49:07 +1300
Subject: [PATCH] net: mvmdio: avoid error message for optional IRQ
Per the dt-binding the interrupt is optional so use
platform_get_irq_optional() instead of platform_get_irq(). Since
commit 7723f4c5ecdb ("driver core: platform: Add an error message to
platform_get_irq*()") platform_get_irq() produces an error message
orion-mdio f1072004.mdio: IRQ index 0 not found
which is perfectly normal if one hasn't specified the optional property
in the device tree.
Signed-off-by: Chris Packham <chris.packham@alliedtelesis.co.nz>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
drivers/net/ethernet/marvell/mvmdio.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/drivers/net/ethernet/marvell/mvmdio.c
+++ b/drivers/net/ethernet/marvell/mvmdio.c
@@ -347,7 +347,7 @@ static int orion_mdio_probe(struct platf
}
- dev->err_interrupt = platform_get_irq(pdev, 0);
+ dev->err_interrupt = platform_get_irq_optional(pdev, 0);
if (dev->err_interrupt > 0 &&
resource_size(r) < MVMDIO_ERR_INT_MASK + 4) {
dev_err(&pdev->dev,