Re: [PATCH 2/4 v8] i.MX31: Image Processing Unit DMA and IRQ drivers
From: Valentin Longchamp <hidden>
Date: 2009-01-23 11:22:58
Guennadi Liakhovetski wrote:
On Fri, 23 Jan 2009, Valentin Longchamp wrote:quoted
So the devices are registered fine. My problem is that the driver is not registered for me: This should be done by the subsys_initcall but ipu_init is never called.Are you sure you have CONFIG_MX3_IPU=y?... sorry, I don't see any other possibility why a subsys_initcall() would not be called. You can also check if it's being compiled and linked, and if you do arm-linux-objdump -Dr vmlinux |grep ipu_init you should see something like c0014c94 <ipu_init>: c0014c94: e1a0c00d mov ip, sp -- c0019c70 <__initcall_ipu_init4>: c0019c70: c0014c94 mulgt r1, r4, ip
Well I have all of them ... Taht's why I really don't understand what's
going on.
However I don't have the same asm instruction for the initcall:
c00192b4 <__initcall_ipu_init4>:
c00192b4: c00141e8 .word 0xc00141e8
But that's the address of my ipu_init
c00141e8 <ipu_init>:
c00141e8: e1a0c00d mov ip, sp
c00141ec: e92dd800 push {fp, ip, lr, pc}
c00141f0: e24cb004 sub fp, ip, #4 ; 0x4
I think something is working badly with the initcall (subsys). Has
someone already experienced something similar ?
Thanks
Val
--
Valentin Longchamp, PhD Student, EPFL-STI-LSRO1
valentin.longchamp@epfl.ch, Phone: +41216937827
http://people.epfl.ch/valentin.longchamp
MEA3485, Station 9, CH-1015 Lausanne
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