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regulators
commit daebabd578647440d41fc9b48d8c7a88dc2f7ab5 upstream.
Commit 43fef47f94a1 (mfd: twl4030-power: Add a configuration to turn
off oscillator during off-idle) added support for configuring the PMIC
to cut off resources during deeper idle states to save power.
This however caused regression for n900 display power that needed the
PMIC configuration to be disabled with commit d937678ab625 (ARM: dts:
Revert enabling of twl configuration for n900).
Turns out the root cause of the problem is that we must use
TWL4030_RESCONFIG_UNDEF instead of DEV_GRP_NULL to avoid disabling
regulators that may have been enabled before the init function
for twl4030-power.c runs. With TWL4030_RESCONFIG_UNDEF we let the
regulator framework control the regulators like it should. Here we
need to only configure the sys_clken and sys_off_mode triggers for
the regulators that cannot be done by the regulator framework as
it's not running at that point.
This allows us to enable the PMIC configuration for n900.
Fixes: 43fef47f94a1 (mfd: twl4030-power: Add a configuration to turn off oscillator during off-idle)
Signed-off-by: Tony Lindgren <tony@atomide.com>
Tested-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit 1813908986e36119228c158aae1c6a0267c99e77 upstream.
The rtsx_usb driver contains the table for the devices it supports but
doesn't export it. As a result, no alias is generated and it doesn't
get loaded automatically.
Via https://bugzilla.novell.com/show_bug.cgi?id=890096
Signed-off-by: Jeff Mahoney <jeffm@suse.com>
Reported-by: Marcel Witte <wittemar@googlemail.com>
Cc: Roger Tseng <rogerable@realtek.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit 46de8ff8e80a6546aa3d2fdf58c6776666301a0c upstream.
single-ulpi-bypass is a flag used for older OMAP3 silicon.
The flag when set, can excite code that improperly uses the
OMAP_UHH_HOSTCONFIG_UPLI_BYPASS define to clear the corresponding bit.
Instead it clears all of the other bits disabling all of the ports in
the process.
Signed-off-by: Michael Welling <mwelling@emacinc.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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The AD8500 defines itself as interrupt-controller in DT,
but it doesn't assign DT node to IRQ domain when creates it.
As result, of_irq_xx() helpers don't work because they can't
find necessary IRQ domain.
Hence, fix it by assigning AD8500 core device DT node to IRQ
domain when it's created.
This patch fixes STE u8500 Snowball boot failure reported by Kevin Hilman
https://lkml.org/lkml/2014/5/27/624
Reported-and-tested-by: Kevin Hilman <khilman@linaro.org>
Signed-off-by: Grygorii Strashko <grygorii.strashko@ti.com>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
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Without REGMAP_MMIO, building that driver results in a link error:
drivers/built-in.o: In function `davinci_vc_probe':
:(.init.text+0x3c1c): undefined reference to `devm_regmap_init_mmio_clk'
This adds a Kconfig 'select' statement as the usual way to ensure
that REGMAP_MMIO is enabled.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
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This driver depends on I2C, which may be a loadable module.
While you'd probably want both to be built-in in practice,
allowing a modular build avoids possible randconfig link
errors.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
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The UCB1200 / UCB1300 driver uses the MCP_SA11X0 driver, which
can be a loadable module, but this results in a link error
when UCB1200 itself is built-in:
drivers/built-in.o: In function `ucb1x00_io_set_dir':
:(.text+0x4a364): undefined reference to `mcp_reg_write'
drivers/built-in.o: In function `ucb1x00_io_write':
:(.text+0x4a3dc): undefined reference to `mcp_reg_write'
drivers/built-in.o: In function `ucb1x00_io_read':
:(.text+0x4a400): undefined reference to `mcp_reg_read'
drivers/built-in.o: In function `ucb1x00_adc_enable':
:(.text+0x4a460): undefined reference to `mcp_enable'
...
This can easily be resolved by making CONFIG_MCP_UCB1200 itself
a tristate option, since that causes Kconfig to track the
dependency correctly.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd
Pull more MFD updates from Lee Jones:
"I missed collecting these patches due to a branch/tag naming
ambiguity. Completely my own fault, as I mindlessly named a branch
and tag identically. Sorry for the fuss.
This pull-request contains some misplaced patches from Tony Lindgren
that should have been part of the initial one"
* tag 'mfd-for-linus-3.16-1' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd:
mfd: twl4030-power: Add a configuration to turn off oscillator during off-idle
mfd: twl4030-power: Add support for board specific configuration
mfd: twl4030-power: Add recommended idle configuration
mfd: twl4030-power: Add generic reset configuration
mfd: twl4030-power: Fix some defines for SW_EVENTS
mfd: twl4030-power: Fix hang on reboot if sleep configuration was loaded earlier
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git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd into next
Pull MFD updates from Lee Jones:
"Changes to existing drivers:
- increase DT coverage: arizona, mc13xxx, stmpe-i2c, syscon,
sun6i-prcm
- regmap use of and/or clean-up: tps65090, twl6040
- basic renaming: max14577
- use new cpufreq helpers: db8500-prcmu
- increase regulator support: stmpe, arizona, wm5102
- reduce legacy GPIO overhead: stmpe
- provide necessary remove path: bcm590xx
- expand sysfs presence: kempld
- move driver specific code out to drivers: rtc-s5m, arizona
- clk handling: twl6040
- use managed (devm_*) resources: ipaq-micro
- clean-up/remove unused/duplicated code: tps65218, sec, pm8921,
abx500-core, db8500-prcmu, menelaus
- build/boot/sematic bug fixes: rtsx_usb, stmpe, bcm590xx, abx500,
mc13xxx, rdc321x-southbridge, mfd-core, sec, max14577, syscon,
cros_ec_spi
- constify stuff: sm501, tps65910, tps6507x, tps6586x, max77686,
max8997, kempld, max77693, max8907, rtsx_usb, db8500-prcmu,
max8998, wm8400, sec, lp3943, max14577, as3711, omap-usb-host,
ipaq-micro
Support for new devices:
- add support for max77836 into max14577
- add support for tps658640 into tps6586x
- add support for cros-ec-i2c-tunnel into cros_ec
- add new driver for rtsx_usb_sdmmc and rtsx_usb_ms
- add new driver for axp20x
- add new driver for sun6i-prcm
- add new driver for ipaq-micro"
* tag 'mfd-for-linus-3.16' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd: (77 commits)
mfd: wm5102: Correct default for LDO Control 2 register
mfd: menelaus: Use module_i2c_driver
mfd: tps65218: Terminate of match table
mfd: db8500-prcmu: Remove check for CONFIG_DBX500_PRCMU_DEBUG
mfd: ti-keystone-devctrl: Add bindings for device state control
mfd: palmas: Format the header file
mfd: abx500-core: Remove unused function abx500_dump_all_banks()
mfd: arizona: Correct addresses of always-on trigger registers
mfd: max14577: Cast to architecture agnostic data type
i2c: ChromeOS EC tunnel driver
mfd: cros_ec: Sync to the latest cros_ec_commands.h from EC sources
mfd: cros_ec: spi: Increase cros_ec_spi deadline from 5ms to 100ms
mfd: cros_ec: spi: Make the cros_ec_spi timeout more reliable
mfd: cros_ec: spi: Add mutex to cros_ec_spi
mfd: cros_ec: spi: Calculate delay between transfers correctly
mfd: arizona: Correct error message for addition of main IRQ chip
mfd: wm8997: Add registers for high power mode
mfd: arizona: Add MICVDD to mapped regulators
mfd: ipaq-micro: Make mfd_cell array const
mfd: ipaq-micro: Use devm_ioremap_resource()
...
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git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound into next
Pull sound updates from Takashi Iwai:
"At this time, majority of changes come from ASoC world while we got a
few new drivers in other places for FireWire and USB. There have been
lots of ASoC core cleanups / refactoring, but very little visible to
external users.
ASoC:
- Support for specifying aux CODECs in DT
- Removal of the deprecated mux and enum macros
- More moves towards full componentisation
- Removal of some unused I/O code
- Lots of cleanups, fixes and enhancements to the davinci, Freescale,
Haswell and Realtek drivers
- Several drivers exposed directly in Kconfig for use with
simple-card
- GPIO descriptor support for jacks
- More updates and fixes to the Freescale SSI, Intel and rsnd drivers
- New drivers for Cirrus CS42L56, Realtek RT5639, RT5642 and RT5651
and ST STA350, Analog Devices ADAU1361, ADAU1381, ADAU1761 and
ADAU1781, and Realtek RT5677
HD-audio:
- Clean up Dell headset quirks
- Noise fixes for Dell and Sony laptops
- Thinkpad T440 dock fix
- Realtek codec updates (ALC293,ALC233,ALC3235)
- Tegra HD-audio HDMI support
FireWire-audio:
- FireWire audio stack enhancement (AMDTP, MIDI), support for
incoming isochronous stream and duplex streams with timestamp
synchronization
- BeBoB-based devices support
- Fireworks-based device support
USB-audio:
- Behringer BCD2000 USB device support
Misc:
- Clean up of a few old drivers, atmel, fm801, etc"
* tag 'sound-3.16-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: (480 commits)
ASoC: Fix wrong argument for card remove callbacks
ASoC: free jack GPIOs before the sound card is freed
ALSA: firewire-lib: Remove a comment about restriction of asynchronous operation
ASoC: cache: Fix error code when not using ASoC level cache
ALSA: hda/realtek - Fix COEF widget NID for ALC260 replacer fixup
ALSA: hda/realtek - Correction of fixup codes for PB V7900 laptop
ALSA: firewire-lib: Use IEC 61883-6 compliant labels for Raw Audio data
ASoC: add RT5677 CODEC driver
ASoC: intel: The Baytrail/MAX98090 driver depends on I2C
ASoC: rt5640: Add the function "get_clk_info" to RL6231 shared support
ASoC: rt5640: Add the function of the PLL clock calculation to RL6231 shared support
ASoC: rt5640: Add RL6231 class device shared support for RT5640, RT5645 and RT5651
ASoC: cache: Fix possible ZERO_SIZE_PTR pointer dereferencing error.
ASoC: Add helper functions to cast from DAPM context to CODEC/platform
ALSA: bebob: sizeof() vs ARRAY_SIZE() typo
ASoC: wm9713: correct mono out PGA sources
ALSA: synth: emux: soundfont.c: Cleaning up memory leak
ASoC: fsl: Remove dependencies of boards for SND_SOC_EUKREA_TLV320
ASoC: fsl-ssi: Use regmap
ASoC: fsl-ssi: reorder and document fsl_ssi_private
...
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git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm into next
Pull ACPI and power management updates from Rafael Wysocki:
"ACPICA is the leader this time (63 commits), followed by cpufreq (28
commits), devfreq (15 commits), system suspend/hibernation (12
commits), ACPI video and ACPI device enumeration (10 commits each).
We have no major new features this time, but there are a few
significant changes of how things work. The most visible one will
probably be that we are now going to create platform devices rather
than PNP devices by default for ACPI device objects with _HID. That
was long overdue and will be really necessary to be able to use the
same drivers for the same hardware blocks on ACPI and DT-based systems
going forward. We're not expecting fallout from this one (as usual),
but it's something to watch nevertheless.
The second change having a chance to be visible is that ACPI video
will now default to using native backlight rather than the ACPI
backlight interface which should generally help systems with broken
Win8 BIOSes. We're hoping that all problems with the native backlight
handling that we had previously have been addressed and we are in a
good enough shape to flip the default, but this change should be easy
enough to revert if need be.
In addition to that, the system suspend core has a new mechanism to
allow runtime-suspended devices to stay suspended throughout system
suspend/resume transitions if some extra conditions are met
(generally, they are related to coordination within device hierarchy).
However, enabling this feature requires cooperation from the bus type
layer and for now it has only been implemented for the ACPI PM domain
(used by ACPI-enumerated platform devices mostly today).
Also, the acpidump utility that was previously shipped as a separate
tool will now be provided by the upstream ACPICA along with the rest
of ACPICA code, which will allow it to be more up to date and better
supported, and we have one new cpuidle driver (ARM clps711x).
The rest is improvements related to certain specific use cases,
cleanups and fixes all over the place.
Specifics:
- ACPICA update to upstream version 20140424. That includes a number
of fixes and improvements related to things like GPE handling,
table loading, headers, memory mapping and unmapping, DSDT/SSDT
overriding, and the Unload() operator. The acpidump utility from
upstream ACPICA is included too. From Bob Moore, Lv Zheng, David
Box, David Binderman, and Colin Ian King.
- Fixes and cleanups related to ACPI video and backlight interfaces
from Hans de Goede. That includes blacklist entries for some new
machines and using native backlight by default.
- ACPI device enumeration changes to create platform devices rather
than PNP devices for ACPI device objects with _HID by default. PNP
devices will still be created for the ACPI device object with
device IDs corresponding to real PNP devices, so that change should
not break things left and right, and we're expecting to see more
and more ACPI-enumerated platform devices in the future. From
Zhang Rui and Rafael J Wysocki.
- Updates for the ACPI LPSS (Low-Power Subsystem) driver allowing it
to handle system suspend/resume on Asus T100 correctly. From
Heikki Krogerus and Rafael J Wysocki.
- PM core update introducing a mechanism to allow runtime-suspended
devices to stay suspended over system suspend/resume transitions if
certain additional conditions related to coordination within device
hierarchy are met. Related PM documentation update and ACPI PM
domain support for the new feature. From Rafael J Wysocki.
- Fixes and improvements related to the "freeze" sleep state. They
affect several places including cpuidle, PM core, ACPI core, and
the ACPI battery driver. From Rafael J Wysocki and Zhang Rui.
- Miscellaneous fixes and updates of the ACPI core from Aaron Lu,
Bjørn Mork, Hanjun Guo, Lan Tianyu, and Rafael J Wysocki.
- Fixes and cleanups for the ACPI processor and ACPI PAD (Processor
Aggregator Device) drivers from Baoquan He, Manuel Schölling, Tony
Camuso, and Toshi Kani.
- System suspend/resume optimization in the ACPI battery driver from
Lan Tianyu.
- OPP (Operating Performance Points) subsystem updates from Chander
Kashyap, Mark Brown, and Nishanth Menon.
- cpufreq core fixes, updates and cleanups from Srivatsa S Bhat,
Stratos Karafotis, and Viresh Kumar.
- Updates, fixes and cleanups for the Tegra, powernow-k8, imx6q,
s5pv210, nforce2, and powernv cpufreq drivers from Brian Norris,
Jingoo Han, Paul Bolle, Philipp Zabel, Stratos Karafotis, and
Viresh Kumar.
- intel_pstate driver fixes and cleanups from Dirk Brandewie, Doug
Smythies, and Stratos Karafotis.
- Enabling the big.LITTLE cpufreq driver on arm64 from Mark Brown.
- Fix for the cpuidle menu governor from Chander Kashyap.
- New ARM clps711x cpuidle driver from Alexander Shiyan.
- Hibernate core fixes and cleanups from Chen Gang, Dan Carpenter,
Fabian Frederick, Pali Rohár, and Sebastian Capella.
- Intel RAPL (Running Average Power Limit) driver updates from Jacob
Pan.
- PNP subsystem updates from Bjorn Helgaas and Fabian Frederick.
- devfreq core updates from Chanwoo Choi and Paul Bolle.
- devfreq updates for exynos4 and exynos5 from Chanwoo Choi and
Bartlomiej Zolnierkiewicz.
- turbostat tool fix from Jean Delvare.
- cpupower tool updates from Prarit Bhargava, Ramkumar Ramachandra
and Thomas Renninger.
- New ACPI ec_access.c tool for poking at the EC in a safe way from
Thomas Renninger"
* tag 'pm+acpi-3.16-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (187 commits)
ACPICA: Namespace: Remove _PRP method support.
intel_pstate: Improve initial busy calculation
intel_pstate: add sample time scaling
intel_pstate: Correct rounding in busy calculation
intel_pstate: Remove C0 tracking
PM / hibernate: fixed typo in comment
ACPI: Fix x86 regression related to early mapping size limitation
ACPICA: Tables: Add mechanism to control early table checksum verification.
ACPI / scan: use platform bus type by default for _HID enumeration
ACPI / scan: always register ACPI LPSS scan handler
ACPI / scan: always register memory hotplug scan handler
ACPI / scan: always register container scan handler
ACPI / scan: Change the meaning of missing .attach() in scan handlers
ACPI / scan: introduce platform_id device PNP type flag
ACPI / scan: drop unsupported serial IDs from PNP ACPI scan handler ID list
ACPI / scan: drop IDs that do not comply with the ACPI PNP ID rule
ACPI / PNP: use device ID list for PNPACPI device enumeration
ACPI / scan: .match() callback for ACPI scan handlers
ACPI / battery: wakeup the system only when necessary
power_supply: allow power supply devices registered w/o wakeup source
...
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git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator into next
Pull regulator updates from Mark Brown:
"The bulk of the changes for this release are a few new drivers however
there are a couple of noticable core changes and the usual stream of
cleanups and fixes:
- move disable of unused regulators later in init so it comes after
deferred probe has iterated making startup smoother.
- fixes to reference counting of the DT nodes for constraints from
Charles Keepax. This has little practical impact since all real
users of the regulator bindings use FDT which doesn't need the
reference counting.
- lots of cleanups, especially to the Samsung drivers.
- support for Linear Technologies LTC3589, Texas Instruments
TPS658640 and X-Powers AXP20x"
* tag 'regulator-v3.16' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator: (64 commits)
regulator: pbias: remove unnecessary OOM messages
regulator: max8649: remove unnecessary OOM messages
regulator: core: Fix the init of DT defined fixed regulators
regulator: core: Disable unused regulators after deferred probing is done
regulator: Don't disable unused regulators we don't have permission for
regulator: axp20x: Use regulator_map_voltage_ascend for LDO4
regulator: use of_property_read_{bool|u32}()
regulator: Fix regulator_get_{optional,exclusive}() documentation
regulators: Add definition of regulator_set_voltage_time() for !CONFIG_REGULATOR
regulator: arizona-ldo1: add missing #include
regulator: pfuze100: Support enable/disable for fixed regulator
regulator: ltc3589: Remove ltc3589_list_voltage_fixed function
regulator: ltc3589: Fix module dependency
regulator: tps6586x: Remove unused to_tps6586x_dev() function
regulator: tps65218: Convert to use regulator_set_voltage_time_sel
regulator: tps6586x: Add support for the TPS658640
regulator: tps6586x: Prepare supporting fixed regulators
regulator: pfuze100: Don't allocate an invalid gpio
regulator: pfuze100: Support SWB enable/disable
regulator: fixed: use of_property_read_{bool|u32}()
...
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git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc into next
Pull char/misc driver patches from Greg KH:
"Here is the big char / misc driver update for 3.16-rc1.
Lots of different driver updates for a variety of different drivers
and minor driver subsystems.
All have been in linux-next with no reported issues"
* tag 'char-misc-3.16-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (79 commits)
hv: use correct order when freeing monitor_pages
spmi: of: fixup generic SPMI devicetree binding example
applicom: dereferencing NULL on error path
misc: genwqe: fix uninitialized return value in genwqe_free_sync_sgl()
miscdevice.h: Simple syntax fix to make pointers consistent.
MAINTAINERS: Add miscdevice.h to file list for char/misc drivers.
mcb: Add support for shared PCI IRQs
drivers: Remove duplicate conditionally included subdirs
misc: atmel_pwm: only build for supported platforms
mei: me: move probe quirk to cfg structure
mei: add per device configuration
mei: me: read H_CSR after asserting reset
mei: me: drop harmful wait optimization
mei: me: fix hw ready reset flow
mei: fix memory leak of mei_clients array
uio: fix vma io range check in mmap
drivers: uio_dmem_genirq: Fix memory leak in uio_dmem_genirq_probe()
w1: do not unlock unheld list_mutex in __w1_remove_master_device()
w1: optional bundling of netlink kernel replies
connector: allow multiple messages to be sent in one packet
...
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Conflicts:
arch/mips/loongson/lemote-2f/clock.c
drivers/cpufreq/intel_pstate.c
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Update the default value to match the patch.
Signed-off-by: Richard Fitzgerald <rf@opensource.wolfsonmicro.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
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module_i2c_driver simplifies the code by eliminating
boilerplate code.
Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
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Failure to terminate this match table can lead to boot failures
depending on where the compiler places the match table.
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
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A check for CONFIG_DBX500_PRCMU_DEBUG was added in v3.6. But there's no
Kconfig symbol DBX500_PRCMU_DEBUG. So remove this check.
Signed-off-by: Paul Bolle <pebolle@tiscali.nl>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
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abx500_dump_all_banks() has no callers in the kernel, so it's probably
safe to remove it.
Cc: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
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Update the addresses and names to match current silicon.
The WM8997 regmap tables have been adjusted to match the new
names.
Missing registers have been added to WM5110 default value table.
Signed-off-by: Richard Fitzgerald <rf@opensource.wolfsonmicro.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
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drivers/mfd/max14577.c:334:25:
warning: cast from pointer to integer of different size
max14577->dev_type = (unsigned int)of_id->data;
^
Signed-off-by: Lee Jones <lee.jones@linaro.org>
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On ARM Chromebooks we have a few devices that are accessed by both the
AP (the main "Application Processor") and the EC (the Embedded
Controller). These are:
* The battery (sbs-battery).
* The power management unit tps65090.
On the original Samsung ARM Chromebook these devices were on an I2C
bus that was shared between the AP and the EC and arbitrated using
some extranal GPIOs (see i2c-arb-gpio-challenge).
The original arbitration scheme worked well enough but had some
downsides:
* It was nonstandard (not using standard I2C multimaster)
* It only worked if the EC-AP communication was I2C
* It was relatively hard to debug problems (hard to tell if i2c issues
were caused by the EC, the AP, or some device on the bus).
On the HP Chromebook 11 the design was changed to:
* The AP/EC comms were still i2c, but the battery/tps65090 were no
longer on the bus used for AP/EC communication. The battery was
exposed to the AP through a limited i2c tunnel and tps65090 was
exposed to the AP through a custom Linux driver.
On the Samsung ARM Chromebook 2 the scheme is changed yet again, now:
* The AP/EC comms are now using SPI for faster speeds.
* The EC's i2c bus is exposed to the AP through a full i2c tunnel.
The upstream "tegra124-venice2" uses the same scheme as the Samsung
ARM Chromebook 2, though it has a different set of components on the
other side of the bus.
This driver supports the scheme used by the Samsung ARM Chromebook 2.
Future patches to this driver could add support for the battery tunnel
on the HP Chromebook 11 (and perhaps could even be used to access
tps65090 on the HP Chromebook 11 instead of using a special driver,
but I haven't researched that enough).
Signed-off-by: Vincent Palatin <vpalatin@chromium.org>
Signed-off-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Doug Anderson <dianders@chromium.org>
Reviewed-by: Wolfram Sang <wsa@the-dreams.de>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
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This just updates include/linux/mfd/cros_ec_commands.h to match the
latest EC version (which is the One True Source for such things). See
<https://chromium.googlesource.com/chromiumos/platform/ec>
[dianders: took today's ToT version from the Chromium OS EC; deleted
references to cros_ec_dev and cros_ec_lpc since those aren't upstream
yet]
Signed-off-by: Bill Richardson <wfrichar@chromium.org>
Signed-off-by: Doug Anderson <dianders@chromium.org>
Reviewed-by: Simon Glass <sjg@chromium.org>
Tested-by: Andrew Bresticker <abrestic@chromium.org>
Tested-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
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We're adding i2c tunneling to the list of things that goes over
cros_ec. i2c tunneling can be slooooooow, so increase our deadline to
100ms to account for that.
Signed-off-by: Doug Anderson <dianders@chromium.org>
Reviewed-by: Simon Glass <sjg@chromium.org>
Tested-by: Andrew Bresticker <abrestic@chromium.org>
Tested-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
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The cros_ec_spi transfer had two problems with its timeout code:
1. It looked at the timeout even in the case that it found valid data.
2. If the cros_ec_spi code got switched out for a while, it's possible
it could get a timeout after a single loop. Let's be paranoid and
make sure we do one last transfer after the timeout expires.
Signed-off-by: Doug Anderson <dianders@chromium.org>
Reviewed-by: Simon Glass <sjg@chromium.org>
Tested-by: Andrew Bresticker <abrestic@chromium.org>
Tested-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
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The main transfer function for cros_ec_spi can be called by more than
one client at a time. Make sure that those clients don't stomp on
each other by locking the bus for the duration of the transfer
function.
Signed-off-by: Doug Anderson <dianders@chromium.org>
Reviewed-by: Simon Glass <sjg@chromium.org>
Tested-by: Andrew Bresticker <abrestic@chromium.org>
Tested-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
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To avoid spamming the EC we calculate the time between the previous
transfer and the current transfer and force a delay if the time delta
is too small.
However, a small miscalculation causes the delay period to be
far too short. Most noticably this impacts commands with a long
turnaround time such as EC firmware reads and writes.
Signed-off-by: David Hendricks <dhendrix@chromium.org>
Signed-off-by: Doug Anderson <dianders@chromium.org>
Reviewed-by: Simon Glass <sjg@chromium.org>
Tested-by: Andrew Bresticker <abrestic@chromium.org>
Tested-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
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Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
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Some output configurations can require a 50Mhz SYSCLK which requires
DCVDD to be 1.8V. This patch adds the registers necessary for
supporting this operational mode.
Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
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Currently, MICVDD only binds because it is both the regulator name and
the consumer name and we will always match against the regulator name
regardless of the consumer device. If the regulator was renamed using
the init_data ASoC will no longer be able to locate the supply, as it
will be looking on the CODEC device where as the MICVDD consumer is on
the Arizona device. Add a mapping as we do for the other regulators.
Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
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mfd_add_devices() expects array of struct mfd_cell to be const.
Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
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Use devm_ioremap_resource() because devm_request_and_ioremap() is
obsoleted by devm_ioremap_resource().
Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
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This adds a driver for the Atmel Microcontroller found on the
iPAQ h3xxx series. This device handles some keys, the
touchscreen, and the battery monitoring.
This is a port of a driver from handhelds.org 2.6.21 kernel,
written by Alessandro Gardich based on Andrew Christians
original HAL-driver. It has been heavily cleaned and
converted to mfd-core by Dmitry Artamonow and rewritten
again for the v3.x series kernels by Linus Walleij,
bringing back some of the functionality lost from Andrew's
original driver.
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Alessandro Gardich <gremlin@gremlin.it>
Signed-off-by: Dmitry Artamonow <mad_soft@inbox.ru>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
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The PRCM (Power/Reset/Clock Management) block exposes several subdevices
in different subsystems (clk, reset ...)
Add basic support for the PRCM unit with clk (AR100, AHB0, and APB0 clks)
and reset controller subdevices.
Other subdevices might be added later (if needed).
Signed-off-by: Boris BREZILLON <boris.brezillon@free-electrons.com>
Acked-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
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mfd_add_devices() expects array of struct mfd_cell to be const.
Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Acked-by: Roger Tseng <rogerable@realtek.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
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Array of struct of_device_id may be be const as expected by
of_platform_populate() call.
Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
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Array of struct of_device_id may be be const as expected by
of_match_table field.
Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
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mfd_add_devices() expects array of struct mfd_cell to be const.
Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
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mfd_add_devices() expects array of struct mfd_cell to be const.
Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Acked-by: Milo Kim <milo.kim@ti.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
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Array of struct of_device_id should be const as expected by both
of_match_table field and of_match_device() call.
Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
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Array of struct of_device_id may be be const as expected by both
of_match_table field and of_match_node() call.
Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
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mfd_add_devices() expects array of struct mfd_cell to be const.
Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Acked-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
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Array of struct of_device_id may be be const as expected by both
of_match_table field and of_match_node() call.
Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
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mfd_add_devices() expects array of struct mfd_cell to be const.
Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
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Array of struct of_device_id may be be const as expected by
of_match_table field.
Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
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Array of struct of_device_id may be be const as expected by
of_match_table field.
Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Reviewed-by: Chanwoo Choi <cw00.choi@samsung.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
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The kempld_devs (array of mfd_cells) can be safely made const.
Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Acked-by: Kevin Strasser <kevin.strasser@linux.intel.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
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Array of struct of_device_id may be be const as expected by both
of_match_table field and of_match_node() call.
Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
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Array of struct of_device_id may be be const as expected by
of_match_table field.
Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
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This patch removes platform data usage for codec and touchscreen
when driver is used with devicetree.
This fixes possible "null pointer dereference" error if DTS uses
"fsl,mc13xxx-uses-codec" or "fsl,mc13xxx-uses-touch" options.
Signed-off-by: Alexander Shiyan <shc_work@mail.ru>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
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