RE: [jornada] Problems with CyaCE-YACH

> maybe the -hh2 patch broke something?
> the kernel says:
> Configuring Jornada LCD
> [epson1356fb.c:92] e1356fb_set_var() entry
> [epson1356fb.c:147] e1356fb_set_var() exit
> and freezes at this point

I saw this under the NetBSD booter too It worked at one point
(2.4.10-rmkxx or something like that -- I never used the -hh kernels
directly) and stopped working later.

I eventually wrote a new 1356 driver, but it has some issues of its own
(colormap problems).

-ch

> -----Original Message-----
> From: jornada-admin@handhelds.org
> [mailto:jornada-admin@handhelds.org] On Behalf Of Jacek Lipkowski
> Sent: Thursday, March 28, 2002 2:52 AM
> To: jornada@handhelds.org
> Subject: Re: [jornada] Problems with CyaCE-YACH
>
>
> On Wed, 27 Mar 2002, John Ankcorn wrote:
>
> > The Jornada 720 does not use the SA1110 LCD controller for
> the display
> > (in fact the internal controller must be disabled, as the
> GPIO lines
> > used for the LCD actually control other hardware (e.g., sound).
>
> but i used epson1356fb.c
>
> > The controller chip actually used is an Epson 1356 and the
> driver for
> > this is in drivers/video/epson1356fb.c.
>
> maybe the -hh2 patch broke something?
> the kernel says:
> Configuring Jornada LCD
> [epson1356fb.c:92] e1356fb_set_var() entry
> [epson1356fb.c:147] e1356fb_set_var() exit
> and freezes at this point
>
> in the source in e1356fb_init() after the call to
> e1356fb_switch() a lot of registers are set and this is the
> place where it seems to hang (the printk at the end of
> e1356fb_init() isn't reached). i will try to put some
> printk's in there to see where it goes wrong (after i set up
> a crosscompiler for arm - i feel that i'm abusing the
> skiffcluster too much already).
>
> my guess is that the hardware was already preconfigured by
> wince, and that while epson1356fb.c works ok when it boots on
> cold-booted hardware it breaks when something has configured
> it previously. maybe it doesn't like powersave mode?
>
> jacek
>
> ps. the .tgz of my tree that was posted at my site was
> corrupt (fixed it), and i have posted the .config file in
> case you don't want the whole tree. i also extract the CIBD
> patch in case someones interested.
>
>
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Received on Sun Mar 31 20:29:50 2002