linux-kernel - Re: [PATCHv4] phy: mapphone-mdm6600: Add USB PHY driver for MDM6600 on Droid 4

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Date:   Fri, 23 Mar 2018 11:54:55 +0100
From:   Pavel Machek <pavel@....cz>
To:     Dan Williams <dcbw@...hat.com>
Cc:     Tony Lindgren <tony@...mide.com>,
        Kishon Vijay Abraham I <kishon@...com>,
        linux-kernel@...r.kernel.org, linux-usb@...r.kernel.org,
        linux-omap@...r.kernel.org, devicetree@...r.kernel.org,
        Mark Rutland <mark.rutland@....com>,
        Marcel Partap <mpartap@....net>,
        Michael Scott <michael.scott@...aro.org>,
        Rob Herring <robh+dt@...nel.org>
Subject: Re: [PATCHv4] phy: mapphone-mdm6600: Add USB PHY driver for MDM6600
 on Droid 4

Hi!

> > > Do you have the related dts patches picked from next?
> > > 
> > > fdd192037fce ("ARM: dts: omap4-droid4: Fix USB PHY port naming")
> > > e5b9fd7bdeb5 ("ARM: dts: omap4-droid4: Configure MDM6600 USB PHY")
> > > 
> > > But yeah all you need to do is have phy-mapphone-mdm6600 and
> > > ohci-platform loaded and then ifconfig should show four wwan
> > > interfaces being added.
> > 
> > ifconfig? I thought I should get /dev/ttyUSB0..3?
> 
> I believe they are QMI via qmi_wwan, not TTYs.

Well, qmicli expects device path... and I see nothing on ifconfig. Any
idea how the device would be named?

But I believe it just does not work, see the qcserial experiment with
new_id below.

Best regards,
								Pavel
								
> > But qcserial driver does not bind to that. If I attempt to force it:
> > 
> > root@...uan:/sys/bus/usb-serial/drivers/qcserial# lsusb
> > Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
> > Bus 002 Device 002: ID 22b8:2a70 Motorola PCS
> > Bus 002 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
> > root@...uan:/sys/bus/usb-serial/drivers/qcserial# echo "22b8 2a70" >
> > new_id
> > [ 2059.267730] usb 2-1: unknown number of interfaces: 9
> > [ 2059.272949] usb 2-1: unknown number of interfaces: 9
> > [ 2059.278045] usb 2-1: unknown number of interfaces: 9
> > [ 2059.283233] usb 2-1: unknown number of interfaces: 9
> > [ 2059.288330] usb 2-1: unknown number of interfaces: 9
> > [ 2059.293457] usb 2-1: unknown number of interfaces: 9
> > [ 2059.298553] usb 2-1: unknown number of interfaces: 9
> > [ 2059.303680] usb 2-1: unknown number of interfaces: 9
> > [ 2059.308776] usb 2-1: unknown number of interfaces: 9
> > 
> > I don't get anything useful. Do I need to boot android before booting
> > Linux or something? How does your lsusb look like?
> > 
> > Thanks,
> > 								Pavel

-- 
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html

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