Re: [PATCH v3] net: ethernet: support "fixed-link" DT node on nb8800 driver

From: Måns Rullgård
Date: Fri Feb 05 2016 - 10:08:50 EST


Sebastian Frias <sf84@xxxxxxxxxxx> writes:

> On 02/05/2016 03:34 PM, Måns Rullgård wrote:
>> Sebastian Frias <sf84@xxxxxxxxxxx> writes:
>>
>>> Signed-off-by: Sebastian Frias <sf84@xxxxxxxxxxx>
>>
>> Please change the subject to something like "net: ethernet: nb8800:
>> support fixed-link DT node" and add a comment body.
>
> The subject is pretty explicit for such a simple patch, what else
> could I add that wouldn't be unnecessary chat?

It's customary to include a description body even if it's little more
than a restatement of the subject. Also, while the subject usually only
says _what_ the patch does, the body should additionally state _why_ it
is needed.

>>> ---
>>> drivers/net/ethernet/aurora/nb8800.c | 14 +++++++++++++-
>>> 1 file changed, 13 insertions(+), 1 deletion(-)
>>>
>>> diff --git a/drivers/net/ethernet/aurora/nb8800.c
>>> b/drivers/net/ethernet/aurora/nb8800.c
>>> index ecc4a33..e1fb071 100644
>>> --- a/drivers/net/ethernet/aurora/nb8800.c
>>> +++ b/drivers/net/ethernet/aurora/nb8800.c
>>> @@ -1460,7 +1460,19 @@ static int nb8800_probe(struct platform_device *pdev)
>>> goto err_disable_clk;
>>> }
>>>
>>> - priv->phy_node = of_parse_phandle(pdev->dev.of_node, "phy-handle", 0);
>>> + if (of_phy_is_fixed_link(pdev->dev.of_node)) {
>>> + ret = of_phy_register_fixed_link(pdev->dev.of_node);
>>> + if (ret < 0) {
>>> + dev_err(&pdev->dev, "bad fixed-link spec\n");
>>> + goto err_free_bus;
>>> + }
>>> + priv->phy_node = of_node_get(pdev->dev.of_node);
>>> + }
>>> +
>>> + if (!priv->phy_node)
>>> + priv->phy_node = of_parse_phandle(pdev->dev.of_node,
>>> + "phy-handle", 0);
>>> +
>>> if (!priv->phy_node) {
>>> dev_err(&pdev->dev, "no PHY specified\n");
>>> ret = -ENODEV;
>>> --
>>> 2.1.4
>>

--
Måns Rullgård