ARM: exynos_defconfig: Enable CONFIG_EXYNOS_IOMMU

EXYNOS_IOMMU is disabled in exynos_defconfig since it was known to cause
boot failures on Exynos Chromebooks. The recommendation was for

ARM: exynos_defconfig: Enable CONFIG_EXYNOS_IOMMU

EXYNOS_IOMMU is disabled in exynos_defconfig since it was known to cause
boot failures on Exynos Chromebooks. The recommendation was for IOMMU to
be enabled manually on systems as needed.

A recent exynos_drm change added a warning message when EXYNOS_IOMMU is
disabled. It is necessary to enable it to avoid the warning messages.
A few initial tests have shown that enabling EXYNOS_IOMMU might be safe
on Exynos Chrome-books.

Due to some other changes in the order of operations during boot
process, power domains are initialized very early and because of the
temporary lack of devices (which are not yet added to the system), are
turned off.

This practically stops FIMD for scanning framebuffer very early during
boot, before IOMMU gets initialized and "solves" the issue, which was
the reason to disable Exynos IOMMU by default on Exynos Snow Chromebooks.

Signed-off-by: Shuah Khan <shuahkh@osg.samsung.com>
Acked-by: Marek Szyprowski <m.szyprowski@samsung.com>
Tested-by: Marek Szyprowski <m.szyprowski@samsung.com>
[krzk: Extend message with Marek Szyprowski's explanation]
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>

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ARM: exynos_defconfig: Enable missing drivers for supported Exynos boards

Enable following drivers for recently merged devices:
- perf events and ARM PMU (Performance Measurement Unit) d

ARM: exynos_defconfig: Enable missing drivers for supported Exynos boards

Enable following drivers for recently merged devices:
- perf events and ARM PMU (Performance Measurement Unit) driver for all
Exynos boards
- CEC and S5P CEC driver for all Exynos4 and Exynos5 boards with HDMI
- Sii9234 DRM HDMI-MHL bridge for Trats2
- dedicated Odroid ASoC machine driver for Odroid XU3/XU4

Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>

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ARM: exynos_defconfig: Enable UAS support for Odroid HC1 board

Odroid HC1 board has built-in JMicron USB to SATA bridge, which supports
UAS protocol. Compile-in support for it (instead o

ARM: exynos_defconfig: Enable UAS support for Odroid HC1 board

Odroid HC1 board has built-in JMicron USB to SATA bridge, which supports
UAS protocol. Compile-in support for it (instead of enabling it as module)
to make sure that all built-in storage devices are available for rootfs.
The bridge itself also supports fallback to standard USB Mass Storage
protocol, but USB Mass Storage class doesn't bind to it when UAS is
compiled as module and modules are not (yet) available.

Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>

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ARM: exynos_defconfig: Enable locking test options

exynos_defconfig, beside serving as a reference config for Exynos-based
devices, is used by developers during regular development work.

ARM: exynos_defconfig: Enable locking test options

exynos_defconfig, beside serving as a reference config for Exynos-based
devices, is used by developers during regular development work.
Enabling options responsible for locking tests allows to discover bugs
in drivers and mach code earlier.

This enables:
1. Detection of sleeping in atomic sections (DEBUG_ATOMIC_SLEEP),
2. Full lockdep (DEBUG_LOCK_ALLOC and PROVE_LOCKING which makes other
lock debug entries unneeded),
3. Detection of soft, kernel lockups (SOFTLOCKUP_DETECTOR).

Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Reviewed-by: Anand Moon <linux.amoon@gmail.com>

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ARM: exynos_defconfig: Enable NLS_UTF8 and some crypto algorithms

Enable useful, but not essential components:
- NLS_UTF8, it might be used for accessing Microsoft-FS based storages,

ARM: exynos_defconfig: Enable NLS_UTF8 and some crypto algorithms

Enable useful, but not essential components:
- NLS_UTF8, it might be used for accessing Microsoft-FS based storages,
- popular crypto algorithms and transformations as modules.

Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Reviewed-by: Anand Moon <linux.amoon@gmail.com>

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ARM: exynos_defconfig: Enable Bluetooth, mac80211, NFC and more USB drivers

Enable useful, but not essential, stacks and drivers as modules:
- Bluetooth,
- mac80211,
- NFC,

ARM: exynos_defconfig: Enable Bluetooth, mac80211, NFC and more USB drivers

Enable useful, but not essential, stacks and drivers as modules:
- Bluetooth,
- mac80211,
- NFC,
- some USB network adapters,
- USB storage,
- additional USB devices (printers etc).

Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Reviewed-by: Anand Moon <linux.amoon@gmail.com>

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Merge tag 'samsung-defconfig-4.13-2' of git://git.kernel.org/pub/scm/linux/kernel/git/krzk/linux into next/defconfig

Pull "ARM defconfig cleanup" from Krzysztof Kozłowski:

1. Remove

Merge tag 'samsung-defconfig-4.13-2' of git://git.kernel.org/pub/scm/linux/kernel/git/krzk/linux into next/defconfig

Pull "ARM defconfig cleanup" from Krzysztof Kozłowski:

1. Remove old Kconfig options from all ARM configs,
2. Update Samsung defconfigs to bring back options over time got disabled
for some reason (configs were not updated along with the code),
3. Save defconfigs for Samsung.

* tag 'samsung-defconfig-4.13-2' of git://git.kernel.org/pub/scm/linux/kernel/git/krzk/linux:
ARM: tct_hammer_defconfig: Save defconfig
ARM: s5pv210_defconfig: Save defconfig
ARM: s3c6400_defconfig: Save defconfig
ARM: mini2440_defconfig: Save defconfig
ARM: s3c2410_defconfig: Save defconfig
ARM: exynos_defconfig: Save defconfig
ARM: s5pv210_defconfig: Bring back lost (but wanted) options
ARM: s3c6400_defconfig: Bring back lost (but wanted) options
ARM: s3c2410_defconfig: Bring back lost (but wanted) options
ARM: tct_hammer_defconfig: Bring back lost (but wanted) options
ARM: mini2440_defconfig: Bring back lost (but wanted) options
ARM: defconfig: samsung: Re-order entries to match savedefconfig
ARM: defconfig: Cleanup from old Kconfig options

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ARM: exynos_defconfig: Save defconfig

Generate new defconfig to get rid of obsolete Kconfig entries:
- RFKILL_REGULATOR is gone;
- COMMON_CLK_MAX77802 was merged into COMMON_CLK_MA

ARM: exynos_defconfig: Save defconfig

Generate new defconfig to get rid of obsolete Kconfig entries:
- RFKILL_REGULATOR is gone;
- COMMON_CLK_MAX77802 was merged into COMMON_CLK_MAX77686;

Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Acked-by: Arnd Bergmann <arnd@arndb.de>

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ARM: defconfig: samsung: Re-order entries to match savedefconfig

Re-order entries just like savedefconfig would do so it will be easier
to review the changes before actual savedefconfig.

ARM: defconfig: samsung: Re-order entries to match savedefconfig

Re-order entries just like savedefconfig would do so it will be easier
to review the changes before actual savedefconfig.

Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Acked-by: Arnd Bergmann <arnd@arndb.de>

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ARM: exynos_defconfig: Enable Exynos RNG and user-space crypto API

Enable the new Exynos pseudo random number generator driver and
user-space API to access crypto algorithms and devices

ARM: exynos_defconfig: Enable Exynos RNG and user-space crypto API

Enable the new Exynos pseudo random number generator driver and
user-space API to access crypto algorithms and devices (not only RNG).

Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>

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ARM: exynos_defconfig: Increase CONFIG_CMA_SIZE_MBYTES to 96

Current CMA size of 64 Mbytes is right on the edge of being small when
several drivers need to allocate large CMA buffers.

ARM: exynos_defconfig: Increase CONFIG_CMA_SIZE_MBYTES to 96

Current CMA size of 64 Mbytes is right on the edge of being small when
several drivers need to allocate large CMA buffers.

For example, if the s5p-mfc driver needs to pre-allocate CMA memory to
decode a H.264 1080p video, then there won't be enough CMA memory left
for other drivers, such as the exynos-drm driver that may need to
allocate GEM buffers for the display manager.

Increasing CMA size to 96 Mbytes in exynos_defconfig addresses use-cases
such as these.

Suggested-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Shuah Khan <shuahkh@osg.samsung.com>
Reviewed-by: Javier Martinez Canillas <javier@osg.samsung.com>
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>

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ARM: exynos_defconfig: Enable DYNAMIC_DEBUG and get rid of old ext3

DYNAMIC_DEBUG is quite useful for debugging kernels and should not cause
noticeable performance regressions. It makes

ARM: exynos_defconfig: Enable DYNAMIC_DEBUG and get rid of old ext3

DYNAMIC_DEBUG is quite useful for debugging kernels and should not cause
noticeable performance regressions. It makes the kernel bigger (around 4%)
but this difference should not impact typical developer and reference
usage of this defconfig.

Sizes:
zImage-old: 4641496 bytes
zImage-new: 4811384 bytes

text data bss dec hex filename
7031229 2570916 327016 9929161 9781c9 vmlinux-old
7205921 2800052 327016 10332989 9dab3d vmlinux-new

Additionally, remove the EXT3_FS symbol because it is entirely replaced
by EXT4_FS.

Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Reviewed-by: Javier Martinez Canillas <javier@osg.samsung.com>

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Merge tag 'armsoc-defconfig' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull ARM SoC defconfig updates from Arnd Bergmann:
"Defconfig additions, removals, etc. Almost

Merge tag 'armsoc-defconfig' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull ARM SoC defconfig updates from Arnd Bergmann:
"Defconfig additions, removals, etc. Almost all of them just turn on
drivers that we want on some platform, usually after the driver has
been merged into mainline.

There is now a new defconfig file for tango4"

* tag 'armsoc-defconfig' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (44 commits)
ARM: multi_v7_defconfig: enable pstore configs
ARM: multi_v7_defconfig: enable some newly added crypto modules
ARM: davinci_all_defconfig: enable SATA modules
arm64: defconfig: enable CONFIG_MTD_NAND and CONFIG_MTD_NAND_DENALI_DT
arm64: defconfig: enable CONFIG_MTD_BLOCK
ARM: Import tango4_defconfig
ARM: omap2plus_defconfig: Enable support for RTC M41T80
ARM: omap2plus_defconfig: Enable support for micrell phys
ARM: vf610m4: defconfig: enable EXT4 filesystem
ARM: omap2plus_defconfig: Fix probe errors on UARTs 5 and 6
arm64: defconfig: Enable NUMA and NUMA_BALANCING
arm64: defconfig: enable SMMUv3 config
ARM: davinci_all_defconfig: enable iio
ARM: Keystone: Enable ARCH_HAS_RESET_CONTROLLER
ARM: configs: stm32: Add RTC support in STM32 defconfig
ARM: defconfig: qcom: add APQ8060 DragonBoard devices
ARM: qcom_defconfig: enable thermal sensors
ARM: qcom_defconfig: add ahci configs
ARM: qcom_defconfig: add pcie and atl1c ethernet configs
ARM: qcom_defconfig: add usb related configs
...

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cpufreq: Remove CONFIG_CPU_FREQ_STAT_DETAILS config option

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

cpufreq: Remove CONFIG_CPU_FREQ_STAT_DETAILS config option

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: Viresh Kumar <viresh.kumar@linaro.org>
Acked-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
Reviewed-by: Chanwoo Choi <cw00.choi@samsung.com>
Acked-by: Krzysztof Kozlowski <krzk@kernel.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>

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ARM: exynos_defconfig: Enable IP multicast

Prior to Nikolay's commit dcd87999d, libnss-mdns (eg. to resolve
"foo.local" on the LAN using mDNS) worked without CONFIG_IP_MULTICAST
defi

ARM: exynos_defconfig: Enable IP multicast

Prior to Nikolay's commit dcd87999d, libnss-mdns (eg. to resolve
"foo.local" on the LAN using mDNS) worked without CONFIG_IP_MULTICAST
defined, but dcd87999d caused it to stop working without having
CONFIG_IP_MULTICAST defined explicitly.

Since exynos_defconfig did not previously define CONFIG_IP_MULTICAST,
mDNS used to work for users building with just exynos_defconfig, but
stopped working from dcd87999d.

Define CONFIG_IP_MULTICAST explicitly in exynos_defconfig as it appears
essential anyway.

Signed-off-by: Robie Basak <robie@justgohome.co.uk>
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>

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ARM: exynos_defconfig: Enable exynos-gsc driver as module

Exynos5 SoCs have a General SCALER (GSCALER) IP block that can be used
to do video streams scaling and color space conversions b

ARM: exynos_defconfig: Enable exynos-gsc driver as module

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: Javier Martinez Canillas <javier@osg.samsung.com>
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>

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Merge tag 'fbdev-4.9' of git://git.kernel.org/pub/scm/linux/kernel/git/tomba/linux

Pull fbdev updates from Tomi Valkeinen:
"Main changes:

- amba-cldc: DT backlight support,

Merge tag 'fbdev-4.9' of git://git.kernel.org/pub/scm/linux/kernel/git/tomba/linux

Pull fbdev updates from Tomi Valkeinen:
"Main changes:

- amba-cldc: DT backlight support, Nomadik support, Versatile
improvements, fixes

- efifb: fix fbcon RGB565 palette

- exynos: remove unused DSI driver"

* tag 'fbdev-4.9' of git://git.kernel.org/pub/scm/linux/kernel/git/tomba/linux: (42 commits)
video: smscufx: remove unused variable
matroxfb: fix size of memcpy
fbdev: ssd1307fb: fix a possible NULL dereference
fbdev: ssd1307fb: constify the device_info pointer
simplefb: Disable and release clocks and regulators in destroy callback
video: fbdev: constify fb_fix_screeninfo and fb_var_screeninfo structures
matroxfb: constify local structures
video: fbdev: i810: add in missing white space in error message text
video: fbdev: add missing \n at end of printk error message
ARM: exynos_defconfig: Remove old non-working MIPI driver
video: fbdev: exynos: Remove old non-working MIPI driver
omapfb: fix return value check in dsi_bind()
MAINTAINERS: update fbdev entries
video: fbdev: offb: Call pci_enable_device() before using the PCI VGA device
fbdev: vfb: simplify memory management
fbdev: vfb: add option for video mode
fbdev: vfb: add description to module parameters
video: fbdev: intelfb: remove impossible condition
fb: adv7393: off by one in probe function
video: fbdev: pxafb: add missing of_node_put() in of_get_pxafb_mode_info()
...

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ARM: exynos_defconfig: Remove old non-working MIPI driver

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

Cc:

ARM: exynos_defconfig: Remove old non-working MIPI driver

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: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>

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Merge tag 'tags/samsung-defconfig-schedutil-4.9' into next/defconfig

The schedutil cpufreq governor will be switched from tristate to bool. Fix
defconfigs.

ARM: exynos_defconfig: Don't attempt to enable schedutil governor as module

The schedutil CPUFreq governor could be built as a module but the change
"cpufreq / sched: Pass flags to cpufr

ARM: exynos_defconfig: Don't attempt to enable schedutil governor as module

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: Javier Martinez Canillas <javier@osg.samsung.com>
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>

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ARM: exynos_defconfig: Enable SECCOMP

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

ARM: exynos_defconfig: Enable SECCOMP

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: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Reviewed-by: Javier Martinez Canillas <javier@osg.samsung.com>

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ARM: exynos_defconfig: Enable PM_DEBUG

PM_DEBUG and PM_ADVANCED_DEBUG bring some information useful for
development and they should not cause any significant overhead. Enable
them i

ARM: exynos_defconfig: Enable PM_DEBUG

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: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Reviewed-by: Javier Martinez Canillas <javier@osg.samsung.com>
Acked-by: Kukjin Kim <kgene@kernel.org>

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ARM: exynos_defconfig: Enable bus frequency scaling with devfreq

This patch enables the bus frequency scaling driver with devfreq and
devfreq-event framework. Devfreq is already support

ARM: exynos_defconfig: Enable bus frequency scaling with devfreq

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: Chanwoo Choi <cw00.choi@samsung.com>
Reviewed-by: Javier Martinez Canillas <javier@osg.samsung.com>
Reviewed-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
[k.kozlowski: Don't enable symbols already selected, adjust commit msg]
Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>

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Merge tag 'armsoc-defconfig' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull ARM SoC defconfig updates from Olof Johansson:
"Defconfig additions, removals, etc.

Merge tag 'armsoc-defconfig' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull ARM SoC defconfig updates from Olof Johansson:
"Defconfig additions, removals, etc.

Most of these are small changes adding the options for newly
upstreamed drivers, or drivers needed for new board support.

- removed Broadcom bcm_defconfig, targets are all covered in
multi_v7_defconfig

- new defconfig: multi_v4t_defconfig"

* tag 'armsoc-defconfig' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (43 commits)
ARM: multi_v7_defconfig: enable STMicroelectronics DRM Support
ARM: multi_v7_defconfig: enable STMicroelectronics BDISP 2D blitter driver
ARM: omap2plus_defconfig: Fix USB selection to keep Ethernet working
ARM: configs: lpc18xx: enable adc and dac iio drivers
ARM: config: Add a multi_v4t_defconfig
ARM: multi_v7_defconfig: add ACT8945A
ARM: at91/defconfig: Add ACT8945A driver
ARM: imx_v6_v7_defconfig: Select ADS7846 support
ARM: configs: qualcomm: Add MDM9615 missing defconfigs
ARM: multi_v7_defconfig: Enable vivid driver as a module
ARM: exynos_defconfig: Enable vivid driver as a module
ARM: defconfig: enable the MSM8660 pin controller
ARM: imx_v6_v7_defconfig: enable USB FFS gadget
ARM: socfpga: enable PL330 DMA in socfpga_defconfig
ARM: socfpga: add PCIe to socfpga_defconfig
ARM: multi_v7_defconfig: defconfig: Enable r8a7792 SoC
ARM: shmobile: defconfig: Enable r8a7792 SoC
ARM: Remove bcm_defconfig
ARM: multi_v7_defconfig: Enable Broadcom Kona watchdog
ARM: multi_v7_defconfig: Enable Broadcom STB PWM
...

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ARM: exynos_defconfig: Enable vivid driver as a module

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

ARM: exynos_defconfig: Enable vivid driver as a module

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: Javier Martinez Canillas <javier@osg.samsung.com>
Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>

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