On Thu, May 6, 2021 at 6:34 PM Michael Walle [off-list ref] wrote:

Hi Robert,

Am 2021-04-30 14:35, schrieb Robert Marko:

quoted

Delta TN48M switches have a Lattice CPLD that serves
multiple purposes including being a GPIO expander.
So lets add the MFD core driver for it.

Did you have a look at mfd/simple-mfd-i2c.c?

Hi Michael,

Yes, that was my first idea but we have a requirement to expose CPLD
information via debugfs as there are userspace applications using it.
And simple-mfd-i2c does not allow us to do so.

Regards,
Robert

-michael

-- 
Robert Marko
Staff Embedded Linux Engineer
Sartura Ltd.
Lendavska ulica 16a
10000 Zagreb, Croatia
Email: robert.marko@sartura.hr
Web: www.sartura.hr