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0b46274d42
nvethernet comes up before gpio and hence reset gpio error below seen in galen boot log: ### [ 2.252546] nvethernet 2490000.ethernet: Adding to iommu group 0 [ 2.257577] nvethernet 2490000.ethernet: failed to get phy reset gpio [ 2.265533] nvethernet 2490000.ethernet: Ethernet MAC address: 00:04:4b:af:62:37 [ 2.271764] libphy: nvethernet_mdio_bus: probed [ 2.275940] mdio_bus 2490000.ethernet: MDIO device at address 0 is missing. [ 2.284469] nvethernet 2490000.ethernet: eth0 (HW ver: 50) created with 1 DMA channels [ 2.548104] GPIO line 510 (gpio_default) hogged as output/high [ 2.553598] GPIO line 511 (gpio_default) hogged as output/high [ 2.558156] gpiochip_setup_dev: registered GPIOs 504 to 511 on device: gpiochip0 (max77620-gpio) ## Returning -EPROBE_DEFER allows the driver initialization once gpio is initialized. Ethernet works fine in probe retry call once gpio is up. Hence, the defer probe is needed. bug 200617764 Change-Id: Icdcf0d7f0b69c564ecb0b142634b504287db3ea1 Signed-off-by: Bitan Biswas <bbiswas@nvidia.com> Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvidia/+/2348758 Tested-by: mobile promotions <svcmobile_promotions@nvidia.com> Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>