ARM: dts: sun7i: Add Mele M3 board

The Mele M3 is yet another Allwinnner based Android top set box from Mele.

It uses a housing similar to the A2000, but then without the USM sata storage
slot at the top.

It features an A20 SoC, 1G RAM, 4G eMMC (unique for Allwinner devices),
100Mbit ethernetm, HDMI out, 3 USB A receptacles, VGA, and A/V OUT connections.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
mfd-core: Don't register supplies from add_device, add register_supply_aliases()

We cannot register supply alias in mfd_add_device before calling
platform_add_device because platform-dev's name must be set before registering
the aliases which happens from platform_add_device.

So stop registering supply aliases from mfd_add_device, and add a
mfd_register_supply_aliases helper functions for the cell's plaform driver
probe method to use.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
regulator/axp20x: Call mfd_register_supply_aliases

The mfd-core no longer registers the supply aliases, instead the platform
driver probe method must now call mfd_register_supply_aliases().

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
arizona-mfd-codecs: Add mfd_register_supply_aliases() calls

The mfd-core no longer registers the supply aliases, instead the platform
driver probe method must now call mfd_register_supply_aliases().

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
input: Add new sun4i-lradc-keys driver

Allwinnner sunxi SoCs have a low resolution adc (called lradc) which is
specifically designed to have various (tablet) keys (ie home, back, search,
etc). attached to it using a resistor network. This adds a driver for this.

There are 2 channels, currently this driver only supports chan0 since there
are no boards known to use chan1. The devicetree properties are already
prefixed with chan0 as preparation for chan1 support in the future.

This has been tested on an olimex a10s-olinuxino-micro, a13-olinuxino, and
a20-olinuxino-micro.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
ARM: dts: sun4i: Add lradc node

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
ARM: dts: sun5i: Add lradc node

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
ARM: dts: sun7i: Add lradc node

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
net: rfkill: gpio: use clk_prepare_enable/clk_disable_unprepare

rfkill-gpio calls clk_enable() without first calling clk_prepare(),
resulting in a warning and no effect. Switch to clk_prepare_enable()
and clk_disable_unprepare.

Signed-off-by: Chen-Yu Tsai <wens@csie.org>
net: rfkill: gpio: add device tree support

Signed-off-by: Chen-Yu Tsai <wens@csie.org>
net: rfkill: gpio: add clock-frequency device tree property

Some devices, such as Broadcom Bluetooth devices, require a specific
clock rate for the clock tied to the rfkill device. Add clock-frequency
property so we can specify this from the device tree.

Signed-off-by: Chen-Yu Tsai <wens@csie.org>
dt-bindings: add vendor-prefix for X-Powers

Signed-off-by: Carlo Caione <carlo@caione.org>
mfd: AXP20x: Add bindings documentation

Bindings documentation for the AXP20x driver. In this file also
sub-nodes are documented.

Signed-off-by: Carlo Caione <carlo@caione.org>
Acked-by: Maxime Ripard <maxime.ripard@free-electrons.com>
input: misc: Add driver for AXP20x Power Enable Key

This patch add support for the Power Enable Key found on MFD AXP202 and
AXP209. Besides the basic support for the button, the driver adds two
entries in sysfs to configure the time delay for power on/off.

Signed-off-by: Carlo Caione <carlo@caione.org>
Acked-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
input: misc: Add ABI docs for AXP20x PEK

Add ABI entries for the PEK found on PMU X-Powers AXP202 and AXP209.

Signed-off-by: Carlo Caione <carlo@caione.org>
ARM: dts: sun5i: Add new auxtek-t004 board file

The auxtek-t004:
http://www.fasttech.com/products/1110/10004200/1318603-auxtek-t004-allwinner-a10s-single-core-android-ics

Is an Allwinner A10s based hdmi tv stick with with 512M RAM, 4G nand flash,
toc9002 (bcm43362) sdio wifi, 1 USB host ports using an USB-A receptacle and
a 2 micro-usb receptacles, one for power and one for USB OTG.

The sdio wifi appears to not have an oob irq hooked up, so we rely on sdio-irq
support for it.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
dt: bindings: mmc: Add sdio function subnode documentation

While SDIO devices are runtime probable they sometimes need nonprobable
additional information on embedded systems, like an additional gpio
interrupt or a clock. This binding describes how to add child nodes to the
devicetree to supply this information.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
[hdegoede@redhat.com: Documented the need for #address- and #size-cells]
[hdegoede@redhat.com: Added a real world example]
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
mmc: Add SDIO function devicetree subnode parsing

This adds SDIO devicetree subnode parsing to the mmc core. While
SDIO devices are runtime probable they sometimes need nonprobable
additional information on embedded systems, like an additional gpio
interrupt or a clock. This patch makes it possible to supply this
information from the devicetree. SDIO drivers will find a pointer
to the devicenode in their devices of_node pointer.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
[hdegoede@redhat.com: Misc. cleanups]
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
touchscreen: sun4i-ts: A10 (sun4i) has a different temperature curve

Testing has revealed that the temperature in the rtp controller of the A10
(sun4i) SoC has a different curve then on the A13 (sun5i) and later models.

Add a new sun5i-a13-ts compatible to differentiate the newer models and
set the curve based on the compatible string.

This fixes the temperature reported on the A10 being much higher then
expected.

Note the new curve is still not ideal on all A10-s, that seems to have to
do with there being a large spread between different A10-s out there.

Reported-by: Tong Zhang <lovewilliam@gmail.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
ARM: dts: sunxi: Adjust touchscreen compatible for sun5i and later

The touchscreen controller in the A13 and later has a different temperature
curve than the one in the original A10, change the compatible for the A13 and
later so that the kernel will use the correct curve.

Reported-by: Tong Zhang <lovewilliam@gmail.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>