[ Upstream commit 9f9e2df2e6 ]
Few options KALLSYMS_ALL, SCSI, PM_DEVFREQ and mutex/spinlock debugging
were removed with savedefconfig because they were selected by other
options. However these are user-visible options and they might not be
selected in the future. Exactly this happened with commit 0e4a459f56
("tracing: Remove unnecessary DEBUG_FS dependency") removing the
dependency between DEBUG_FS and TRACING.
To avoid losing these options in the future, explicitly mention them in
defconfig.
Reported-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
[ Upstream commit a2315d3aea ]
Commit 9f532d26c7 ("ARM: exynos_defconfig: Trim and reorganize with
savedefconfig") removed explicit enable line for CONFIG_DEBUG_FS, because
that feature has been selected by other enabled options: CONFIG_TRACING,
which in turn had been selected by CONFIG_PERF_EVENTS and
CONFIG_PROVE_LOCKING.
In meantime, commit 0e4a459f56 ("tracing: Remove unnecessary DEBUG_FS
dependency") removed the dependency between CONFIG_DEBUG_FS and
CONFIG_TRACING, so CONFIG_DEBUG_FS is no longer enabled in default builds.
Enable it again explicitly, as debugfs support is essential for various
automated testing tools.
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Exynos5250-based Arndale board has one eSATA port, so enable AHCI-platform
driver, which handles it.
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
We keep this in a separate branch to avoid cross-branch conflicts, but
most of the material here is fairly boring -- some new drivers turned on
for hardware since they were merged, and some refreshed files due to
time having moved a lot of entries around.
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Merge tag 'armsoc-defconfig' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc
Pull ARM SoC defconfig updates from Olof Johansson:
"We keep this in a separate branch to avoid cross-branch conflicts, but
most of the material here is fairly boring -- some new drivers turned
on for hardware since they were merged, and some refreshed files due
to time having moved a lot of entries around"
* tag 'armsoc-defconfig' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (47 commits)
ARM: configs: multi_v5: Remove duplicate ASPEED options
arm64: defconfig: Enable CONFIG_KEYBOARD_SNVS_PWRKEY as module
ARM: imx_v6_v7_defconfig: Enable CONFIG_ARM_IMX_CPUFREQ_DT
defconfig: arm64: enable i.MX8 SCU octop driver
arm64: defconfig: Add i.MX SCU SoC info driver
arm64: defconfig: Enable CONFIG_QORIQ_THERMAL
ARM: imx_v6_v7_defconfig: Select CONFIG_NVMEM_SNVS_LPGPR
arm64: defconfig: ARM_IMX_CPUFREQ_DT=m
ARM: imx_v6_v7_defconfig: Add TPM PWM support by default
ARM: imx_v6_v7_defconfig: Enable the OV2680 camera driver
ARM: imx_v6_v7_defconfig: Enable CONFIG_THERMAL_STATISTICS
arm64: defconfig: NVMEM_IMX_OCOTP=y for imx8m
ARM: multi_v7_defconfig: enable STMFX pinctrl support
arm64 defconfig: enable LVM support
ARM: configs: multi_v5: Add more ASPEED devices
arm64: defconfig: Add Tegra194 PCIe driver
ARM: configs: aspeed: Add new drivers
ARM: exynos_defconfig: Enable Panfrost and Lima drivers
ARM: multi_v7_defconfig: Enable Panfrost and Lima drivers
arm64 defconfig: enable Mellanox cards
...
Some big.LITTLE systems have I-Cache line size mismatch between
LITTLE and big cores. This patch adds a workaround for proper I-Cache
support on such systems. Without it, some class of the userspace code
(typically self-modifying) might suffer from random SIGILL failures.
Similar workaround already exists for ARM64 architecture. I has been
added by commit 116c81f427 ("arm64: Work around systems with mismatched
cache line sizes").
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
Enable support for Mali GPU with Panfrost and Lima drivers. Most of
Exynos chipsets come with Mali GPUs:
1. Mali 400 (Exynos3250, Exynos4210, Exynos4412),
2. Mali T628 (Exynos542x).
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Trim and reorganize the defconfig with savedefconfig on latest
linux-next. The ARCH_EXYNOS3 is removed because it become the default.
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Support for Exynos5420/5422/5800 SoCs requires MCPM to properly boot all
CPU cores on all currectly supported platforms: Peach Pit (Exynos5420),
Odroid XU3/XU3lite/XU4/HC1 (Exynos5422) and Peach Pi (Exynos5800).
Without it some CPU cores fail to come online. Remove then the ability to
disable MCPM and make it mandatory when Exynos542x/5800 support is
enabled.
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Add DRM bridge driver for TOSHIBA TC358764 chip used in LCD panel
for Samsung Exynos5250-based Arndale board.
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Add regulator driver for MAX8952 PMIC chip used on Samsung UniversalC210
board.
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Add RTC and charger drivers for MAX8998 chip used on Samsung UniversalC210
board.
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Reviewed-by: Chanwoo Choi <cw00.choi@samsung.com>
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
The cros-ec I2C and SPI transport drivers have been moved from MFD
subsystem to platform/chrome, at the same time, the config symbol has
been renamed and lost the MFD_ prefix, so update all configs to the new
config symbol name.
Signed-off-by: Enric Balletbo i Serra <enric.balletbo@collabora.com>
Acked-by: Krzysztof Kozlowski <krzk@kernel.org>
Reviewed-by: Guenter Roeck <groeck@chromium.org>
Signed-off-by: Benson Leung <bleung@chromium.org>
Add Samsung S6E63J0X03 DSI panel driver to enable support for display
panel on Exynos3250-based Samsung Rinato board.
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
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>
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>
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>
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>
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>
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>
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.
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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 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
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>
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>
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>
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>
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>
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.
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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 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
...
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>
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>
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>
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>
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>
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>
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>
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>
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
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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.
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
...
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>
1. Fix samsung-keypad build error if INPUT is selected as module.
The error though depends on some uncommon build settings so it
is not as easy to trigger.
2. Get rid of 'samsung_device_dma_mask' defined but not used warning.
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Merge tag 'samsung-fixes-4.7' of git://git.kernel.org/pub/scm/linux/kernel/git/krzk/linux into fixes
Two fixes for v4.7 cycle for build issues:
1. Fix samsung-keypad build error if INPUT is selected as module.
The error though depends on some uncommon build settings so it
is not as easy to trigger.
2. Get rid of 'samsung_device_dma_mask' defined but not used warning.
* tag 'samsung-fixes-4.7' of git://git.kernel.org/pub/scm/linux/kernel/git/krzk/linux:
ARM: exynos: don't select keyboard driver
ARM: samsung: improve static dma_mask definition
Signed-off-by: Olof Johansson <olof@lixom.net>
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: Javier Martinez Canillas <javier@osg.samsung.com>
Signed-off-by: Krzysztof 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: Javier Martinez Canillas <javier@osg.samsung.com>
Reviewed-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Signed-off-by: Krzysztof 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: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Tested-by: Markus Reichl <m.reichl@fivetechno.de>
Reviewed-by: Javier Martinez Canillas <javier@osg.samsung.com>
Tested-by: Javier Martinez Canillas <javier@osg.samsung.com>
Reviewed-by: Anand Moon <linux.amoon@gmail.com>
Tested-by: Anand Moon <linux.amoon@gmail.com>
Reviewed-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Signed-off-by: Krzysztof 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: Arnd Bergmann <arnd@arndb.de>
Link: https://lkml.org/lkml/2016/2/14/55
Signed-off-by: Krzysztof 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: Javier Martinez Canillas <javier@osg.samsung.com>
Signed-off-by: Krzysztof 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: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Reviewed-by: Javier Martinez Canillas <javier@osg.samsung.com>
The driver has been removed so the Kconfig symbol is not valid anymore.
Signed-off-by: Javier Martinez Canillas <javier@osg.samsung.com>
Reviewed-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Reviewed-by: Andi Shyti <andi.shyti@samsung.com>
Signed-off-by: Krzysztof 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: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Reviewed-by: Anand Moon <linux.amoon@gmail.com>
Reviewed-by: Javier 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: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Reviewed-by: Anand Moon <linux.amoon@gmail.com>
Reviewed-by: Javier 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: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Reviewed-by: Javier Martinez Canillas <javier@osg.samsung.com>
Krzysztof Kozlowski