[PATCH v5 2/6] PCI: spacemit-k1: Add multiple PHY handles support
Inochi Amaoto
inochiama at gmail.com
Tue Sep 22 18:49:00 PDT 2026
On Wed, Sep 09, 2026 at 05:27:03PM +0300, Andy Shevchenko wrote:
> On Wed, Sep 09, 2026 at 04:00:15PM +0800, Inochi Amaoto wrote:
> > On Tue, Sep 08, 2026 at 01:29:27PM +0300, Andy Shevchenko wrote:
> > > On Mon, Sep 07, 2026 at 07:26:01PM +0800, Inochi Amaoto wrote:
>
> ...
>
>
> > > > + count = devm_of_phy_bulk_get_all(dev, node, &k1->phys);
> > > > + if (count < 0)
> > > > + return count;
> > > > + if (count == 0 || count > data->max_phy_count)
> > > > + return -EINVAL;
> > >
> > > Elsewhere we distinguish count == 0 with -ENOENT.
> >
> > Is there is an example? I think it is suitable for its internal check
> > to translate -ENOENT to count 0, because no phys property means no
> > phy. For a get helper with optional semantics. I think it is fine
> > to return 0.
>
> This the brief list of what I roughly grepped with word "count" in the name.
>
> gpiod_count()
> of_hte_req_count()
> i2c_acpi_resource_count()
> ice_sriov_set_msix_vec_count()
> reset_control_get_count()
>
As the respond in the phy bulk data patchset, devm_of_phy_bulk_get_all()
should follow the optional semantics. So I think return 0 is a good
choice. Anyway, I have added the zero value check in the driver.
Regards,
Inochi
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