Commit Graph

22 Commits

Author SHA1 Message Date
Sebastian Reichel
d6c95d54b8 ARM: dts: omap4-droid4: improve LCD description
This improves LCD support for the Droid 4.

Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.co.uk>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2017-12-21 06:46:08 -08:00
Rob Herring
f568f6f554 ARM: dts: omap: Add missing #phy-cells to usb-nop-xceiv
"usb-nop-xceiv" is using the phy binding, but is missing #phy-cells
property. This is probably because the binding was the precursor to the phy
binding.

Fixes the following warning in OMAP dts files:

Warning (phys_property): Missing property '#phy-cells' in node ...

Signed-off-by: Rob Herring <robh@kernel.org>
Cc: "Benoît Cousson" <bcousson@baylibre.com>
Cc: Tony Lindgren <tony@atomide.com>
Cc: Enric Balletbo i Serra <eballetbo@gmail.com>
Cc: Javier Martinez Canillas <javier@dowhile0.org>
Cc: linux-omap@vger.kernel.org
Signed-off-by: Tony Lindgren <tony@atomide.com>
2017-11-10 08:15:56 -08:00
Sebastian Reichel
a5effd9683 ARM: dts: omap4-droid4: Add vibrator
Add vibrator to Droid4's device tree.

Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.co.uk>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2017-08-14 11:34:24 -07:00
Tony Lindgren
3a8ed20db8 ARM: dts: Disable HDMI CEC internal pull-ups
Devices using an external encoder, ESD protection and level shifter
such as tpd12s015 or ip4791cz12 have the CEC pull in the encoder
chip. And on var-som-om44, there is external pull up resistor R30.

So the internal CEC pull-up resistor needs to be disabled as otherwise
the external and internal pull are parallel making the pull value
much smaller than intended. This leads into the CEC not working as
reported by Hans Verkuil <hverkuil@xs4all.nl>.

Reported-by: Hans Verkuil <hverkuil@xs4all.nl>
Cc: Dmitry Lifshitz <lifshitz@compulab.co.il>
Cc: Tomi Valkeinen <tomi.valkeinen@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2017-08-14 11:34:23 -07:00
Sebastian Reichel
d809f2cca3 ARM: dts: omap4-droid4: Fix WLAN compatible
Motorola Droid 4 uses a WL1285C, so use proper compatible value.
To avoid regressions while support for the new compatible value
is added to the Linux kernel, the old compatible value is preserved
as fallback.

Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.co.uk>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2017-06-12 00:29:47 -07:00
Sebastian Reichel
6f0b0c03fb ARM: dts: omap4-droid4: Add isl29030 ALS/proximity sensor
The Droid 4 has a isl29030 to measure ambient light (e.g. for
automatically adapting display brightness) and proximity.

Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.co.uk>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2017-06-12 00:08:22 -07:00
Sebastian Reichel
decd2db7ba ARM: dts: omap4-droid4: Add bluetooth
Droid 4 has WL 1285C connected to the OMAP's UART4 port, which is
used for Bluetooth and most likely can also be used for controlling
the FM radio and GPS receivers.

Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.co.uk>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2017-05-16 09:46:28 -07:00
Tony Lindgren
22d653429e ARM: dts: omap4-droid4: Stop disabling SRAM and GPMC
I disabled SRAM and GPMC originally when seeing errors with
omap_barriers_init(). But that is no longer happening probably
because the memory range is now properly configured to 1021 MB
instead of 1024 MB. So let's enable SRAM and GPMC so we get
omap_barriers_init() working and can idle the GPMC.

Cc: Marcel Partap <mpartap@gmx.net>
Cc: Michael Scott <michael.scott@linaro.org>
Cc: Sebastian Reichel <sre@kernel.org>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2017-04-04 09:22:30 -07:00
Tony Lindgren
26bfad63ca ARM: dts: omap4-droid4: Fix MMC1 card for detect GPIO and regulator
There's a typo, it should be GPIO176 and not GPIO106.

And it seems I messed up the regulators at some point while trying
to figure out what devices the regulators are used. The correct
regulator for MMC1 is vwlan2.

Fixes: 0d4cb3ccee ("ARM: dts: Configure regulators for droid 4")
Reported-by: Sebastian Reichel <sre@kernel.org>
Reviewed-by: Sebastian Reichel <sre@kernel.org>
Tested-by: Sebastian Reichel <sre@kernel.org>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2017-03-28 08:57:25 -07:00
Tony Lindgren
7a9b248446 ARM: dts: omap4-droid4: Configure EHCI so modems can be accessed
Droid 4 has two modems, mdm6600 and w3glte. Both are on the HCI USB
controller.

Let's add a configuration for the HCI so the modems can be enabled.

Note that the modems still need additional GPIO based configuration.

Cc: devicetree@vger.kernel.org
Cc: Marcel Partap <mpartap@gmx.net>
Cc: Michael Scott <michael.scott@linaro.org>
Tested-by: Sebastian Reichel <sre@kernel.org>
[tony@atomide.com: left out url]
Signed-off-by: Tony Lindgren <tony@atomide.com>
2017-03-22 09:09:23 -07:00
Tony Lindgren
d9bed14479 ARM: dts: omap4-droid4: Add LCD
The LCD panel on droid 4 is a command mode LCD. The binding follows
the standard omapdrm binding and the changes needed for omapdrm command
mode panels are posted separately.

Cc: devicetree@vger.kernel.org
Cc: Marcel Partap <mpartap@gmx.net>
Cc: Michael Scott <michael.scott@linaro.org>
Cc: Tomi Valkeinen <tomi.valkeinen@ti.com>
Tested-By: Sebastian Reichel <sre@kernel.org>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2017-03-22 09:08:12 -07:00
Tony Lindgren
50cdcc0b01 ARM: dts: omap4-droid4: Add HDMI support
We can get HDMI working as long as the 5V regulator is on. There is
probably an encoder chip there too, but so far no idea what it might be.
Let's keep the 5V HDMI regulator always enabled for now as otherwise we
cannot detect the monitor properly.

Cc: devicetree@vger.kernel.org
Cc: Marcel Partap <mpartap@gmx.net>
Cc: Michael Scott <michael.scott@linaro.org>
Cc: Tomi Valkeinen <tomi.valkeinen@ti.com>
Tested-By: Sebastian Reichel <sre@kernel.org>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2017-03-22 09:07:28 -07:00
Tony Lindgren
fdec8edbbe ARM: dts: omap4-droid4: Add tmp105 sensor for droid 4
Add tmp105 sensor for droid 4. This can be used with modprobe
lm75.ko and running sensors from lm-sensors package. Note that
the lm75.c driver does not yet support alert interrupt but
droid 4 seems to be wired for it.

Cc: devicetree@vger.kernel.org
Cc: Marcel Partap <mpartap@gmx.net>
Cc: Michael Scott <michael.scott@linaro.org>
Tested-By: Sebastian Reichel <sre@kernel.org>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2017-03-22 09:07:10 -07:00
Tony Lindgren
9946f937d4 ARM: dts: omap4-droid4: Add GPIO poweroff
Droid 4 has a GPIO line that we can use with CONFIG_POWER_RESET_GPIO.
It is probably connected to the CPCAP PMIC, and seems to power down
the whole device taking power consumption to zero based on what
I measured.

Cc: devicetree@vger.kernel.org
Cc: Marcel Partap <mpartap@gmx.net>
Cc: Michael Scott <michael.scott@linaro.org>
Tested-By: Sebastian Reichel <sre@kernel.org>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2017-03-22 09:06:37 -07:00
Tony Lindgren
771e4feb27 ARM: dts: omap4-droid4: Add LCD backlight
The TI LMU driver has not yet been merged, but the device
tree binding for TI LMU drivers has been acked already
earlier by Rob Herring <robh+dt@kernel.org>. So it should
be safe to apply to cut down the number of pending patches.

Cc: devicetree@vger.kernel.org
Cc: Marcel Partap <mpartap@gmx.net>
Cc: Michael Scott <michael.scott@linaro.org>
Cc: Rob Herring <robh+dt@kernel.org>
Acked-by: Milo Kim <milo.kim@ti.com>
Tested-By: Sebastian Reichel <sre@kernel.org>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2017-03-22 09:03:43 -07:00
Tony Lindgren
0526364ce4 ARM: dts: omap4-droid4: Add touchscreen
Droid4's touchscreen can be used with mainline's maxtouch driver. The
touchscreen's lower area is used for four soft buttons (KEY_MENU,
KEY_HOME, KEY_BACK, KEY_SEARCH), but that does not seem to be currently
supported by the mainline kernel.

The mxt224 configuration can be saved with "mxt-app" for the kernel
to load. It can be saved after the first boot with:

# mxt-app -d i2c-dev:1-004a --save /lib/firmware/maxtouch.cfg

Where the mxt-app can be found at:

https://github.com/atmel-maxtouch/mxt-app

The firmware for the droid 4 mxt224 comes with GPLv2 license in the
Motorola Linux kernel sources. This firmware can be dumped out with
"droid4-touchscreen-firmware" program at:

https://github.com/tmlind/droid4-touchscreen-firmware

The related LCD patches are still pending, but when merged,
the touchscreen can be rotated in X with something like:

# xrandr --output DSI-1 --rotate right
# xinput set-prop 6 'Coordinate Transformation Matrix' \
	0 1 0 -1 0 1 0 0 1

For now, we rely on a gpio-hog but later on we can add the reset
gpio handling to the driver and have it load the maxtouch.cfg and
maxtouch.fw on boot.

This patch is based on combined similar patches done by me and
Sebastian.

Signed-off-by: Sebastian Reichel <sre@kernel.org>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2017-03-06 08:04:30 -08:00
Sebastian Reichel
6f1a074416 ARM: dts: omap4-droid4: Add accelerometer
Add accelerometer.

Signed-off-by: Sebastian Reichel <sre@kernel.org>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2017-03-06 08:04:30 -08:00
Sebastian Reichel
d2913a6992 ARM: dts: omap4-droid4: Add compass
Add compass.

Signed-off-by: Sebastian Reichel <sre@kernel.org>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2017-03-06 08:04:30 -08:00
Sebastian Reichel
5937a55cf9 ARM: dts: omap4-droid4: Add gpio-keys
On Droid 4 "Volume Down" and "Keypad Slide" keys are
connected via SoC GPIOs, "Power Key" via CPCAP and
all other keys via SoC keypad Matrix. This adds the
GPIO keys.

Signed-off-by: Sebastian Reichel <sre@kernel.org>
[tony@atomide.com: updated to apply on omap4-keypad patch]
Signed-off-by: Tony Lindgren <tony@atomide.com>
2017-03-06 08:04:30 -08:00
Tony Lindgren
0d4cb3ccee ARM: dts: Configure regulators for droid 4
With drivers/mfd/motorola-cpcap.c and drivers/regulator/cpcap-regulator.c
we can now configure proper regulators for droid 4.

Let's add regulator voltages and switch over MMC, eMMC and WLAN to use
the CPCAP regulators.

Cc: devicetree@vger.kernel.org
Cc: Marcel Partap <mpartap@gmx.net>
Cc: Michael Scott <michael.scott@linaro.org>
Tested-By: Sebastian Reichel <sre@kernel.org>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2017-03-06 08:04:30 -08:00
Tony Lindgren
59e1a4afaf ARM: dts: Add keypad support for droid 4
Let's configure the keypad in a way where it's usable out of the
box for Linux console use. We want to have the keyboard usable with
Linux console for example when stuck into an initramfs during boot,
for when installing a distro.

As we need to need to have keys mapped in the user space anyways
for some of the keys to match the labels, this non-standard mapping
or usability should be OK.

Some keys don't match the labels either as they don't follow the PC
keyboard style. For example we have "shift + ," produce "<", and
"shift + ." produce ">" instead of ";" and ":".

So let's follow the standard PC keyboard layout for ctrl, shift and
alt keys:

Ctrl = what is labeled as shift
Alt = what is labeled as SYM
Shift = what is lableled as caps lock

This way we have Ctrl key for console use. Who knows where they got
the caps lock idea.. Probably from some focus group popularity vote
or something.

For the OK key, let's keep it as the useless KEY_OK unless we can
come up with some standard mapping for it we can stick with.

We have at least Esc, Delete, Meta, and Page Down keys missing, but
none of them seem to be better than others. PC keyboard often has
Page Down in that location. Esc would be probably the most usable
one when installing a Linux distro but is the opposite of OK.

Note that the LCD keys are just touchscreen hot spots, so I'm not
sure if the driver or hardware allows setting them up as keys for
the console.

Anyways, the rest can be mapped in the user space.

Cc: Marcel Partap <mpartap@gmx.net>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Michael Scott <michael.scott@linaro.org>
Tested-By: Sebastian Reichel <sre@kernel.org>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2017-03-05 20:11:56 -08:00
Tony Lindgren
7e2f8c0ae6 ARM: dts: Add minimal support for motorola droid 4 xt894
Let's add minimal support for droid 4 with MMC and WLAN working.
It can be booted with appended dtb using kexec to a state where
MMC and WLAN work with currently no support for it's PMIC or
display.

Note that we are currently using fixed regulators as we don't
have support for it's cpcap PMIC. I'll be posting regmap_spi
based minimal cpcap patches later on for USB and the debug
UART on droid 4 multiplexed with the USB connector.

Cc: Marcel Partap <mpartap@gmx.net>
Cc: Michael Scott <michael.scott@linaro.org>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2016-11-15 10:28:49 -08:00