[PATCH 2/2] dmaengine: OMAP: Register SDMA controller with Device Tree DMA driver

Tony Lindgren
2013-02-08T01:44:02Z

* Jon Hunter <jon-hunter@ti.com> [130207 16:55]:
>
> Ugh, looks like linux-next is broken for omap2+ boards at the moment
> and is panic'ing in the twl i2c code ... some else to look into ...
>
> Peter have you seen this on linux-next? I am seeing this on omap2-4 boards.

Does not happen with arm-soc/for-next, probably related to the
drivers/mfd/*twl* changes?

Tony

> [ 2.286132] Unable to handle kernel NULL pointer dereference at virtual address 00000000
> [ 2.294738] pgd = c0004000
> [ 2.297576] [00000000] *pgd=00000000
> [ 2.301361] Internal error: Oops: 5 [#1] SMP ARM
> [ 2.306243] Modules linked in:
> [ 2.309448] CPU: 0 Not tainted (3.8.0-rc6-next-20130207-00016-g735c237 #35)
> [ 2.317169] PC is at twl_i2c_read+0x3c/0xec
> [ 2.321563] LR is at twl_i2c_read+0x1c/0xec
> [ 2.325988] pc : [<c0333950>] lr : [<c0333930>] psr: 80000153
> [ 2.325988] sp : c702fed0 ip : 00000000 fp : 00000000
> [ 2.338043] r10: c702e000 r9 : c06e84e8 r8 : c06e51c8
> [ 2.343536] r7 : 00000001 r6 : 00000006 r5 : c702fef6 r4 : 00000004
> [ 2.350402] r3 : c129508c r2 : 00000006 r1 : c702fef6 r0 : 0000000e
> [ 2.357269] Flags: Nzcv IRQs on FIQs off Mode SVC_32 ISA ARM Segment kernel
> [ 2.365051] Control: 10c5387d Table: 80004019 DAC: 00000017
> [ 2.371093] Process swapper/0 (pid: 1, stack limit = 0xc702e240)
> [ 2.377410] Stack: (0xc702fed0 to 0xc7030000)
> [ 2.382019] fec0: c0d42180 c0d429d0 c70a7640 c07354c4
> [ 2.390624] fee0: 00000001 c0719798 c0d42180 c06f2cc0 c04e76cc c06ee1ac 00000000 c07354c4
> [ 2.399230] ff00: 00000007 c06f2d64 00000017 c06fb308 00000000 c06f07a4 c0cb8580 c06edee0
> [ 2.407836] ff20: c06eded4 c06e8504 c0d42180 c0008768 0000009e c00611b4 00000001 00000000
> [ 2.416442] ff40: c061994c c06b7548 00000007 00000007 00000000 c07354c4 00000007 c0719798
> [ 2.425048] ff60: c0d42180 c06e51c8 c07197a0 0000009e 00000000 c06e590c 00000007 00000007
> [ 2.433654] ff80: c06e51c8 00000000 00000000 c04d26ec 00000000 00000000 00000000 00000000
> [ 2.442260] ffa0: 00000000 c04d26f4 00000000 c00137b0 00000000 00000000 00000000 00000000
> [ 2.450866] ffc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
> [ 2.459472] ffe0: 00000000 00000000 00000000 00000000 00000013 00000000 80fb6c10 71bbcd20
> [ 2.468078] [<c0333950>] (twl_i2c_read+0x3c/0xec) from [<c06f2cc0>] (omap3_twl_set_sr_bit+0x3c/0xb4)
> [ 2.477722] [<c06f2cc0>] (omap3_twl_set_sr_bit+0x3c/0xb4) from [<c06f2d64>] (omap3_twl_init+0x2c/0x70)
> [ 2.487518] [<c06f2d64>] (omap3_twl_init+0x2c/0x70) from [<c06fb308>] (omap_pmic_late_init+0x18/0x24)
> [ 2.497222] [<c06fb308>] (omap_pmic_late_init+0x18/0x24) from [<c06f07a4>] (omap2_common_pm_late_init+0x18/0xd0)
> [ 2.507934] [<c06f07a4>] (omap2_common_pm_late_init+0x18/0xd0) from [<c06edee0>] (omap3_init_late+0xc/0x18)
> [ 2.518188] [<c06edee0>] (omap3_init_late+0xc/0x18) from [<c06e8504>] (init_machine_late+0x1c/0x28)
> [ 2.527740] [<c06e8504>] (init_machine_late+0x1c/0x28) from [<c0008768>] (do_one_initcall+0x100/0x16c)
> [ 2.537536] [<c0008768>] (do_one_initcall+0x100/0x16c) from [<c06e590c>] (kernel_init_freeable+0xfc/0x1c8)
> [ 2.547698] [<c06e590c>] (kernel_init_freeable+0xfc/0x1c8) from [<c04d26f4>] (kernel_init+0x8/0xe4)
> [ 2.557250] [<c04d26f4>] (kernel_init+0x8/0xe4) from [<c00137b0>] (ret_from_fork+0x14/0x24)
>
> Cheers
> Jon