Jonathan writes:
First set of new device support, features and cleanups for IIO in the 4.5 cycle
Usual mixed bag, but the big item perhaps in this series is the DMA buffer
support added by Lars-Peter Clausen. It's been in the works for a long time
and it will be interesting to see what hardware support shows up now that
this is available.
New core features + associate cleanup.
* Add generic DMA buffer infrastructure
* Add a DMAengine framework based buffer
Also associated minor changes.
- Set the device buffer watermark based on the minimum watermark for all
attached buffers rather than just the 'primary' one.
- iio_buffer_init - only set the watermark default if one hasn't already
been provided. This allows simple support for devices with a fixed
watermark.
- read only attribute for watermark on fixed watermark devices.
- add explicit buffer enable/disable callbacks to allow the buffer to
do more than trivial actions when it is being turned on and off.
* IIO_VAL_INT support in write_raw_get_fmt function.
New device support
* Freescale MMA7455/7456L accelerometers
* Memsic MXC6255XC accelerometer
* ST lis2dh12 accelerometer
* TI ADS8688 ADC
* TI Palamas (twl6035/7) gpadc
New driver features
* mma8452
- support either of the available interrupt pins to cope with the case
where board layout has lead to a particular one being connected.
Staging graduation
* Dummy driver
- this driver acts as both an example and a test device for those with
out hardware to develop userspace code against.
Cleanups and minor bits and bobs.
* treewide
- Sort out the ordering of iio_device_register/unregister vs runtime
pm function calls so that it's all nice and consistent and not race
prone.
- Check sscanf return values. None of the cases will actually happen as
the strings are supplied internally, but best to be consistent on this.
* ad7780
- switch over to the gpio descriptor interface and remove the now unused
platform data which gets rid of a header entirely.
* ad7793
- drop a pointless else statement.
* at91_adc
- Swap kmalloc_array in for a kmalloc doing the same job.
* dummy
- get rid of some commented out lines that snuck in during the move of
the driver.
* lm3533-als
- Print an error message on provision of an invalid resistance.
* mcp320x
- Add compatible strings with vendor prefix and deprecate those with
no vendor prefix.
* mxs-lradc
- Use BIT macro in various places rather than shifted ones.
* pa12203001
- Power off the chip if the registration fails.
* pulsedlight-lidar-lite
- add runtime PM support.
* xilinx XADC
- constify an iio_buffer_setup_ops structure.
Pull chrome platform updates from Olof Johansson:
"Here's the branch of chrome platform changes for v4.4. Some have been
queued up for the full 4.3 release cycle since I forgot to send them
in for that round (rebased early on to deal with fixes conflicts).
Most of these enable EC communication stuff -- Pixel 2015 support,
enabling building for ARM64 platforms, and a few fixes for memory
leaks.
There's also a patch in here to allow reading/writing the verified
boot context, which depends on a sysfs patch acked by Greg"
* tag 'chrome-platform-4.4' of git://git.kernel.org/pub/scm/linux/kernel/git/olof/chrome-platform:
platform/chrome: Fix i2c-designware adapter name
platform/chrome: Support reading/writing the vboot context
sysfs: Support is_visible() on binary attributes
platform/chrome: cros_ec: Fix possible leak in led_rgb_store()
platform/chrome: cros_ec: Fix leak in sequence_store()
platform/chrome: Enable Chrome platforms on 64-bit ARM
platform/chrome: cros_ec_dev - Add a platform device ID table
platform/chrome: cros_ec_lpc - Add support for Google Pixel 2
platform/chrome: cros_ec_lpc - Use existing function to check EC result
platform/chrome: Make depends on MFD_CROS_EC instead CROS_EC_PROTO
Revert "platform/chrome: Don't make CHROME_PLATFORMS depends on X86 || ARM"
Pull ARM SoC platform updates from Olof Johansson:
"New and/or improved SoC support for this release:
Marvell Berlin:
- Enable standard DT-based cpufreq
- Add CPU hotplug support
Freescale:
- Ethernet init for i.MX7D
- Suspend/resume support for i.MX6UL
Allwinner:
- Support for R8 chipset (used on NTC's $9 C.H.I.P board)
Mediatek:
- SMP support for some platforms
Uniphier:
- L2 support
- Cleaned up SMP support, etc.
plus a handful of other patches around above functionality, and a few
other smaller changes"
* tag 'armsoc-soc' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (42 commits)
ARM: uniphier: rework SMP operations to use trampoline code
ARM: uniphier: add outer cache support
Documentation: EXYNOS: Update bootloader interface on exynos542x
ARM: mvebu: add broken-idle option
ARM: orion5x: use mac_pton() helper
ARM: at91: pm: at91_pm_suspend_in_sram() must be 8-byte aligned
ARM: sunxi: Add R8 support
ARM: digicolor: select pinctrl/gpio driver
arm: berlin: add CPU hotplug support
arm: berlin: use non-self-cleared reset register to reset cpu
ARM: mediatek: add smp bringup code
ARM: mediatek: enable gpt6 on boot up to make arch timer working
soc: mediatek: Fix random hang up issue while kernel init
soc: ti: qmss: make acc queue support optional in the driver
soc: ti: add firmware file name as part of the driver
Documentation: dt: soc: Add description for knav qmss driver
ARM: S3C64XX: Use PWM lookup table for mach-smartq
ARM: S3C64XX: Use PWM lookup table for mach-hmt
ARM: S3C64XX: Use PWM lookup table for mach-crag6410
ARM: S3C64XX: Use PWM lookup table for smdk6410
...
Pull regulator updates from Mark Brown:
"This is quite a quiet release in terms of volume of patches but it
includes a couple of really nice core changes - the work Sascha has
done in particular is something I've wanted to get done for a long
time but just never got round to myself.
Highlights include:
- Support from Sascha Hauer for setting the voltage of parent
supplies based on requests from their children. This is used both
to allow set_voltage() to work through a dumb switch and to improve
the efficiency of systems where DCDCs are used to supply LDOs by
minimising the voltage drop over the LDOs.
- Removal of regulator_list by Tomeu Vizoso, meaning we're not
duplicating the device list maintained by the driver core.
- Support for Wolfson/Cirrus WM8998 and WM1818"
* tag 'regulator-v4.4' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator: (29 commits)
regulator: Use regulator_lock_supply() for get_voltage() too
regulator: arizona: Add regulator specific device tree binding document
regulator: stw481x: compile on COMPILE_TEST
regulator: qcom-smd: Correct set_load() unit
regulator: core: Propagate voltage changes to supply regulators
regulator: core: Factor out regulator_map_voltage
regulator: i.MX anatop: Allow supply regulator
regulator: introduce min_dropout_uV
regulator: core: create unlocked version of regulator_set_voltage
regulator: arizona-ldo1: Fix handling of GPIO 0
regulator: da9053: Update regulator for DA9053 BC silicon support
regulator: max77802: Separate sections for nodes and properties
regulator: max77802: Add input supply properties to DT binding doc
regulator: axp20x: set supply names for AXP22X DC1SW/DC5LDO internally
regulator: axp20x: Drop AXP221 DC1SW and DC5LDO regulator supplies from bindings
mfd: tps6105x: Use i2c regmap to access registers
regulator: act8865: add DT binding for property "active-semi,vsel-high"
regulator: act8865: support output voltage by VSET2[] bits
regulator: arizona: add support for WM8998 and WM1814
regulator: core: create unlocked version of regulator_list_voltage
...
The WRSTBI bit (disabled by default but enabled by bootloader), when
set, is responsible for resetting voltages to default values of
certain bucks on falling edge of Warm Reset Input pin from AP.
However on some boards (with S2MPS13) the pin is pulled down so any
suspend will effectively trigger the reset of bucks supplying the power
to the little and big cores. In the same time when resuming, these bucks
must provide voltage greater or equal to voltage before suspend to match
the frequency chosen by cpufreq. If voltage (default value of voltage
after reset) is lower than one set by cpufreq before suspend, then
system will hang during resuming.
Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Reported-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Tested-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
rts522a(rts5227s) is derived from rts5227, and mainly same with rts5227.
Add it to file mfd/rts5227.c to support this chip.
Signed-off-by: Micky Ching <micky_ching@realsil.com.cn>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Definitions for GPIO registers 8, 9, 10, 11, 12 and 13 are added into
the register header file.
- DA9052_GPIO_8_9_REG 25
- DA9052_GPIO_10_11_REG 26
- DA9052_GPIO_12_13_REG 27
A modification is also made to the MFD core code to define these registers
as readable and writable. The functions for da9052_reg_readable() and
da9052_reg_writeable() have had their case statements altered to include
these new registers.
Signed-off-by: Steve Twiss <stwiss.opensource@diasemi.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Add MFD core driver for Intel Broxton Whiskey Cove PMIC,
which is specially accessed by hardware IPC, not a generic
I2C device
Signed-off-by: Qipeng Zha <qipeng.zha@intel.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
IRQ control registers of Intel Broxton Whisky Cove PMIC are
separated in two parts, so add secondary IRQ chip.
And the new member of device will be used in PMC IPC regmap APIs.
Signed-off-by: Qipeng Zha <qipeng.zha@intel.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Some Arizona devices have a hardware ANC block present. This patch adds
the registers necessary to configure this hardware block.
Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
On Odroid XU3 board (with S2MPS11 PMIC) the PWRHOLD bit in CTRL1
register must be manually set to 0 before initiating power off sequence.
One of usual power down methods for Exynos based devices looks like:
1. PWRHOLD pin of PMIC is connected to PSHOLD of Exynos SoC.
2. Exynos holds up this pin during system operation.
3. ACOKB pin of PMIC is pulled up to VBATT and optionally to pin in
other device.
4. When PWRHOLD/PSHOLD goes low, the PMIC will turn off the power if
ACOKB goes high.
On Odroid XU3 family the difference is in (3) - the ACOKB is grounded.
This means that PMIC must manually set PWRHOLD field to low and then
wait for signal from Application Processor (the usual change in
PWRHOLD/PSHOLD pin will actually cut off the power).
The patch adds respective binding allowing Odroid XU3 device to be
powered off.
Signed-off-by: Krzysztof Kozlowski <k.kozlowski.k@gmail.com>
Reported-by: Anand Moon <linux.amoon@gmail.com>
Tested-by: Anand Moon <linux.amoon@gmail.com>
Reviewed-by: Javier Martinez Canillas <javier@osg.samsung.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
There is at least one board on the market, i.e. Intel Galileo Gen2, that uses
_ADR to distinguish the devices under one actual device. Due to this we have to
improve the quirk in the MFD core to handle that board.
Acked-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Acked-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
Some EC implementations include a small nvram space used to store
verified boot context data. This patch offers a way to expose this
data to userspace.
Reviewed-by: Javier Martinez Canillas <javier@osg.samsung.com>
Signed-off-by: Emilio López <emilio.lopez@collabora.co.uk>
Signed-off-by: Olof Johansson <olof@lixom.net>
This patch modifies tps6105x and associated function driver to use regmap
instead of operating directly on i2c.
Signed-off-by: Denis Grigoryev <grigoryev@fastwel.ru>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
This adds a driver for the usb power_supply bits of the axp20x PMICs.
I initially started writing my own driver, before coming aware of
Bruno Prémont's excellent earlier RFC with a driver for this.
My driver was lacking CURRENT_MAX and VOLTAGE_MIN support Bruno's
drvier has, so I've copied the code for those from his driver.
Note that the AC-power-supply and battery charger bits will need separate
drivers. Each one needs its own devictree child-node so that other
devicetree nodes can reference the right power-supply, and thus each one
will get its own mfd-cell / platform_device and platform-driver.
Cc: Bruno Prémont <bonbons@linux-vserver.org>
Acked-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Bruno Prémont <bonbons@linux-vserver.org>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Sebastian Reichel <sre@kernel.org>
On wm5110/8280 some additional settings are required to get accurate
measurements at the top end of the headphone detection range. This patch
adds the bits required for this.
Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Acked-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
