More platforms are to be supported by the AB8500 regulator driver,
so in this patch we prepare for their arrival. Instead of using
the AB8500 settings blindly, we provide an infrastructure where
adding a new platform is as easy as providing a couple of platform
specific data structures.
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Make v6_voltages_uv to be const unsigned int.
Signed-off-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Don't update info->update_val if write to the register fails.
Signed-off-by: Axel Lin <axel.lin@ingics.com>
Acked-by: Bengt Jonsson <bengt.g.jonsson@stericsson.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
The purpose of this patch is to guarantee that ab8500-debug will
record the regulator registers before they are modified by the
ab8500 regulator driver.
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
The USB regulator is controlled by hardware. The software support
was only needed for early hardware (ED) which is no longer supported.
Signed-off-by: Bengt Jonsson <bengt.g.jonsson@stericsson.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Support for HW request is added in the external regulator
driver. A flag in the board configuration can be set to
let HW control the regulator when there is no SW request.
This means that the regulator will be put in high power
mode when there is a SW request and in HW-request mode
otherwise.
Signed-off-by: Bengt Jonsson <bengt.g.jonsson@stericsson.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Reviewed-by: Mattias NILSSON <mattias.i.nilsson@stericsson.com>
Reviewed-by: Jonas ABERG <jonas.aberg@stericsson.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
The ABx500 is capable of controlling three external regulator supplies.
Most commonly on and off are supported, but if an external regulator
chipset or power supply supports high-power and low-power mode settings,
we can control those too.
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Palmas regulator support the different input supply pins for each of
the rails. Fill the regulator info data with their input supply pin
names.
Signed-off-by: Laxman Dewangan <ldewangan@nvidia.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
The issues probably originated from a typo in the initial submission.
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Clean out initialisation that is handled by SoC. Regulator
settings for Vpll (partly), Vsmps1, Vsmps2, Vsmps3 (partly),
Vrf1, Varm, Vape, Vbb, Vmod are cleaned out. They should not
be touched by the kernel.
We also update many of the initialisation values to be more
in-line with the current development efforts of ST-Ericsson
internal engineers.
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
The data sheet does not specify time delay for voltage selection,
thus remove set_voltage_time_sel and delay setting.
Note, currently set_voltage_time_sel callback returns 0 due to missing
delay settings.
Signed-off-by: Axel Lin <axel.lin@ingics.com>
Acked-by: Bengt Jonsson <bengt.g.jonsson@stericsson.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Base on the data provide by Bengt Jönsson, add below enable_time settings:
Worst case enable time from data sheet:
Vana: enable time = 140 us
Vaux1/2: enable time = 200 us
Vaux3: enable time = 450 us
Vintcore: enable time = 750 us
Vamic1/2: enable time = 500 us
Vdmic: enable time = 420 us
VTVout: enable time = 500 us
Vaudio: enable time = 140 us
Vusb: enable time = 150 us
This discussion thread is available at: https://lkml.org/lkml/2013/3/26/795
Signed-off-by: Axel Lin <axel.lin@ingics.com>
Acked-by: Bengt Jonsson <bengt.g.jonsson@stericsson.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
This avoid setting is_enabled flag to wrong status if enable/disable fails.
Signed-off-by: Axel Lin <axel.lin@ingics.com>
Acked-by: Bengt Jonsson <bengt.g.jonsson@stericsson.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Both ab8500_regulator_mode_ops and ab8500_regulator_ops do not have volt_table
setting, thus we can not use regulator_list_voltage_table for them.
However, they have min_uV setting with n_voltages = 1, so use
regulator_list_voltage_linear instead.
Also remove setting set_voltage_time_sel for ab8500_regulator_mode_ops.
It is used only for fixed voltage, so it does not need to implement
set_voltage_time_sel.
Signed-off-by: Axel Lin <axel.lin@ingics.com>
Acked-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Fix below build error:
CC drivers/regulator/ab8500.o
drivers/regulator/ab8500.c:500:23: error: 'ab8500_regulator_fixed_ops' undeclared here (not in a function)
drivers/regulator/ab8500.c: In function 'ab8500_regulator_probe':
drivers/regulator/ab8500.c:972:8: warning: assignment from incompatible pointer type [enabled by default]
make[2]: *** [drivers/regulator/ab8500.o] Error 1
make[1]: *** [drivers/regulator] Error 2
make: *** [drivers] Error 2
Signed-off-by: Axel Lin <axel.lin@ingics.com>
Acked-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
AS3711 regulator OF support only evaluates standard regulator DT
properties.
Signed-off-by: Guennadi Liakhovetski <g.liakhovetski+renesas@gmail.com>
Reviwed-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
The ab8500 MFD should not have knowledge about regulator-
specific platform data like number of regulators and
regulator registers. As the regulator platform data is
about to grow with external regulators, this information
is moved to a new structure provided by the regulator
driver.
Signed-off-by: Bengt Jonsson <bengt.g.jonsson@stericsson.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Reviewed-by: Yvan FILLION <yvan.fillion@stericsson.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
This patch ensures that many of the recent developments pertaining to
the AB8500 regulator device are propagated out into the public arena.
It aims to update some of the existing initialisation values in
accordance with internal ST-Ericsson code submissions. This single
patch was originally a collection of updates which have been squashed
together to aid with clarity.
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
There is already before a register mask in the regulator driver
to allow some bits of a register to be initialized. The register
value is defined in the board configuration. This patch puts a
mask in the board configuration to specify which bits should
actually be altered. The purpose with this patch is to avoid
future mistakes when updating the allowed bits in the regulator
driver.
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
With this change, Vtvout, Vintcore12, Vaux1, 2 and 3 regulators
support DRMS (Dynamic Regulator Mode Switching) which will
dynamically handle requests for max current consumption from
several consumers and select a suitable regulator mode.
Signed-off-by: Bengt Jonsson <bengt.g.jonsson@stericsson.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Reviewed-by: Mattias WALLIN <mattias.wallin@stericsson.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Ludovic Barré <ludovic.barre@stericsson.com>
Signed-off-by: Emeric Vigier <emeric.vigier@stericsson.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Reviewed-by: Bengt JONSSON <bengt.g.jonsson@stericsson.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
This patch supplies access to some extra settings provided by the
AB8500 regulator device. We also update some of the existing
initialisation values in accordance with internal ST-Ericsson code
submissions. This single patch was originally a collection of updates
which have been squashed together to aid with clarity.
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Used PTR_RET function instead of IS_ERR and PTR_ERR.
Patch found using coccinelle.
Signed-off-by: Alexandru Gheorghiu <gheorghiuandru@gmail.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
When palmas regulator probe creates stack dump during initialization
due to some crash, it prints the call trace as follows:
[3.166321] [<c028fa20>] (_regmap_read+0x5c/0xa8) from [<c028fab0>] (regmap_read+0x44/0x5c)
[3.174669] [<c028fab0>] (regmap_read+0x44/0x5c) from [<c023062c>] (palmas_probe+0x240/0x7d0)
[3.183193] [<c023062c>] (palmas_probe+0x240/0x7d0) from [<c0284064>] (platform_drv_probe+0x14/0x18)
[3.192322] [<c0284064>] (platform_drv_probe+0x14/0x18) from [<c0282ee4>] (driver_probe_device+0x104/0x214)
[3.202055] [<c0282ee4>] (driver_probe_device+0x104/0x214) from [<c028167c>] (bus_for_each_drv+0x5c/0x88)
The palmas_probe is current name but it helps on debugging if the
function name is more appropriate to the sub-module name.
Renaming the palmas_probe() to palmas_regulator_probe() and
palmas_remove() to palams_regulator_remove().
Signed-off-by: Laxman Dewangan <ldewangan@nvidia.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
It does not make sense to assign return value of of_property_read_u32() to
pdata->reg_init[idx]->warm_reset. Use of_property_read_bool() to read
"ti,warm-reset" DT property instead which will return correct setting
for pdata->reg_init[idx]->warm_reset.
Signed-off-by: Axel Lin <axel.lin@ingics.com>
Acked-by: Graeme Gregory <gg@slimlogic.co.uk>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Fix the DT parsing to agree with the bindings document. Some small changes
to the value names and also fix the handling of boolean values. They were
previously using prop = 1/0, now just use of_property_read_bool calls.
Signed-off-by: Graeme Gregory <gg@slimlogic.co.uk>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Axel Lin <axel.lin@ingics.com>
Reviewed-by: Haojian Zhuang <haojian.zhuang@gmail.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Axel Lin <axel.lin@ingics.com>
Reviewed-by: Haojian Zhuang <haojian.zhuang@gmail.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Add enable_is_inverted flag to indicate set enable_mask bits to disable
when using regulator_enable_regmap and friends APIs.
Signed-off-by: Axel Lin <axel.lin@ingics.com>
Reviewed-by: Haojian Zhuang <haojian.zhuang@gmail.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
tps6586x_regulator_set_slew_rate() returns -EINVAL when having slew rate
settings for other than SM0/1, thus use dev_err rather than dev_warn.
Signed-off-by: Axel Lin <axel.lin@ingics.com>
Reviewed-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
of_node_put() is called on either branch of a conditional, simplify the
code by only calling it once.
Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Delete successive tests to the same location.
A simplified version of the semantic match that finds this problem is as
follows: (http://coccinelle.lip6.fr/)
// <smpl>
@s exists@
local idexpression y;
expression x,e;
@@
*if ( \(x == NULL\|IS_ERR(x)\|y != 0\) )
{ ... when forall
return ...; }
... when != \(y = e\|y += e\|y -= e\|y |= e\|y &= e\|y++\|y--\|&y\)
*if ( \(x == NULL\|IS_ERR(x)\|y != 0\) )
{ ... when forall
return ...; }
// </smpl>
Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
DT node properties should not have "_". Replacing them by "-".
Signed-off-by: J Keerthy <j-keerthy@ti.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Fixes the following checkpatch warning:
WARNING: Prefer netdev_err(netdev, ... then dev_err(dev, ... then pr_err(... to printk(KERN_ERR ...
Signed-off-by: Thiago Farina <tfarina@chromium.org>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
The info parameter is not used at all, remove it.
Signed-off-by: Axel Lin <axel.lin@ingics.com>
Acked-by: Haojian Zhuang <haojian.zhuang@gmail.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Regulator core driver provides enable GPIO control for enabling/disabling a
regulator. Now, enable GPIO is shared among regulators.
Use this internal working, so unnecessary code are removed.
GPIO enable pin configurations are added in digital LDO and analog LDO drivers.
Signed-off-by: Milo(Woogyom) Kim <milo.kim@ti.com>
Reviewed-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
The regulator_dev has regulator_enable_gpio structure.
'ena_gpio' and 'ena_gpio_invert' were moved to in regulator_enable_gpio.
regulator_dev ---> regulator_enable_gpio
.ena_gpio .gpio
.ena_gpio_invert .ena_gpio_invert
Pointer, 'ena_pin' is used for checking valid enable GPIO pin.
Signed-off-by: Milo(Woogyom) Kim <milo.kim@ti.com>
Reviewed-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
To support shared enable GPIO pin, replace GPIO code with new static functions
Reference count: 'enable_count'
Balance the reference count of each GPIO and actual pin control.
The count is incremented with enabling GPIO.
On the other hand, it is decremented on disabling GPIO.
Actual GPIO pin is enabled at the initial use.(enable_count = 0)
The pin is disabled if it is not used(shared) any more. (enable_count <=1)
Regardless of the enable count, update GPIO state of the regulator.
Signed-off-by: Milo(Woogyom) Kim <milo.kim@ti.com>
Reviewed-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
A Regulator can be enabled by external GPIO pin.
This is configurable in the regulator_config.
At this moment, the GPIO can be owned by only one regulator device.
In some devices, multiple regulators are enabled by shared one GPIO pin.
This patch extends this limitation, enabling shared enable GPIO of regulators.
New list for enable GPIO: 'regulator_ena_gpio_list'
This manages enable GPIO list.
New structure for supporting shared enable GPIO: 'regulator_enable_gpio'
The enable count is used for balancing GPIO control count.
This count is incremented when GPIO is enabled.
On the other hand, it's decremented when GPIO is disabled.
Reference count: 'request_count'
The reference count, 'request_count' is incremented/decremented on
requesting/freeing the GPIO. This count makes sure only free the GPIO
when it has no users.
How it works
If the GPIO is already used, skip requesting new GPIO usage.
The GPIO is new one, request GPIO function and add it to the list of
enable GPIO.
This list is used for balancing enable GPIO count and pin control.
Updating a GPIO and invert code moved
'ena_gpio' and 'ena_gpio_invert' of the regulator_config were moved to
new function, regulator_ena_gpio_request().
Use regulator_enable_pin structure rather than regulator_dev.
Signed-off-by: Milo(Woogyom) Kim <milo.kim@ti.com>
Reviewed-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Unwinding code disables all successfully enabled regulators.
Error is logged for every failed regulator.
Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
TWL6030_FIXED_RESOURCE is not used now, remove it.
TWL6030_FIXED_RESOURCE is not used since commit e76ab829cc
"regulator: twl: Remove references to the twl4030 regulator"
twl6030_fixed_resource is removed by commit 029dd3cef
"regulator: twl: Remove another unused variable warning".
Signed-off-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Since commit ba305e31 "regulator: twl: fix twl4030 support for smps regulators",
VDD1_VSEL_table and VDD2_VSEL_table are not used any more. Remove them.
Signed-off-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
This fixes an inconsistent behavior between list_voltage() and get_voltage()
because current implementation of get_voltage() does not check the case
IS_UNSUP() is true.
Signed-off-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
