Thread (52 messages) 52 messages, 4 authors, 2009-06-22

Re: [PATCH 04/20] omapfb: Add support for the Amstrad Delta LCD

From: Jonathan McDowell <hidden>
Date: 2009-06-05 15:39:17
Also in: linux-omap

On Fri, Jun 05, 2009 at 12:38:22PM +0200, Janusz Krzysztofik wrote:
Thursday 04 June 2009 19:52:29 Imre Deak napisał(a):
quoted
From: Jonathan McDowell <redacted>

This is an updated version of the LCD driver for the Amstrad Delta to
take into account the recent changes to the omapfb infrastructure. The
Delta features a 480x320 12 bit DSTN panel.
I'd really love to see the lcd_ams_delta support included in the mainline 
kernel, but I am not sure if it is ready for submission, as I still have 
issues with it. It does work perfectly unless power management is turned on.
With CONFIG_PM=y, the omapfb device, after initially starting correctly, 
breaks with the following error messages:

omapfb omapfb: resetting (status 0xffffff96,reset count 1)
...
omapfb omapfb: resetting (status 0xffffff96,reset count 100)
omapfb omapfb: too many reset attempts, giving up.

Tested with linux-2.6.30-rc5 and linux-omap revision 
90e758af52ba803cba233fabee81176d99589f09. Error messages do not appear when 
CONFIG_PM=n or lcd_ams_delta.o is removed from omapfb-objs.

Please let me know what else I can do to help in resolving this issue.
 
Reporting it was a good start; it's the first I've heard of this issue.
Looking at the E3 configs I have lying around it looks like none of them
have CONFIG_PM set, so it's possible most people have just been using
the defconfig or a minor variation of it. I don't have my E3 convenient
at present to investigate however.

J.

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