This doesn't have any benefit apart from saving a small amount of memory
when it is disabled. The ifdef hackery in the code makes it dirty
unnecessarily.

Clean it up by removing the Kconfig option completely. Few defconfigs
are also updated and CONFIG_CPU_FREQ_STAT_DETAILS is replaced with
CONFIG_CPU_FREQ_STAT now in them, as users wanted stats to be enabled.
Signed-off-by: NViresh Kumar <viresh.kumar@linaro.org>
Acked-by: NGregory CLEMENT <gregory.clement@free-electrons.com>
Reviewed-by: NChanwoo Choi <cw00.choi@samsung.com>
Acked-by: NKrzysztof Kozlowski <krzk@kernel.org>
Signed-off-by: NRafael J. Wysocki <rafael.j.wysocki@intel.com>

Exynos5 SoCs have a General SCALER (GSCALER) IP block that can be used
to do video streams scaling and color space conversions by hardware.
Enable support for its driver as a module so the GSCALER can be tested.
Signed-off-by: NJavier Martinez Canillas <javier@osg.samsung.com>
Signed-off-by: NKrzysztof Kozlowski <krzk@kernel.org>

The Exynos MIPI driver does not work anymore (it is board file only) so
it is removed.  Remove also config options.

Cc: Inki Dae <inki.dae@samsung.com>
Cc: Donghwa Lee <dh09.lee@samsung.com>
Cc: Kyungmin Park <kyungmin.park@samsung.com>
Cc: Tomi Valkeinen <tomi.valkeinen@ti.com>
Signed-off-by: NKrzysztof Kozlowski <k.kozlowski@samsung.com>
Signed-off-by: NTomi Valkeinen <tomi.valkeinen@ti.com>

The schedutil CPUFreq governor could be built as a module but the change
"cpufreq / sched: Pass flags to cpufreq_update_util()" made it
non-modular so attempting to enable as module leads to a warning:

warning: symbol value 'm' invalid for CPU_FREQ_GOV_SCHEDUTIL
Signed-off-by: NJavier Martinez Canillas <javier@osg.samsung.com>
Signed-off-by: NKrzysztof Kozlowski <krzk@kernel.org>

Systemd already supports seccomp.  It seems some distros are building
systemd with seccomp, e.g. Arch on ARM, thus leading to boot errors:

systemd-logind.service: Failed at step SECCOMP spawning /usr/lib/systemd/systemd-logind: Invalid argument
Signed-off-by: NKrzysztof Kozlowski <k.kozlowski@samsung.com>
Reviewed-by: NJavier Martinez Canillas <javier@osg.samsung.com>

PM_DEBUG and PM_ADVANCED_DEBUG bring some information useful for
development and they should not cause any significant overhead.  Enable
them in default configuration so debugging would be slightly easier.
Signed-off-by: NKrzysztof Kozlowski <k.kozlowski@samsung.com>
Reviewed-by: NJavier Martinez Canillas <javier@osg.samsung.com>
Acked-by: NKukjin Kim <kgene@kernel.org>

This patch enables the bus frequency scaling driver with devfreq and
devfreq-event framework.  Devfreq is already supported on Odroid U3/XU3,
Trats2 and Rinato/Monk boards.
Signed-off-by: NChanwoo Choi <cw00.choi@samsung.com>
Reviewed-by: NJavier Martinez Canillas <javier@osg.samsung.com>
Reviewed-by: NKrzysztof Kozlowski <k.kozlowski@samsung.com>
[k.kozlowski: Don't enable symbols already selected, adjust commit msg]
Signed-off-by: NKrzysztof Kozlowski <k.kozlowski@samsung.com>

The Virtual Video Test Driver can be used to emulate video capture and
output devices so it's very useful for testing. Since is not necessary
to boot, can be enabled as module to avoid increasing the kernel size.
Signed-off-by: NJavier Martinez Canillas <javier@osg.samsung.com>
Signed-off-by: NKrzysztof Kozlowski <k.kozlowski@samsung.com>

Save defconfig on next-20160602. Most of changes are just re-ordering of
symbols.  Removed symbols:
 - FHANDLE (default y),
 - THERMAL, EXYNOS_THERMAL (selected by ARCH_EXYNOS),
 - CHROME_PLATFORMS (selected by MFD_CROS_EC),
 - EXT4_FS (selected by EXT3_FS)
 - SND_SOC_ODROIDX2 (obsolete since commit ee12a817 ("ASoC: samsung:
   Remove unused Odroid x2/u3 machine driver"), replaced with
   SND_SIMPLE_CARD).

Cc: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: NKrzysztof Kozlowski <k.kozlowski@samsung.com>
Acked-by: NArnd Bergmann <arnd@arndb.de>
Reviewed-by: NSylwester Nawrocki <s.nawrocki@samsung.com>
Reviewed-by: NJavier Martinez Canillas <javier@osg.samsung.com>

Exynos SoCs have a Multi Format Video Hardware Codec (MFC) IP block that
can be used to {en,de}code video streams by hardware. Enable support for
its driver as a module so the MFC can be tested.
Signed-off-by: NJavier Martinez Canillas <javier@osg.samsung.com>
Signed-off-by: NKrzysztof Kozlowski <k.kozlowski@samsung.com>

There are a bunch of media platform drivers under drivers/media/platform/
that are for Samsung SoCs but are not being built with exynos_defconfig.

This patch enables them as a module to improve build coverage for these
drivers and also to allow people use them with proper hardware if modules
are installed. The S5P MFC driver wasn't enabled since it fails to probe.

Only the boolean Kconfig symbols are enabled as built-in, since drivers
are not critical and also to keep the kernel binary image size as small
as possible.
Signed-off-by: NJavier Martinez Canillas <javier@osg.samsung.com>
Reviewed-by: NKrzysztof Kozlowski <k.kozlowski@samsung.com>
Signed-off-by: NKrzysztof Kozlowski <k.kozlowski@samsung.com>

Disable big.LITTLE switcher in order to allow automatic usage of
cpufreq-dt driver on Exynos542x/Exynos5800 SoCs based boards.

This change should not cause any problems as arm_big_little[_dt]
driver (which is using big.LITTLE switcher support to do the "real"
big.LITTLE switching work) is not used on any Exynos SoC based
board currently.
Signed-off-by: NBartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Tested-by: NMarkus Reichl <m.reichl@fivetechno.de>
Reviewed-by: NJavier Martinez Canillas <javier@osg.samsung.com>
Tested-by: NJavier Martinez Canillas <javier@osg.samsung.com>
Reviewed-by: NAnand Moon <linux.amoon@gmail.com>
Tested-by: NAnand Moon <linux.amoon@gmail.com>
Reviewed-by: NKrzysztof Kozlowski <k.kozlowski@samsung.com>
Signed-off-by: NKrzysztof Kozlowski <k.kozlowski@samsung.com>

The samsung-keypad driver is implicitly selected by ARCH_EXYNOS4 (why?),
but this fails if CONFIG_INPUT is a loadable module:

drivers/input/built-in.o: In function `samsung_keypad_remove':
drivers/input/keyboard/samsung-keypad.c:461: undefined reference to `input_unregister_device'
drivers/input/built-in.o: In function `samsung_keypad_irq':
drivers/input/keyboard/samsung-keypad.c:137: undefined reference to `input_event'
drivers/input/built-in.o: In function `samsung_keypad_irq':
include/linux/input.h:389: undefined reference to `input_event'
drivers/input/built-in.o: In function `samsung_keypad_probe':
drivers/input/keyboard/samsung-keypad.c:358: undefined reference to `devm_input_allocate_device'
drivers/input/built-in.o:(.debug_addr+0x34): undefined reference to `input_set_capability'

This removes the 'select' as suggested by Krzysztof Kozlowski and
instead enables the driver from the defconfig files.

The problem does not happen on mainline kernels, as we don't normally
build built-in input drivers when CONFIG_INPUT=m, but I am experimenting
with a patch to change this, and the samsung keypad driver showed up
as one example that was silently broken before.
Signed-off-by: NArnd Bergmann <arnd@arndb.de>
Link: https://lkml.org/lkml/2016/2/14/55Signed-off-by: NKrzysztof Kozlowski <k.kozlowski@samsung.com>

Currently only the ondemand and performance CPUFreq policy governors are
enabled in the Exynos defconfig. But the other governors are also useful
for some cases, enable them to allow users change the default if needed.

The options are enabled as module to keep the kernel image size minimal.
Signed-off-by: NJavier Martinez Canillas <javier@osg.samsung.com>
Signed-off-by: NKrzysztof Kozlowski <k.kozlowski@samsung.com>

The Exynos4412-based Trats2 board has Asahi Kasei AK 3-Axis
Magnetometer, CM36651 proximity/ambient light sensor, MMS114 touchscreen
and Wolfson Microelectronics WM1811 CODEC. Enable them in defconfig to
get some testing coverage and use its features.
Signed-off-by: NKrzysztof Kozlowski <k.kozlowski@samsung.com>
Reviewed-by: NJavier Martinez Canillas <javier@osg.samsung.com>

The driver has been removed so the Kconfig symbol is not valid anymore.
Signed-off-by: NJavier Martinez Canillas <javier@osg.samsung.com>
Reviewed-by: NKrzysztof Kozlowski <k.kozlowski@samsung.com>
Reviewed-by: NAndi Shyti <andi.shyti@samsung.com>
Signed-off-by: NKrzysztof Kozlowski <k.kozlowski@samsung.com>

The Exynos SoC provides a Security SubSystem block for accelerating some
cryptographic operations. Enable the driver for it - s5p-secss to
utilize the hardware acceleration.

Currently the s5p-secss driver supports AES in CBC and ECB modes.
However on Odroid XU4 (Exynos5422) and Trats2 (Exynos4412) boards this
change introduces one booting error (because of unaligned buffers):

	alg: skcipher: encryption failed on chunk test 1 for ecb-aes-s5p: ret=22

The cbc-aes-s5p properly registers itself and passes self-tests.
Signed-off-by: NKrzysztof Kozlowski <k.kozlowski@samsung.com>
Reviewed-by: NAnand Moon <linux.amoon@gmail.com>
Reviewed-by: NJavier Martinez Canillas <javier@osg.samsung.com>

Enable the kernel NEON mode and asm/NEON accelerated crypto algorithms
which should bring performance benefits on Exynos SoCs. Enable these as
modules because they are optional, not essential anyhow for platform
booting nor related directly to Exynos Soc. All accelerated algorithms
pass booting self-tests on Odroid XU4 (Exynos5422) and Trats2 (Exynos4412).

Additionally enable cpufreq statistics as they are useful for debugging.
Signed-off-by: NKrzysztof Kozlowski <k.kozlowski@samsung.com>
Reviewed-by: NAnand Moon <linux.amoon@gmail.com>
Reviewed-by: NJavier Martinez Canillas <javier@osg.samsung.com>

Set following options to a value recommended by systemd (which also
matches the multi_v7 deconfig):
1. Enable AUTOFS4_FS - for systemd.automount [0];
2. Enable BLK_DEV_BSG - SG v4 for recend udev [0][1];
3. Disable UEVENT_HELPER_PATH - legacy hook for hotplug, forked for each
   uevent, slows down booting [0];

[0] http://cgit.freedesktop.org/systemd/systemd/tree/README
[1] http://patchwork.ozlabs.org/patch/47921/Signed-off-by: NKrzysztof Kozlowski <k.kozlowski@samsung.com>
Reviewed-by: NJavier Martinez Canillas <javier@osg.samsung.com>

NFS client is already enabled (NFS_FS) and by default it enables clients
for version 2 and 3. Enable explicitly the version 4 client to utilize
the newer protocol.

The NFS client is especially useful for testing kernel in automated
environments (network boot with network file system).
Signed-off-by: NKrzysztof Kozlowski <k.kozlowski@samsung.com>
Reviewed-by: NJavier Martinez Canillas <javier@osg.samsung.com>

This patch enables drivers needed to get Exynos 4210 Universal C210 board
working: MAX8998 MFD and regulators, GPIO-based bit-bang SPI, Exynos DRM
FIMD parallel output and Samsung LD9040 RGB panel.
Signed-off-by: NMarek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: NKrzysztof Kozlowski <k.kozlowski@samsung.com>

Enable support for:
1. Haptic motor driver on Trats2 board (Maxim 77693) and Note 4
   (Maxim 77843);
2. LED driver on Trats2 board (Maxim 77693).
Signed-off-by: NKrzysztof Kozlowski <k.kozlowski@samsung.com>
Reviewed-by: NJavier Martinez Canillas <javier@osg.samsung.com>

Enable support for Maxim 8997 Multi Functional Device present on Trats and
Origen boards by toggling on drivers: charger, haptic motor,
LED, RTC and extcon.

This allows to test and usage of these boards with exynos config.
Signed-off-by: NKrzysztof Kozlowski <k.kozlowski@samsung.com>
Reviewed-by: NJavier Martinez Canillas <javier@osg.samsung.com>

Mixer driver is selected by CONFIG_DRM_EXYNOS_HDMI option. Since Exynos5433
HDMI does not require Mixer. There will be separate options to select Mixer
and HDMI. Adding new option to defconfig before Kconfig will allow to keep
bisectability.
Signed-off-by: NAndrzej Hajda <a.hajda@samsung.com>
Reviewed-by: NKrzysztof Kozlowski <k.kozlowski@samsung.com>
Acked-by: NKrzysztof Kozlowski <k.kozlowski@samsung.com>
Signed-off-by: NInki Dae <inki.dae@samsung.com>

DesignWare MMC Controller's transfer mode should be decided
at runtime instead of compile-time. So we remove this config
option and read dw_mmc's register to select DMA master.
Signed-off-by: NShawn Lin <shawn.lin@rock-chips.com>
Acked-by: NKrzysztof Kozlowski <k.kozlowski@samsung.com>
Signed-off-by: NJaehoon Chung <jh80.chung@samsung.com>
Signed-off-by: NUlf Hansson <ulf.hansson@linaro.org>

Odroid-XU4 has a RTL8153-CG gigabit Ethernet adapter, connected over
USB 3.0.
Signed-off-by: NAnand Moon <linux.amoon@gmail.com>
Signed-off-by: NKrzysztof Kozlowski <k.kozlowski@samsung.com>
Signed-off-by: NKukjin Kim <kgene@kernel.org>

The Marvell WiFi-Ex driver tries to load a firmware on probe. So if the
driver is built-in and probed before a firmware is available, this is
not loaded and the chip does not work.

This happens for example if an initramfs isn't used since the driver is
probed before the root filesystem is mounted.

Change the default config since the driver isn't needed for machines to
boot and is more convenient to have it enabled as a module to avoid
requiring an initramfs or to have the firmware built into the kernel.
Signed-off-by: NJavier Martinez Canillas <javier@osg.samsung.com>
Reviewed-by: NAndreas Faerber <afaerber@suse.de>
Signed-off-by: NKrzysztof Kozlowski <k.kozlowski@samsung.com>
Signed-off-by: NKukjin Kim <kgene@kernel.org>

The simplefb driver allows the kernel to render on a pre-allocated
buffer that's been initialized by firmware before the kernel boots.

This option was enabled to have display working on the Exynos5250
Snow Chromebook by commit da9d0fbf ("ARM: exynos: defconfig
update") since proper DRM/KMS support did not exist at that time.

But now that the Exynos DRM driver has support for this hardware,
there is no need to have simplefb enabled. In fact, if a user has
a u-boot that injects the simplefb dev node to the FDT before pass
it to the kernel, display won't be properly initialized and only a
blank screen will be shown since there isn't a proper handoff from
the simplefb driver to the Exynos DRM driver.
Signed-off-by: NJavier Martinez Canillas <javier@osg.samsung.com>
Signed-off-by: NKrzysztof Kozlowski <k.kozlowski@samsung.com>
Reviewed-by: NMichael Turquette <mturquette@baylibre.com>
Tested-by: NMichael Turquette <mturquette@baylibre.com>
Signed-off-by: NKukjin Kim <kgene@kernel.org>

Odroid XU3 family boards come with RGB LEDs. Enabling LEDS_GPIO and
LEDS_PWM allows monitoring the board alive state (heartbeat) and
MMC/SDcard IO usage.
Signed-off-by: NAnand Moon <linux.amoon@gmail.com>
Reviewed-by: NJavier Martinez Canillas <javier@osg.samsung.com>
[k.kozlowski: Rewritten the commit message]
Signed-off-by: NKrzysztof Kozlowski <k.kozlowski@samsung.com>
Signed-off-by: NKukjin Kim <kgene@kernel.org>

DWC2 (s3c-hsotg) hardware module is available on many Exynos based boards,
so enable DWC2 driver as well as the most common USB Ethernet gadget.
Signed-off-by: NMarek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: NKrzysztof Kozlowski <k.kozlowski@samsung.com>
Signed-off-by: NKukjin Kim <kgene@kernel.org>

The Exynos5420 Peach Pit and Exynos5800 Peach Pi boards have a built-in
Silicon Motion USB UVC WebCam. Enable support for the USB Video Class
driver and its needed media Kconfig symbols so the camera is supported.
Signed-off-by: NJavier Martinez Canillas <javier@osg.samsung.com>
Reviewed-by: NKrzysztof Kozlowski <k.kozlowski@samsung.com>
Signed-off-by: NKukjin Kim <kgene@kernel.org>

Use vendor prefixes for Kconfig symbols and filenames. This should make
it easier to identify the various bridge drivers and to organize the
directory.

v2: fix object name for dw-hdmi (Fabio Estevam)
Signed-off-by: NThierry Reding <treding@nvidia.com>

The likelihood of getting a large number of panel drivers from different
vendors is quite high. Add a prefix to the two existing Samsung panel
drivers to set a guideline for future patch submissions. Using vendor
prefixes consistently should allow a cleaner organization of the tree.
Acked-by: NKrzysztof Kozlowski <k.kozlowski@samsung.com>
Signed-off-by: NThierry Reding <treding@nvidia.com>

With the latest patches the cpufreq-dt can be used on multiple
Exynos SoCs: 3250, 4210, 4212, 4412 and 5250.

Enable it along with default ondemand governor to conserve the energy,
reduce temperature while maintaining acceptable performance.
Signed-off-by: NKrzysztof Kozlowski <k.kozlowski@samsung.com>
Reviewed-by: NJavier Martinez Canillas <javier@osg.samsung.com>
Signed-off-by: NKukjin Kim <kgene@kernel.org>

The Exynos5420 Peach Pit and Exynos5800 Peach Pi Chromebooks have
IIO based ADC thermistors. Enable built-in support for its driver.
Signed-off-by: NJavier Martinez Canillas <javier@osg.samsung.com>
Signed-off-by: NKrzysztof Kozlowski <k.kozlowski@samsung.com>
Signed-off-by: NKukjin Kim <kgene@kernel.org>

Enable CONFIG_SND_SOC_ODROIDX2 and CONFIG_SND_SIMPLE_CARD to enable
sound on Odroid-XU3 board using the max98090 audio codec.
Signed-off-by: NAnand Moon <linux.amoon@gmail.com>
Reviewed-by: NLukasz Majewski <l.majewski@samsung.com>
Signed-off-by: NKrzysztof Kozlowski <k.kozlowski@samsung.com>
Signed-off-by: NKukjin Kim <kgene@kernel.org>

Odroid-XU3 board support power monitor sensor.

Below is the output of boot log.
[    3.241438] ina2xx 0-0040: power monitor ina231 (Rshunt = 10000 uOhm)
[    3.248068] ina2xx 0-0041: power monitor ina231 (Rshunt = 10000 uOhm)
[    3.254724] ina2xx 0-0044: power monitor ina231 (Rshunt = 10000 uOhm)
[    3.261354] ina2xx 0-0045: power monitor ina231 (Rshunt = 10000 uOhm)

ina231-i2c-0-40
Adapter: s3c2410-i2c
in0:          +0.00 V
in1:          +1.01 V
power1:      175.00 mW
curr1:        +0.18 A

ina231-i2c-0-41
Adapter: s3c2410-i2c
in0:          +0.00 V
in1:          +1.21 V
power1:       50.00 mW
curr1:        +0.04 A

ina231-i2c-0-44
Adapter: s3c2410-i2c
in0:          +0.00 V
in1:          +1.02 V
power1:       50.00 mW
curr1:        +0.04 A

ina231-i2c-0-45
Adapter: s3c2410-i2c
in0:          +0.00 V
in1:          +1.04 V
power1:       75.00 mW
curr1:        +0.07 A
Signed-off-by: NAnand Moon <linux.amoon@gmail.com>
Signed-off-by: NKrzysztof Kozlowski <k.kozlowski@samsung.com>
Signed-off-by: NKukjin Kim <kgene@kernel.org>

Enable CONFIG_SENSORS_PWM_FAN on exynos_defconfig to control fan
power on Odroid-XU3.
Signed-off-by: NAnand Moon <linux.amoon@gmail.com>
Signed-off-by: NKrzysztof Kozlowski <k.kozlowski@samsung.com>
Signed-off-by: NKukjin Kim <kgene@kernel.org>

This patch does 'savedefconfig' for exynos_defconfig to remove useless
configs and check its dependencies. Sometimes some configs could be
ignored because of the dependencies even they are enabled in defconfig
file manually. So checking the dependencies would be better.
Signed-off-by: NKukjin Kim <kgene@kernel.org>

Enable the Exynos DSI and S6E8AA0 panel for full X11 display on Trats2.
Signed-off-by: NKrzysztof Kozlowski <k.kozlowski@samsung.com>
Reviewed-by: NJavier Martinez Canillas <javier.martinez@collabora.co.uk>
Signed-off-by: NKukjin Kim <kgene@kernel.org>