Re: Epson S1D13A04 video driver

On Thu, 6 Nov 2008 07:40:43 -0500
"Kimble, James" [off-list ref] wrote:

I'm working on project that needs to utilize the Epson S1D13A04 device
on a Coldfire processor based system running the Linux 2.6.25 kernel.
The driver I see in the kernel sources had the name of Thibaut Varene in
it and he told me you are the current maintainer of this driver.

I took maintainership as of 2.6.27. I've CC'ed linux-fb since thats the
relevant mailinglist.

The driver in the 2.6.25 kernel supports the s1d13xxx series of chips
but there's a good deal of variation in this series (register
assignments and sizes, memory size, etc.). Can you tell me if there is a
driver more specific to my chip (the S1D13A04)? I've begun the process
of porting the existing driver to work with my chip but it's a pain. I'm
really trying to save myself some time.

Without looking at datasheets of your platform I would say that
you would be best of sticking with the s1d13xxx driver. The reason for
me taking maintainership is that there have been very little progress in
the driver for the last year and it's in need of updates. The goal
is to make it a truly 13xxx driver.

So far I've started to familiarize myself with the driver and also
added some revision detection (it was locked to one revision). 

If there is something obvious lacking in the resources supplied
to the driver thats where I would start. Can you give some more specific
details on what you need?

Best wishes
Kristoffer

Any help or documentation you can offer would be greatly appreciated.

By documentation you mean? If you are looking for examples using the
driver you can check jornada720.c. It should give a clear picture
of howto supply the driver with framebuffer, memory areas and also
some register initial values.

Thanks,

James Kimble

-- 
Kristoffer Ericson [off-list ref]