From be04024a24a93f761a7b2c5f2de46db0f3acdc74 Mon Sep 17 00:00:00 2001 From: Rosen Penev Date: Sat, 24 Aug 2024 13:02:37 -0700 Subject: [PATCH] net: ag71xx: support probe defferal for getting MAC address Currently, of_get_ethdev_address() return is checked for any return error code which means that trying to get the MAC from NVMEM cells that is backed by MTD will fail if it was not probed before ag71xx. So, lets check the return error code for EPROBE_DEFER and defer the ag71xx probe in that case until the underlying NVMEM device is live. Signed-off-by: Robert Marko Signed-off-by: Rosen Penev Reviewed-by: Oleksij Rempel Reviewed-by: Andrew Lunn Link: https://patch.msgid.link/20240824200249.137209-1-rosenp@gmail.com Signed-off-by: Jakub Kicinski --- drivers/net/ethernet/atheros/ag71xx.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/net/ethernet/atheros/ag71xx.c b/drivers/net/ethernet/atheros/ag71xx.c index bf02bea03a7b..543cbea47138 100644 --- a/drivers/net/ethernet/atheros/ag71xx.c +++ b/drivers/net/ethernet/atheros/ag71xx.c @@ -1895,6 +1895,8 @@ static int ag71xx_probe(struct platform_device *pdev) ag->stop_desc->next = (u32)ag->stop_desc_dma; err = of_get_ethdev_address(np, ndev); + if (err == -EPROBE_DEFER) + return err; if (err) { netif_err(ag, probe, ndev, "invalid MAC address, using random address\n"); eth_hw_addr_random(ndev); -- 2.50.1