Messages in this thread Patch in this message | | | From | Greg Kroah-Hartman <> | Subject | [PATCH 5.18 098/879] net: macb: In ZynqMP initialization make SGMII phy configuration optional | Date | Tue, 7 Jun 2022 18:53:36 +0200 |
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From: Radhey Shyam Pandey <radhey.shyam.pandey@xilinx.com>
[ Upstream commit 29e96fe9e0ec0f0fe1dd306a4ccb7b8983eae67a ]
In the macb binding documentation "phys" is an optional property. Make implementation in line with it. This change allows the traditional flow in which first stage bootloader does PS-GT configuration to work along with newer use cases in which PS-GT configuration is managed by the phy-zynqmp driver.
It fixes below macb probe failure when macb DT node doesn't have SGMII phys handle. "macb ff0b0000.ethernet: error -ENODEV: failed to get PS-GTR PHY"
Signed-off-by: Radhey Shyam Pandey <radhey.shyam.pandey@xilinx.com> Reviewed-by: Michal Simek <michal.simek@xilinx.com> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Sasha Levin <sashal@kernel.org> --- drivers/net/ethernet/cadence/macb_main.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/net/ethernet/cadence/macb_main.c b/drivers/net/ethernet/cadence/macb_main.c index 61284baa0496..ed7c2c2c4401 100644 --- a/drivers/net/ethernet/cadence/macb_main.c +++ b/drivers/net/ethernet/cadence/macb_main.c @@ -4594,7 +4594,7 @@ static int zynqmp_init(struct platform_device *pdev) if (bp->phy_interface == PHY_INTERFACE_MODE_SGMII) { /* Ensure PS-GTR PHY device used in SGMII mode is ready */ - bp->sgmii_phy = devm_phy_get(&pdev->dev, "sgmii-phy"); + bp->sgmii_phy = devm_phy_optional_get(&pdev->dev, NULL); if (IS_ERR(bp->sgmii_phy)) { ret = PTR_ERR(bp->sgmii_phy); -- 2.35.1
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