kernel.git/drivers/mfd/twl-core.c, branch linux-3.3.y

ARM: omap: fix broken twl-core dependencies and ifdefs

2012-02-09T17:56:53Z

In commit aeb5032b3f, a dependency on IRQ_DOMAIN was added, which causes regressions on previously working setups: a previously working non-DT kernel configuration now loses its PMIC support. The lack of PMIC support in turn causes the loss of other functionality the kernel had. This dependency was added because the driver now registers its interrupts with the IRQ domain code, presumably to prevent a build error. The result is that OMAP3 oopses in the vp.c code (fixed by a previous commit) due to the lack of PMIC support. However, even with IRQ_DOMAIN enabled, the driver oopses: Unable to handle kernel NULL pointer dereference at virtual address 00000000 pgd = c0004000 [00000000] *pgd=00000000 Internal error: Oops: 5 [#1] SMP Modules linked in: CPU: 1 Not tainted (3.3.0-rc2+ #271) PC is at irq_domain_add+0x1c/0x134 LR is at twl_probe+0xd0/0x370 pc : [] lr : [] psr: 00000113 sp : df843c48 ip : df843c68 fp : df843c64 r10: c02b93e4 r9 : 00000000 r8 : c029b9dc r7 : df9d8a00 r6 : c03bef90 r5 : 00000000 r4 : c03f5240 r3 : 00000000 r2 : c03f5240 r1 : 00000015 r0 : c03f5240 Flags: nzcv IRQs on FIQs on Mode SVC_32 ISA ARM Segment kernel Control: 10c5387d Table: 8000404a DAC: 00000015 Process swapper/0 (pid: 1, stack limit = 0xdf8422f0) Stack: (0xdf843c48 to 0xdf844000) 3c40: 00000014 00000170 00000014 c03bef90 df843c9c df843c68 3c60: c029baac c007bac0 00000000 df9d8a20 00000001 c03cd238 c02b93e4 df9d8a20 3c80: df9d8a04 df9d8a00 c029b9dc df8cae08 df843cc4 df843ca0 c01eee70 c029b9e8 ... Backtrace: [] (irq_domain_add+0x0/0x134) from [] (twl_probe+0xd0/0x370) r6:c03bef90 r5:00000014 r4:00000170 [] (twl_probe+0x0/0x370) from [] (i2c_device_probe+0xb0/0xe4) [] (i2c_device_probe+0x0/0xe4) from [] (really_probe+0xa0/0x178) r8:df8f0070 r7:c03cd238 r6:df9d8a20 r5:df9d8a20 r4:df9d8a20 [] (really_probe+0x0/0x178) from [] (driver_probe_device+0x50/0x68) r7:df843d18 r6:df9d8a20 r5:c03cd238 r4:df9d8a20 [] (driver_probe_device+0x0/0x68) from [] (__device_attach+0x44/0x48) r5:df9d8a20 r4:c03cd238 [] (__device_attach+0x0/0x48) from [] (bus_for_each_drv+0x58/0x98) r5:c01d2104 r4:00000000 [] (bus_for_each_drv+0x0/0x98) from [] (device_attach+0x80/0xac) r7:df9d8a28 r6:df9d8a54 r5:c03cd978 r4:df9d8a20 [] (device_attach+0x0/0xac) from [] (bus_probe_device+0x34/0xa4) r6:df9d8a20 r5:c03cd978 r4:df9d8a20 [] (bus_probe_device+0x0/0xa4) from [] (device_add+0x2a0/0x420) r6:00000000 r5:df9d8a20 r4:df9d8a20 [] (device_add+0x0/0x420) from [] (device_register+0x20/0x24) r8:df9d8a00 r7:df9d8a04 r6:df8f0048 r5:df9d8a00 r4:df9d8a20 [] (device_register+0x0/0x24) from [] (i2c_new_device+0x118/0x180) r4:df9d8a20 [] (i2c_new_device+0x0/0x180) from [] (i2c_register_adapter+0x140/0x204) r8:c03cd970 r7:00000000 r6:df8f0070 r5:df8a6300 r4:df8f0048 [] (i2c_register_adapter+0x0/0x204) from [] (i2c_add_numbered_adapter+0xb4/0xcc) r8:df8a4c54 r7:df8cae00 r6:df843e2c r5:df8f0048 r4:00000000 [] (i2c_add_numbered_adapter+0x0/0xcc) from [] (omap_i2c_probe+0x2f8/0x3b4) r6:00000000 r5:df8f0000 r4:df8f0070 [] (omap_i2c_probe+0x0/0x3b4) from [] (platform_drv_probe+0x20/0x24) [] (platform_drv_probe+0x0/0x24) from [] (really_probe+0xa0/0x178) [] (really_probe+0x0/0x178) from [] (driver_probe_device+0x50/0x68) r7:df843ef0 r6:c03cdb2c r5:c03cdb2c r4:df8cae08 [] (driver_probe_device+0x0/0x68) from [] (__driver_attach+0x6c/0x90) r5:df8cae3c r4:df8cae08 [] (__driver_attach+0x0/0x90) from [] (bus_for_each_dev+0x58/0x98) r6:c03cdb2c r5:c01d2074 r4:00000000 [] (bus_for_each_dev+0x0/0x98) from [] (driver_attach+0x20/0x28) r7:df880b80 r6:c03cdb2c r5:c03cdb2c r4:c0394f28 [] (driver_attach+0x0/0x28) from [] (bus_add_driver+0xb4/0x230) [] (bus_add_driver+0x0/0x230) from [] (driver_register+0xc8/0x154) [] (driver_register+0x0/0x154) from [] (platform_driver_register+0x4c/0x60) r8:00000000 r7:00000013 r6:c00384c8 r5:c0395180 r4:c0394f28 [] (platform_driver_register+0x0/0x60) from [] (omap_i2c_init_driver+0x14/0x1c) [] (omap_i2c_init_driver+0x0/0x1c) from [] (do_one_initcall+0x9c/0x164) [] (do_one_initcall+0x0/0x164) from [] (kernel_init+0x90/0x138) [] (kernel_init+0x0/0x138) from [] (do_exit+0x0/0x2ec) r5:c036c264 r4:00000000 <0>Code: e24dd004 e5903014 e1a04000 e5905010 (e5933000) <4>---[ end trace 1b75b31a2719ed1c ]--- This happens because we try to register an IRQ domain with a NULL ops structure, and the first thing irq_domain_add() does is try to dereference this ops structure. So, fix the problem by getting rid of the incorrect OF_IRQ ifdef and wrapping the IRQ domain bits of the driver with an IRQ_DOMAIN ifdef instead. Acked-by: Tony Lindgren Signed-off-by: Russell King

mfd: twl-core: Add initial DT support for twl4030/twl6030

2012-01-08T23:37:40Z

Add initial device-tree support for twl familly chips. The current version is missing the regulator entries due to the lack of DT regulator bindings for the moment. Only the simple sub-modules that do not depend on platform_data information can be initialized properly. Add irqdomain support. Add documentation for the Texas Instruments TWL Integrated Chip. Signed-off-by: Benoit Cousson Cc: Balaji T K Cc: Graeme Gregory Signed-off-by: Samuel Ortiz Acked-by: Rob Herring [grant.likely@secretlab.ca: Fix IRQ_DOMAIN dependency in kconfig] Cc: Grant Likely

mfd: Fix twl-core oops while calling twl_i2c_* for unbound driver

2011-12-20T17:53:25Z

Check inuse variable before trying to access twl_map to prevent dereferencing of uninitialized variable. Signed-off-by: Ilya Yanok Cc: stable@kernel.org Signed-off-by: Samuel Ortiz

Merge branch 'modsplit-Oct31_2011' of git://git.kernel.org/pub/scm/linux/kernel/git/paulg/linux

2011-11-07T03:44:47Z

* 'modsplit-Oct31_2011' of git://git.kernel.org/pub/scm/linux/kernel/git/paulg/linux: (230 commits) Revert "tracing: Include module.h in define_trace.h" irq: don't put module.h into irq.h for tracking irqgen modules. bluetooth: macroize two small inlines to avoid module.h ip_vs.h: fix implicit use of module_get/module_put from module.h nf_conntrack.h: fix up fallout from implicit moduleparam.h presence include: replace linux/module.h with "struct module" wherever possible include: convert various register fcns to macros to avoid include chaining crypto.h: remove unused crypto_tfm_alg_modname() inline uwb.h: fix implicit use of asm/page.h for PAGE_SIZE pm_runtime.h: explicitly requires notifier.h linux/dmaengine.h: fix implicit use of bitmap.h and asm/page.h miscdevice.h: fix up implicit use of lists and types stop_machine.h: fix implicit use of smp.h for smp_processor_id of: fix implicit use of errno.h in include/linux/of.h of_platform.h: delete needless include acpi: remove module.h include from platform/aclinux.h miscdevice.h: delete unnecessary inclusion of module.h device_cgroup.h: delete needless include net: sch_generic remove redundant use of net: inet_timewait_sock doesnt need ... Fix up trivial conflicts (other header files, and removal of the ab3550 mfd driver) in - drivers/media/dvb/frontends/dibx000_common.c - drivers/media/video/{mt9m111.c,ov6650.c} - drivers/mfd/ab3550-core.c - include/linux/dmaengine.h

mfd: Add module.h to the implicit drivers/mfd users

2011-10-31T23:32:04Z

With the pending module.h cleanup, these files will fail to compile, unless they explicitly call out the include of this file. [omap-usb-host addition courtesy of Anand Gadiyar ] Signed-off-by: Paul Gortmaker

mfd: Fix twl4030 dependencies for audio codec

2011-10-24T12:09:13Z

The codec for Devkit8000 (TWL4030) was not detected except when build with CONFIG_SND_SOC_ALL_CODECS. twl-core.c still uses the CONFIG_TWL4030_CODEC for twl_has_codec(). In commit 57fe7251f5bfc4332f24479376de48a1e8ca6211 the CONFIG_TWL4030_CODEC was renamed into CONFIG_MFD_TWL4030_AUDIO, thatswhy the codec was not detected. This patch renames the CONFIG_ TWL4030_CODEC into CONFIG_MFD_TWL4030_AUDIO in twl-core.c. Signed-off-by: Thomas Weber Acked-by: Peter Ujfalusi Signed-off-by: Samuel Ortiz

mfd: Add tps65921 support from twl-core

2011-07-31T21:28:24Z

Very similar to TPS65920 List of differences: http://www.ti.com/litv/pdf/swcu066b Signed-off-by: Oleg Drokin Signed-off-by: Samuel Ortiz

mfd: twl6040: Add initial support

2011-07-04T16:34:37Z

TWL6040 IC provides analog high-end audio codec functions for handset applications. It contains several audio analog inputs and outputs as well as vibrator support. It's connected to the host processor via PDM interface for audio data communication. The audio modules are controlled by internal registers that can be accessed by I2C and PDM interface. TWL6040 MFD will be registered as a child of TWL-CORE, and will have two children of its own: twl6040-codec and twl6040-vibra. This driver is based on TWL4030 and WM8350 MFD drivers. Signed-off-by: Misael Lopez Cruz Signed-off-by: Peter Ujfalusi Acked-by: Samuel Ortiz

MFD: twl4030-audio: Rename platform data

2011-07-04T15:44:02Z

Allign the platform data names for twl4030 audio submodule: twl4030_audio_data: for the core MFD driver twl4030_codec_data: for ASoC codec driver twl4030_vibra_data: for the input/ForceFeedback driver To avoid breakage, change all depending drivers, files to use the new types. Signed-off-by: Peter Ujfalusi Acked-by: Samuel Ortiz

mfd: Add phoenix lite (twl6025) support to twl6030

2011-05-26T17:45:39Z

Phoenix Lite is based on the twl6030 family of PMICs. It has mostly the same feature set of twl6030 but with small changes. The codec block has also been removed. It also has a new charger block and new features in its ADC block. VUSB handling also differs. Signed-off-by: Graeme Gregory Reviewed-by: Mark Brown Signed-off-by: Samuel Ortiz