litmus-rt-imx6.git/drivers/input, branch master LITMUS^RT and MC^2 V1 support for the i.MX6 processor family. ENGR00318936-2 input: keyboard: imx: remove usless release interrupt enabled code 2014-06-19T04:56:10+00:00 Robin Gong b38343@freescale.com 2014-06-18T06:14:09+00:00 560a64749d1dd0ff2352f625ca12eecea17064f4 Remove useless code for release interrupt enabled, because we check status by timer rather than release interrupt. Remove the code which may disable depress interrupt. Also make sure enable depress interrupt in suspend function. Signed-off-by: Robin Gong <b38343@freescale.com> 
Remove useless code for release interrupt enabled, because we check status by
timer rather than release interrupt. Remove the code which may disable depress
interrupt. Also make sure enable depress interrupt in suspend function.

Signed-off-by: Robin Gong <b38343@freescale.com>
ENGR00318936-1 input: keyboard: imx: add pm_stay_awake and pm_relax 2014-06-19T04:56:09+00:00 Robin Gong b38343@freescale.com 2014-06-10T03:56:49+00:00 93e23abbe445dbd28b76080ef9cedd3de9b04844 There is a small window after system suspend but timer scan function didn't finish timely, in this case, system enter suspend without kpp interrupt enabled and failed to resume back if key depressed.We add pm_stay_awake and pm_relax to make sure system suspend flow abort in this case. Signed-off-by: Robin Gong <b38343@freescale.com> 
There is a small window after system suspend but timer scan function
didn't finish timely, in this case,  system enter suspend without kpp
interrupt enabled and failed to resume back if key depressed.We add
pm_stay_awake and pm_relax to make sure system suspend flow abort in
this case.

Signed-off-by: Robin Gong <b38343@freescale.com>
ENGR00307017: input: keyboard: snvs_pwrkey: fix system crash sometimes during boot 2014-04-16T13:58:16+00:00 Robin Gong b38343@freescale.com 2014-04-03T09:10:24+00:00 4bde963732964c65b2e03deac1657f9963eb2da6 If there is one ONOFF power key interrupt pending before RESET key pushed. system will crash as below in the next boot cycle, because the pending interrupt will be serviced after devm_request_irq while the driver probe has not finished and the drvdata is NULL. So clear the meaningless irq status in the probe. ousedev: PS/2 mouse device common for all mice Unable to handle kernel NULL pointer dereference at virtual address 00000000 pgd = 80004000 [00000000] *pgd=00000000 Internal error: Oops: 5 [#1] PREEMPT SMP ARM Modules linked in: CPU: 0 PID: 1 Comm: swapper/0 Not tainted 3.10.17-01631-g6b7b681-dirty #343 task: a806c000 ti: a806e000 task.ti: a806e000 PC is at imx_snvs_pwrkey_interrupt+0x10/0x4c LR is at imx_snvs_pwrkey_interrupt+0xc/0x4c pc : [<803f0594>] lr : [<803f0590>] psr: a0000193 sp : a806fd10 ip : fffffffa fp : 00000001 r10: 80cb630e r9 : a8006b40 r8 : 00000024 r7 : 00000000 r6 : 00000000 r5 : a8006b90 r4 : a83b5340 r3 : 803f0584 r2 : a806fd48 r1 : a80ad000 r0 : 00000000 Flags: NzCv IRQs off FIQs on Mode SVC_32 ISA ARM Segment kernel Control: 10c53c7d Table: 8000404a DAC: 00000015 Process swapper/0 (pid: 1, stack limit = 0xa806e238) Stack: (0xa806fd10 to 0xa8070000) fd00: a83b5340 a8006b90 00000000 8007363c fd20: 80cb6000 80090604 00000001 a8006b40 a8006b90 a83b5340 c0802100 60000113 fd40: a8006b70 00000000 00000000 800737a0 a8006b40 a8006b90 00000000 8007646c fd60: 800763e8 00000024 00000024 80072e04 80c5fef0 8000e948 c080210c 80c6a904 fd80: a806fda0 80008558 80074b94 8063c75c 60000113 ffffffff a806fdd4 8000dc80 fda0: a8006b90 60000113 a806fdb8 00000007 a8006b40 a83b5340 a8006b90 00000024 fdc0: 60000113 a8006b70 00000000 00000000 000000ff a806fde8 80074b94 8063c75c fde0: 60000113 ffffffff 00000000 80074b94 80c6f688 020cc000 00000000 00000001 fe00: a83b5340 a8006b40 803f0584 00000004 00000024 a80ad000 00000000 80074f50 fe20: a83b5310 a80ad000 00000024 803f0584 00000000 a80ad010 80c53804 80076a40 fe40: a80ab880 a80ad000 a836e990 a836e990 a80ad010 8152696c a80ad000 80cb6480 fe60: 80c44f90 803f0774 00000004 a80ab880 a80ad000 00000000 80d0ba0c a80ad010 fe80: 00000000 80c9a1f0 80cb6480 803099c0 803099a8 8030876c 00000000 a80ad010 fea0: 80c9a1f0 a80ad044 00000000 80308958 00000000 80c9a1f0 803088cc 80306c88 fec0: a804055c a80ac1b4 80c9a1f0 a836e680 80c89a30 80307f30 80b82af4 80c9a1f0 fee0: 00000006 80c9a1f0 00000006 80cb6480 80cb6480 80308f34 80c5e688 00000006 ff00: 80cb6480 80cb6480 80cb6480 80008704 000000f2 80041d60 80c537dc a806e010 ff20: 80b81e6c 80be5e54 00000006 00000006 800415cc 80041624 00000000 80c5e688 ff40: 00000006 80cb6480 80cb6480 80c194dc 000000f2 80c53804 80c537f8 80c19be0 ff60: 00000006 00000006 80c194dc 900ff07c ab86ff79 08012008 a806ff9c 00000000 ff80: 80631050 00000000 00000000 00000000 00000000 00000000 00000000 80631058 ffa0: 00000000 00000000 80631050 8000e118 00000000 00000000 00000000 00000000 ffc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 ffe0: 00000000 00000000 00000000 00000000 00000013 00000000 fdfe5bba dbfe26ba [<803f0594>] (imx_snvs_pwrkey_interrupt+0x10/0x4c) from [<8007363c>] (handle_irq_event_percpu+0x54/0x17c) [<8007363c>] (handle_irq_event_percpu+0x54/0x17c) from [<800737a0>] (handle_irq_event+0x3c/0x5c) [<800737a0>] (handle_irq_event+0x3c/0x5c) from [<8007646c>] (handle_fasteoi_irq+0x84/0x14c) [<8007646c>] (handle_fasteoi_irq+0x84/0x14c) from [<80072e04>] (generic_handle_irq+0x2c/0x3c) [<80072e04>] (generic_handle_irq+0x2c/0x3c) from [<8000e948>] (handle_IRQ+0x40/0x90) [<8000e948>] (handle_IRQ+0x40/0x90) from [<80008558>] (gic_handle_irq+0x2c/0x5c) [<80008558>] (gic_handle_irq+0x2c/0x5c) from [<8000dc80>] (__irq_svc+0x40/0x70) Exception stack(0xa806fda0 to 0xa806fde8) fda0: a8006b90 60000113 a806fdb8 00000007 a8006b40 a83b5340 a8006b90 00000024 fdc0: 60000113 a8006b70 00000000 00000000 000000ff a806fde8 80074b94 8063c75c fde0: 60000113 ffffffff [<8000dc80>] (__irq_svc+0x40/0x70) from [<8063c75c>] (_raw_spin_unlock_irqrestore+0x20/0x48) [<8063c75c>] (_raw_spin_unlock_irqrestore+0x20/0x48) from [<80074b94>] (__setup_irq+0x1b4/0x440) [<80074b94>] (__setup_irq+0x1b4/0x440) from [<80074f50>] (request_threaded_irq+0xa8/0x128) [<80074f50>] (request_threaded_irq+0xa8/0x128) from [<80076a40>] (devm_request_threaded_irq+0x58/0x9c) [<80076a40>] (devm_request_threaded_irq+0x58/0x9c) from [<803f0774>] (imx_snvs_pwrkey_probe+0x118/0x250) [<803f0774>] (imx_snvs_pwrkey_probe+0x118/0x250) from [<803099c0>] (platform_drv_probe+0x18/0x1c) [<803099c0>] (platform_drv_probe+0x18/0x1c) from [<8030876c>] (driver_probe_device+0x10c/0x228) [<8030876c>] (driver_probe_device+0x10c/0x228) from [<80308958>] (__driver_attach+0x8c/0x90) [<80308958>] (__driver_attach+0x8c/0x90) from [<80306c88>] (bus_for_each_dev+0x60/0x94) [<80306c88>] (bus_for_each_dev+0x60/0x94) from [<80307f30>] (bus_add_driver+0x1c0/0x24c) [<80307f30>] (bus_add_driver+0x1c0/0x24c) from [<80308f34>] (driver_register+0x78/0x140) [<80308f34>] (driver_register+0x78/0x140) from [<80008704>] (do_one_initcall+0x108/0x158) [<80008704>] (do_one_initcall+0x108/0x158) from [<80c19be0>] (kernel_init_freeable+0x138/0x1d8) [<80c19be0>] (kernel_init_freeable+0x138/0x1d8) from [<80631058>] (kernel_init+0x8/0x158) [<80631058>] (kernel_init+0x8/0x158) from [<8000e118>] (ret_from_fork+0x14/0x3c) Code: e92d4070 e2810010 ebfc5ebe e1a06000 (e5904000) ---[ end trace bd5e3234432334c1 ]--- Kernel panic - not syncing: Fatal exception in interrupt Signed-off-by: Robin Gong <b38343@freescale.com> 
If there is one ONOFF power key interrupt pending before RESET key pushed. system will
crash as below in the next boot cycle, because the pending interrupt will be serviced
after devm_request_irq while the driver probe has not finished and the drvdata is NULL.
So clear the meaningless irq status in the probe.

ousedev: PS/2 mouse device common for all mice
Unable to handle kernel NULL pointer dereference at virtual address 00000000
pgd = 80004000
[00000000] *pgd=00000000
Internal error: Oops: 5 [#1] PREEMPT SMP ARM
Modules linked in:
CPU: 0 PID: 1 Comm: swapper/0 Not tainted 3.10.17-01631-g6b7b681-dirty #343
task: a806c000 ti: a806e000 task.ti: a806e000
PC is at imx_snvs_pwrkey_interrupt+0x10/0x4c
LR is at imx_snvs_pwrkey_interrupt+0xc/0x4c
pc : [<803f0594>]    lr : [<803f0590>]    psr: a0000193
sp : a806fd10  ip : fffffffa  fp : 00000001
r10: 80cb630e  r9 : a8006b40  r8 : 00000024
r7 : 00000000  r6 : 00000000  r5 : a8006b90  r4 : a83b5340
r3 : 803f0584  r2 : a806fd48  r1 : a80ad000  r0 : 00000000
Flags: NzCv  IRQs off  FIQs on  Mode SVC_32  ISA ARM  Segment kernel
Control: 10c53c7d  Table: 8000404a  DAC: 00000015
Process swapper/0 (pid: 1, stack limit = 0xa806e238)
Stack: (0xa806fd10 to 0xa8070000)
fd00:                                     a83b5340 a8006b90 00000000 8007363c
fd20: 80cb6000 80090604 00000001 a8006b40 a8006b90 a83b5340 c0802100 60000113
fd40: a8006b70 00000000 00000000 800737a0 a8006b40 a8006b90 00000000 8007646c
fd60: 800763e8 00000024 00000024 80072e04 80c5fef0 8000e948 c080210c 80c6a904
fd80: a806fda0 80008558 80074b94 8063c75c 60000113 ffffffff a806fdd4 8000dc80
fda0: a8006b90 60000113 a806fdb8 00000007 a8006b40 a83b5340 a8006b90 00000024
fdc0: 60000113 a8006b70 00000000 00000000 000000ff a806fde8 80074b94 8063c75c
fde0: 60000113 ffffffff 00000000 80074b94 80c6f688 020cc000 00000000 00000001
fe00: a83b5340 a8006b40 803f0584 00000004 00000024 a80ad000 00000000 80074f50
fe20: a83b5310 a80ad000 00000024 803f0584 00000000 a80ad010 80c53804 80076a40
fe40: a80ab880 a80ad000 a836e990 a836e990 a80ad010 8152696c a80ad000 80cb6480
fe60: 80c44f90 803f0774 00000004 a80ab880 a80ad000 00000000 80d0ba0c a80ad010
fe80: 00000000 80c9a1f0 80cb6480 803099c0 803099a8 8030876c 00000000 a80ad010
fea0: 80c9a1f0 a80ad044 00000000 80308958 00000000 80c9a1f0 803088cc 80306c88
fec0: a804055c a80ac1b4 80c9a1f0 a836e680 80c89a30 80307f30 80b82af4 80c9a1f0
fee0: 00000006 80c9a1f0 00000006 80cb6480 80cb6480 80308f34 80c5e688 00000006
ff00: 80cb6480 80cb6480 80cb6480 80008704 000000f2 80041d60 80c537dc a806e010
ff20: 80b81e6c 80be5e54 00000006 00000006 800415cc 80041624 00000000 80c5e688
ff40: 00000006 80cb6480 80cb6480 80c194dc 000000f2 80c53804 80c537f8 80c19be0
ff60: 00000006 00000006 80c194dc 900ff07c ab86ff79 08012008 a806ff9c 00000000
ff80: 80631050 00000000 00000000 00000000 00000000 00000000 00000000 80631058
ffa0: 00000000 00000000 80631050 8000e118 00000000 00000000 00000000 00000000
ffc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
ffe0: 00000000 00000000 00000000 00000000 00000013 00000000 fdfe5bba dbfe26ba
[<803f0594>] (imx_snvs_pwrkey_interrupt+0x10/0x4c) from [<8007363c>] (handle_irq_event_percpu+0x54/0x17c)
[<8007363c>] (handle_irq_event_percpu+0x54/0x17c) from [<800737a0>] (handle_irq_event+0x3c/0x5c)
[<800737a0>] (handle_irq_event+0x3c/0x5c) from [<8007646c>] (handle_fasteoi_irq+0x84/0x14c)
[<8007646c>] (handle_fasteoi_irq+0x84/0x14c) from [<80072e04>] (generic_handle_irq+0x2c/0x3c)
[<80072e04>] (generic_handle_irq+0x2c/0x3c) from [<8000e948>] (handle_IRQ+0x40/0x90)
[<8000e948>] (handle_IRQ+0x40/0x90) from [<80008558>] (gic_handle_irq+0x2c/0x5c)
[<80008558>] (gic_handle_irq+0x2c/0x5c) from [<8000dc80>] (__irq_svc+0x40/0x70)
Exception stack(0xa806fda0 to 0xa806fde8)
fda0: a8006b90 60000113 a806fdb8 00000007 a8006b40 a83b5340 a8006b90 00000024
fdc0: 60000113 a8006b70 00000000 00000000 000000ff a806fde8 80074b94 8063c75c
fde0: 60000113 ffffffff
[<8000dc80>] (__irq_svc+0x40/0x70) from [<8063c75c>] (_raw_spin_unlock_irqrestore+0x20/0x48)
[<8063c75c>] (_raw_spin_unlock_irqrestore+0x20/0x48) from [<80074b94>] (__setup_irq+0x1b4/0x440)
[<80074b94>] (__setup_irq+0x1b4/0x440) from [<80074f50>] (request_threaded_irq+0xa8/0x128)
[<80074f50>] (request_threaded_irq+0xa8/0x128) from [<80076a40>] (devm_request_threaded_irq+0x58/0x9c)
[<80076a40>] (devm_request_threaded_irq+0x58/0x9c) from [<803f0774>] (imx_snvs_pwrkey_probe+0x118/0x250)
[<803f0774>] (imx_snvs_pwrkey_probe+0x118/0x250) from [<803099c0>] (platform_drv_probe+0x18/0x1c)
[<803099c0>] (platform_drv_probe+0x18/0x1c) from [<8030876c>] (driver_probe_device+0x10c/0x228)
[<8030876c>] (driver_probe_device+0x10c/0x228) from [<80308958>] (__driver_attach+0x8c/0x90)
[<80308958>] (__driver_attach+0x8c/0x90) from [<80306c88>] (bus_for_each_dev+0x60/0x94)
[<80306c88>] (bus_for_each_dev+0x60/0x94) from [<80307f30>] (bus_add_driver+0x1c0/0x24c)
[<80307f30>] (bus_add_driver+0x1c0/0x24c) from [<80308f34>] (driver_register+0x78/0x140)
[<80308f34>] (driver_register+0x78/0x140) from [<80008704>] (do_one_initcall+0x108/0x158)
[<80008704>] (do_one_initcall+0x108/0x158) from [<80c19be0>] (kernel_init_freeable+0x138/0x1d8)
[<80c19be0>] (kernel_init_freeable+0x138/0x1d8) from [<80631058>] (kernel_init+0x8/0x158)
[<80631058>] (kernel_init+0x8/0x158) from [<8000e118>] (ret_from_fork+0x14/0x3c)
Code: e92d4070 e2810010 ebfc5ebe e1a06000 (e5904000)
---[ end trace bd5e3234432334c1 ]---
Kernel panic - not syncing: Fatal exception in interrupt

Signed-off-by: Robin Gong <b38343@freescale.com>
ENGR00306653-2 input: keyboad: snvs_pwrkey: add snvs power key driver 2014-04-16T13:58:15+00:00 Robin Gong b38343@freescale.com 2014-04-02T08:55:31+00:00 8cf20b3a736feeb814c0d32e15fdb9ee575ddbd3 add snvs power key driver since ic team has fix some issues of SNVS on i.mx6sx Signed-off-by: Robin Gong <b38343@freescale.com> 
add snvs power key driver since ic team has fix some issues of SNVS on i.mx6sx

Signed-off-by: Robin Gong <b38343@freescale.com>
Input: tsc2007 - add device tree support. 2014-04-16T13:58:15+00:00 Denis Carikli denis@eukrea.com 2013-11-19T19:56:04+00:00 ea88b2a6c41c87ce11eb309536baa416c72ee7f2 Signed-off-by: Denis Carikli <denis@eukrea.com> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com> 
Signed-off-by: Denis Carikli <denis@eukrea.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
ENGR00306133-1: input: misc: isl29023: Enable isl29023 driver for i.MX6SX-SDB platform 2014-04-16T13:58:12+00:00 Luwei Zhou b45643@freescale.com 2014-03-31T06:31:23+00:00 c9b8d2d177ba94c0df02a2fda68c647f193589a1 The isl29023 share the same interrupt gpio with mag3110 sensor. This patch add shared interrutp support. Signed-off-by: Luwei Zhou <b45643@freescale.com> 
The isl29023 share the same interrupt gpio with mag3110 sensor. This patch add shared
interrutp support.

Signed-off-by: Luwei Zhou <b45643@freescale.com>
ENGR00281813 input: mma8450: evbug module will keep print message. 2014-04-16T13:47:30+00:00 Luwei Zhou b45643@freescale.com 2013-12-20T02:23:39+00:00 74fc13798428613e7c996b3ab9bc26fbbff0e290 evbug will open the mma8450 on i.MX6SL_EVK and mma8450 will work in 2G mode by default. That is the reason why mma8450 logs will be printed out. The main changes is below: * Remove the open(), close() hook out of the drivers. The open() and close() hook in input framwork is defined as void type. It isn't strictly safe in logic when some error happends. So remove them out. * Modify the mma8450 to standby mode by default. It will be more power saving and there would be no log printing out after booting up. * Provide the sys interface to modify the mma8450 work modes. Then the higher layer can modify the the mma8450 work mode via the interface. It would be much safer.There would be a sclaemode interface in the folder of /sys/devices/soc0/soc.1/2100000.aips-bus/21a0000.i2c/i2c-0/0-001c/scalemode User can use cat to read the current scalemode and echo to write. The mode is defined as: MODE_STANDBY: 0 MODE_2G:1 MODE_4G:2 MODE_8G:3 * Add mutex to protect and some error handling. Signed-off-by: Luwei Zhou <b45643@freescale.com> 
evbug will open the mma8450 on i.MX6SL_EVK and mma8450 will work in 2G mode by default.
That is the reason why mma8450 logs will be printed out. The main changes is below:

 * Remove the open(), close() hook out of the drivers. The open() and close()
   hook in input framwork is defined as void type. It isn't strictly safe in
   logic when some error happends. So remove them out.
 * Modify the mma8450 to standby mode by default. It will be more power saving
   and there would be no log printing out after booting up.
 * Provide the sys interface to modify the mma8450 work modes. Then the higher
   layer can modify the the mma8450 work mode via the interface. It would be
   much safer.There would be a sclaemode interface in the folder of
   /sys/devices/soc0/soc.1/2100000.aips-bus/21a0000.i2c/i2c-0/0-001c/scalemode
   User can use cat to read the current scalemode and echo to write. The mode
   is defined as: MODE_STANDBY: 0  MODE_2G:1  MODE_4G:2  MODE_8G:3
 * Add mutex to protect and some error handling.

Signed-off-by: Luwei Zhou <b45643@freescale.com>
ENGR00283508-3 keyboard: imx: support pin sleep mode in suspend 2014-04-16T13:05:48+00:00 Anson Huang b20788@freescale.com 2013-10-14T19:19:20+00:00 ee1e9ebaadb6a4afc214bf4e31b0c41bfe1cf71b When system suspend, need to switch keyboard pins to sleep mode, this is to save IO power. Using pinctrl mode switch framework to make it happen. Signed-off-by: Anson Huang <b20788@freescale.com> 
When system suspend, need to switch keyboard pins to sleep mode,
this is to save IO power. Using pinctrl mode switch framework
to make it happen.

Signed-off-by: Anson Huang <b20788@freescale.com>
ENGR00277864 input: mma8450: Add chip id check in probe 2014-04-16T13:05:31+00:00 Luwei Zhou b45643@freescale.com 2013-09-03T09:32:55+00:00 208d97f2441fc0f796713610b541c5fad6da6fc2 Add chip ID check in probe function. The mma8450 is on the E-INK daughter board. When the daughter board is not pluged, there would be polling error log continuously. Add the check to avoid this. Signed-off-by: Luwei Zhou <b45643@freescale.com> 
Add chip ID check in probe function. The mma8450 is
on the E-INK daughter board. When the daughter board
is not pluged, there would be polling error log
continuously. Add the check to avoid this.

Signed-off-by: Luwei Zhou <b45643@freescale.com>
ENGR00277955-1 keyboard: gpio_keys: support wakeup system from freeze mode 2014-04-16T13:01:40+00:00 Anson Huang b20788@freescale.com 2013-09-04T01:43:48+00:00 8e5ab16eda34e47ddbd2602cd24a8f382f761db2 To support wakeup system from freeze mode of suspend, device's irq can NOT be disabled during devices suspend, so we need to add IRQF_NO_SUSPEND flag to irqflags. Signed-off-by: Anson Huang <b20788@freescale.com> 
To support wakeup system from freeze mode of suspend,
device's irq can NOT be disabled during devices suspend,
so we need to add IRQF_NO_SUSPEND flag to irqflags.

Signed-off-by: Anson Huang <b20788@freescale.com>