Changes

n900: camera: magic bit makes it work

Pavel Machek <pavel@ucw.cz> wrote:

"For camera, I need this patch, otherwise image is deformed (square
instead of proper shape). Unfortunately, I don't have good idea why
that's the case."

https://lists.dyne.org/lurker/message/20200307.114526.7b4baeda.en.html

ARM: n900_defconfig: rename omap2plus_defconfig

ARM: n900_defconfig: update for current kernel

The config file was updated using these commands:
make ARCH=arm n900_defconfig
make ARCH=arm savedefconfig
mv defconfig arch/arm/configs/n900_defconfig

ARM: n900_defconfig: disable lock debugging

These options are supposed to be used by kernel hackers who debug
drivers. Not recommended to be included in distro kernels.

WARNING: enabling CONFIG_DEBUG_LOCK_ALLOC causes LCD to be unusable.
The reason is not yet established.

Kernel hacking  --->
  Lock Debugging (spinlocks, mutexes, etc...)  --->
   [ ] Lock debugging: prove locking correctness    [CONFIG_PROVE_LOCKING]
   [ ] RT Mutex debugging, deadlock detection       [CONFIG_DEBUG_RT_MUTEXES]
   [ ] Spinlock and rw-lock debugging: basic checks [CONFIG_DEBUG_SPINLOCK]
   [ ] Mutex debugging: basic checks                [CONFIG_DEBUG_MUTEXES]
   [ ] Wait/wound mutex debugging: Slowpath testing [CONFIG_DEBUG_WW_MUTEX_SLOWPATH]
   [ ] Lock debugging: detect incorrect freeing ... [CONFIG_DEBUG_LOCK_ALLOC]

ARM: n900_defconfig: disable SMP

We only have one CPU.

Kernel Features  --->
  [ ] Symmetric Multi-Processing  [CONFIG_SMP]

ARM: n900_defconfig: disable DRM

Current PowerVR SGX driver is tied to omapfb.

Device Drivers  --->
  Graphics support  --->
   < > Direct Rendering Manager (XFree86 ... support)  [CONFIG_DRM]

ARM: n900_defconfig: make display work

Device Drivers  --->
  Graphics support  --->
   Frame buffer Devices  --->
    <*> OMAP2+ frame buffer support ---> [CONFIG_FB_OMAP2]
     [ ] DPI support                     [CONFIG_FB_OMAP2_DSS_DPI]
     [ ] HDMI support for OMAP4          [CONFIG_FB_OMAP4_DSS_HDMI]
     [*] SDI support                     [CONFIG_FB_OMAP2_DSS_SDI]
     OMAPFB Panel and Encoder Drivers --->
      <*> Analog TV Connector            [CONFIG_FB_OMAP2_CONNECTOR_ANALOG_TV]
      <*> ACX565AKM Panel                [CONFIG_FB_OMAP2_PANEL_SONY_ACX565AKM]

ARM: n900_defconfig: enable PowerVR SGX

Device Drivers  --->
  Graphics support  --->
   <M> PowerVR Services  [PVR]

ARM: n900_defconfig: enable WiFi

Device Drivers  --->
  Network device support  --->
   Wireless LAN  --->
    [ ] ADMtek devices                   [CONFIG_WLAN_VENDOR_ADMTEK]
    [ ] Atheros/Qualcomm devices         [CONFIG_WLAN_VENDOR_ATH]
    [ ] Atmel devices                    [CONFIG_WLAN_VENDOR_ATMEL]
    [ ] Broadcom devices                 [CONFIG_WLAN_VENDOR_BROADCOM]
    [ ] Cisco devices                    [CONFIG_WLAN_VENDOR_CISCO]
    [ ] Intel devices                    [CONFIG_WLAN_VENDOR_INTEL]
    [ ] Intersil devices                 [CONFIG_WLAN_VENDOR_INTERSIL]
    [ ] Marvell devices                  [CONFIG_WLAN_VENDOR_MARVELL]
    [ ] MediaTek devices                 [CONFIG_WLAN_VENDOR_MEDIATEK]
    [ ] Ralink devices                   [CONFIG_WLAN_VENDOR_RALINK]
    [ ] Realtek devices                  [CONFIG_WLAN_VENDOR_REALTEK]
    [ ] Redpine Signals Inc devices      [CONFIG_WLAN_VENDOR_RSI]
    [ ] STMicroelectronics devices       [CONFIG_WLAN_VENDOR_ST]
    <M> TI wl1251 driver support         [CONFIG_WL1251]
    <M> TI wl1251 SPI support            [CONFIG_WL1251_SPI]
    < > TI wl12xx support                [CONFIG_WL12XX]
    < > TI wl18xx support                [CONFIG_WL18XX]
    < > TI wlcore support                [CONFIG_WLCORE]
    [ ] ZyDAS devices                    [CONFIG_WLAN_VENDOR_ZYDAS]
    [ ] Quantenna wireless cards support [CONFIG_WLAN_VENDOR_QUANTENNA]

ARM: n900_defconfig: set kernel compression mode to LZ4

This one is the fastest.

General setup  --->
  Kernel compression mode (LZ4)  [CONFIG_KERNEL_LZ4]

ARM: n900_defconfig: don't store .config in kernel

Three reasons:
- we are on low memory;
- it's default for current debian kernel config;
- there's no need to store config file in the kernel

General setup  --->
  < > Kernel .config support  [CONFIG_IKCONFIG]

ARM: n900_defconfig: increase kernel log buffer size

Changed from 64KB to 256KB.

General setup  --->
  (18) Kernel log buffer size (16 => 64KB, 17 => 128KB) [CONFIG_LOG_BUF_SHIFT]

ARM: n900_defconfig: disable swap controller (cgroup)

- Reduce kernel memory usage.
- This option is disabled in Debian kernels as well.
- Can be enabled at runtime.

General setup  --->
  Control Group support  --->
   [ ] Swap controller enabled by default  [CONFIG_MEMCG_SWAP_ENABLED]

ARM: n900_defconfig: remove obsolete sysfs syscall

- No longer supported in libc.
- This option is disabled in Debian kernel.

General setup  --->
  Configure standard kernel features (expert users)  --->
   [ ] Sysfs syscall support  [CONFIG_SYSFS_SYSCALL]

ARM: n900_defconfig: select SLUB as slab allocator

This one is stated to be the default by kernel documentation.

Check this link for some background:
https://stackoverflow.com/questions/15470560/what-to-choose-between-slab-and-slub-allocator-in-linux-kernel

General setup  --->
  Choose SLAB allocator (SLUB (Unqueued Allocator))  [CONFIG_SLUB]

ARM: n900_defconfig: disable ARMv6

Nokia N900 is based on ARMv7.

System Type  --->
  Multiple platform selection  --->
   [ ] ARMv6 based platforms (ARM11)  [ARCH_MULTI_V6]

ARM: n900_defconfig: remove excessive systems

We only need TI OMAP3 here.

System Type  --->
  TI OMAP/AM/DM/DRA Family  --->
   [ ] TI OMAP4   [ARCH_OMAP4]
   [ ] TI OMAP5   [SOC_OMAP5]
   [ ] TI AM33XX  [SOC_AM33XX]
   [ ] TI AM43x   [SOC_AM43XX]
   [ ] TI DRA7XX  [SOC_DRA7XX]

ARM: n900_defconfig: clean up SoC specific features

N900 is based on OMAP3430.

System Type  --->
  TI OMAP/AM/DM/DRA Family  --->
   TI OMAP2/3/4 Specific Features --->
    [ ] TI81XX support              [SOC_TI81XX]
    [ ] OMAP3517/ AM3517 EVM board  [MACH_OMAP3517EVM]
    [ ] OMAP3 Pandora               [MACH_OMAP3_PANDORA]

ARM: n900_defconfig: clean up common clock framework

Device Drivers  --->
  Common Clock Framework  --->
   < > Clock driver for dm814x ADPLL  [CONFIG_COMMON_CLK_TI_ADPLL]

ARM: n900_defconfig: disable extraneous erratas

N900 is based on Cortex-A8. Erratas below are for Cortex-A9.

System Type  --->
  [ ] ARM errata: TLBIASIDIS and TLBIMVAIS ...  [CONFIG_ARM_ERRATA_720789]
  [ ] ARM errata: possible faulty MMU trans...  [CONFIG_ARM_ERRATA_754322]
  [ ] ARM errata: A data cache maintenance ...  [CONFIG_ARM_ERRATA_775420]

ARM: n900_defconfig: disable L2x0 PrimeCell

I didn't find mentions of this controller to be used in OMAP3430/ARMv7.
And its "Selected by" section doesn't show anything interesting for us.

System Type  --->
  [ ] Enable the L2x0 outer cache controller  [CONFIG_CACHE_L2X0]

ARM: n900_defconfig: disable PCI

Obviously N900 doesn't have a PCI controller.

Device Drivers  --->
  [ ] PCI support  [CONFIG_PCI]

ARM: n900_defconfig: set preemption model to "Desktop"

It should give good performance and responsibility at the same time.

General setup  --->
  Preemption Model (Voluntary Kernel Preemption (Desktop))  [CONFIG_PREEMPT_VOLUNTARY]

ARM: n900_defconfig: optimize kernel for size

General setup  --->
  Compiler optimization level (Optimize for size)  [CONFIG_CC_OPTIMIZE_FOR_SIZE]

ARM: n900_defconfig: build in Thumb-2 mode

This should optimize kernel size and performance using ARMv7 thumb2
instructions set.

Kernel Features  --->
  [*] Compile the kernel in Thumb-2 mode  [CONFIG_THUMB2_KERNEL]

ARM: n900_defconfig: disable Thumb-2 bug workaround

Seems like the bug was fixed in 2011.
Check https://bugs.launchpad.net/binutils-linaro/+bug/725126

Kernel Features  --->
  [ ] Work around buggy Thumb-2 short branch relocations in gas

ARM: n900_defconfig: set timer frequency to 200 Hz

This is default in Debian kernel.

Kernel Features  --->
  Timer frequency (200 Hz)  [HZ_200]

ARM: n900_defconfig: disable highmem interaction code

We only have 256M of RAM (and some swap possible).
The code for interaction with 4G+ memory is excessive.

Kernel Features  --->
  [ ] Allocate 2nd-level pagetables from highmem  [CONFIG_HIGHPTE]

ARM: n900_defconfig: disable ATAGS

We use device tree blob attached to the kernel for booting.
Remove ATAGS support to reduce the kernel code.

Boot options  --->
  [ ] Support for the traditional ATAGS boot data passing  [CONFIG_ATAGS]

ARM: n900_defconfig: disable SATA/PATA

N900 doesn't have such controller.

Device Drivers  --->
  < > Serial ATA and Parallel ATA drivers (libata)  [CONFIG_ATA]

ARM: n900_defconfig: clean up 'Power supply'

Device Drivers  --->
  Power supply class support  --->
   < > Motorola CPCAP PMIC battery driver  [CONFIG_BATTERY_CPCAP]
   < > BQ27xxx HDQ support                 [CONFIG_BATTERY_BQ27XXX_HDQ]
   < > CPCAP PMIC Charger Driver           [CONFIG_CHARGER_CPCAP]
   < > OMAP TWL4030 BCI charger driver     [CONFIG_CHARGER_TWL4030]
   < > TI BQ24190 battery charger driver   [CONFIG_CHARGER_BQ24190]
   < > TI BQ24735 battery charger support  [CONFIG_CHARGER_BQ24735]

ARM: n900_defconfig: clean up 'Keyboards'

Device Drivers  --->
  Input device support  --->
   Keyboards  --->
    < > AT keyboard                        [CONFIG_KEYBOARD_ATKBD]
    < > GPIO driven matrix keypad support  [CONFIG_KEYBOARD_MATRIX]
    < > TI OMAP4+ keypad support           [CONFIG_KEYBOARD_OMAP4]

ARM: n900_defconfig: clean up 'Touchscreens'

Device Drivers  --->
  Input device support  --->
   Touchscreens  --->
    < > ADS7846/TSC2046/AD7873 ...   [CONFIG_TOUCHSCREEN_ADS7846]
    < > Atmel mXT I2C Touchscreen    [CONFIG_TOUCHSCREEN_ATMEL_MXT]
    < > EDT FocalTech FT5x06 I2C ... [CONFIG_TOUCHSCREEN_EDT_FT5X06]
    < > TI Touchscreen Interface     [CONFIG_TOUCHSCREEN_TI_AM335X_TSC]
    < > PIXCIR I2C touchscreens      [CONFIG_TOUCHSCREEN_PIXCIR]
    < > TSC2004 based touchscreens   [CONFIG_TOUCHSCREEN_TSC2004]
    < > TSC2007 based touchscreens   [CONFIG_TOUCHSCREEN_TSC2007]

ARM: n900_defconfig: clean up 'Real Time Clock'

Device Drivers  --->
  Real Time Clock  --->
   < > Dallas/Maxim DS1307/37/38/39/40/41, ...   [CONFIG_RTC_DRV_DS1307]
   < > ST M41T62/65/M41T80/81/82/83/84/85/87 ... [CONFIG_RTC_DRV_M41T80]
   < > TI Palmas RTC driver                      [CONFIG_RTC_DRV_PALMAS]
   < > TI OMAP Real Time Clock                   [CONFIG_RTC_DRV_OMAP]
   < > Motorola CPCAP RTC                        [CONFIG_RTC_DRV_CPCAP]

ARM: n900_defconfig: compile RTC driver in kernel

This prevents wrong timestamps on early kernel boot
time and removes the need to have a service/udev rule
running 'hwclock --hctosys'. It also allows to avoid
unnecessary fsck runs at boot time.

Without this change, kernel options RTC_HCTOSYS=y and
RTC_HCTOSYS_DEVICE=rtc0 have no effect except errors
in the logs.

Device Drivers  --->
  Real Time Clock  --->
   <*> TI TWL4030/TWL5030/TWL6030/TPS659x0  [CONFIG_RTC_DRV_TWL4030]

ARM: n900_defconfig: compile watchdog drivers in kernel

This should prevent occasional shut downs on slow booting.

Device Drivers  --->
  Watchdog Timer Support  --->
   <*> OMAP Watchdog     [CONFIG_OMAP_WATCHDOG]
   <*> TWL4030 Watchdog  [CONFIG_TWL4030_WATCHDOG]

ARM: n900_defconfig: enable ZRAM

Memory Management options  --->
  <M> Memory allocator for compressed pages         [CONFIG_ZSMALLOC]
  [*]   Use page table mapping to access object ... [CONFIG_PGTABLE_MAPPING]
Device Drivers  --->
  Block devices  --->
    <M> Compressed RAM block device support         [CONFIG_ZRAM]

ARM: n900_defconfig: enable ZSWAP

Usage: https://wiki.archlinux.org/index.php/zswap

Memory Management options  --->
  [*] Enable frontswap to cache swap pages if tmem is ... [CONFIG_FRONTSWAP]
  [*] Compressed cache for swap pages (EXPERIMENTAL)      [CONFIG_ZSWAP]
  <M> Low (Up to 2x) density storage for compressed pages [CONFIG_ZBUD]
  <M> Up to 3x density storage for compressed pages       [CONFIG_Z3FOLD]

ARM: n900_defconfig: change cmdline 'console' param

Set console=tty1 for default kernel command line. This allows boot
messages to be displayed when kernel parameters are omitted. I.e.
if you do "run sdboot" from U-Boot console.

Boot options  --->
  Default kernel command string  [CONFIG_CMDLINE]

ARM: n900_defconfig: add common filesystems

File systems  --->
  <M> Reiserfs support                         [CONFIG_REISERFS_FS]
  <M> XFS filesystem support                   [CONFIG_XFS_FS]
  <M> Btrfs filesystem support                 [CONFIG_BTRFS_FS]
  <M> FUSE (Filesystem in Userspace) support   [CONFIG_FUSE_FS]
  <M> Overlay filesystem support               [CONFIG_OVERLAY_FS]
  CD-ROM/DVD Filesystems  --->
   <M> ISO 9660 CDROM file system support      [CONFIG_ISO9660_FS]
   <M> UDF file system support                 [CONFIG_UDF_FS]
  DOS/FAT/NT Filesystems  --->
   <M> MSDOS fs support                        [CONFIG_MSDOS_FS]
   <M> VFAT (Windows-95) fs support            [CONFIG_VFAT_FS]
   <M> NTFS file system support                [CONFIG_NTFS_FS]
  Miscellaneous filesystems  --->
   <M> Journalling Flash File System v2 ...    [CONFIG_JFFS2_FS]
   <M> Compressed ROM file system support ...  [CONFIG_CRAMFS]
   <M> SquashFS 4.0 - Squashed file system ... [CONFIG_SQUASHFS]
  Network File Systems  --->
   <M> NFS client support  [CONFIG_NFS_FS]
   <M> SMB3 and CIFS support (advanced ... )   [CONFIG_CIFS]

ARM: n900_defconfig: filesystems native language

File systems  --->
  DOS/FAT/NT Filesystems  --->
   (ascii) Default iocharset for FAT        [CONFIG_FAT_DEFAULT_IOCHARSET]
   [*] Enable FAT UTF-8 option by default   [CONFIG_FAT_DEFAULT_UTF8]
  Native language support  --->
   (utf8) Default NLS Option                [CONFIG_NLS_DEFAULT]
   <M> Codepage 437 (United States, Canada) [CONFIG_NLS_CODEPAGE_437]
   <M> ASCII (United States)                [CONFIG_NLS_ASCII]
   <M> NLS ISO 8859-1  (Latin 1; ...)       [CONFIG_NLS_ISO8859_1]
   <M> NLS UTF-8                            [CONFIG_NLS_UTF8]

ARM: n900_defconfig: systemd related options

The source: https://github.com/systemd/systemd/blob/master/README

General setup  --->
  Control Group support  --->
   CPU controller  --->
    [ ] Group scheduling for SCHED_RR/FIFO     [CONFIG_RT_GROUP_SCHED]
  Namespaces support  --->
   [*] User namespace                          [CONFIG_USER_NS]
  [*] Checkpoint/restore support               [CONFIG_CHECKPOINT_RESTORE]
Enable the block layer  --->
  [*] Block layer SG support v4                [CONFIG_BLK_DEV_BSG]
Device Drivers  --->
  Generic Driver Options  --->
   [ ] Support for uevent helper               [CONFIG_UEVENT_HELPER]
File systems  --->
  [*] Ext4 POSIX Access Control Lists          [CONFIG_EXT4_FS_POSIX_ACL]
  [*] XFS POSIX ACL support                    [CONFIG_XFS_POSIX_ACL]
  [*] Btrfs POSIX Access Control Lists         [CONFIG_BTRFS_FS_POSIX_ACL]
  {*} Kernel automounter support (...)         [AUTOFS_FS]
Cryptographic API  --->
  {*} HMAC support                             [CONFIG_CRYPTO_HMAC]
  {*} SHA224 and SHA256 digest algorithm       [CONFIG_CRYPTO_SHA256]
  <*> User-space interface for hash algorithms [CONFIG_CRYPTO_USER_API_HASH]

ARM: n900_defconfig: PowerTOP related options

The source: https://wiki.gentoo.org/wiki/PowerTOP

CPU Power Management  --->
  CPU Frequency scaling  --->
   [*] CPU frequency transition statistics   [CONFIG_CPU_FREQ_STAT]
Kernel hacking  --->
  Tracers  --->
   [*] Support for tracing block IO actions  [CONFIG_BLK_DEV_IO_TRACE]

ARM: n900_defconfig: disable ethernet drivers

This removes some drivers compiled in kernel.
So the kernel will occupy less memory.

Device Drivers  --->
  Network device support  --->
   [ ] Ethernet driver support  [CONFIG_ETHERNET]

ARM: n900_defconfig: compile PHY devices drivers as modules

Remove drivers from kernel, so the kernel will occupy less memory.

Device Drivers  --->
  Network device support  --->
   {M} PHY Device support and infrastructure  [CONFIG_PHYLIB]

ARM: n900_defconfig: enable nokia modem

Device Drivers  --->
  HSI support  --->
   <M> CMT speech                [CONFIG_CMT_SPEECH]
   <M> Nokia Modem               [CONFIG_NOKIA_MODEM]
   <M> HSI/SSI character driver  [CONFIG_HSI_CHAR]

ARM: n900_defconfig: enable accelerometer

Device Drivers  --->
  Misc devices  --->
   <M> STMicroeletronics LIS3LV02Dx three-axis ...  [CONFIG_SENSORS_LIS3_I2C]

ARM: n900_defconfig: change compiler debug options

Set these options in similar way to Debian kernel.

Kernel hacking  --->
  Compile-time checks and compiler options  --->
   [ ] Produce split debuginfo in .dwo files         [CONFIG_DEBUG_INFO_SPLIT]
   [ ] Generate dwarf4 debuginfo                     [CONFIG_DEBUG_INFO_DWARF4]
   [*] Strip assembler-generated symbols during link [CONFIG_STRIP_ASM_SYMS]

ARM: n900_defconfig: disable initramfs/initrd

We don't use initrd for booting, disable it to save memory.

General setup  --->
  [ ] Initial RAM filesystem and RAM disk ...  [CONFIG_BLK_DEV_INITRD]

ARM: n900_defconfig: enable crypto accelerators

Cryptographic API  --->
  Hardware crypto devices  --->
   <M> Support for OMAP crypto HW accelerators  [CONFIG_CRYPTO_DEV_OMAP]
   <M>   Support for OMAP MD5/SHA1/SHA2 hw ...  [CONFIG_CRYPTO_DEV_OMAP_SHAM]
   <M>   Support for OMAP AES hw engine         [CONFIG_CRYPTO_DEV_OMAP_AES]
   <M>   Support for OMAP DES/3DES hw engine    [CONFIG_CRYPTO_DEV_OMAP_DES]

ARM: n900_defconfig: enable thermal driver

Device Drivers  --->
  Generic Thermal sysfs driver  --->
   Texas Instruments thermal drivers  --->
    [*]   Texas Instruments OMAP3 thermal support  [CONFIG_OMAP3_THERMAL]

ARM: n900_defconfig: enable light sensor

Device Drivers  --->
  Industrial I/O support  --->
   Light sensors  --->
    <M> TAOS TSL2560, TSL2561, TSL2562 and TSL2563 ... [CONFIG_SENSORS_TSL2563]

ARM: n900_defconfig: analog to digital converters

Device Drivers  --->
  Industrial I/O support  --->
   Analog to digital converters  --->
    < > Motorola CPCAP PMIC ADC driver           [CONFIG_CPCAP_ADC]
    < > TI's AM335X ADC driver                   [CONFIG_TI_AM335X_ADC]
    <M> TWL4030 MADC (Monitoring A/D Converter)  [CONFIG_TWL4030_MADC]

ARM: n900_defconfig: enable radio driver

Device Drivers  --->
  Multimedia support  --->
   [*] AM/FM radio receivers/transmitters support [CONFIG_MEDIA_RADIO_SUPPORT]
   Radio Adapters  --->
    <M> Silicon Labs Si4713 FM Radio with RDS ... [CONFIG_RADIO_SI4713]
    <M>   Silicon Labs Si4713 FM Radio ...        [CONFIG_PLATFORM_SI4713]

ARM: n900_defconfig: enable bluetooth radio

Device Drivers  --->
  [*] Staging drivers  --->                        [CONFIG_STAGING]
   [*] Media staging drivers  --->                 [CONFIG_STAGING_MEDIA]
    <M> Broadcom BCM2048 FM Radio Receiver support [CONFIG_I2C_BCM2048]

ARM: n900_defconfig: disable TV tuners

Device Drivers  --->
  Multimedia support  --->
   Customize TV tuners  --->
      [ DISABLE ALL ]

ARM: n900_defconfig: enable front LED

Device Drivers  --->
  LED Support  --->
   <M> LED Support for TI/National LP5523/55231 LED ... [CONFIG_LEDS_LP5523]

ARM: n900_defconfig: enable flash LED

Device Drivers  --->
  Multimedia support  --->
   I2C Encoders, decoders, sensors and other helper chips  --->
    <M> ADP1653 flash support  [CONFIG_VIDEO_ADP1653]

ARM: n900_defconfig: enable front webcam

Device Drivers  --->
  Multimedia support  --->
   I2C Encoders, decoders, sensors and other helper chips  --->
    <M> SMIA++/SMIA sensor support  [CONFIG_VIDEO_SMIAPP]

ARM: n900_defconfig: enable back camera

Device Drivers  --->
  Multimedia support  --->
   I2C Encoders, decoders, sensors and other helper chips  --->
    <M> AD5820 lens voice coil support  [CONFIG_VIDEO_AD5820]
    <M> ET8EK8 camera sensor support    [CONFIG_VIDEO_ET8EK8]

ARM: n900_defconfig: expose thermal sensors as hwmon device

Device Drivers  --->
  <*> Hardware Monitoring support              [CONFIG_HWMON]
  Generic Thermal sysfs driver  --->
   [*] Expose thermal sensors as hwmon device  [CONFIG_THERMAL_HWMON]

ARM: n900_defconfig: compile keyboard driver into kernel

Device Drivers  --->
 Input device support  --->
  Keyboards  --->
   <*> TI TWL4030/TWL5030/TPS659x0 keypad support [CONFIG_KEYBOARD_TWL4030]

ARM: n900_defconfig: enable in-kernel .config

Reason: asked by Wizzup in #maemo-leste IRC channel.

This partially reverts commit "ARM: n900_defconfig: don't store .config
in kernel"

General setup  --->
  <M> Kernel .config support                 [CONFIG_IKCONFIG]
  [*]   Enable access to .config through ... [CONFIG_IKCONFIG_PROC]

ARM: n900_defconfig: enable vibrator support

Device Drivers  --->
  Input device support  --->
   Miscellaneous devices  --->
    <M> Support for TWL4030 Vibrator  [INPUT_TWL4030_VIBRA]

ARM: n900_defconfig: enable NAT/masq networking

https://github.com/maemo-leste/bugtracker/issues/248

Networking support  --->
  Networking options  --->
   Network packet filtering framework (Netfilter)  --->
    Core Netfilter Configuration  --->
     <M> Netfilter connection tracking support [CONFIG_NF_CONNTRACK]
    IP: Netfilter Configuration  --->
     <M> IP tables support (required for ...)  [CONFIG_IP_NF_IPTABLES]
     <M>   iptables NAT support                [CONFIG_IP_NF_NAT]
     <M>     MASQUERADE target support         [CONFIG_IP_NF_TARGET_MASQUERADE]

ARM: n900_defconfig: enable TUN/TAP driver

https://github.com/maemo-leste/bugtracker/issues/295

Device Drivers  --->
  Network device support  --->
   <M> Universal TUN/TAP device driver support  [CONFIG_TUN]

ARM: n900_defconfig: enable F2FS support

See: https://github.com/maemo-leste/bugtracker/issues/313

File systems  --->
  <*> F2FS filesystem support  [CONFIG_F2FS_FS]

ARM: n900_defconfig: compile in btrfs driver

https://github.com/maemo-leste/bugtracker/issues/313#issuecomment-584620955

File systems  --->
  <*> Btrfs filesystem support  [CONFIG_BTRFS_FS]

debian: preserve /debian/ on 'make clean'

debian: remove /debian/ from .gitignore

debian: fill /debian/ directory with content

debian: use linux native scripts for packaging

Packages added:
 - linux-image-n900-dbg
 - linux-headers-n900

This should allow to build kernel modules out of tree.

Update debian/changelog (5.0.5-1)

debian: fix linux-headers-n900 when crossbuilding

Build kernel related binaries in target architecture format after cross
building. This allows to run DKMS on target device successfully.

debian: add gbp.conf needed by jenkins-debian-glue

debian: update README for default config management

debian: rules: fix warning: 'build-arch' is missing

Update debian/changelog (5.0.5-2)

Update debian/changelog (5.0.5-3)

Update debian/changelog (5.0.7-1)

Update debian/changelog (5.0.9-1)

Update debian/changelog (5.0.14-1)

Update debian/changelog (5.1-1)

Update debian/changelog (5.1.21-1)

debian/README: add instructions for cross building

debian/rules: replace variables with proper names

See dpkg-architecture(1) and
https://wiki.debian.org/CrossBuildPackagingGuidelines

debian: change source format to '3.0 (native)'

We don't use quilt patches. Having '3.0 (quilt)' can confuse users and
build system when additional patches/configuration changes are applied
to the same kernel version.

Update debian/changelog (5.1.21.1)

Update debian/changelog (5.1.21.2)

Update debian/changelog (5.1.21.3)