On 08.09.23 15:04, Sascha Hauer wrote: > On mdio busses the attached phys check for link status in a poller. > Add a slice dependency from the mdio bus to the I2C/SPI controller > so that we do not end up doing bus accesses while we are in a > I2C/SPI access on the same bus already. > > Signed-off-by: Sascha Hauer <s.hauer@xxxxxxxxxxxxxx> > --- > drivers/net/ksz9477.c | 7 +++++++ > 1 file changed, 7 insertions(+) > > diff --git a/drivers/net/ksz9477.c b/drivers/net/ksz9477.c > index 9665e0f723..1abea9d040 100644 > --- a/drivers/net/ksz9477.c > +++ b/drivers/net/ksz9477.c > @@ -464,6 +464,13 @@ static int microchip_switch_probe(struct device *dev) > if (ret) > return ret; > > + if (priv->i2c) > + slice_depends_on(mdiobus_slice(ds->slave_mii_bus), > + i2c_client_slice(priv->i2c)); > + else > + slice_depends_on(mdiobus_slice(ds->slave_mii_bus), > + spi_device_slice(priv->spi)); Is there no way to do this in the core? > + > return regmap_multi_register_cdev(priv->regmap[0], priv->regmap[1], > priv->regmap[2], NULL); > } -- Pengutronix e.K. | | Steuerwalder Str. 21 | http://www.pengutronix.de/ | 31137 Hildesheim, Germany | Phone: +49-5121-206917-0 | Amtsgericht Hildesheim, HRA 2686 | Fax: +49-5121-206917-5555 |
