diff options
| author | Frank Wunderlich <frank-w@public-files.de> | 2025-06-19 15:21:24 +0200 |
|---|---|---|
| committer | Jakub Kicinski <kuba@kernel.org> | 2025-06-23 18:14:01 -0700 |
| commit | 070e98dd4e26279280e15db8f37077a001ca1b4c (patch) | |
| tree | 8d5822acc0a98174c3d837a2a27a0cc95528706f | |
| parent | 9c0feca0a68b33cf012dd835edc6067407597a59 (diff) | |
net: ethernet: mtk_eth_soc: only use legacy mode on missing IRQ name
If platform_get_irq_byname returns -ENXIO fall back to legacy (index
based) mode, but on other errors function should return this error.
Suggested-by: Daniel Golle <daniel@makrotopia.org>
Signed-off-by: Frank Wunderlich <frank-w@public-files.de>
Reviewed-by: Simon Horman <horms@kernel.org>
Link: https://patch.msgid.link/20250619132125.78368-5-linux@fw-web.de
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
| -rw-r--r-- | drivers/net/ethernet/mediatek/mtk_eth_soc.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/drivers/net/ethernet/mediatek/mtk_eth_soc.c b/drivers/net/ethernet/mediatek/mtk_eth_soc.c index 67ba8927be46..f8a907747db4 100644 --- a/drivers/net/ethernet/mediatek/mtk_eth_soc.c +++ b/drivers/net/ethernet/mediatek/mtk_eth_soc.c @@ -3346,6 +3346,13 @@ static int mtk_get_irqs(struct platform_device *pdev, struct mtk_eth *eth) if (eth->irq[MTK_FE_IRQ_TX] >= 0 && eth->irq[MTK_FE_IRQ_RX] >= 0) return 0; + /* only use legacy mode if platform_get_irq_byname returned -ENXIO */ + if (eth->irq[MTK_FE_IRQ_TX] != -ENXIO) + return eth->irq[MTK_FE_IRQ_TX]; + + if (eth->irq[MTK_FE_IRQ_RX] != -ENXIO) + return eth->irq[MTK_FE_IRQ_RX]; + /* legacy way: * On MTK_SHARED_INT SoCs (MT7621 + MT7628) the first IRQ is taken * from devicetree and used for both RX and TX - it is shared. |