UCB1400 Touchscreen kernel crash at boot
Patrick
kpa_info at yahoo.fr
Thu Nov 19 06:27:18 EST 2009
Ok, thanks a lot it's working now. According to your third patch I have simply changed :
static struct platform_device colibri_ts_device = {
.name = "ucb1400_ts",
.id = -1,
};
to
static struct platform_device colibri_ts_device = {
.name = "ucb1400_core",
.id = -1,
};
in the colibri_pxa320.c file
Patrick
--- En date de : Jeu 19.11.09, Marek Vasut <marek.vasut at gmail.com> a écrit :
> De: Marek Vasut <marek.vasut at gmail.com>
> Objet: Re: UCB1400 Touchscreen kernel crash at boot
> À: linux-arm at lists.infradead.org
> Cc: "Patrick" <kpa_info at yahoo.fr>
> Date: Jeudi 19 Novembre 2009, 11h37
> Dne Čt 19. listopadu 2009 11:15:37
> Patrick napsal(a):
> > Hello,
> >
> > I have migrated from 2.6.26 to 2.6.28 kernel on a ARM
> PXA320 platform. I
> > have a touchscreen that use UCB1400.
> >
> > On the 2.6.26 kernel the touchscreen was working well.
> On the 2.6.28 I have
> > the following crash at boot:
> >
> > mice: PS/2 mouse device common for all mice
> > Unable to handle kernel NULL pointer dereference at
> virtual address
> > 00000000 pgd = c0004000
> > [00000000] *pgd=00000000
> > Internal error: Oops: 805 [#1] PREEMPT
> > Modules linked in:
> > CPU: 0 Not tainted (2.6.28-recoms
> #9)
> > PC is at ucb1400_ts_probe+0x20/0x428
> > LR is at input_allocate_device+0x58/0x94
> > pc : [<c023d544>] lr :
> [<c02322d0>] psr: a0000013
> > sp : c7817d38 ip : c7817d20 fp : c7817d5c
> > r10: c041f100 r9 : 00000000 r8 : 00000001
> > r7 : 00000000 r6 : c040bc28 r5 :
> c0425220 r4 : c040bc30
> > r3 : c78aa7a8 r2 : c78aa7b0 r1 :
> c03d8180 r0 : c78aa000
> > Flags: NzCv IRQs on FIQs on Mode
> SVC_32 ISA ARM Segment kernel
> > Control: 0400397f Table: a0004018 DAC:
> 00000035
> > Process swapper (pid: 1, stack limit = 0xc7816270)
> > Stack: (0xc7817d38 to 0xc7818000)
> > 7d20:
>
>
> c00e219c
> > c00e1fcc 7d40: c040bc30 c0425220 c0425220
> c0425220 c7817d6c c7817d60
> > c01c07dc c023d530 7d60: c7817d8c c7817d70
> c01bf8a8 c01c07c8 c0061ec8
> > c040bc30 c0425220 c040bcdc 7d80: c7817dac
> c7817d90 c01bf9c8 c01bf7c0
> > c7817dac 00000000 c7817db0 c01bf95c 7da0:
> c7817dd4 c7817db0 c01bee48
> > c01bf968 c78034d8 c040bc78 00000000 c0425220
> 7dc0: c7a7b3e0 c001cd18
> > c7817de4 c7817dd8 c01bf6c8 c01bee08 c7817e14
> c7817de8 7de0: c01bf2e4
> > c01bf6b4 c03a9518 c0425220 c0425220 c0023f04
> 00000000 c001cd18 7e00:
> > 00000001 00000000 c7817e3c c7817e18 c01bfcac
> c01bf248 c042cb84 c0023f04
> > 7e20: 00000000 c001cd18 00000001 00000000
> c7817e4c c7817e40 c01c0b78
> > c01bfc20 7e40: c7817e5c c7817e50 c001cd2c
> c01c0b0c c7817fdc c7817e60
> > c002d300 c001cd24 7e60: 000000d0 c042ca08
> 00000000 c7812cc0 00000000
> > c7802160 c7817ee4 c7817e88 7e80: c0079548
> c0079018 c7817edc 00000000
> > c7800de0 00000179 c7817eec 00000000 7ea0:
> c7800de0 0000017a c7817ed4
> > c7817eb8 c0098228 c0189b88 c78035a4 0000017a
> 7ec0: c78035a0 00000000
> > c7817f34 c7817ed8 c018050c c0098210 c7817f04
> c7817f54 7ee0: 00000000
> > 00000000 000000d0 c7811e30 00000000 c7816000
> c7817f2c c7817f08 7f00:
> > c0180768 c0040df0 c0435cb8 c7816000 c78378a0
> c7836180 c0435cb8 00000000
> > 7f20: 00000000 00000000 c7817f44 c7817f38
> c0180548 c0180340 c7817f74
> > c7817f48 7f40: c00dac68 c0040df0 c7836180
> c03ac908 c0410894 0000017a
> > c78378a0 c7817f9e 7f60: 000000bf c0435cb8
> c7817f94 c7817f78 c00dade8
> > c00daac8 c7817f00 c7836180 7f80: c00daee8
> c0410894 c7817fc4 c7817f98
> > c0071b1c c00dad74 c01bddd8 39311530 7fa0:
> 00000031 00000000 000000c0
> > c04108d0 00000000 00000000 c7817fdc c00241c0
> 7fc0: c0023f04 00000000
> > 00000000 00000000 c7817ff4 c7817fe0 c0008740
> c002d2ac 7fe0: 00000000
> > 00000000 00000000 c7817ff8 c004ad5c c00086dc
> 00000000 00000000 Backtrace:
> > [<c023d524>] (ucb1400_ts_probe+0x0/0x428) from
> [<c01c07dc>]
> > (platform_drv_probe+0x20/0x24) r7:c0425220
> r6:c0425220 r5:c0425220
> > r4:c040bc30
> > [<c01c07bc>] (platform_drv_probe+0x0/0x24) from
> [<c01bf8a8>]
> > (driver_probe_device+0xf4/0x1a8)
> [<c01bf7b4>]
> > (driver_probe_device+0x0/0x1a8) from
> [<c01bf9c8>]
> > (__driver_attach+0x6c/0x90) r6:c040bcdc
> r5:c0425220 r4:c040bc30
> > [<c01bf95c>] (__driver_attach+0x0/0x90) from
> [<c01bee48>]
> > (bus_for_each_dev+0x4c/0x84) r6:c01bf95c
> r5:c7817db0 r4:00000000
> > [<c01bedfc>] (bus_for_each_dev+0x0/0x84) from
> [<c01bf6c8>]
> > (driver_attach+0x20/0x28) r7:c001cd18
> r6:c7a7b3e0 r5:c0425220 r4:00000000
> > [<c01bf6a8>] (driver_attach+0x0/0x28) from
> [<c01bf2e4>]
> > (bus_add_driver+0xa8/0x218) [<c01bf23c>]
> (bus_add_driver+0x0/0x218) from
> > [<c01bfcac>] (driver_register+0x98/0x11c)
> [<c01bfc14>]
> > (driver_register+0x0/0x11c) from
> [<c01c0b78>]
> > (platform_driver_register+0x78/0x94)
> [<c01c0b00>]
> > (platform_driver_register+0x0/0x94) from
> [<c001cd2c>]
> > (ucb1400_ts_init+0x14/0x1c) [<c001cd18>]
> (ucb1400_ts_init+0x0/0x1c) from
> > [<c002d300>] (do_one_initcall+0x60/0x194)
> [<c002d2a0>]
> > (do_one_initcall+0x0/0x194) from
> [<c0008740>] (kernel_init+0x70/0xdc)
> > r8:00000000 r7:00000000 r6:00000000 r5:c0023f04
> r4:c00241c0
> > [<c00086d0>] (kernel_init+0x0/0xdc) from
> [<c004ad5c>] (do_exit+0x0/0x7a8)
> > r5:00000000 r4:00000000
> > Code: e59070cc e1a06000 ebffd34d e3500000 (e5870000)
> > ---[ end trace c943999c78a8047e ]---
> > Kernel panic - not syncing: Attempted to kill init!
> >
> >
> >
> > I have made a quick investigation and I have found
> that
> > dev->dev.platform_data in ucb1400_ts_probe
> function is NULL. So I think
> > that somewhere a memory alloc is missing. Should
> I allocate memory for
> > platform_data in the ucb1400_ts_probe ?
> >
> > Do you have any idea where is the bug ? Any idea is
> welcome !
> >
> > Thanks in advance
> >
> > Patrick
> >
>
> Why don't you use newer kernel? I use colibri/pxa320 with
> ucb1400 for which I
> recently sent three patches into linux-arm-kernel and
> linux-input to solve some
> issues (probably not/partly related).
>
> .28 doesn't have the capability to pass platform data
> through the ac97 bus, use
> mainline kernel (or even better ... go to git.kernel.org,
> search for ycmiao,
> checkout that and switch to 'devel' branch). Apply the
> following patches, make
> some sense of them and you should be fine. Some might be
> already applied.
> >
> >
> >
> > _______________________________________________
> > linux-arm mailing list
> > linux-arm at lists.infradead.org
> > http://lists.infradead.org/mailman/listinfo/linux-arm
> >
>
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