* Pavel Machek [off-list ref] [200513 19:10]:

Hi!

quoted

Here's the updated set of these patches fixed up for Johan's and
Pavel's earlier comments.

This series does the following:

1. Adds functions to n_gsm.c for serdev-ngsm.c driver to use

2. Adds a generic serdev-ngsm.c driver that brings up the TS 27.010
   TTY ports configured in devicetree with help of n_gsm.c

3. Allows the use of standard Linux device drivers for dedicated
   TS 27.010 channels for devices like GNSS and ALSA found on some
   modems for example

quoted

4. Adds a gnss-motmdm consumer driver for the GNSS device found on
   the Motorola Mapphone MDM6600 modem on devices like droid4

It does one thing ... it turns Droid 4 into useful phone! 

Right, a minor detail I forgot :)

Thanks a lot. I believe these are same patches as in
droid4-pending-v5.7 branch, so whole series is

Tested-by: Pavel Machek <redacted>

Getting this into 5.8 would be nice :-).

quoted

Now without the chardev support, the /dev/gsmtty* using apps need
to use "U1234AT+CFUN?" format for the packets. The advantage is
less kernel code, and we keep the existing /dev/gsmtty* interface.

If we still really need the custom chardev support, that can now
be added as needed with the channel specific consumer driver(s),
but looks like this won't be needed based on Pavel's ofono work.

These work for me, and I have patched ofono with basic
functionality. It is no longer possible to use minicom for debugging,
but printf can be used instead, so that's not much of a problem.

I have adjusted ofono code, and moved away from normal AT support
code. More API changes would not be welcome :-).

There is no need for a new API or API changes as we now use the
existing n_gsm tty interface for /dev/gsmtty* devices that have
been around for years.

Regards,

Tony