Very quiet release here, as well as the usual driver specific updates
only a couple of new things:
- New drivers for TI ABB LDOs and MAX77693 PMICs.
- Support for enabling bypass mode support via device tree.
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Merge tag 'regulator-v3.11' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator
Pull regulator updates from Mark Brown:
"Very quiet release here, as well as the usual driver specific updates
only a couple of new things:
- New drivers for TI ABB LDOs and MAX77693 PMICs
- Support for enabling bypass mode support via device tree"
* tag 'regulator-v3.11' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator: (23 commits)
regulator: max77693: Remove NULL test for rmatch[i].init_data
regulator: max77693: Fix trivial typo
regulator: ab8500-ext: Staticize local symbols
regulator: max77693: Add max77693 regualtor driver.
regulator: max8973: fix a typo in documentation
regulator: max8973: initial DT support
regulators: max8973: fix multiple instance support
regulator: of: Added a property to indicate bypass mode support
regulator: ti-abb: Convert to use devm_ioremap_resource
regulator: tps62360: Fix crash in i2c_driver .probe
regulator: ab8500: Provide supply names for the AUX regulators
regulator: ab8500-ext: Enable for Device Tree
regulator: ab8500-ext: Register as a device in its own right
regulator: ab8500-ext: Provide a set_voltage call-back operation
regulator: ab8500: Ensure AB8500 external registers are probed first
regulator: core: add regulator_get_linear_step()
regulator: lp397x: use devm_kzalloc() to make cleanup paths simpler
regulator: lp872x: support the device tree feature
regulator: Remove unnecessary include of linux/delay.h from regulator drivers
regulator: isl6271a: Use NULL instead of 0
...
These changes from 30 individual branches for the most part update device
tree files, but there are also a few source code changes that have crept
in this time, usually in order to atomically move over a driver from
using hardcoded data to DT probing.
A number of platforms change their DT files to use the C preprocessor,
which is causing a bit of churn, but that is hopefully only this once.
There are a few conflicts with the other branches unfortunately:
* in exynos5440.dtsi and kirkwood-6281.dtsi, device nodes are added
from multiple branches. Need to be careful to have the right
set of closing braces as git gets this one wrong.
* In kirkwood.dtsi, one 'ranges' line got split into two lines, while
another line got added. Order of the lines does not matter.
* in sama5d3.dtsi, some cleanup was merged the wrong way, causing
a bogus conflict. We want the 'dmas' and 'dma-names' properties
to get added here.
* Two lines got removed independently in arch/arm/mach-mxs/mach-mxs.c
* Contents get added independently in arch/arm/mach-omap2/cclock33xx_data.c
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Merge tag 'dt-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull ARM SoC device tree changes from Arnd Bergmann:
"These changes from 30 individual branches for the most part update
device tree files, but there are also a few source code changes that
have crept in this time, usually in order to atomically move over a
driver from using hardcoded data to DT probing.
A number of platforms change their DT files to use the C preprocessor,
which is causing a bit of churn, but that is hopefully only this once"
* tag 'dt-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (372 commits)
ARM: at91: dt: rm9200ek: add spi support
ARM: at91: dt: rm9200: add spi support
ARM: at91/DT: at91sam9n12: add SPI DMA client infos
ARM: at91/DT: sama5d3: add SPI DMA client infos
ARM: at91/DT: fix SPI compatibility string
ARM: Kirkwood: Fix the internal register ranges translation
ARM: dts: bcm281xx: change comment to C89 style
ARM: mmc: bcm281xx SDHCI driver (dt mods)
ARM: nomadik: add the new clocks to the device tree
clk: nomadik: implement the Nomadik clocks properly
ARM: dts: omap5-uevm: Provide USB Host PHY clock frequency
ARM: dts: omap4-panda: Fix DVI EDID reads
ARM: dts: omap4-panda: Add USB Host support
arm: mvebu: enable mini-PCIe connectors on Armada 370 RD
ARM: shmobile: irqpin: add a DT property to enable masking on parent
ARM: dts: AM43x EPOS EVM support
ARM: dts: OMAP5: Add bandgap DT entry
ARM: dts: AM33XX: Add pinmux configuration for CPSW to am335x EVM
ARM: dts: AM33XX: Add pinmux configuration for CPSW to EVMsk
ARM: dts: AM33XX: Add pinmux configuration for CPSW to beaglebone
...
The implementation in of_regulator_match() already ensures match->init_data is
not NULL for all matched cases if the return value of of_regulator_match() > 0.
Thus remove NULL test for rmatch[i].init_data.
This patch also fixes the condition for loop iteration.
The for loop should iterate "matched" times rather than ARRAY_SIZE(regulators)
because we only allocate "matched" number of entries for rdata.
Though in most cases, "matched" == ARRAY_SIZE(regulators).
Signed-off-by: Axel Lin <axel.lin@ingics.com>
Acked-by: Jonghwa Lee <jonghwa3.lee@samsung.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
Fix trivial typo in the equation to check upper bound of current setting.
Signed-off-by: Axel Lin <axel.lin@ingics.com>
Acked-by: Jonghwa Lee <jonghwa3.lee@samsung.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
Local symbols used only in this file are made static.
Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Mark Brown <broonie@linaro.org>
This patch adds new regulator driver to support max77693 chip's regulators.
max77693 has two linear voltage regulators and one current regulator which
can be controlled through I2C bus. This driver also supports device tree.
Signed-off-by: Jonghwa Lee <jonghwa3.lee@samsung.com>
Signed-off-by: Myungjoo Ham <myungjoo.ham@samsung.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
This patch adds primitive DT support to the max8973 regulator driver. None
of the configuration parameters, supported in the platform data are yet
available in DT, therefore no configuration is performed if booting with
no platform data. This means, that DT instantiation can only be used on
boards, where no run-time configuration of the chip is required. In such
cases the driver can be used to scale its output voltage. In the future
support for configuration parameters should be added.
Signed-off-by: Guennadi Liakhovetski <g.liakhovetski+renesas@gmail.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
Change the device name of the regulator function to the one chosen for
MODULE_ALIAS. This fixes kernel auto-module loading for the regulator function.
Signed-off-by: Marc Dietrich <marvin24@gmx.de>
Signed-off-by: Mark Brown <broonie@linaro.org>
Currently the max8973 regulator driver uses a single static struct of
regulator operations for all chip instances, but can overwrite some of its
members depending on configuration. This will affect all other MAX8973
instances on the system. This patch fixes this bug by allocating a separate
copy of the struct for each chip instance.
Signed-off-by: Guennadi Liakhovetski <g.liakhovetski+renesas@gmail.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
Added a property to indicate if the regulator supports bypass mode.
Also modified of_get_regulation_constraints() to check for that
property and set appropriate constraints.
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
Commit 75096579c3 ("lib: devres: Introduce devm_ioremap_resource()")
introduced devm_ioremap_resource() and deprecated the use of
devm_request_and_ioremap().
While at it, remove the error message as devm_ioremap_resource prints a similar
error message.
Signed-off-by: Tushar Behera <tushar.behera@linaro.org>
Signed-off-by: Mark Brown <broonie@linaro.org>
Commit "i2c: core: make it possible to match a pure device tree driver"
changed semantics of the i2c probing for device tree devices.
Device tree probed devices now get a NULL i2c_device_id pointer.
This caused kernel panics due to NULL dereference.
Tested-by: Stephen Warren <swarren@nvidia.com>
Reviewed-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Tuomas Tynkkynen <ttynkkynen@nvidia.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
- Fix for the thermal node to be contained in the PRCMU node
- Add the DTS and auxdata needed to boot the U8540 platform
- Various regulators added and renamed
- Rename base SoC node
- A bunch of DMA patches adding channels for DT boots
- A bunch of crypto+hash patches adding config for DT boots
- A bunch of patches fixing the ALSA SoC support to work
- Register the LP5521 LEDs
- Fix a number of typos and naming errors
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Merge tag 'ux500-dt-for-arm-soc' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-stericsson into next/dt
From Linus Walleij:
Device tree patches for ux500, basically trees and auxdata:
- Fix for the thermal node to be contained in the PRCMU node
- Add the DTS and auxdata needed to boot the U8540 platform
- Various regulators added and renamed
- Rename base SoC node
- A bunch of DMA patches adding channels for DT boots
- A bunch of crypto+hash patches adding config for DT boots
- A bunch of patches fixing the ALSA SoC support to work
- Register the LP5521 LEDs
- Fix a number of typos and naming errors
* tag 'ux500-dt-for-arm-soc' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-stericsson: (39 commits)
ARM: ux500: drop any 0x prefix from I2C DT devices
ARM: ux500: Allocate correct amount of memory for the u8540 in DT
ARM: ux500: Provide auxdata to ux500 ASoC driver
ARM: ux500: Add DT regulators for ab8500-codec
ARM: ux500: Correct anamic2 typo in DT files
ARM: ux500: Fix trivial typo in v-anamic1 comment
ARM: ux500: Reduce PRCMU reg-names to shorter form for u8540 DT
ARM: ux500: Add an auxdata entry for MUSB for clock-name look-up
ARM: ux500: cut chip-select GPIOs from SSP device
ARM: ux500: use symbolic names for interrupt flags
ARM: ux500: use #include syntax to include *.dtsi.
ARM: ux500: bump MMC/SD max frequency for DT boots
ARM: ux500: Apply other compatible name to the u8540 DTS file
pinctrl/nomadik: Standardise Pinctrl compat string for DBx5x based platforms
ARM: ux500: Standardise Pinctrl compatible string for DBx5x based platforms
ARM: ux500: Standardise DBx5x0 based Pinctrl compat string in the DTS
crypto: ux500/hash - Enable DT probing of the driver
crypto: ux500/cryp - Enable DT probing of the driver
ARM: ux500: enable the crypto and hash on all dbx500
ARM: ux500: Provide an AUXDATA entry for ux500-hash
...
Signed-off-by: Olof Johansson <olof@lixom.net>
On some platforms the AUX[1|2|3] regulators are supplied voltage by
a separate regulator. For example on Snowball these are provided by
the EXT3. If we list them here, we can supply voltage to them by
simply listing them in as a consumer of EXT3 in the Snowball case.
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Mark Brown <broonielinaro.org>
Here we use the OF regulator match facility to collect and populate
initialisation data from Device Tree if we're booting with it enabled.
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Mark Brown <broonielinaro.org>
Some platforms don't support the AB8500 external regulators, so instead
of having a list of is_<platform>() calls prior to calling
ab8500_ext_regulator_init() from ab8500_regulator_probe(), we can only
register as a platform device on platforms which require them. It means
we also have more control over them when booting with Device Tree.
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Mark Brown <broonielinaro.org>
When registering regulators which have a single voltage through Device
Tree, the framework insists that the specified voltage is actually set.
Well in order to do that we need to provide this call-back, where we
check that the value is sane and return without error. Not that the
selector isn't populated, but in our case list_voltage doesn't actually
use it, so we're good.
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Mark Brown <broonie@linaro.org>
This patch changes the order in which the AB8500 regulator drivers are
registered and subsequently probed. It saves a lot of -EPROBE_DEFEER
nonsense and bootlog noise, as some AB8500 core regulators depend on
the external ones for supply voltage.
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Mark Brown <broonie@linaro.org>
Add regulator_get_linear_step(), which returns the voltage step size
between VSEL values for linear regulators. This is intended for use
by regulator consumers which build their own voltage-to-VSEL tables.
Signed-off-by: Paul Walmsley <pwalmsley@nvidia.com>
Reviewed-by: Andrew Chew <achew@nvidia.com>
Cc: Matthew Longnecker <mlongnecker@nvidia.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
Fix typo of VAMIC2 LDO regulator name in some DT-related files. This
patch replaces all occurrences with the right name.
Signed-off-by: Fabio Baltieri <fabio.baltieri@linaro.org>
Acked-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
regulator_enable_regmap() uses enable_reg to enable the regulator.
But enable_reg for smps10 points to SMPS10_STATUS which is a
read-only register. Fixed the same by having enable_reg
set to SMPS10_CTRL.
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Cc: stable@vger.kernel.org
Since 'id' cannot take two values at the same time, the condition
should probably be an OR (||) instead of AND (&&).
Introduced by commit 28d1e8cd67 ("regulator: palma: add ramp delay
support through regulator constraints").
Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
This patch enables the DT structure of the LP8720 and LP8725 device.
The LP872x platform data is generated when the device tree is configured.
Even if the platform data is NULL, it is no issue at all because the driver is
configured with the default mode.
Signed-off-by: Milo(Woogyom) Kim <milo.kim@ti.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
All the drivers that need delay for the regulator voltage output voltage to
stabilize after being enabled or after being set to a new value has been
converted to implement enable_time and set_voltage_time_sel callbacks.
Then regulator core will take care of the necessary delay.
This patch removes the unneeded include of linux/delay.h in regulator drivers.
Signed-off-by: Axel Lin <axel.lin@ingics.com>
Cc: Daniel Jeong <daniel.jeong@ti.com>
Cc: Sangbeom Kim <sbkim73@samsung.com>
Cc: Chiwoong Byun <woong.byun@samsung.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
init_data is a pointer. Use NULL instead of 0.
Silences the following sparse warning:
drivers/regulator/isl6271a-regulator.c:133:44:
warning: Using plain integer as NULL pointer
Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Since 0998d06310 "device-core: Ensure drvdata = NULL when no driver is bound",
this is done by driver core after device_release or on probe failure.
Thus we can remove all platform_set_drvdata(pdev, NULL) in drivers.
Signed-off-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
abb->current_info_idx is used as array subscript to access volt_table,
thus the valid value range should be 0 ... desc->n_voltages - 1.
Signed-off-by: Axel Lin <axel.lin@ingics.com>
Acked-by: Nishanth Menon <nm@ti.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Adaptive Body Biasing (ABB) modulates transistor bias voltages
dynamically in order to optimize switching speed versus leakage.
Texas Instruments' SmartReflex 2 technology provides support for this
power management technique with Forward Body Biasing (FBB) and Reverse
Body Biasing (RBB). These modulate the body voltage of transistor
cells or blocks dynamically to gain performance and reduce leakage.
TI's SmartReflex white paper[1] has further information for usage in
conjunction with other power management techniques.
The application of FBB/RBB technique is determined for each unique
device in some process nodes, whereas, they are mandated on other
process nodes.
In a nutshell, ABB technique is implemented on TI SoC as an on-chip
LDO which has ABB module controlling the bias voltage. However, the
voltage is unique per device. These vary per SoC family and the manner
in which these techniques are used may vary depending on the Operating
Performance Point (OPP) voltage targeted. For example:
OMAP3630/OMAP4430: certain OPPs mandate usage of FBB independent of
devices.
OMAP4460/OMAP4470: certain OPPs mandate usage of FBB, while others may
optionally use FBB or optimization with RBB.
OMAP5: ALL OPPs may optionally use ABB, and ABB biasing voltage is
influenced by vset fused in s/w and requiring s/w override of
default values.
Further, two generations of ABB module are used in various TI SoCs.
They have remained mostly register field compatible, however the
register offset had switched between versions.
We introduce ABB LDO support in the form of a regulator which is
controlled by voltages denoting the desired Operating Performance
Point which is targeted. However, since ABB transition is part of OPP
change sequence, the sequencing required to ensure sane operation
w.r.t OPP change is left to the controlling driver (example: cpufreq
SoC driver) using standard regulator operations.
The driver supports all ABB modes and ability to override ABB LDO vset
control efuse based ABB mode detection etc.
Current implementation is heavily influenced by the original patch
series [2][3] from Mike Turquette. However, the current implementation
supports only device tree based information.
[1] http://www.ti.com/pdfs/wtbu/smartreflex_whitepaper.pdf
[2] http://marc.info/?l=linux-omap&m=134931341818379&w=2
[3] http://marc.info/?l=linux-arm-kernel&m=134931402406853&w=2
[nm@ti.com: co-developer]
Signed-off-by: Nishanth Menon <nm@ti.com>
Signed-off-by: Andrii.Tseglytskyi <andrii.tseglytskyi@ti.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
GENERIC_GPIO now synonymous with GPIOLIB. There are no longer any valid
cases for enableing GENERIC_GPIO without GPIOLIB, even though it is
possible to do so which has been causing confusion and breakage. This
branch does the work to completely eliminate GENERIC_GPIO.
However, it is not trivial to just create a branch to remove it. Over
the course of the v3.9 cycle more code referencing GENERIC_GPIO has been
added to linux-next that conflicts with this branch. The following must
be done to resolve the conflicts when merging this branch into mainline:
* "git grep CONFIG_GENERIC_GPIO" should return 0 hits. Matches should be
replaced with CONFIG_GPIOLIB
* "git grep '\bGENERIC_GPIO\b'" should return 1 hit in the Chinese
documentation.
* Selectors of GENERIC_GPIO should be turned into selectors of GPIOLIB
* definitions of the option in architecture Kconfig code should be deleted.
Stephen has 3 merge fixup patches[1] that do the above. They are currently
applicable on mainline as of May 2nd.
[1] http://www.mail-archive.com/linux-kernel@vger.kernel.org/msg428056.html
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Merge tag 'gpio-for-linus' of git://git.secretlab.ca/git/linux
Pull removal of GENERIC_GPIO from Grant Likely:
"GENERIC_GPIO now synonymous with GPIOLIB. There are no longer any
valid cases for enableing GENERIC_GPIO without GPIOLIB, even though it
is possible to do so which has been causing confusion and breakage.
This branch does the work to completely eliminate GENERIC_GPIO."
* tag 'gpio-for-linus' of git://git.secretlab.ca/git/linux:
gpio: update gpio Chinese documentation
Remove GENERIC_GPIO config option
Convert selectors of GENERIC_GPIO to GPIOLIB
blackfin: force use of gpiolib
m68k: coldfire: use gpiolib
mips: pnx833x: remove requirement for GENERIC_GPIO
openrisc: default GENERIC_GPIO to false
avr32: default GENERIC_GPIO to false
xtensa: remove explicit selection of GENERIC_GPIO
sh: replace CONFIG_GENERIC_GPIO by CONFIG_GPIOLIB
powerpc: remove redundant GENERIC_GPIO selection
unicore32: default GENERIC_GPIO to false
unicore32: remove unneeded select GENERIC_GPIO
arm: plat-orion: use GPIO driver on CONFIG_GPIOLIB
arm: remove redundant GENERIC_GPIO selection
mips: alchemy: require gpiolib
mips: txx9: change GENERIC_GPIO to GPIOLIB
mips: loongson: use GPIO driver on CONFIG_GPIOLIB
mips: remove redundant GENERIC_GPIO select
power_state_active_get is used only in this file. Make it static.
While at it also move this function definition inside the
CONFIG_REGULATOR_DEBUG macro as it is called only from within it.
This also avoids further build warning related to unused definition.
Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Add a couple kernel-doc lines to get rid of kernel-doc generation
warnings, no functional change.
Signed-off-by: Robert P. J. Day <rpjday@crashcourse.ca>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
