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Date: Wed, 26 Jan 2022 11:14:29 +0100 From: Tobias Waldekranz <tobias@...dekranz.com> To: davem@...emloft.net, kuba@...nel.org Cc: netdev@...r.kernel.org, Andrew Lunn <andrew@...n.ch>, Marcin Wojtas <mw@...ihalf.com>, Calvin Johnson <calvin.johnson@....nxp.com>, Markus Koch <markus@...syncing.net>, linux-kernel@...r.kernel.org Subject: [PATCH net-next 2/5] net/fsl: xgmac_mdio: Use managed device resources All of the resources used by this driver has managed interfaces, so use them. Heed the warning in the comment before platform_get_resource and use a bare devm_ioremap to allow for non-exclusive access to the IO memory. Signed-off-by: Tobias Waldekranz <tobias@...dekranz.com> --- drivers/net/ethernet/freescale/xgmac_mdio.c | 35 ++++----------------- 1 file changed, 6 insertions(+), 29 deletions(-) diff --git a/drivers/net/ethernet/freescale/xgmac_mdio.c b/drivers/net/ethernet/freescale/xgmac_mdio.c index 266e562bd67a..40442d64a247 100644 --- a/drivers/net/ethernet/freescale/xgmac_mdio.c +++ b/drivers/net/ethernet/freescale/xgmac_mdio.c @@ -273,7 +273,7 @@ static int xgmac_mdio_probe(struct platform_device *pdev) return -EINVAL; } - bus = mdiobus_alloc_size(sizeof(struct mdio_fsl_priv)); + bus = devm_mdiobus_alloc_size(&pdev->dev, sizeof(struct mdio_fsl_priv)); if (!bus) return -ENOMEM; @@ -284,13 +284,11 @@ static int xgmac_mdio_probe(struct platform_device *pdev) bus->probe_capabilities = MDIOBUS_C22_C45; snprintf(bus->id, MII_BUS_ID_SIZE, "%pa", &res->start); - /* Set the PHY base address */ priv = bus->priv; - priv->mdio_base = ioremap(res->start, resource_size(res)); - if (!priv->mdio_base) { - ret = -ENOMEM; - goto err_ioremap; - } + priv->mdio_base = devm_ioremap(&pdev->dev, res->start, + resource_size(res)); + if (IS_ERR(priv->mdio_base)) + return PTR_ERR(priv->mdio_base); /* For both ACPI and DT cases, endianness of MDIO controller * needs to be specified using "little-endian" property. @@ -312,31 +310,11 @@ static int xgmac_mdio_probe(struct platform_device *pdev) ret = -EINVAL; if (ret) { dev_err(&pdev->dev, "cannot register MDIO bus\n"); - goto err_registration; + return ret; } platform_set_drvdata(pdev, bus); - return 0; - -err_registration: - iounmap(priv->mdio_base); - -err_ioremap: - mdiobus_free(bus); - - return ret; -} - -static int xgmac_mdio_remove(struct platform_device *pdev) -{ - struct mii_bus *bus = platform_get_drvdata(pdev); - struct mdio_fsl_priv *priv = bus->priv; - - mdiobus_unregister(bus); - iounmap(priv->mdio_base); - mdiobus_free(bus); - return 0; } @@ -364,7 +342,6 @@ static struct platform_driver xgmac_mdio_driver = { .acpi_match_table = xgmac_acpi_match, }, .probe = xgmac_mdio_probe, - .remove = xgmac_mdio_remove, }; module_platform_driver(xgmac_mdio_driver); -- 2.25.1
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