| Message ID | 20210621173028.3541424-5-mw@semihalf.com |
|---|---|
| State | New |
| Headers | show |
| Series | ACPI MDIO support for Marvell controllers | expand |
On Mon, Jun 21, 2021 at 07:30:26PM +0200, Marcin Wojtas wrote: > This patch introducing ACPI support for the mvmdio driver by adding > acpi_match_table with two entries: > > * "MRVL0100" for the SMI operation > * "MRVL0101" for the XSMI mode Same as the freescale MDIO bus driver, you should add depends on FWNODE_MDIO Otherwise you might find randconfig builds end up with it disabled, and then linker errors. Andrew
śr., 23 cze 2021 o 22:28 Andrew Lunn <andrew@lunn.ch> napisał(a): > > On Mon, Jun 21, 2021 at 07:30:26PM +0200, Marcin Wojtas wrote: > > This patch introducing ACPI support for the mvmdio driver by adding > > acpi_match_table with two entries: > > > > * "MRVL0100" for the SMI operation > > * "MRVL0101" for the XSMI mode > > Same as the freescale MDIO bus driver, you should add > > depends on FWNODE_MDIO > > Otherwise you might find randconfig builds end up with it disabled, > and then linker errors. > The CONFIG_MVMDIO is selected by CONFIG_MV643XX_ETH and actually there is a real example of the previously discussed fallback to the mdiobus_register() (without DT/ACPI and now FWNODE_MDIO). I just checked and successfully built the kernel out of the dove_defconfig. I only needed below fix, that will be submitted in v4: --- a/include/linux/fwnode_mdio.h +++ b/include/linux/fwnode_mdio.h @@ -40,7 +40,7 @@ static inline int fwnode_mdiobus_register(struct mii_bus *bus, * This way, we don't have to keep compat bits around in drivers. */ - return mdiobus_register(mdio); + return mdiobus_register(bus); } #endif In order to leave dove_defconfig intact, I'd keep the current Kconfig shape for this driver. Thanks, Marcin
On Wed, Jun 23, 2021 at 11:58:14PM +0200, Marcin Wojtas wrote: > śr., 23 cze 2021 o 22:28 Andrew Lunn <andrew@lunn.ch> napisał(a): > > > > On Mon, Jun 21, 2021 at 07:30:26PM +0200, Marcin Wojtas wrote: > > > This patch introducing ACPI support for the mvmdio driver by adding > > > acpi_match_table with two entries: > > > > > > * "MRVL0100" for the SMI operation > > > * "MRVL0101" for the XSMI mode > > > > Same as the freescale MDIO bus driver, you should add > > > > depends on FWNODE_MDIO > > > > Otherwise you might find randconfig builds end up with it disabled, > > and then linker errors. > > > > The CONFIG_MVMDIO is selected by CONFIG_MV643XX_ETH and actually there > is a real example of the previously discussed fallback to the > mdiobus_register() (without DT/ACPI and now FWNODE_MDIO). I just > checked and successfully built the kernel out of the dove_defconfig. I > only needed below fix, that will be submitted in v4: You could be correct, but i've seen randconfig builds find issues. So i tend to add dependencies to avoid possible problems. Such problem reports tend to come weeks later, when Arnd does such builds. Andrew
diff --git a/drivers/net/ethernet/marvell/mvmdio.c b/drivers/net/ethernet/marvell/mvmdio.c index d14762d93640..7537ee3f6622 100644 --- a/drivers/net/ethernet/marvell/mvmdio.c +++ b/drivers/net/ethernet/marvell/mvmdio.c @@ -17,8 +17,10 @@ * warranty of any kind, whether express or implied. */ +#include <linux/acpi.h> #include <linux/clk.h> #include <linux/delay.h> +#include <linux/fwnode_mdio.h> #include <linux/interrupt.h> #include <linux/io.h> #include <linux/kernel.h> @@ -281,7 +283,7 @@ static int orion_mdio_probe(struct platform_device *pdev) struct orion_mdio_dev *dev; int i, ret; - type = (enum orion_mdio_bus_type)of_device_get_match_data(&pdev->dev); + type = (enum orion_mdio_bus_type)device_get_match_data(&pdev->dev); r = platform_get_resource(pdev, IORESOURCE_MEM, 0); if (!r) { @@ -369,7 +371,7 @@ static int orion_mdio_probe(struct platform_device *pdev) goto out_mdio; } - ret = of_mdiobus_register(bus, pdev->dev.of_node); + ret = fwnode_mdiobus_register(bus, pdev->dev.fwnode); if (ret < 0) { dev_err(&pdev->dev, "Cannot register MDIO bus (%d)\n", ret); goto out_mdio; @@ -421,12 +423,20 @@ static const struct of_device_id orion_mdio_match[] = { }; MODULE_DEVICE_TABLE(of, orion_mdio_match); +static const struct acpi_device_id orion_mdio_acpi_match[] = { + { "MRVL0100", BUS_TYPE_SMI }, + { "MRVL0101", BUS_TYPE_XSMI }, + { }, +}; +MODULE_DEVICE_TABLE(acpi, orion_mdio_acpi_match); + static struct platform_driver orion_mdio_driver = { .probe = orion_mdio_probe, .remove = orion_mdio_remove, .driver = { .name = "orion-mdio", .of_match_table = orion_mdio_match, + .acpi_match_table = ACPI_PTR(orion_mdio_acpi_match), }, };
This patch introducing ACPI support for the mvmdio driver by adding acpi_match_table with two entries: * "MRVL0100" for the SMI operation * "MRVL0101" for the XSMI mode Signed-off-by: Marcin Wojtas <mw@semihalf.com> --- drivers/net/ethernet/marvell/mvmdio.c | 14 ++++++++++++-- 1 file changed, 12 insertions(+), 2 deletions(-)