On Thu, Jan 26, 2017 at 09:33:46AM +0100, Marek Szyprowski wrote:

Hello,

This patchset is a first step to add support for all power domains on
Exynos5433 SoCs. This patchset contains patches for Exynos pin control
driver and Exynos LPASS MFD driver, which are needed to make the
platform ready for adding power domains support.

Patches in this patchset depends on each other. They are order in such a
way to make the changes bisectable.

Patch #3 has runtime dependency on #1.
Patch #5 has runtime dependency on #3.
Patch #6 has runtime dependency on #4.

This patchset also directly depends on the "Move pad retention control to
Exynos pin controller driver" patchset:
https://www.spinics.net/lists/arm-kernel/msg556074.html

Patches have been generated on top of linux-next from 25th January 2017.

This is a part of a larger task, which goal is to add support for power
domains on Exynos5433 SoCs / TM2 boards. All patches needed to get it
working have been pushed to the following git repo:
https://git.linaro.org/people/marek.szyprowski/linux-srpol.git v4.10-next-tm2-pd

I tried your branch above on Odroid U3 and it fails to boot.
next-20170125 works fine. exynos_defconfig, booting from microSD.

Board hangs (silently) on:
[    2.283437] usb 1-3: new high-speed USB device number 3 using exynos-ehci
[    2.473786] usb 1-3: New USB device found, idVendor=0424, idProduct=3503
[    2.474856] usb 1-3: New USB device strings: Mfr=0, Product=0, SerialNumber=0
[    2.482656] hub 1-3:1.0: USB hub found
[    2.486017] hub 1-3:1.0: 3 ports detected
[   55.037205] random: crng init done

Full log attached.

Best regards,
Krzysztof

-------------- next part --------------
U-Boot 2017.01-rc2-00044-g8653b94a8f5a (Jan 06 2017 - 18:05:55 +0200)

CPU:   Exynos4412 @ 1 GHz
Model: Odroid based on Exynos4412
Board: Odroid based on Exynos4412
Type:  u3
DRAM:  2 GiB
LDO20 at VDDQ_EMMC_1.8V: set 1800000 uV; enabling
LDO22 at VDDQ_EMMC_2.8V: set 2800000 uV; enabling
LDO21 at TFLASH_2.8V: set 2800000 uV; enabling
MMC:   SAMSUNG SDHCI: 0, EXYNOS DWMMC: 1
Net:   No ethernet found.
Hit any key to stop autoboot:  0
Odroid #
Odroid # run nn
reading boot.scr
2051 bytes read in 22 ms (90.8 KiB/s)
## Executing script at 42000000
reading /zImage
4641960 bytes read in 226 ms (19.6 MiB/s)
reading /dtbs/exynos4412-odroidu3.dtb
54779 bytes read in 41 ms (1.3 MiB/s)
reading /initramfs-linux.img
** Unable to read file /initramfs-linux.img **
Kernel image @ 0x40007fc0 [ 0x000000 - 0x46d4a8 ]
## Flattened Device Tree blob at 40800000
   Booting using the fdt blob at 0x40800000
   Loading Device Tree to 4ffef000, end 4ffff5fa ... OK

Starting kernel ...

[    0.000000] Booting Linux on physical CPU 0xa00
[    0.000000] Linux version 4.10.0-rc5-next-20170125-00050-g0dc3a91a2fba (kozik at kozik-lap) (gcc version 6.2.0 20161005 (Ubuntu 6.2.0-5ubuntu12) ) #368 SMP PREEMPT Fri Jan 27 21:41:22 IST 2017
[    0.000000] CPU: ARMv7 Processor [413fc090] revision 0 (ARMv7), cr=10c5387d
[    0.000000] CPU: PIPT / VIPT nonaliasing data cache, VIPT aliasing instruction cache
[    0.000000] OF: fdt:Machine model: Hardkernel ODROID-U3 board based on Exynos4412
[    0.000000] Reserved memory: created DMA memory pool at 0xbf700000, size 8 MiB
[    0.000000] OF: reserved mem: initialized node region_mfc_right, compatible id shared-dma-pool
[    0.000000] Reserved memory: created DMA memory pool at 0xbe700000, size 16 MiB
[    0.000000] OF: reserved mem: initialized node region_mfc_left, compatible id shared-dma-pool
[    0.000000] cma: Reserved 64 MiB at 0xba400000
[    0.000000] Memory policy: Data cache writealloc
[    0.000000] Samsung CPU ID: 0xe4412220
[    0.000000] Running under secure firmware.
[    0.000000] percpu: Embedded 16 pages/cpu @eefb9000 s34008 r8192 d23336 u65536
[    0.000000] Built 1 zonelists in Zone order, mobility grouping on.  Total pages: 516352
[    0.000000] Kernel command line: console=tty1 console=ttySAC1,115200n8 root=PARTUUID=82ec0a4a-02 rw rootwait smsc95xx.macaddr=00:1e:06:61:7a:94  no_console_suspend
[    0.000000] PID hash table entries: 4096 (order: 2, 16384 bytes)
[    0.000000] Dentry cache hash table entries: 131072 (order: 7, 524288 bytes)
[    0.000000] Inode-cache hash table entries: 65536 (order: 6, 262144 bytes)
[    0.000000] Memory: 1976632K/2071552K available (7168K kernel code, 279K rwdata, 2284K rodata, 1024K init, 319K bss, 29384K reserved, 65536K cma-reserved, 1219584K highmem)
[    0.000000] Virtual kernel memory layout:
[    0.000000]     vector  : 0xffff0000 - 0xffff1000   (   4 kB)
[    0.000000]     fixmap  : 0xffc00000 - 0xfff00000   (3072 kB)
[    0.000000]     vmalloc : 0xf0800000 - 0xff800000   ( 240 MB)
[    0.000000]     lowmem  : 0xc0000000 - 0xf0000000   ( 768 MB)
[    0.000000]     pkmap   : 0xbfe00000 - 0xc0000000   (   2 MB)
[    0.000000]     modules : 0xbf000000 - 0xbfe00000   (  14 MB)
[    0.000000]       .text : 0xc0008000 - 0xc0800000   (8160 kB)
[    0.000000]       .init : 0xc0b00000 - 0xc0c00000   (1024 kB)
[    0.000000]       .data : 0xc0c00000 - 0xc0c45f00   ( 280 kB)
[    0.000000]        .bss : 0xc0c47000 - 0xc0c96d68   ( 320 kB)
[    0.000000] SLUB: HWalign=64, Order=0-3, MinObjects=0, CPUs=4, Nodes=1
[    0.000000] Preemptible hierarchical RCU implementation.
[    0.000000]  Build-time adjustment of leaf fanout to 32.
[    0.000000]  RCU restricting CPUs from NR_CPUS=8 to nr_cpu_ids=4.
[    0.000000] RCU: Adjusting geometry for rcu_fanout_leaf=32, nr_cpu_ids=4
[    0.000000] NR_IRQS:16 nr_irqs:16 16
[    0.000000] L2C: platform modifies aux control register: 0x02070000 -> 0x3e470001
[    0.000000] L2C: platform provided aux values permit register corruption.
[    0.000000] L2C: DT/platform modifies aux control register: 0x02070000 -> 0x3e470001
[    0.000000] L2C-310 enabling early BRESP for Cortex-A9
[    0.000000] L2C-310: enabling full line of zeros but not enabled in Cortex-A9
[    0.000000] L2C-310 ID prefetch enabled, offset 8 lines
[    0.000000] L2C-310 dynamic clock gating enabled, standby mode enabled
[    0.000000] L2C-310 cache controller enabled, 16 ways, 1024 kB
[    0.000000] L2C-310: CACHE_ID 0x4100c4c8, AUX_CTRL 0x7e470001
[    0.000000] Exynos4x12 clocks: sclk_apll = 1000000000, sclk_mpll = 800000000
[    0.000000]  sclk_epll = 96000000, sclk_vpll = 350000000, arm_clk = 1000000000
[    0.000000] Switching to timer-based delay loop, resolution 41ns
[    0.000000] clocksource: mct-frc: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 79635851949 ns
[    0.000004] sched_clock: 32 bits at 24MHz, resolution 41ns, wraps every 89478484971ns
[    0.000248] Console: colour dummy device 80x30
[    0.000903] console [tty1] enabled
[    0.000928] Calibrating delay loop (skipped), value calculated using timer frequency.. 48.00 BogoMIPS (lpj=240000)
[    0.000961] pid_max: default: 32768 minimum: 301
[    0.001046] Mount-cache hash table entries: 2048 (order: 1, 8192 bytes)
[    0.001069] Mountpoint-cache hash table entries: 2048 (order: 1, 8192 bytes)
[    0.001478] CPU: Testing write buffer coherency: ok
[    0.001790] CPU0: thread -1, cpu 0, socket 10, mpidr 80000a00
[    0.030004] Setting up static identity map for 0x40100000 - 0x40100058
[    0.119992] smp: Bringing up secondary CPUs ...
[    0.200315] CPU1: thread -1, cpu 1, socket 10, mpidr 80000a01
[    0.280298] CPU2: thread -1, cpu 2, socket 10, mpidr 80000a02
[    0.360290] CPU3: thread -1, cpu 3, socket 10, mpidr 80000a03
[    0.360351] smp: Brought up 1 node, 4 CPUs
[    0.360417] SMP: Total of 4 processors activated (192.00 BogoMIPS).
[    0.360435] CPU: All CPU(s) started in SVC mode.
[    0.361227] devtmpfs: initialized
[    0.371920] VFP support v0.3: implementor 41 architecture 3 part 30 variant 9 rev 4
[    0.372168] clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns
[    0.373950] pinctrl core: initialized pinctrl subsystem
[    0.374590] lcd0-power-domain has as child subdomain: tv-power-domain.
[    0.375416] NET: Registered protocol family 16
[    0.377168] DMA: preallocated 256 KiB pool for atomic coherent allocations
[    0.378419] cpuidle: using governor menu
[    0.409143] SCSI subsystem initialized
[    0.409343] usbcore: registered new interface driver usbfs
[    0.409409] usbcore: registered new interface driver hub
[    0.409490] usbcore: registered new device driver usb
[    0.410050] s3c-i2c 13860000.i2c: slave address 0x00
[    0.410080] s3c-i2c 13860000.i2c: bus frequency set to 390 KHz
[    0.410542] s3c-i2c 13860000.i2c: i2c-0: S3C I2C adapter
[    0.410719] s3c-i2c 13870000.i2c: slave address 0x00
[    0.410747] s3c-i2c 13870000.i2c: bus frequency set to 97 KHz
[    0.411065] s3c-i2c 13870000.i2c: i2c-1: S3C I2C adapter
[    0.411207] s3c-i2c 13880000.i2c: slave address 0x00
[    0.411233] s3c-i2c 13880000.i2c: bus frequency set to 97 KHz
[    0.411429] s3c-i2c 13880000.i2c: i2c-2: S3C I2C adapter
[    0.411538] s3c-i2c 138e0000.i2c: slave address 0x00
[    0.411564] s3c-i2c 138e0000.i2c: bus frequency set to 97 KHz
[    0.411876] s3c-i2c 138e0000.i2c: i2c-8: S3C I2C adapter
[    0.412490] Advanced Linux Sound Architecture Driver Initialized.
[    0.413377] clocksource: Switched to clocksource mct-frc
[    0.421266] NET: Registered protocol family 2
[    0.421722] TCP established hash table entries: 8192 (order: 3, 32768 bytes)
[    0.421811] TCP bind hash table entries: 8192 (order: 5, 163840 bytes)
[    0.421964] TCP: Hash tables configured (established 8192 bind 8192)
[    0.422053] UDP hash table entries: 512 (order: 2, 24576 bytes)
[    0.422105] UDP-Lite hash table entries: 512 (order: 2, 24576 bytes)
[    0.422264] NET: Registered protocol family 1
[    0.422620] RPC: Registered named UNIX socket transport module.
[    0.422644] RPC: Registered udp transport module.
[    0.422661] RPC: Registered tcp transport module.
[    0.422678] RPC: Registered tcp NFSv4.1 backchannel transport module.
[    0.423858] futex hash table entries: 1024 (order: 4, 65536 bytes)
[    0.424208] workingset: timestamp_bits=30 max_order=19 bucket_order=0
[    0.430657] NFS: Registering the id_resolver key type
[    0.430706] Key type id_resolver registered
[    0.430724] Key type id_legacy registered
[    0.430767] romfs: ROMFS MTD (C) 2007 Red Hat, Inc.
[    0.431536] bounce: pool size: 64 pages
[    0.431693] Block layer SCSI generic (bsg) driver version 0.4 loaded (major 249)
[    0.431723] io scheduler noop registered
[    0.431740] io scheduler deadline registered
[    0.431877] io scheduler cfq registered (default)
[    0.431897] io scheduler mq-deadline registered
[    0.433431] 125b0000.exynos-usbphy supply vbus not found, using dummy regulator
[    0.439237] dma-pl330 12680000.pdma: Loaded driver for PL330 DMAC-141330
[    0.439270] dma-pl330 12680000.pdma:         DBUFF-32x4bytes Num_Chans-8 Num_Peri-32 Num_Events-32
[    0.441766] dma-pl330 12690000.pdma: Loaded driver for PL330 DMAC-141330
[    0.441798] dma-pl330 12690000.pdma:         DBUFF-32x4bytes Num_Chans-8 Num_Peri-32 Num_Events-32
[    0.442549] dma-pl330 12850000.mdma: Loaded driver for PL330 DMAC-141330
[    0.442579] dma-pl330 12850000.mdma:         DBUFF-64x8bytes Num_Chans-8 Num_Peri-1 Num_Events-32
[    0.494061] Serial: 8250/16550 driver, 4 ports, IRQ sharing disabled
[    0.495894] 13800000.serial: ttySAC0 at MMIO 0x13800000 (irq = 53, base_baud = 0) is a S3C6400/10
[    0.496268] 13810000.serial: ttySAC1 at MMIO 0x13810000 (irq = 54, base_baud = 0) is a S3C6400/10
[    1.267780] console [ttySAC1] enabled
[    1.275320] exynos-hdmi 12d00000.hdmi: Failed to get supply 'vdd': -517
[    1.290270] brd: module loaded
[    1.295375] loop: module loaded
[    1.309140] random: fast init done
[    1.318865] s3c64xx-spi 13930000.spi: spi bus clock parent not specified, using clock at index 0 as parent
[    1.322902] s3c64xx-spi 13930000.spi: number of chip select lines not specified, assuming 1 chip select line
[    1.333776] libphy: Fixed MDIO Bus: probed
[    1.336988] usbcore: registered new interface driver r8152
[    1.342292] usbcore: registered new interface driver asix
[    1.347687] usbcore: registered new interface driver ax88179_178a
[    1.353749] usbcore: registered new interface driver cdc_ether
[    1.359557] usbcore: registered new interface driver smsc75xx
[    1.365304] usbcore: registered new interface driver smsc95xx
[    1.371002] usbcore: registered new interface driver net1080
[    1.376690] usbcore: registered new interface driver cdc_subset
[    1.382552] usbcore: registered new interface driver zaurus
[    1.388139] usbcore: registered new interface driver cdc_ncm
[    1.395179] dwc2 12480000.hsotg: Invalid value 1024 for param g-np-tx-fifo-size
[    1.401043] dwc2 12480000.hsotg: EPs: 16, dedicated fifos, 7808 entries in SPRAM
[    1.409298] ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI) Driver
[    1.414922] ehci-exynos: EHCI EXYNOS driver
[    1.419646] exynos-ehci 12580000.ehci: EHCI Host Controller
[    1.424658] exynos-ehci 12580000.ehci: new USB bus registered, assigned bus number 1
[    1.432518] exynos-ehci 12580000.ehci: irq 51, io mem 0x12580000
[    1.463415] exynos-ehci 12580000.ehci: USB 2.0 started, EHCI 1.00
[    1.464014] usb usb1: New USB device found, idVendor=1d6b, idProduct=0002
[    1.470649] usb usb1: New USB device strings: Mfr=3, Product=2, SerialNumber=1
[    1.477878] usb usb1: Product: EHCI Host Controller
[    1.482710] usb usb1: Manufacturer: Linux 4.10.0-rc5-next-20170125-00050-g0dc3a91a2fba ehci_hcd
[    1.491414] usb usb1: SerialNumber: 12580000.ehci
[    1.496554] hub 1-0:1.0: USB hub found
[    1.499835] hub 1-0:1.0: 3 ports detected
[    1.504425] ohci_hcd: USB 1.1 'Open' Host Controller (OHCI) Driver
[    1.510001] ohci-exynos: OHCI EXYNOS driver
[    1.514852] usbcore: registered new interface driver usb-storage
[    1.530924] usb3503 0-0008: switched to HUB mode
[    1.530999] usb3503 0-0008: usb3503_probe: probed in hub mode
[    1.535979] using random self ethernet address
[    1.540062] using random host ethernet address
[    1.544882] usb0: HOST MAC 7a:d4:f7:e7:93:e8
[    1.548792] usb0: MAC 7a:25:6d:db:b1:9e
[    1.552566] using random self ethernet address
[    1.557007] using random host ethernet address
[    1.561441] g_ether gadget: Ethernet Gadget, version: Memorial Day 2008
[    1.568031] g_ether gadget: g_ether ready
[    1.572014] dwc2 12480000.hsotg: bound driver g_ether
[    1.580371] mousedev: PS/2 mouse device common for all mice
[    1.711692] max77686-rtc max77686-rtc: rtc core: registered max77686-rtc as rtc0
[    1.714380] rtc rtc1: invalid alarm value: 1900-1-2 0:0:0
[    1.718981] s3c-rtc 10070000.rtc: rtc core: registered s3c as rtc1
[    1.725512] i2c /dev entries driver
[    1.732753] s3c2410-wdt 10060000.watchdog: watchdog inactive, reset disabled, irq disabled
[    1.737332] device-mapper: ioctl: 4.35.0-ioctl (2016-06-23) initialised: dm-devel at redhat.com
[    1.748201] sdhci: Secure Digital Host Controller Interface driver
[    1.751299] sdhci: Copyright(c) Pierre Ossman
[    1.756052] s3c-sdhci 12530000.sdhci: clock source 2: mmc_busclk.2 (100000000 Hz)
[    1.763186] s3c-sdhci 12530000.sdhci: Got CD GPIO
[    1.823530] mmc0: SDHCI controller on samsung-hsmmc [12530000.sdhci] using ADMA
[    1.825409] Synopsys Designware Multimedia Card Interface Driver
[    1.831817] dwmmc_exynos 12550000.mmc: IDMAC supports 32-bit address mode.
[    1.838133] dwmmc_exynos 12550000.mmc: Using internal DMA controller.
[    1.844493] dwmmc_exynos 12550000.mmc: Version ID is 240a
[    1.849876] dwmmc_exynos 12550000.mmc: DW MMC controller at irq 110,32 bit host data width,128 deep fifo
[    1.859539] dwmmc_exynos 12550000.mmc: allocated mmc-pwrseq
[    1.864902] usb 1-2: new high-speed USB device number 2 using exynos-ehci
[    1.871688] mmc_host mmc1: card is polling.
[    1.903753] mmc_host mmc1: Bus speed (slot 0) = 50000000Hz (slot req 400000Hz, actual 396825HZ div = 63)
[    1.933547] dwmmc_exynos 12550000.mmc: 1 slots initialized
[    1.934664] s5p-secss 10830000.sss: s5p-sss driver registered
[    1.942516] usbcore: registered new interface driver usbhid
[    1.944707] usbhid: USB HID core driver
[    1.959692] NET: Registered protocol family 10
[    1.960359] Segment Routing with IPv6
[    1.962179] sit: IPv6, IPv4 and MPLS over IPv4 tunneling driver
[    1.968428] NET: Registered protocol family 17
[    1.972486] NET: Registered protocol family 15
[    1.977036] Key type dns_resolver registered
[    1.981461] Registering SWP/SWPB emulation handler
[    1.987135] mmc_host mmc1: Bus speed (slot 0) = 50000000Hz (slot req 300000Hz, actual 297619HZ div = 84)
[    2.013136] [drm] Exynos DRM: using 12c10000.mixer device for DMA mapping operations
[    2.015626] exynos-drm exynos-drm: bound 12c10000.mixer (ops mixer_component_ops)
[    2.022899] exynos-drm exynos-drm: bound 12d00000.hdmi (ops hdmi_component_ops)
[    2.030045] [drm] Supports vblank timestamp caching Rev 2 (21.10.2013).
[    2.036622] [drm] No driver support for vblank timestamp query.
[    2.042549] [drm] Initialized exynos 1.0.0 20110530 for exynos-drm on minor 0
[    2.050968] exynos-bus: new bus device registered: bus_dmc (100000 KHz ~ 400000 KHz)
[    2.053768] usb 1-2: New USB device found, idVendor=0424, idProduct=9730
[    2.053776] usb 1-2: New USB device strings: Mfr=0, Product=0, SerialNumber=0
[    2.056426] smsc95xx v1.0.5
[    2.064078] mmc_host mmc1: Bus speed (slot 0) = 50000000Hz (slot req 200000Hz, actual 200000HZ div = 125)
[    2.084445] exynos-bus: new bus device registered: bus_acp (100000 KHz ~ 267000 KHz)
[    2.091742] exynos-bus: new bus device registered: bus_c2c (100000 KHz ~ 400000 KHz)
[    2.093515] mmc0: new high speed SDHC card at address 0007
[    2.094029] mmcblk0: mmc0:0007 SD16G 14.5 GiB
[    2.095502]  mmcblk0: p1 p2 p3
[    2.113868] exynos-bus: new bus device registered: bus_leftbus (100000 KHz ~ 200000 KHz)
[    2.120680] exynos-bus: new bus device registered: bus_rightbus (100000 KHz ~ 200000 KHz)
[    2.129026] exynos-bus: new bus device registered: bus_display (160000 KHz ~ 200000 KHz)
[    2.137031] exynos-bus: new bus device registered: bus_fsys (100000 KHz ~ 134000 KHz)
[    2.144828] exynos-bus: new bus device registered: bus_peri ( 50000 KHz ~ 100000 KHz)
[    2.149095] smsc95xx 1-2:1.0 eth0: register 'smsc95xx' at usb-12580000.ehci-2, smsc95xx USB 2.0 Ethernet, 5a:46:f5:aa:8d:36
[    2.154191] mmc_host mmc1: Bus speed (slot 0) = 50000000Hz (slot req 100000Hz, actual 100000HZ div = 250)
[    2.173243] exynos-bus: new bus device registered: bus_mfc (100000 KHz ~ 200000 KHz)
[    2.214263] max98090 1-0010: MAX98090 REVID=0x43
[    2.217699] max98090 1-0010: use default 2.8v micbias
[    2.225755] asoc-simple-card sound: HiFi <-> 3830000.i2s mapping ok
[    2.229872] input: gpio_keys as /devices/platform/gpio_keys/input/input0
[    2.266862] max77686-rtc max77686-rtc: setting system clock to 2017-01-27 19:43:23 UTC (1485546203)
[    2.283437] usb 1-3: new high-speed USB device number 3 using exynos-ehci
[    2.473786] usb 1-3: New USB device found, idVendor=0424, idProduct=3503
[    2.474856] usb 1-3: New USB device strings: Mfr=0, Product=0, SerialNumber=0
[    2.482656] hub 1-3:1.0: USB hub found
[    2.486017] hub 1-3:1.0: 3 ports detected
[   55.037205] random: crng init done