Re: [RFC PATCH 2/4] net: phy: Add support for AC200 EPHY

Jernej Škrabec
2020-04-17T16:15:29Z

Dne četrtek, 16. april 2020 ob 22:18:52 CEST je Heiner Kallweit napisal(a):
> On 16.04.2020 20:57, Jernej Skrabec wrote:
> > AC200 MFD IC supports Fast Ethernet PHY. Add a driver for it.
> >
> > Signed-off-by: Jernej Skrabec <jernej.skrabec@siol.net>
> > ---
> >
> > drivers/net/phy/Kconfig | 7 ++
> > drivers/net/phy/Makefile | 1 +
> > drivers/net/phy/ac200.c | 206 +++++++++++++++++++++++++++++++++++++++
> > 3 files changed, 214 insertions(+)
> > create mode 100644 drivers/net/phy/ac200.c
> >
> > diff --git a/drivers/net/phy/Kconfig b/drivers/net/phy/Kconfig
> > index 3fa33d27eeba..16af69f69eaf 100644
> > --- a/drivers/net/phy/Kconfig
> > +++ b/drivers/net/phy/Kconfig
> > @@ -288,6 +288,13 @@ config ADIN_PHY
> >
> > - ADIN1300 - Robust,Industrial, Low Latency 10/100/1000 Gigabit
> >
> > Ethernet PHY
> >
> > +config AC200_PHY
> > + tristate "AC200 EPHY"
> > + depends on NVMEM
> > + depends on OF
> > + help
> > + Fast ethernet PHY as found in X-Powers AC200 multi-function
device.
> > +
> >
> > config AMD_PHY
> >
> > tristate "AMD PHYs"
> > ---help---
> >
> > diff --git a/drivers/net/phy/Makefile b/drivers/net/phy/Makefile
> > index 2f5c7093a65b..b0c5b91900fa 100644
> > --- a/drivers/net/phy/Makefile
> > +++ b/drivers/net/phy/Makefile
> > @@ -53,6 +53,7 @@ obj-$(CONFIG_SFP) += sfp.o
> >
> > sfp-obj-$(CONFIG_SFP) += sfp-bus.o
> > obj-y += $(sfp-obj-y) $(sfp-obj-m)
> >
> > +obj-$(CONFIG_AC200_PHY) += ac200.o
> >
> > obj-$(CONFIG_ADIN_PHY) += adin.o
> > obj-$(CONFIG_AMD_PHY) += amd.o
> > aquantia-objs += aquantia_main.o
> >
> > diff --git a/drivers/net/phy/ac200.c b/drivers/net/phy/ac200.c
> > new file mode 100644
> > index 000000000000..3d7856ff8f91
> > --- /dev/null
> > +++ b/drivers/net/phy/ac200.c
> > @@ -0,0 +1,206 @@
> > +// SPDX-License-Identifier: GPL-2.0+
> > +/**
> > + * Driver for AC200 Ethernet PHY
> > + *
> > + * Copyright (c) 2020 Jernej Skrabec <jernej.skrabec@siol.net>
> > + */
> > +
> > +#include <linux/kernel.h>
> > +#include <linux/module.h>
> > +#include <linux/mfd/ac200.h>
> > +#include <linux/nvmem-consumer.h>
> > +#include <linux/of.h>
> > +#include <linux/phy.h>
> > +#include <linux/platform_device.h>
> > +
> > +#define AC200_EPHY_ID 0x00441400
> > +#define AC200_EPHY_ID_MASK 0x0ffffff0
> > +
>
> You could use PHY_ID_MATCH_MODEL() here.

Hm... This doesn't work with dynamically allocated memory, right?

Best regards,
Jernej