From: Calvin Johnson <calvin.johnson@oss.nxp.com>
To: Andy Shevchenko <andy.shevchenko@gmail.com>
Cc: Grant Likely <grant.likely@arm.com>,
"Rafael J . Wysocki" <rafael@kernel.org>,
Jeremy Linton <jeremy.linton@arm.com>,
Andrew Lunn <andrew@lunn.ch>,
Florian Fainelli <f.fainelli@gmail.com>,
Russell King - ARM Linux admin <linux@armlinux.org.uk>,
Cristi Sovaiala <cristian.sovaiala@nxp.com>,
Florin Laurentiu Chiculita <florinlaurentiu.chiculita@nxp.com>,
Ioana Ciornei <ioana.ciornei@nxp.com>,
Madalin Bucur <madalin.bucur@oss.nxp.com>,
Heikki Krogerus <heikki.krogerus@linux.intel.com>,
Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
"linux.cj" <linux.cj@gmail.com>, netdev <netdev@vger.kernel.org>,
ACPI Devel Maling List <linux-acpi@vger.kernel.org>,
linux-arm Mailing List <linux-arm-kernel@lists.infradead.org>,
Diana Madalina Craciun <diana.craciun@nxp.com>,
Laurentiu Tudor <laurentiu.tudor@nxp.com>,
"David S. Miller" <davem@davemloft.net>,
Ioana Radulescu <ruxandra.radulescu@nxp.com>,
Jakub Kicinski <kuba@kernel.org>
Subject: Re: [net-next PATCH v1 6/7] net: dpaa2-mac: Add ACPI support for DPAA2 MAC driver
Date: Sat, 3 Oct 2020 22:00:25 +0530 [thread overview]
Message-ID: <20201003163025.GA28093@lsv03152.swis.in-blr01.nxp.com> (raw)
In-Reply-To: <CAHp75Vfu_-=+CNYoRd141md902N2uR+K0xvHryfH9YCQi9Hp4w@mail.gmail.com>
Hi Andy,
On Thu, Oct 01, 2020 at 06:36:06PM +0300, Andy Shevchenko wrote:
> On Wed, Sep 30, 2020 at 7:06 PM Calvin Johnson
> <calvin.johnson@oss.nxp.com> wrote:
> >
> > Modify dpaa2_mac_connect() to support ACPI along with DT.
> > Modify dpaa2_mac_get_node() to get the dpmac fwnode from either
> > DT or ACPI.
> >
> > Replace of_get_phy_mode with fwnode_get_phy_mode to get
> > phy-mode for a dpmac_node.
> >
> > Use helper function phylink_fwnode_phy_connect() to find phy_dev and
> > connect to mac->phylink.
>
> ...
>
> > #include "dpaa2-eth.h"
> > #include "dpaa2-mac.h"
>
> > +#include <linux/acpi.h>
>
> Please, put generic headers first.
>
> > + struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL };
> > + struct fwnode_handle *dpmacs, *dpmac = NULL;
> > + unsigned long long adr;
> > + acpi_status status;
> > int err;
> > + u32 id;
> >
> > - dpmacs = of_find_node_by_name(NULL, "dpmacs");
> > - if (!dpmacs)
> > - return NULL;
> > + if (is_of_node(dev->parent->fwnode)) {
> > + dpmacs = device_get_named_child_node(dev->parent, "dpmacs");
> > + if (!dpmacs)
> > + return NULL;
> > +
> > + while ((dpmac = fwnode_get_next_child_node(dpmacs, dpmac))) {
> > + err = fwnode_property_read_u32(dpmac, "reg", &id);
> > + if (err)
> > + continue;
> > + if (id == dpmac_id)
> > + return dpmac;
> > + }
> >
> > + } else if (is_acpi_node(dev->parent->fwnode)) {
> > + device_for_each_child_node(dev->parent, dpmac) {
> > + status = acpi_evaluate_integer(ACPI_HANDLE_FWNODE(dpmac),
> > + "_ADR", NULL, &adr);
> > + if (ACPI_FAILURE(status)) {
> > + pr_debug("_ADR returned %d on %s\n",
> > + status, (char *)buffer.pointer);
> > + continue;
> > + } else {
> > + id = (u32)adr;
> > + if (id == dpmac_id)
> > + return dpmac;
> > + }
> > + }
>
> Can you rather implement generic one which will be
>
> int fwnode_get_child_id(struct fwnode_handle *fwnode, u64 *id);
>
> and put the logic of retrieving 'reg' or _ADR? Also, for the latter we
> have a special macro
> METHOD_NAME__ADR.
>
> See [1] as well. Same idea I have shared already.
>
> [1]: https://lore.kernel.org/linux-iio/20200824054347.3805-1-william.sung@advantech.com.tw/T/#m5f61921fa67a5b40522b7f7b17216e0d204647be
>
> ...
>
> > - of_node_put(dpmac_node);
> > + if (is_of_node(dpmac_node))
> > + of_node_put(to_of_node(dpmac_node));
>
> I'm not sure why you can't use fwnode_handle_put()?
>
> > + if (is_of_node(dpmac_node))
> > + of_node_put(to_of_node(dpmac_node));
>
> Ditto.
Sure. I'll take care of these comments.
Thanks
Calvin
next prev parent reply other threads:[~2020-10-03 16:31 UTC|newest]
Thread overview: 32+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-09-30 16:04 [net-next PATCH v1 0/7] ACPI support for dpaa2 driver Calvin Johnson
2020-09-30 16:04 ` [net-next PATCH v1 1/7] Documentation: ACPI: DSD: Document MDIO PHY Calvin Johnson
2020-09-30 16:37 ` Rafael J. Wysocki
2020-10-01 13:26 ` Calvin Johnson
2020-10-02 11:08 ` Grant Likely
2020-10-02 14:13 ` Rafael J. Wysocki
2020-09-30 16:04 ` [net-next PATCH v1 2/7] net: phy: Introduce phy related fwnode functions Calvin Johnson
2020-09-30 22:03 ` David Miller
2020-10-01 3:58 ` Calvin Johnson
2020-09-30 16:04 ` [net-next PATCH v1 3/7] net: phy: Introduce fwnode_get_phy_id() Calvin Johnson
2020-09-30 16:34 ` Andrew Lunn
2020-09-30 18:07 ` Russell King - ARM Linux admin
2020-09-30 18:19 ` Andrew Lunn
2020-10-01 4:00 ` Calvin Johnson
2020-10-02 10:48 ` Grant Likely
2020-10-02 11:05 ` Grant Likely
2020-10-02 15:14 ` Florian Fainelli
2020-10-02 15:50 ` Russell King - ARM Linux admin
2020-10-03 18:03 ` Calvin Johnson
2020-10-03 18:00 ` Calvin Johnson
2020-09-30 16:04 ` [net-next PATCH v1 4/7] net: mdiobus: Introduce fwnode_mdiobus_register_phy() Calvin Johnson
2020-09-30 22:04 ` David Miller
2020-09-30 16:04 ` [net-next PATCH v1 5/7] phylink: introduce phylink_fwnode_phy_connect() Calvin Johnson
2020-09-30 16:04 ` [net-next PATCH v1 6/7] net: dpaa2-mac: Add ACPI support for DPAA2 MAC driver Calvin Johnson
2020-10-01 15:36 ` Andy Shevchenko
2020-10-03 16:30 ` Calvin Johnson [this message]
2020-10-02 11:22 ` Grant Likely
2020-10-03 17:39 ` Calvin Johnson
2020-10-07 15:50 ` Calvin Johnson
2020-09-30 16:04 ` [net-next PATCH v1 7/7] net/fsl: Use _ADR ACPI object to register PHYs Calvin Johnson
2020-09-30 16:27 ` Andrew Lunn
2020-09-30 22:04 ` David Miller
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