linux-toradex.git/drivers/extcon, branch v3.14.57 Linux kernel for Apalis and Colibri modules extcon: max14577: Properly handle regmap_irq_get_virq error 2014-07-01T03:11:52+00:00 Krzysztof Kozlowski k.kozlowski@samsung.com 2014-04-18T14:47:30+00:00 57a30a41fd5191c6eef3e868e2ae2d365c74b0f2 commit 369afd4ba22f5b8de0c9229b6e62b3f9e2207034 upstream. The regmap_irq_get_virq may return 0 or -EINVAL on error. Fail the probe in both situations. Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com> Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> 
commit 369afd4ba22f5b8de0c9229b6e62b3f9e2207034 upstream.

The regmap_irq_get_virq may return 0 or -EINVAL on error. Fail the probe
in both situations.

Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
extcon: max14577: Fix probe failure on successful work queue 2014-07-01T03:11:52+00:00 Krzysztof Kozlowski k.kozlowski@samsung.com 2014-04-09T09:56:09+00:00 b6687c4967b8520ef984bb63036422339266b3b9 commit 12adef5b49e98eb181b4163c36e2998169e1379b upstream. In probe the driver queued delayed work for cable detection and returned the result of queue_delayed_work() call. However the return value of queue_delayed_work() does not indicate an error and in normal condition it returns true which means successful work queue. This effectively resulted in probe failure: [ 2.088204] max14577-muic: probe of max77836-muic failed with error 1 Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com> Fixes: 962e56bfcf0b ("extcon: max14577: Add extcon-max14577 driver...") Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> 
commit 12adef5b49e98eb181b4163c36e2998169e1379b upstream.

In probe the driver queued delayed work for cable detection and
returned the result of queue_delayed_work() call. However the return
value of queue_delayed_work() does not indicate an error and in normal
condition it returns true which means successful work queue.
This effectively resulted in probe failure:
[    2.088204] max14577-muic: probe of max77836-muic failed with error 1

Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Fixes: 962e56bfcf0b ("extcon: max14577: Add extcon-max14577 driver...")
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
extcon: max77693: Fix two NULL pointer exceptions on missing pdata 2014-07-01T03:11:52+00:00 Krzysztof Kozlowski k.kozlowski@samsung.com 2014-04-09T13:20:12+00:00 ef06d6dbcf665f27f6fbbafcd66e8d06ddb5480e commit d5653f2b7304f05eeb45d84f123cf02f840b8537 upstream. Fix NULL pointer exceptions when platform data is not supplied. Trace of one exception: Unable to handle kernel NULL pointer dereference at virtual address 00000008 pgd = c0004000 [00000008] *pgd=00000000 Internal error: Oops: 5 [#1] PREEMPT SMP ARM Modules linked in: CPU: 2 PID: 1 Comm: swapper/0 Not tainted 3.14.0-12045-gead5dd4687a6-dirty #1628 task: eea80000 ti: eea88000 task.ti: eea88000 PC is at max77693_muic_probe+0x27c/0x528 LR is at regmap_write+0x50/0x60 pc : [<c041d1c8>] lr : [<c02eba60>] psr: 20000113 sp : eea89e38 ip : 00000000 fp : c098a834 r10: ee1a5a10 r9 : 00000005 r8 : c098a83c r7 : 0000000a r6 : c098a774 r5 : 00000005 r4 : eeb006d0 r3 : c0697bd8 r2 : 00000000 r1 : 00000001 r0 : 00000000 Flags: nzCv IRQs on FIQs on Mode SVC_32 ISA ARM Segment kernel Control: 10c5387d Table: 4000404a DAC: 00000015 Process swapper/0 (pid: 1, stack limit = 0xeea88240) Stack: (0xeea89e38 to 0xeea8a000) 9e20: c08499fc eeb006d0 9e40: 00000000 00000000 c0915f98 00000001 00000000 ee1a5a10 c098a730 c09a88b8 9e60: 00000000 c098a730 c0915f98 00000000 00000000 c02d6aa0 c02d6a88 ee1a5a10 9e80: c0a712c8 c02d54e4 00001204 c0628b00 ee1a5a10 c098a730 ee1a5a44 00000000 9ea0: eea88000 c02d57b4 00000000 c098a730 c02d5728 c02d3a24 ee813e5c eeb9d534 9ec0: c098a730 ee22f700 c097c720 c02d4b14 c08174ec c098a730 00000006 c098a730 9ee0: 00000006 c092fd30 c09b8500 c02d5df8 00000000 c093cbb8 00000006 c0008928 9f00: 000000c3 ef7fc785 00000000 ef7fc794 00000000 c08af968 00000072 eea89f30 9f20: ef7fc85e c065f198 000000c3 c003e87c 00000003 00000000 c092fd3c 00000000 9f40: c08af618 c0826d58 00000006 00000006 c0956f58 c093cbb8 00000006 c092fd30 9f60: c09b8500 000000c3 c092fd3c c08e8510 00000000 c08e8bb0 00000006 00000006 9f80: c08e8510 c0c0c0c0 00000000 c0628fac 00000000 00000000 00000000 00000000 9fa0: 00000000 c0628fb4 00000000 c000f038 00000000 00000000 00000000 00000000 9fc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 9fe0: 00000000 00000000 00000000 00000000 00000013 00000000 c0c0c0c0 c0c0c0c0 [<c041d1c8>] (max77693_muic_probe) from [<c02d6aa0>] (platform_drv_probe+0x18/0x48) [<c02d6aa0>] (platform_drv_probe) from [<c02d54e4>] (driver_probe_device+0x140/0x384) [<c02d54e4>] (driver_probe_device) from [<c02d57b4>] (__driver_attach+0x8c/0x90) [<c02d57b4>] (__driver_attach) from [<c02d3a24>] (bus_for_each_dev+0x54/0x88) [<c02d3a24>] (bus_for_each_dev) from [<c02d4b14>] (bus_add_driver+0xe8/0x204) [<c02d4b14>] (bus_add_driver) from [<c02d5df8>] (driver_register+0x78/0xf4) [<c02d5df8>] (driver_register) from [<c0008928>] (do_one_initcall+0xc4/0x174) [<c0008928>] (do_one_initcall) from [<c08e8bb0>] (kernel_init_freeable+0xfc/0x1c8) [<c08e8bb0>] (kernel_init_freeable) from [<c0628fb4>] (kernel_init+0x8/0xec) [<c0628fb4>] (kernel_init) from [<c000f038>] (ret_from_fork+0x14/0x3c) Code: caffffe7 e59d200c e3550001 b3a05001 (e5923008) ---[ end trace 85db969ce011bde7 ]--- Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com> Fixes: 190d7cfc8632 Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> 
commit d5653f2b7304f05eeb45d84f123cf02f840b8537 upstream.

Fix NULL pointer exceptions when platform data is not supplied.

Trace of one exception:
Unable to handle kernel NULL pointer dereference at virtual address 00000008
pgd = c0004000
[00000008] *pgd=00000000
Internal error: Oops: 5 [#1] PREEMPT SMP ARM
Modules linked in:
CPU: 2 PID: 1 Comm: swapper/0 Not tainted 3.14.0-12045-gead5dd4687a6-dirty #1628
task: eea80000 ti: eea88000 task.ti: eea88000
PC is at max77693_muic_probe+0x27c/0x528
LR is at regmap_write+0x50/0x60
pc : [<c041d1c8>]    lr : [<c02eba60>]    psr: 20000113
sp : eea89e38  ip : 00000000  fp : c098a834
r10: ee1a5a10  r9 : 00000005  r8 : c098a83c
r7 : 0000000a  r6 : c098a774  r5 : 00000005  r4 : eeb006d0
r3 : c0697bd8  r2 : 00000000  r1 : 00000001  r0 : 00000000
Flags: nzCv  IRQs on  FIQs on  Mode SVC_32  ISA ARM  Segment kernel
Control: 10c5387d  Table: 4000404a  DAC: 00000015
Process swapper/0 (pid: 1, stack limit = 0xeea88240)
Stack: (0xeea89e38 to 0xeea8a000)
9e20:                                                       c08499fc eeb006d0
9e40: 00000000 00000000 c0915f98 00000001 00000000 ee1a5a10 c098a730 c09a88b8
9e60: 00000000 c098a730 c0915f98 00000000 00000000 c02d6aa0 c02d6a88 ee1a5a10
9e80: c0a712c8 c02d54e4 00001204 c0628b00 ee1a5a10 c098a730 ee1a5a44 00000000
9ea0: eea88000 c02d57b4 00000000 c098a730 c02d5728 c02d3a24 ee813e5c eeb9d534
9ec0: c098a730 ee22f700 c097c720 c02d4b14 c08174ec c098a730 00000006 c098a730
9ee0: 00000006 c092fd30 c09b8500 c02d5df8 00000000 c093cbb8 00000006 c0008928
9f00: 000000c3 ef7fc785 00000000 ef7fc794 00000000 c08af968 00000072 eea89f30
9f20: ef7fc85e c065f198 000000c3 c003e87c 00000003 00000000 c092fd3c 00000000
9f40: c08af618 c0826d58 00000006 00000006 c0956f58 c093cbb8 00000006 c092fd30
9f60: c09b8500 000000c3 c092fd3c c08e8510 00000000 c08e8bb0 00000006 00000006
9f80: c08e8510 c0c0c0c0 00000000 c0628fac 00000000 00000000 00000000 00000000
9fa0: 00000000 c0628fb4 00000000 c000f038 00000000 00000000 00000000 00000000
9fc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
9fe0: 00000000 00000000 00000000 00000000 00000013 00000000 c0c0c0c0 c0c0c0c0
[<c041d1c8>] (max77693_muic_probe) from [<c02d6aa0>] (platform_drv_probe+0x18/0x48)
[<c02d6aa0>] (platform_drv_probe) from [<c02d54e4>] (driver_probe_device+0x140/0x384)
[<c02d54e4>] (driver_probe_device) from [<c02d57b4>] (__driver_attach+0x8c/0x90)
[<c02d57b4>] (__driver_attach) from [<c02d3a24>] (bus_for_each_dev+0x54/0x88)
[<c02d3a24>] (bus_for_each_dev) from [<c02d4b14>] (bus_add_driver+0xe8/0x204)
[<c02d4b14>] (bus_add_driver) from [<c02d5df8>] (driver_register+0x78/0xf4)
[<c02d5df8>] (driver_register) from [<c0008928>] (do_one_initcall+0xc4/0x174)
[<c0008928>] (do_one_initcall) from [<c08e8bb0>] (kernel_init_freeable+0xfc/0x1c8)
[<c08e8bb0>] (kernel_init_freeable) from [<c0628fb4>] (kernel_init+0x8/0xec)
[<c0628fb4>] (kernel_init) from [<c000f038>] (ret_from_fork+0x14/0x3c)
Code: caffffe7 e59d200c e3550001 b3a05001 (e5923008)
---[ end trace 85db969ce011bde7 ]---

Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Fixes: 190d7cfc8632
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
extcon: max8997: Fix NULL pointer exception on missing pdata 2014-07-01T03:11:52+00:00 Krzysztof Kozlowski k.kozlowski@samsung.com 2014-04-09T13:20:14+00:00 915772561648ae58c00b996187bbf7bc21717212 commit dfee4111febf3d9ef3a640b2cd6205c75f4e7e3d upstream. Fix NULL pointer exception when platform data is not supplied. The driver dereferenced pdata pointer where it could be NULL. Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com> Fixes: 810d601f07c Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> 
commit dfee4111febf3d9ef3a640b2cd6205c75f4e7e3d upstream.

Fix NULL pointer exception when platform data is not supplied. The
driver dereferenced pdata pointer where it could be NULL.

Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Fixes: 810d601f07c
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
ASoC: dapm: Add locking to snd_soc_dapm_xxxx_pin functions 2014-02-20T09:40:07+00:00 Charles Keepax ckeepax@opensource.wolfsonmicro.com 2014-02-18T15:22:14+00:00 113911006442a36c2b4669faf1699d9042ef80ab The snd_soc_dapm_xxxx_pin all require the dapm_mutex to be held when they are called as they edit the dirty list, however very few of the callers do so. This patch adds unlocked versions of all the functions replacing the existing implementations with one that holds the lock internally. We also fix up the places where the lock was actually held on the caller side. Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com> Signed-off-by: Mark Brown <broonie@linaro.org> Cc: stable@vger.kernel.org 
The snd_soc_dapm_xxxx_pin all require the dapm_mutex to be held when
they are called as they edit the dirty list, however very few of the
callers do so.

This patch adds unlocked versions of all the functions replacing the
existing implementations with one that holds the lock internally. We
also fix up the places where the lock was actually held on the caller
side.

Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
Cc: stable@vger.kernel.org
extcon: gpio: Add power resume support 2014-01-09T00:53:30+00:00 Rongjun Ying rongjun.ying@csr.com 2014-01-09T00:50:13+00:00 6544dfa5795060b01042fd62fd1a92e18c2fc485 When system on the suspend state, Some SoC can't get gpio interrupt. After system resume, need send extcon uevent to userspace. Signed-off-by: Rongjun Ying <rongjun.ying@csr.com> Reviewed-by: Barry Song <Baohua.Song@csr.com> Acked-by: Myungjoo Ham <myungjoo.ham@samsung.com> Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com> 
When system on the suspend state, Some SoC can't get gpio interrupt.
After system resume, need send extcon uevent to userspace.

Signed-off-by: Rongjun Ying <rongjun.ying@csr.com>
Reviewed-by: Barry Song <Baohua.Song@csr.com>
Acked-by: Myungjoo Ham <myungjoo.ham@samsung.com>
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
extcon: max14577: Add extcon-max14577 driver to support MUIC device 2014-01-07T02:54:29+00:00 Chanwoo Choi cw00.choi@samsung.com 2013-11-22T15:51:06+00:00 962e56bfcf0b055d00fc52948a327dead904caa3 This patch supports Maxim MAX14577 MUIC(Micro USB Interface Controller) device by using EXTCON subsystem to handle various external connectors. The max14577 device uses regmap method for i2c communication and supports irq domain. Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com> Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> 
This patch supports Maxim MAX14577 MUIC(Micro USB Interface Controller)
device by using EXTCON subsystem to handle various external connectors.
The max14577 device uses regmap method for i2c communication and
supports irq domain.

Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
extcon: arizona: Add support for headphone detection on wm5110 rev D 2014-01-07T02:54:28+00:00 Charles Keepax ckeepax@opensource.wolfsonmicro.com 2013-11-14T16:18:25+00:00 77438610ffd93462348346430d17470cd3ce7bbc wm5110 rev D is the first chip to use headphone detection IP 2, specify such and make a small correction as the impedance value is actually read in 0.5 ohm increments now. Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com> Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com> 
wm5110 rev D is the first chip to use headphone detection IP 2, specify
such and make a small correction as the impedance value is actually read
in 0.5 ohm increments now.

Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
extcon: arizona: No need to switch back down HPDET ranges 2014-01-07T02:54:28+00:00 Charles Keepax ckeepax@opensource.wolfsonmicro.com 2013-11-14T16:18:24+00:00 9141461d81717ef94b7d38a4b3581114ac1307db No point in revisiting ranges the detection will be no more accurate the second time simply report that the resistance is right on the range boundry. Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com> Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com> 
No point in revisiting ranges the detection will be no more accurate
the second time simply report that the resistance is right on the
range boundry.

Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
extcon: arizona: Fix race with microphone detection and removal 2014-01-07T02:54:28+00:00 Charles Keepax ckeepax@opensource.wolfsonmicro.com 2013-11-14T16:18:23+00:00 31a847e6e1ed4db5002a4af191988aa85008c407 The microphone detection code is run as delayed work to provide additional debounce, it is possible that the jack could have been removed by the time we process the microphone detection. Turn this case into a no op. Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com> Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com> 
The microphone detection code is run as delayed work to provide
additional debounce, it is possible that the jack could have been
removed by the time we process the microphone detection. Turn this
case into a no op.

Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>