AM3354 When powerdown resume Touch panel position error

HI,

Have you calibrated your touchscreen?

Hi Biser:

    Yes, customer is always performing the TP calibration on the 1st time boot.

    Please review the below logs.

    We know the Touch panel driver ADC data might be wrong due to Suspend/Resume.

    So, we tested 1 work around in the below scenario:

     Step1: remove the TP module before the system entering the suspend.

     Step2: Waiting the system suspend.

     Step3: When the system resume, we re-mount the TP module.

     But, even this, the TP driver still has this issue.  

     We thought the ADC is having the wrong data during the suspend/resume phase.

     So, we might need a solution that is asking the ADC to purge the data while in this phase.

     Any comments?

[ 0.000000] Booting Linux on physical CPU 0x0
[ 0.000000] Linux version 3.14.43+ (jones@jones-ut) (gcc version 4.7.3 20130226 (prerelease) (crosstool-NG linaro-1.13.1-4.7-2013.03-20130313 - Linaro GCC 2013.03) ) #13 Tue Apr 19 11:55:26 CST 2016
[ 0.000000] CPU: ARMv7 Processor [413fc082] revision 2 (ARMv7), cr=10c5387d
[ 0.000000] CPU: PIPT / VIPT nonaliasing data cache, VIPT aliasing instruction cache
[ 0.000000] Machine model: TI AM335x EVM-SK
[ 0.000000] cma: CMA: reserved 24 MiB at 8c800000
[ 0.000000] Memory policy: Data cache writeback
[ 0.000000] On node 0 totalpages: 65280
[ 0.000000] free_area_init_node: node 0, pgdat c0891000, node_mem_map cfcee000
[ 0.000000] Normal zone: 512 pages used for memmap
[ 0.000000] Normal zone: 0 pages reserved
[ 0.000000] Normal zone: 65280 pages, LIFO batch:15
[ 0.000000] CPU: All CPU(s) started in SVC mode.
[ 0.000000] AM335X ES2.1 (neon )
[ 0.000000] pcpu-alloc: s0 r0 d32768 u32768 alloc=1*32768
[ 0.000000] pcpu-alloc: [0] 0
[ 0.000000] Built 1 zonelists in Zone order, mobility grouping on. Total pages: 64768
[ 0.000000] Kernel command line: console=ttyO0,115200n8 root=/dev/mmcblk0p2 ro rootfstype=ext4 rootwait
[ 0.000000] PID hash table entries: 1024 (order: 0, 4096 bytes)
[ 0.000000] Dentry cache hash table entries: 32768 (order: 5, 131072 bytes)
[ 0.000000] Inode-cache hash table entries: 16384 (order: 4, 65536 bytes)
[ 0.000000] Memory: 225100K/261120K available (6031K kernel code, 298K rwdata, 2140K rodata, 266K init, 225K bss, 36020K reserved, 0K highmem)
[ 0.000000] Virtual kernel memory layout:
[ 0.000000] vector : 0xffff0000 - 0xffff1000 ( 4 kB)
[ 0.000000] fixmap : 0xfff00000 - 0xfffe0000 ( 896 kB)
[ 0.000000] vmalloc : 0xd0800000 - 0xff000000 ( 744 MB)
[ 0.000000] lowmem : 0xc0000000 - 0xd0000000 ( 256 MB)
[ 0.000000] pkmap : 0xbfe00000 - 0xc0000000 ( 2 MB)
[ 0.000000] modules : 0xbf000000 - 0xbfe00000 ( 14 MB)
[ 0.000000] .text : 0xc0008000 - 0xc08030c4 (8173 kB)
[ 0.000000] .init : 0xc0804000 - 0xc0846acc ( 267 kB)
[ 0.000000] .data : 0xc0848000 - 0xc0892ac0 ( 299 kB)
[ 0.000000] .bss : 0xc0892ac0 - 0xc08cb1a0 ( 226 kB)
[ 0.000000] NR_IRQS:16 nr_irqs:16 16
[ 0.000000] IRQ: Found an INTC at 0xfa200000 (revision 5.0) with 128 interrupts
[ 0.000000] Total of 128 interrupts on 1 active controller
[ 0.000000] OMAP clockevent source: timer2 at 24000000 Hz
[ 0.000015] sched_clock: 32 bits at 24MHz, resolution 41ns, wraps every 178956969942ns
[ 0.000041] OMAP clocksource: timer1 at 24000000 Hz
[ 0.000387] Console: colour dummy device 80x30
[ 0.000419] WARNING: Your 'console=ttyO0' has been replaced by 'ttyS0'
[ 0.000428] This ensures that you still see kernel messages. Please
[ 0.000435] update your kernel commandline.
[ 0.000461] Calibrating delay loop... 597.60 BogoMIPS (lpj=2988032)
[ 0.059174] pid_max: default: 32768 minimum: 301
[ 0.059306] Security Framework initialized
[ 0.059374] Mount-cache hash table entries: 1024 (order: 0, 4096 bytes)
[ 0.059388] Mountpoint-cache hash table entries: 1024 (order: 0, 4096 bytes)
[ 0.068770] CPU: Testing write buffer coherency: ok
[ 0.069281] Setting up static identity map for 0x805e98a0 - 0x805e98f8
[ 0.070432] devtmpfs: initialized
[ 0.072750] VFP support v0.3: implementor 41 architecture 3 part 30 variant c rev 3
[ 0.082394] omap_hwmod: tptc0 using broken dt data from edma
[ 0.082502] omap_hwmod: tptc1 using broken dt data from edma
[ 0.082598] omap_hwmod: tptc2 using broken dt data from edma
[ 0.087177] omap_hwmod: debugss: _wait_target_disable failed
[ 0.144165] pinctrl core: initialized pinctrl subsystem
[ 0.145384] regulator-dummy: no parameters
[ 0.148124] NET: Registered protocol family 16
[ 0.150697] DMA: preallocated 256 KiB pool for atomic coherent allocations
[ 0.153874] cpuidle: using governor ladder
[ 0.153893] cpuidle: using governor menu
[ 0.162117] syscon 44e10000.control_module: regmap [mem 0x44e10000-0x44e107fb] registered
[ 0.163929] platform 49000000.edma: alias fck already exists
[ 0.163960] platform 49000000.edma: alias fck already exists
[ 0.163979] platform 49000000.edma: alias fck already exists
[ 0.165004] gpiochip_add: registered GPIOs 0 to 31 on device: gpio
[ 0.165375] OMAP GPIO hardware version 0.1
[ 0.166415] gpiochip_add: registered GPIOs 32 to 63 on device: gpio
[ 0.167668] gpiochip_add: registered GPIOs 64 to 95 on device: gpio
[ 0.168924] gpiochip_add: registered GPIOs 96 to 127 on device: gpio
[ 0.184533] No ATAGs?
[ 0.184563] hw-breakpoint: debug architecture 0x4 unsupported.
[ 0.219325] bio: create slab <bio-0> at 0
[ 0.238918] edma-dma-engine edma-dma-engine.0: TI EDMA DMA engine driver
[ 0.239877] of_get_named_gpiod_flags: can't parse gpios property of node '/fixedregulator@0[0]'
[ 0.240239] vbat: 5000 mV
[ 0.240390] of_get_named_gpiod_flags: can't parse gpios property of node '/fixedregulator@1[0]'
[ 0.240728] lis3_reg: no parameters
[ 0.240925] of_get_named_gpiod_flags exited with status 0
[ 0.241358] vtt: 1500 mV
[ 0.245525] vgaarb: loaded
[ 0.246181] i2c-core: driver [palmas] using legacy suspend method
[ 0.246193] i2c-core: driver [palmas] using legacy resume method
[ 0.247103] SCSI subsystem initialized
[ 0.247780] libata version 3.00 loaded.
[ 0.248982] usbcore: registered new interface driver usbfs
[ 0.249284] usbcore: registered new interface driver hub
[ 0.249562] usbcore: registered new device driver usb
[ 0.250832] omap_i2c 44e0b000.i2c: could not find pctldev for node /pinmux@44e10800/pinmux_i2c0_pins, deferring probe
[ 0.250869] platform 44e0b000.i2c: Driver omap_i2c requests probe deferral
[ 0.250904] omap_i2c 4819c000.i2c: could not find pctldev for node /pinmux@44e10800/pinmux_i2c2_pins, deferring probe
[ 0.250923] platform 4819c000.i2c: Driver omap_i2c requests probe deferral
[ 0.251403] pps_core: LinuxPPS API ver. 1 registered
[ 0.251417] pps_core: Software ver. 5.3.6 - Copyright 2005-2007 Rodolfo Giometti <giometti@linux.it>
[ 0.251578] PTP clock support registered
[ 0.254063] omap-mailbox 480c8000.mailbox: omap mailbox rev 0x400
[ 0.255389] Advanced Linux Sound Architecture Driver Initialized.
[ 0.257351] cfg80211: Calling CRDA to update world regulatory domain
[ 0.258436] Switched to clocksource timer1
[ 0.283282] NET: Registered protocol family 2
[ 0.284372] TCP established hash table entries: 2048 (order: 1, 8192 bytes)
[ 0.284417] TCP bind hash table entries: 2048 (order: 1, 8192 bytes)
[ 0.284453] TCP: Hash tables configured (established 2048 bind 2048)
[ 0.284531] TCP: reno registered
[ 0.284548] UDP hash table entries: 256 (order: 0, 4096 bytes)
[ 0.284573] UDP-Lite hash table entries: 256 (order: 0, 4096 bytes)
[ 0.284799] NET: Registered protocol family 1
[ 0.285249] RPC: Registered named UNIX socket transport module.
[ 0.285265] RPC: Registered udp transport module.
[ 0.285273] RPC: Registered tcp transport module.
[ 0.285281] RPC: Registered tcp NFSv4.1 backchannel transport module.
[ 0.285298] PCI: CLS 0 bytes, default 64
[ 0.286583] hw perfevents: enabled with ARMv7 Cortex-A8 PMU driver, 5 counters available
[ 0.290172] futex hash table entries: 256 (order: -1, 3072 bytes)
[ 0.515809] VFS: Disk quotas dquot_6.5.2
[ 0.515894] Dquot-cache hash table entries: 1024 (order 0, 4096 bytes)
[ 0.516526] NFS: Registering the id_resolver key type
[ 0.516614] Key type id_resolver registered
[ 0.516625] Key type id_legacy registered
[ 0.516673] jffs2: version 2.2. (NAND) (SUMMARY) © 2001-2006 Red Hat, Inc.
[ 0.516894] msgmni has been set to 487
[ 0.518798] NET: Registered protocol family 38
[ 0.518848] io scheduler noop registered
[ 0.518858] io scheduler deadline registered
[ 0.518888] io scheduler cfq registered (default)
[ 0.521148] pinctrl-single 44e10800.pinmux: 142 pins at pa f9e10800 size 568
[ 0.523978] of_get_named_gpiod_flags exited with status 0
[ 0.526761] Serial: 8250/16550 driver, 10 ports, IRQ sharing enabled
[ 0.532770] of_get_named_gpiod_flags: can't parse gpios property of node '/ocp/serial@44e09000[0]'
[ 0.533469] 44e09000.serial: ttyS0 at MMIO 0x44e09000 (irq = 88, base_baud = 3000000) is a 8250
[ 1.184501] console [ttyS0] enabled
[ 1.188768] of_get_named_gpiod_flags: can't parse gpios property of node '/ocp/serial@48022000[0]'
[ 1.189381] 48022000.serial: ttyS1 at MMIO 0x48022000 (irq = 89, base_baud = 3000000) is a 8250
[ 1.198867] of_get_named_gpiod_flags: can't parse gpios property of node '/ocp/serial@48024000[0]'
[ 1.199412] 48024000.serial: ttyS2 at MMIO 0x48024000 (irq = 90, base_baud = 3000000) is a 8250
[ 1.208860] of_get_named_gpiod_flags: can't parse gpios property of node '/ocp/serial@481a6000[0]'
[ 1.209390] 481a6000.serial: ttyS3 at MMIO 0x481a6000 (irq = 60, base_baud = 3000000) is a 8250
[ 1.218829] of_get_named_gpiod_flags: can't parse gpios property of node '/ocp/serial@481a8000[0]'
[ 1.219368] 481a8000.serial: ttyS4 at MMIO 0x481a8000 (irq = 61, base_baud = 3000000) is a 8250
[ 1.228811] of_get_named_gpiod_flags: can't parse gpios property of node '/ocp/serial@481aa000[0]'
[ 1.229341] 481aa000.serial: ttyS5 at MMIO 0x481aa000 (irq = 62, base_baud = 3000000) is a 8250
[ 1.240363] omap_rng 48310000.rng: OMAP Random Number Generator ver. 20
[ 1.247481] [drm] Initialized drm 1.1.0 20060810
[ 1.265941] brd: module loaded
[ 1.276217] loop: module loaded
[ 1.279938] (hci_tty): inside hci_tty_init
[ 1.284626] (hci_tty): allocated 249, 0
[ 1.294113] mtdoops: mtd device (mtddev=name/number) must be supplied
[ 1.305218] PPP generic driver version 2.4.2
[ 1.310189] PPP BSD Compression module registered
[ 1.314920] PPP Deflate Compression module registered
[ 1.320297] usbcore: registered new interface driver asix
[ 1.325994] usbcore: registered new interface driver ax88179_178a
[ 1.332322] usbcore: registered new interface driver cdc_ether
[ 1.338466] usbcore: registered new interface driver smsc95xx
[ 1.344407] usbcore: registered new interface driver net1080
[ 1.350319] usbcore: registered new interface driver cdc_subset
[ 1.356498] usbcore: registered new interface driver zaurus
[ 1.362360] usbcore: registered new interface driver cdc_ncm
[ 1.368680] ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI) Driver
[ 1.375241] ehci-pci: EHCI PCI platform driver
[ 1.379966] ehci-omap: OMAP-EHCI Host Controller driver
[ 1.385817] usbcore: registered new interface driver cdc_wdm
[ 1.391808] usbcore: registered new interface driver usb-storage
[ 1.399222] mousedev: PS/2 mouse device common for all mice
[ 1.406922] i2c-core: driver [rtc-ds1307] using legacy suspend method
[ 1.413451] i2c-core: driver [rtc-ds1307] using legacy resume method
[ 1.420854] omap_rtc 44e3e000.rtc: rtc core: registered 44e3e000.rtc as rtc0
[ 1.427990] 44e3e000.rtc: already running
[ 1.433108] i2c /dev entries driver
[ 1.436809] Driver for 1-wire Dallas network protocol.
[ 1.444971] omap_wdt: OMAP Watchdog Timer Rev 0x01: initial timeout 60 sec
[ 1.453811] of_get_named_gpiod_flags exited with status 0
[ 1.453834] of_get_named_gpiod_flags: can't parse gpios property of node '/ocp/mmc@48060000[0]'
[ 1.454370] omap_hsmmc 48060000.mmc: unable to get vmmc regulator -517
[ 1.461248] platform 48060000.mmc: Driver omap_hsmmc requests probe deferral
[ 1.468952] pinctrl-single 44e10800.pinmux: bad data for mux user_leds_default
[ 1.476220] pinctrl-single 44e10800.pinmux: no pins entries for user_leds_default
[ 1.483920] of_get_named_gpiod_flags exited with status 0
[ 1.483940] of_get_named_gpiod_flags exited with status 0
[ 1.483955] of_get_named_gpiod_flags exited with status 0
[ 1.483968] of_get_named_gpiod_flags exited with status 0
[ 1.483983] of_get_named_gpiod_flags exited with status 0
[ 1.484368] of_get_named_gpiod_flags exited with status 0
[ 1.484697] of_get_named_gpiod_flags exited with status 0
[ 1.485000] of_get_named_gpiod_flags exited with status 0
[ 1.485702] ledtrig-cpu: registered to indicate activity on CPUs
[ 1.492219] omap-aes 53500000.aes: OMAP AES hw accel rev: 3.2
[ 1.499648] omap-sham 53100000.sham: hw accel on OMAP rev 4.3
[ 1.507238] usbcore: registered new interface driver usbhid
[ 1.512903] usbhid: USB HID core driver
[ 1.517077] platform 44d00000.wkup_m3: Driver wkup_m3 requests probe deferral
[ 1.529270] oprofile: using arm/armv7
[ 1.533313] TCP: cubic registered
[ 1.536647] Initializing XFRM netlink socket
[ 1.541079] NET: Registered protocol family 17
[ 1.545599] NET: Registered protocol family 15
[ 1.550241] Key type dns_resolver registered
[ 1.555390] cpu cpu0: of_pm_voltdm_notifier_register: Failed to get cpu0 regulator/voltdm: -517
[ 1.564196] cpu cpu0: cpu0 clock notifier not ready, retry
[ 1.569830] platform cpufreq-cpu0.0: Driver cpufreq-cpu0 requests probe deferral
[ 1.577637] [36m[Climax] am33xx_pm_init create /proc/wakeupsrc[0m
[ 1.584462] PM: bootloader does not support rtc-only!
[ 1.589592] ThumbEE CPU extension supported.
[ 1.593898] Registering SWP/SWPB emulation handler
[ 1.600641] lis3_reg: disabling
[ 1.603811] vbat: disabling
[ 1.606618] regulator-dummy: disabling
[ 1.613957] [drm] Supports vblank timestamp caching Rev 2 (21.10.2013).
[ 1.620684] [drm] No driver support for vblank timestamp query.
[ 1.686622] Console: switching to colour frame buffer device 100x30
[ 1.700937] tilcdc 4830e000.lcdc: fb0: frame buffer device
[ 1.706538] tilcdc 4830e000.lcdc: registered panic notifier
[ 1.712166] [drm] Initialized tilcdc 1.0.0 20121205 on minor 0
[ 1.721015] tps65910 1-002d: No interrupt support, no core IRQ
[ 1.731712] vrtc: 1800 mV
[ 1.734773] vrtc: supplied by vbat
[ 1.740105] vio: at 1500 mV
[ 1.743120] vio: supplied by vbat
[ 1.748498] vdd_mpu: 912 <--> 1375 mV at 1137 mV
[ 1.753319] vdd_mpu: supplied by vbat
[ 1.759018] vdd_core: 912 <--> 1150 mV at 1137 mV
[ 1.763923] vdd_core: supplied by vbat
[ 1.769212] vdd3: 5000 mV
[ 1.773477] vdig1: at 1800 mV
[ 1.776648] vdig1: supplied by vbat
[ 1.781680] vdig2: at 1800 mV
[ 1.784840] vdig2: supplied by vbat
[ 1.789948] vpll: at 1800 mV
[ 1.793047] vpll: supplied by vbat
[ 1.798012] vdac: at 1800 mV
[ 1.801117] vdac: supplied by vbat
[ 1.806070] vaux1: at 1800 mV
[ 1.809259] vaux1: supplied by vbat
[ 1.814329] vaux2: at 3300 mV
[ 1.817482] vaux2: supplied by vbat
[ 1.822472] vaux33: at 3300 mV
[ 1.825720] vaux33: supplied by vbat
[ 1.830956] vmmc: 1800 <--> 3300 mV at 3300 mV
[ 1.835603] vmmc: supplied by vbat
[ 1.840640] omap_i2c 44e0b000.i2c: bus 1 rev0.11 at 400 kHz
[ 1.847845] omap_i2c 4819c000.i2c: bus 3 rev0.11 at 400 kHz
[ 1.854174] of_get_named_gpiod_flags exited with status 0
[ 1.854195] of_get_named_gpiod_flags: can't parse gpios property of node '/ocp/mmc@48060000[0]'
[ 1.889187] remoteproc0: wkup_m3 is available
[ 1.893688] remoteproc0: Note: remoteproc is still under development and considered experimental.
[ 1.902731] remoteproc0: THE BINARY FORMAT IS NOT YET FINALIZED, and backward compatibility isn't yet guaranteed.
[ 1.913366] remoteproc0: Direct firmware load failed with error -2
[ 1.919738] remoteproc0: Falling back to user helper
[ 1.925361] cpu cpu0: of_pm_voltdm_notifier_register: Fail calculating voltage latency[950000<->1260000]:-22
[ 2.008871] mmc0: host does not support reading read-only switch. assuming write-enable.
[ 2.022478] mmc0: new high speed SDHC card at address aaaa
[ 2.028738] mmcblk0: mmc0:aaaa SU04G 3.69 GiB
[ 2.037062] mmcblk0: p1 p2
[ 2.039945] davinci_mdio 4a101000.mdio: davinci mdio revision 1.6
[ 2.046080] davinci_mdio 4a101000.mdio: detected phy mask fffffffd
[ 2.054422] libphy: 4a101000.mdio: probed
[ 2.058525] davinci_mdio 4a101000.mdio: phy[1]: device 4a101000.mdio:01, driver unknown
[ 2.067493] cpsw 4a100000.ethernet: Detected MACID = 78:a5:04:b0:77:b3
[ 2.075959] of_get_named_gpiod_flags exited with status 0
[ 2.076634] input: gpio_buttons@0 as /devices/gpio_buttons@0/input/input0
[ 2.084375] omap_rtc 44e3e000.rtc: setting system clock to 2016-04-20 08:13:59 UTC (1461140039)
[ 2.096252] ALSA device list:
[ 2.099317] No soundcards found.
[ 2.115692] EXT4-fs (mmcblk0p2): mounted filesystem with ordered data mode. Opts: (null)
[ 2.123965] VFS: Mounted root (ext4 filesystem) readonly on device 179:2.
[ 2.135292] devtmpfs: mounted
[ 2.138745] Freeing unused kernel memory: 264K (c0804000 - c0846000)
[ 2.809265] udev[871]: starting version 164
[ 3.048041] remoteproc0: powering up wkup_m3
[ 3.089829] remoteproc0: Booting fw image am335x-pm-firmware.elf, size 154412
[ 3.097598] PM: CM3 Firmware Version = 0x190
[ 3.417242] input: ti-tsc as /devices/ocp/44e0d000.tscadc/TI-am335x-tsc/input/input1
[ 3.511935] of_get_named_gpiod_flags: can't parse gpios property of node '/ocp/usb@47400000/usb-phy@47401300[0]'
[ 3.512030] 47401300.usb-phy supply vcc not found, using dummy regulator
[ 3.553774] remoteproc0: remote processor wkup_m3 is now up
[ 3.727891] of_get_named_gpiod_flags: can't parse gpios property of node '/ocp/usb@47400000/usb-phy@47401b00[0]'
[ 3.727985] 47401b00.usb-phy supply vcc not found, using dummy regulator
[ 3.765833] of_get_named_gpiod_flags: can't parse gpios property of node '/ocp/i2c@44e0b000/tlv320aic3104@18[0]'
[ 4.176228] tlv320aic3x-codec 1-0018: ASoC: DAPM unknown pin MONO_LOUT
[ 4.580053] davinci_evm sound: tlv320aic3x-hifi <-> 48038000.mcasp mapping ok
[ 5.869740] musb-hdrc: ConfigData=0xde (UTMI-8, dyn FIFOs, bulk combine, bulk split, HB-ISO Rx, HB-ISO Tx, SoftConn)
[ 5.869767] musb-hdrc: MHDRC RTL version 2.0
[ 5.869778] musb-hdrc: setup fifo_mode 4
[ 5.869797] musb-hdrc: 28/31 max ep, 16384/16384 memory
[ 5.869946] musb-hdrc musb-hdrc.0.auto: MUSB HDRC host driver
[ 5.900357] musb-hdrc musb-hdrc.0.auto: new USB bus registered, assigned bus number 1
[ 5.942101] usb usb1: New USB device found, idVendor=1d6b, idProduct=0002
[ 5.949019] usb usb1: New USB device strings: Mfr=3, Product=2, SerialNumber=1
[ 5.956286] usb usb1: Product: MUSB HDRC host driver
[ 5.961297] usb usb1: Manufacturer: Linux 3.14.43+ musb-hcd
[ 5.966894] usb usb1: SerialNumber: musb-hdrc.0.auto
[ 6.065573] hub 1-0:1.0: USB hub found
[ 6.070757] hub 1-0:1.0: 1 port detected
[ 6.105779] musb-hdrc: ConfigData=0xde (UTMI-8, dyn FIFOs, bulk combine, bulk split, HB-ISO Rx, HB-ISO Tx, SoftConn)
[ 6.105805] musb-hdrc: MHDRC RTL version 2.0
[ 6.105815] musb-hdrc: setup fifo_mode 4
[ 6.105834] musb-hdrc: 28/31 max ep, 16384/16384 memory
[ 6.105970] musb-hdrc musb-hdrc.1.auto: MUSB HDRC host driver
[ 6.141596] musb-hdrc musb-hdrc.1.auto: new USB bus registered, assigned bus number 2
[ 6.168957] usb usb2: New USB device found, idVendor=1d6b, idProduct=0002
[ 6.175798] usb usb2: New USB device strings: Mfr=3, Product=2, SerialNumber=1
[ 6.183099] usb usb2: Product: MUSB HDRC host driver
[ 6.188097] usb usb2: Manufacturer: Linux 3.14.43+ musb-hcd
[ 6.193717] usb usb2: SerialNumber: musb-hdrc.1.auto
[ 6.259293] hub 2-0:1.0: USB hub found
[ 6.268134] hub 2-0:1.0: 1 port detected
[ 6.276712] FAT-fs (mmcblk0p1): Volume was not properly unmounted. Some data may be corrupt. Please run fsck.
[ 6.619211] EXT4-fs (mmcblk0p2): re-mounted. Opts: data=ordered
[ 6.688637] usb 2-1: new high-speed USB device number 2 using musb-hdrc
[ 6.839951] usb 2-1: New USB device found, idVendor=0bda, idProduct=018a
[ 6.846707] usb 2-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[ 6.853935] usb 2-1: Product: 802.11n WLAN Adapter
[ 6.858763] usb 2-1: Manufacturer: Realtek
[ 6.862878] usb 2-1: SerialNumber: 00e04c000001
[ 7.123420] random: nonblocking pool is initialized
[ 7.426796] net eth0: initializing cpsw version 1.12 (0)
[ 7.508827] net eth0: phy found : id is : 0x20005c90
[ 9.509181] libphy: 4a101000.mdio:01 - Link is Up - 100/Full
[ 13.308113] couldn't find an available UDC
[ 16.668893] MPFX:
[ 16.668893] Register CLIMAX character driver success!
[ 16.668893]
[ 16.678274] climax_drv: Device opened.
[ 16.695896] usb 2-1: USB disconnect, device number 2
[ 19.628583] usb 2-1: new high-speed USB device number 3 using musb-hdrc
[ 19.770500] usb 2-1: New USB device found, idVendor=0bda, idProduct=018a
[ 19.777330] usb 2-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[ 19.784596] usb 2-1: Product: 802.11n WLAN Adapter
[ 19.789457] usb 2-1: Manufacturer: Realtek
[ 19.793592] usb 2-1: SerialNumber: 00e04c000001
[ 25.649802] usbcore: registered new interface driver rtl8192cu
[ 48.343144] rtw_wx_set_mlme
[ 48.345978] rtw_wx_set_mlme, cmd=0, reason=3
[ 49.522825] usbcore: deregistering interface driver rtl8192cu
[ 50.715601] usb 2-1: USB disconnect, device number 3
[ 52.012480] PM: Syncing filesystems ... done.
[ 52.025556] PM: Preparing system for mem sleep
[ 52.030568] Freezing user space processes ... (elapsed 0.002 seconds) done.
[ 52.040737] Freezing remaining freezable tasks ... (elapsed 0.001 seconds) done.
[ 52.049729] PM: Entering mem sleep
[ 52.049796] Suspending console(s) (use no_console_suspend to debug)
[ 52.286423] PM: suspend of devices complete after 229.147 msecs
[ 52.287512] PM: late suspend of devices complete after 1.060 msecs
[ 52.292113] omap_hwmod: adc_tsc: _wait_target_disable failed
[ 52.293093] PM: noirq suspend of devices complete after 5.546 msecs
[ 52.293227] PM: Successfully put all powerdomains to target state
[ 52.293227] PM: Wakeup source GPIO0
[ 52.310288] PM: noirq resume of devices complete after 16.929 msecs
[ 52.311458] PM: early resume of devices complete after 0.798 msecs
[ 52.568672] PM: resume of devices complete after 257.166 msecs
[ 52.622237] PM: Finishing wakeup.
[ 52.622246] Restarting tasks ... done.
[ 62.263958] net eth0: initializing cpsw version 1.12 (0)
[ 62.348840] net eth0: phy found : id is : 0x20005c90
[ 62.498854] usb 2-1: new high-speed USB device number 4 using musb-hdrc
[ 62.670071] usb 2-1: New USB device found, idVendor=0bda, idProduct=018a
[ 62.676864] usb 2-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[ 62.684083] usb 2-1: Product: 802.11n WLAN Adapter
[ 62.688924] usb 2-1: Manufacturer: Realtek
[ 62.693043] usb 2-1: SerialNumber: 00e04c000001
[ 64.349665] libphy: 4a101000.mdio:01 - Link is Up - 100/Full
[ 68.710287] usbcore: registered new interface driver rtl8192cu

rmmod ti_am335x_tsc.ko

[ 115.987791] irq 32: nobody cared (try booting with the "irqpoll" option)
[ 115.994556] CPU: 0 PID: 1544 Comm: hpgw Tainted: G O 3.14.43+ #13
[ 116.001547] Backtrace:
[ 116.004049] [<c0011240>] (dump_backtrace) from [<c00113dc>] (show_stack+0x18/0x1c)
[ 116.011649] r6:00000020 r5:cf005100 r4:cf005100 r3:00000000
[ 116.017374] [<c00113c4>] (show_stack) from [<c05e139c>] (dump_stack+0x20/0x28)
[ 116.024634] [<c05e137c>] (dump_stack) from [<c0063064>] (__report_bad_irq+0x28/0xb8)
[ 116.032413] [<c006303c>] (__report_bad_irq) from [<c0063540>] (note_interrupt+0x244/0x2a0)
[ 116.040710] r5:00000000 r4:cf005100
[ 116.044326] [<c00632fc>] (note_interrupt) from [<c00617a4>] (handle_irq_event_percpu+0xb0/0x1bc)
[ 116.053145] r10:cf005100 r9:c089269b r8:00000020 r7:00000000 r6:00000000 r5:00000000
[ 116.061033] r4:00000000 r3:00000000
[ 116.064639] [<c00616f4>] (handle_irq_event_percpu) from [<c00618e0>] (handle_irq_event+0x30/0x40)
[ 116.073545] r10:c06296f0 r9:cc0c7000 r8:00001000 r7:00000020 r6:cc369dd0 r5:00000020
[ 116.081433] r4:cf005100
[ 116.083985] [<c00618b0>] (handle_irq_event) from [<c0063ce8>] (handle_level_irq+0x88/0xdc)
[ 116.092282] r4:cf005100 r3:00020000
[ 116.095886] [<c0063c60>] (handle_level_irq) from [<c0060ff4>] (generic_handle_irq+0x28/0x38)
[ 116.104355] r4:00000020 r3:c0063c60
[ 116.107960] [<c0060fcc>] (generic_handle_irq) from [<c000f060>] (handle_IRQ+0x38/0x8c)
[ 116.115907] r4:c0866740 r3:00000110
[ 116.119514] [<c000f028>] (handle_IRQ) from [<c00085f0>] (omap3_intc_handle_irq+0x8c/0xa4)
[ 116.127721] r6:c08933a0 r5:cc369ce8 r4:fa200000 r3:00000080
[ 116.133433] [<c0008564>] (omap3_intc_handle_irq) from [<c05e5d00>] (__irq_svc+0x40/0x50)
[ 116.141556] Exception stack(0xcc369ce8 to 0xcc369d30)
[ 116.146632] 9ce0: c0893d40 00000000 00400040 0000000a 00000040 00000021
[ 116.154848] 9d00: c0893d80 cc368000 00001000 cc0c7000 c06296f0 cc369d74 cc369d30 cc369d30
[ 116.163059] 9d20: c0038580 c00385ec 200f0113 ffffffff
[ 116.168128] r7:cc369d1c r6:ffffffff r5:200f0113 r4:c00385ec
[ 116.173839] [<c0038568>] (__do_softirq) from [<c00389c8>] (irq_exit+0xa4/0xf4)
[ 116.181088] r10:c06296f0 r9:cc0c7000 r8:00001000 r7:00000021 r6:00000000 r5:00000021
[ 116.188977] r4:cc368000
[ 116.191528] [<c0038924>] (irq_exit) from [<c000f064>] (handle_IRQ+0x3c/0x8c)
[ 116.198603] r4:c0866740 r3:00000110
[ 116.202206] [<c000f028>] (handle_IRQ) from [<c00085f0>] (omap3_intc_handle_irq+0x8c/0xa4)
[ 116.210414] r6:c08933a0 r5:cc369dd0 r4:fa200000 r3:00000080
[ 116.216125] [<c0008564>] (omap3_intc_handle_irq) from [<c05e5d00>] (__irq_svc+0x40/0x50)
[ 116.224248] Exception stack(0xcc369dd0 to 0xcc369e18)
[ 116.229321] 9dc0: ffffb803 c085c870 00000001 f9e0d000
[ 116.237535] 9de0: cf2c2c00 cc369e40 cf2b4700 00000fff 00001000 cc0c7000 c06296f0 cc369e34
[ 116.245748] 9e00: cc369e18 cc369e18 c0499b5c c0499b74 200f0013 ffffffff
[ 116.252387] r7:cc369e04 r6:ffffffff r5:200f0013 r4:c0499b74
[ 116.258112] [<c0499a8c>] (tiadc_read_raw) from [<c0494b7c>] (iio_read_channel_info+0x3c/0x64)
[ 116.266669] r6:cf769540 r5:cf2c1e00 r4:cc0c7000 r3:cc369e44
[ 116.272385] [<c0494b40>] (iio_read_channel_info) from [<c0321650>] (dev_attr_show+0x24/0x50)
[ 116.280855] r4:cf370b80
[ 116.283410] [<c032162c>] (dev_attr_show) from [<c0124ab4>] (sysfs_kf_seq_show+0x94/0x110)
[ 116.291619] r5:cf2c2c18 r4:cf370b80
[ 116.295228] [<c0124a20>] (sysfs_kf_seq_show) from [<c012786c>] (kernfs_seq_show+0x2c/0x30)
[ 116.303524] r10:00000001 r9:00000000 r8:cf676200 r7:cc369ec8 r6:cf370b80 r5:00000001
[ 116.311413] r4:cf769540 r3:c0124a20
[ 116.315025] [<c0127840>] (kernfs_seq_show) from [<c00e6808>] (seq_read+0x1c8/0x4a0)
[ 116.322718] [<c00e6640>] (seq_read) from [<c01281ec>] (kernfs_fop_read+0x114/0x15c)
[ 116.330404] r10:b441cd88 r9:0000003f r8:0000003f r7:cc369f78 r6:b441cd88 r5:0000003f
[ 116.338296] r4:cf769540
[ 116.340857] [<c01280d8>] (kernfs_fop_read) from [<c00c8bcc>] (vfs_read+0x98/0x138)
[ 116.348455] r10:b441cd88 r9:cc368000 r8:0000003f r7:cc369f78 r6:b441cd88 r5:0000003f
[ 116.356342] r4:cf676200
[ 116.358896] [<c00c8b34>] (vfs_read) from [<c00c8da4>] (SyS_read+0x44/0x90)
[ 116.365796] r10:b441cd88 r8:0000003f r7:cf676200 r6:cf676203 r5:00000000 r4:00000000
[ 116.373693] [<c00c8d60>] (SyS_read) from [<c000e780>] (ret_fast_syscall+0x0/0x30)
[ 116.381204] r10:00000000 r8:c000e904 r7:00000003 r6:00000000 r5:0000003f r4:00000000
[ 116.389092] handlers:
[ 116.391374] [<c0499cd4>] tiadc_irq_h threaded [<c0499c14>] tiadc_worker_h
[ 116.398202] Disabling IRQ #32

insmod /lib/modules/3.14.43+/kernel/drivers/input/touchscreen/ti_am335x_tsc.ko

[ 161.967480] input: ti-tsc as /devices/ocp/44e0d000.tscadc/TI-am335x-tsc/input/input2

You could try applying a software reset to the ADC upon driver initialization.

Hi Biser:
Yes, that's what I think, but. how to do this?
Where is the Code area we need to add and which API we can use?
Please point us the correct ansewr for this.

Thanks.

BR Rio

I have asked the software team, I'm not a software expert myself.