AXP22x has also some different register map than axp20x, they're also
added here.
Signed-off-by: NIcenowy Zheng <icenowy@aosc.xyz>
Signed-off-by: NLee Jones <lee.jones@linaro.org>

The X-Powers AXP806 is a new PMIC that is paired with Allwinner's A80
SoC, along with a master AXP809 PMIC.

This PMIC has a new register layout, and supports some functions not
seen in other X-Powers PMICs, such as master-slave mode, or having
multiple AXP806 PMICs on the same bus with address space extension,
or supporting both I2C and RSB mode. I2C has not been tested.

This patch adds support for the interrupts of the PMIC. A regulator
sub-device is enabled, but actual regulator support will come in a
later patch.
Signed-off-by: NChen-Yu Tsai <wens@csie.org>
Signed-off-by: NLee Jones <lee.jones@linaro.org>

The X-Powers AXP809 is a new PMIC that is paired with Allwinner's A80
SoC, along with a slave AXP806 PMIC.

This PMIC is quite similar to the earlier AXP223, though the interrupts
and regulator have changed a bit.

This patch adds support for the interrupts and power button of the PMIC.
Signed-off-by: NChen-Yu Tsai <wens@csie.org>
Signed-off-by: NLee Jones <lee.jones@linaro.org>

The AXP223 is a new PMIC commonly paired with Allwinner A23/A33 SoCs.
It is functionally identical to AXP221; only the regulator default
voltage/status and the external host interface are different.
Signed-off-by: NChen-Yu Tsai <wens@csie.org>
Signed-off-by: NLee Jones <lee.jones@linaro.org>

The axp20x driver assumes the device is i2c based. This is not the
case with later chips, which use a proprietary 2 wire serial bus
by Allwinner called "Reduced Serial Bus".

This patch follows the example of mfd/wm831x and splits it into
an interface independent core, and an i2c specific glue layer.
MFD_AXP20X and the new MFD_AXP20X_I2C are changed to tristate
symbols, allowing the driver to be built as modules.

Whitespace and other style errors in the moved i2c specific code
have been fixed. Included but unused header files are removed as
well.
Signed-off-by: NChen-Yu Tsai <wens@csie.org>
Signed-off-by: NLee 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: NLee Jones <lee.jones@linaro.org>
Signed-off-by: NBruno Prémont <bonbons@linux-vserver.org>
Signed-off-by: NHans de Goede <hdegoede@redhat.com>
Signed-off-by: NSebastian Reichel <sre@kernel.org>

Add an extra set of registers which is necessary tu support the PMICs
battery charger function, and mark registers which contain status bits,
gpio status, and adc readings as volatile.
Signed-off-by: NBruno Prémont <bonbons@linux-vserver.org>
Signed-off-by: NHans de Goede <hdegoede@redhat.com>
Acked-by: NMaxime Ripard <maxime.ripard@free-electrons.com>
Signed-off-by: NLee Jones <lee.jones@linaro.org>

The axp152 is a stripped down version of the axp202 pmic with the battery
charging function removed as it is intended for top-set boxes.
Signed-off-by: NMichal Suchanek <hramrach@gmail.com>
Signed-off-by: NHans de Goede <hdegoede@redhat.com>
Signed-off-by: NLee Jones <lee.jones@linaro.org>

This patch adds new power supply charger driver support
for X-Power AXP288 PMIC integrated charger.

This driver interfaces with the axp20x mfd driver as a cell
and listens to extcon cable events for setting up charging.
Signed-off-by: NRamakrishna Pallala <ramakrishna.pallala@intel.com>
Acked-by: NLee Jones <lee.jones@linaro.org>
Signed-off-by: NSebastian Reichel <sre@kernel.org>

This patch adds the extcon support for AXP288 PMIC which
has the BC1.2 charger detection capability. Additionally
it also adds the USB mux switching support b/w SOC and PMIC
based on GPIO control.
Signed-off-by: NRamakrishna Pallala <ramakrishna.pallala@intel.com>
Acked-by: NLee Jones <lee.jones@linaro.org>
[cw00.choi: Modify the log message to keep the consistent log message pattern]
Signed-off-by: NChanwoo Choi <cw00.choi@samsung.com>

Add support for the AXP22x PMIC devices to the existing AXP20x driver.
This includes the AXP221 and AXP223, which are identical except for
the external data bus. Only AXP221 is added for now. AXP223 will be
added after it's Reduced Serial Bus (RSB) interface is supported.

AXP22x defines a new set of registers, power supplies and regulators,
but most of the API is similar to the AXP20x ones.

A new irq chip definition is used, even though the available interrupts
on AXP22x is a subset of those on AXP20x. This is done so the interrupt
numbers match those on the datasheet.

This patch only enables the interrupts, system power-off function, and PEK
sub-device. The regulator driver must first support different variants
before we enable it from the mfd driver.
Signed-off-by: NBoris BREZILLON <boris.brezillon@free-electrons.com>
[wens@csie.org: fix interrupts and move regulators to separate patch]
Signed-off-by: NChen-Yu Tsai <wens@csie.org>
Signed-off-by: NLee Jones <lee.jones@linaro.org>

mfd/axp20x: add support for fuel gauge cell

Register definitions and platform data structure
for fuel gauge cell devices.
Signed-off-by: NTodd Brandt <todd.e.brandt@intel.com>
Acked-by: NJacob Pan <jacob.jun.pan@linux.intel.com>
Signed-off-by: NLee Jones <lee.jones@linaro.org>

X-Powers AXP288 is a customized PMIC for Intel Baytrail-CR platforms. Similar
to AXP202/209, AXP288 comes with USB charger, more LDO and BUCK channels, and
AD converters. It also provides extended status and interrupt reporting
capabilities than the devices currently supported in axp20x.c.

In addition to feature extension, this patch also adds ACPI binding for
enumeration.

This consolidated driver should support more X-Powers' PMICs in both device
tree and ACPI enumerated platforms.
Signed-off-by: NJacob Pan <jacob.jun.pan@linux.intel.com>
Reviewed-by: NMaxime Ripard <maxime.ripard@free-electrons.com>
Reviewed-by: NJonathan Cameron <jic23@kernel.org>
Signed-off-by: NLee Jones <lee.jones@linaro.org>

This patch introduces the preliminary support for PMICs X-Powers AXP202
and AXP209. The AXP209 and AXP202 are the PMUs (Power Management Unit)
used by A10, A13 and A20 SoCs and developed by X-Powers, a sister company
of Allwinner.

The core enables support for two subsystems:
- PEK (Power Enable Key)
- Regulators
Signed-off-by: NCarlo Caione <carlo@caione.org>
Signed-off-by: NLee Jones <lee.jones@linaro.org>