From: Tony Lindgren <tony@atomide.com>
To: Roger Quadros <rogerq@ti.com>
Cc: gregkh@linuxfoundation.org, linux-usb@vger.kernel.org,
Alan Stern <stern@rowland.harvard.edu>,
Johan Hovold <johan@kernel.org>,
Ladislav Michl <ladis@linux-mips.org>,
Peter Ujfalusi <peter.ujfalusi@ti.com>
Subject: [v3] usb: ehci-omap: Fix deferred probe for phy handling
Date: Fri, 14 Dec 2018 06:09:49 -0800 [thread overview]
Message-ID: <20181214140949.GX39861@atomide.com> (raw)
* Roger Quadros <rogerq@ti.com> [181214 09:36]:
> PHY model is being used on omap5 platforms even if port mode
> is not OMAP_EHCI_PORT_MODE_PHY. So don't guess if PHY is required
> or not based on PHY mode.
>
> If PHY is provided in device tree, it must be required. So, if
> devm_usb_get_phy_by_phandle() gives us an error code other
> than -ENODEV (no PHY) then error out.
>
> This fixes USB Ethernet on omap5-uevm if PHY happens to
> probe after EHCI thus causing a -EPROBE_DEFER.
Acked-by: Tony Lindgren <tony@atomide.com>
next reply other threads:[~2018-12-14 14:09 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-12-14 14:09 Tony Lindgren [this message]
-- strict thread matches above, loose matches on Subject: below --
2018-12-14 15:06 [v3] usb: ehci-omap: Fix deferred probe for phy handling Alan Stern
2018-12-14 9:49 Peter Ujfalusi
2018-12-14 9:36 Roger Quadros
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