[Bug 80331] [BISECTED]Radeon driver broken in kernel 3.12.15 onwards for ATI Radeon HD4770 Card

[bugzilla-daemon at bugzilla.kernel.org]

https://bugzilla.kernel.org/show_bug.cgi?id=80331

Colin <colin.bruce at ctalk.co.uk> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
         Resolution|---                         |INVALID

--- Comment #16 from Colin <colin.bruce at ctalk.co.uk> ---
(In reply to Alex Deucher from comment #15)
> (In reply to Colin from comment #14)
> > 
> > Thanks I'll give it a go when I home from work tonight. I am sure that will
> > be the solution. Strange thing is that even with the firmware not loaded the
> > card works fine when the patch is not present.
> 
> The patch changes when the firmware loads during driver init.  With the
> patch the failure happens earlier so the error is fatal and the driver
> doesn't load.  Without the patch, the driver still loads but all
> acceleration, interrupts, and most other features are disabled so it's not
> exactly working.

That explains it. I guess when it is a module it loads the firmware when the
module loads and initializes. I had a look at the request_firmware() function
and I think it will read the firmware if it is not already in memory. I suspect
that can't work when it is static as the driver is initialized before the disk
drivers are loaded. Anyway the so called "bug" turns out to be my stupidity:-(
Such is life.

In any event thanks for all your help and the explanation.

Best wishes.....
Colin

PS I'm not sure what the correct code from the list is. There isn't a "Stupid
User" one so I picked Invalid. I hope that's ok.

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