Commit 9188883fd6 (ARM: dts: Enable twl4030 off-idle configuration
for selected omaps) allowed n900 to cut off core voltages during
off-idle. This however caused a regression where twl regulator
vaux1 was not getting enabled for the LCD panel as we are not
requesting it for the panel.
Turns out quite a few devices on n900 are using vaux1, and we need
to either stop idling it, or add proper regulator_get calls for all
users. But until we have a proper solution implemented and tested,
let's just disable the twl off-idle configuration for now for n900.
Reported-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Fixes: 9188883fd6 (ARM: dts: Enable twl4030 off-idle configuration for selected omaps)
Signed-off-by: Tony Lindgren <tony@atomide.com>
N900 now seems to shut down the external oscillator when hitting
off-idle.
And Beagle XM seems to have OSC_EN pin connected to allow shutting
down the oscillator looking at the schematics. The oscillator
output is cut off in off-idle and you can monitor it from R56 on
the bottom side of the board near the power jack. Note that for
beagle we need to also enable the UART wake-up event, the others
have that enabled in earlier patches.
OMAP37XX EVM (TMDSEVM3730) does not seem to have twl4030 clken
pin connected, so there is no point trying to enable shutting
down of the oscillator on it for the extra latency it adds.
Signed-off-by: Tony Lindgren <tony@atomide.com>
Pull input updates from Dmitry Torokhov:
"A big update to the Atmel touchscreen driver, devm support for polled
input devices, several drivers have been converted to using managed
resources, and assorted driver fixes"
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input: (87 commits)
Input: synaptics - fix resolution for manually provided min/max
Input: atmel_mxt_ts - fix invalid return from mxt_get_bootloader_version
Input: max8997_haptic - add error handling for regulator and pwm
Input: elantech - don't set bit 1 of reg_10 when the no_hw_res quirk is set
Input: elantech - deal with clickpads reporting right button events
Input: edt-ft5x06 - fix an i2c write for M09 support
Input: omap-keypad - remove platform data support
ARM: OMAP2+: remove unused omap4-keypad file and code
Input: ab8500-ponkey - switch to using managed resources
Input: max8925_onkey - switch to using managed resources
Input: 88pm860x-ts - switch to using managed resources
Input: 88pm860x_onkey - switch to using managed resources
Input: intel-mid-touch - switch to using managed resources
Input: wacom - process outbound for newer Cintiqs
Input: wacom - set stylus_in_proximity when pen is in range
DTS: ARM: OMAP3-N900: Add tsc2005 support
Input: tsc2005 - add DT support
Input: add common DT binding for touchscreens
Input: jornada680_kbd - switch top using managed resources
Input: adp5520-keys - switch to using managed resources
...
As with previous release, this continues to be among the largest branches
we merge, with lots of new contents.
New things for this release are among other things:
- DTSI contents for the new SoCs supported in 3.16 (see SoC pull request)
- Qualcomm APQ8064 and APQ8084 SoCs and eval boards
- Nvidia Jetson TK1 development board (Tegra T124-based)
Two new SoCs that didn't need enough new platform code to stand out
enough for me to notice when writing the SoC tag, but that adds new DT
contents are:
- TI DRA72
- Marvell Berlin 2Q
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Merge tag 'dt-for-3.16' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc into next
Pull ARM SoC devicetree updates from Olof Johansson:
"As with previous release, this continues to be among the largest
branches we merge, with lots of new contents.
New things for this release are among other things:
- DTSI contents for the new SoCs supported in 3.16 (see SoC pull request)
- Qualcomm APQ8064 and APQ8084 SoCs and eval boards
- Nvidia Jetson TK1 development board (Tegra T124-based)
Two new SoCs that didn't need enough new platform code to stand out
enough for me to notice when writing the SoC tag, but that adds new DT
contents are:
- TI DRA72
- Marvell Berlin 2Q"
* tag 'dt-for-3.16' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (500 commits)
ARM: dts: add secure firmware support for exynos5420-arndale-octa
ARM: dts: add pmu sysreg node to exynos3250
ARM: dts: correct the usb phy node in exynos5800-peach-pi
ARM: dts: correct the usb phy node in exynos5420-peach-pit
ARM: dts: add dts files for exynos5410 and exynos5410-smdk5410
ARM: dts: add dts files for exynos3250 SoC
ARM: dts: add mfc node for exynos5800
ARM: dts: add Vbus regulator for USB 3.0 on exynos5800-peach-pi
ARM: dts: enable fimd for exynos5800-peach-pi
ARM: dts: enable display controller for exynos5800-peach-pi
ARM: dts: enable hdmi for exynos5800-peach-pi
ARM: dts: add dts file for exynos5800-peach-pi board
ARM: dts: add dts file for exynos5800 SoC
ARM: dts: add dts file for exynos5260-xyref5260 board
ARM: dts: add dts files for exynos5260 SoC
ARM: dts: update watchdog node name in exynos5440
ARM: dts: use key code macros on Origen and Arndale boards
ARM: dts: enable RTC and WDT nodes on Origen boards
ARM: dts: qcom: Add APQ8084-MTP board support
ARM: dts: qcom: Add APQ8084 SoC support
...
This adds support for the tsc2005 touchscreen
to the Nokia N900 DTS file.
Signed-off-by: Sebastian Reichel <sre@kernel.org>
Acked-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Add modem device tree data to Nokia N900's DTS file.
Signed-off-by: Sebastian Reichel <sre@kernel.org>
Reviewed-by: Pavel Machek <pavel@ucw.cz>
Tested-By: Ivaylo Dimitrov <ivo.g.dimitrov.75@gmail.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Add SSI device tree data for OMAP3 and Nokia N900.
Signed-off-by: Sebastian Reichel <sre@kernel.org>
Reviewed-by: Pavel Machek <pavel@ucw.cz>
Tested-By: Ivaylo Dimitrov <ivo.g.dimitrov.75@gmail.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
On N900 there are nice LEDs that show the state of the
sys_clkreq and sys_off_mode pins.
These LEDs go low when the system enters deeper idle
states. The left LED shows the state of the sys_clkreq
pin, and goes off during retention idle. The right LED
shows the state of sys_off_mode pin and both go off
during off idle.
As N900 is a battery operated device, these LEDs should
be off most of the time. So let's enable them by default
so we can make sure the system is mostly idle.
This allows the maintainers to also immediately test
patches for PM regressions by looking at the LEDs,
which certainly makes my life easier.
The LED can naturally be disabled during runtime with:
# echo none > /sys/class/leds/debug::sleep/trigger
Note that we don't currently have support for omap3
errata 1.158 that remuxes GPIO pins to INPUT_PULLUP |
MUX_MODE7 for the duration of idle. This means that the
GPIO pins set high will go down during off idle. In this
case it does not matter as the sys_off_mode goes down
too, but there's still a slim chance of false off idle
LED signals. If in doubt, false LED signals can be
verified by the sys_off_mode or vdd_core values.
Also note that to allow the UARTs to autoidle, the
following needs to be run on N900 to enable off idle:
#!/bin/sh
uarts=$(find /sys/class/tty/ttyO*/device/power/ -type d)
for uart in $uarts; do
echo 3000 > $uart/autosuspend_delay_ms
done
uarts=$(find /sys/class/tty/ttyO*/power/ -type d)
for uart in $uarts; do
echo enabled > $uart/wakeup
echo auto > $uart/control
done
echo 1 > /sys/kernel/debug/pm_debug/enable_off_mode
For retention idle, change the above to set 0 to
enable_off_mode.
Also note that without the twl4030 PM scripts the actual
voltage scaling won't happen for off idle so we only get
voltage scaling over I2C4 for retention idle. I'll do
some device tree patches for those also a bit later on.
Cc: Kevin Hilman <khilman@linaro.org>
Cc: Nishanth Menon <nm@ti.com>
Cc: Pali Rohár <pali.rohar@gmail.com>
Cc: Paul Walmsley <paul@pwsan.com>
Cc: Pavel Machek <pavel@ucw.cz>
Cc: Sebastian Reichel <sre@kernel.org>
Cc: Tero Kristo <t-kristo@ti.com>
Acked-by: Aaro Koskinen <aaro.koskinen@iki.fi>
[tony@atomide.com: also make sure the LEDs get built to see PM regressions]
Signed-off-by: Tony Lindgren <tony@atomide.com>
We've had deeper idle states working on omaps for few years now,
but only in the legacy mode. When booted with device tree, the
wake-up events did not have a chance to work until commit
3e6cee1786 (pinctrl: single: Add support for wake-up interrupts)
that recently got merged. In addition to that we also needed commit
79d9701559 (of/irq: create interrupts-extended property) and
9ec36cafe4 (of/irq: do irq resolution in platform_get_irq) that
are now also merged.
So let's fix the wake-up events for some selected omaps so devices
booted in device tree mode won't just hang if deeper power states
are enabled, and so systems can wake up from suspend to the serial
port event.
Note that there's no longer need to specify the wake-up bit in
the pinctrl settings, the request_irq on the wake-up pin takes
care of that.
Cc: devicetree@vger.kernel.org
Cc: "Benoît Cousson" <bcousson@baylibre.com>
Cc: Kevin Hilman <khilman@linaro.org>
Cc: Nishanth Menon <nm@ti.com>
Cc: Paul Walmsley <paul@pwsan.com>
Cc: Tero Kristo <t-kristo@ti.com>
[tony@atomide.com: updated comments, added board LDP]
Signed-off-by: Tony Lindgren <tony@atomide.com>
Use MATRIX_KEY macro from dt-bindings/input/input.h
to make the keyboard matrix human readable.
Signed-off-by: Sebastian Reichel <sre@kernel.org>
Signed-off-by: Tony Lindgren <tony@atomide.com>
This patch adds support for the Nokia N900's sound
system.
Signed-off-by: Sebastian Reichel <sre@kernel.org>
Reviewed-by: Mark Brown <broonie@linaro.org>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Add device tree support for the wireless chip
built into the Nokia N900.
Signed-off-by: Sebastian Reichel <sre@debian.org>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Add DT data for OMAP3 N900 board. The board has the following displays:
lcd: LCD panel connected to OMAP's SDI output
tv: analog svideo
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Tested-by: Sebastian Reichel <sre@debian.org>
Acked-by: Tony Lindgren <tony@atomide.com>
This adds support for the bq24150a chip to the
Nokia N900 DTS file.
Signed-off-by: Sebastian Reichel <sre@debian.org>
Signed-off-by: Benoit Cousson <bcousson@baylibre.com>
This adds support for the isp1704 chip to the Nokia N900
DTS file.
Signed-off-by: Sebastian Reichel <sre@debian.org>
Signed-off-by: Benoit Cousson <bcousson@baylibre.com>
This adds support for the N900's headphone
amplifier to the N900 DTS file.
Signed-off-by: Sebastian Reichel <sre@debian.org>
Signed-off-by: Benoit Cousson <bcousson@baylibre.com>
Add support for tsl2563 light sensor to the Nokia N900.
Signed-off-by: Sebastian Reichel <sre@debian.org>
Signed-off-by: Benoit Cousson <bcousson@baylibre.com>
Add Keyboard Matrix information to N900's DTS file.
This patch maps the keys exactly as the original
board code.
Signed-off-by: Sebastian Reichel <sre@debian.org>
Signed-off-by: Benoit Cousson <bcousson@baylibre.com>
Add missing compatible property to avoid problems in the future.
Signed-off-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Reviewed-by: Nishanth Menon <nm@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Looks like we need to configure the regulators and use the pdata
quirk to make eMMC work with device tree.
It seems that mostly vaux3 is used, and only some earlier revisions
used vmmc2. This has been tested to work on devices where the
system_rev passed by the bootloader has versions 0x0010, 0x2101
and 0x2204.
Cc: devicetree@vger.kernel.org
Cc: Pavel Machek <pavel@ucw.cz>
Cc: Aaro Koskinen <aaro.koskinen@iki.fi>
Signed-off-by: Sebastian Reichel <sre@debian.org>
[tony@atomide.com: updated with pinctrl changes and comments from Sebastian]
Signed-off-by: Tony Lindgren <tony@atomide.com>
This patch adds support for Nokia N900 TLV320AIC3X chips.
Signed-off-by: Sebastian Reichel <sre@debian.org>
Signed-off-by: Benoit Cousson <bcousson@baylibre.com>
Add RX51_LCD_RESET_GPIO pin mux information to
display.
Signed-off-by: Sebastian Reichel <sre@debian.org>
Signed-off-by: Benoit Cousson <bcousson@baylibre.com>
This patch adds supports for Nokia N900 NAND memory.
Signed-off-by: Sebastian Reichel <sre@debian.org>
Signed-off-by: Benoit Cousson <bcousson@baylibre.com>
Add regulator names and voltage information to
the Nokia N900 DTS file.
Signed-off-by: Sebastian Reichel <sre@debian.org>
Signed-off-by: Benoit Cousson <bcousson@baylibre.com>
Add device tree node for the GPIO keys provided by the
N900 board. This is a simple conversion of the existing
board code.
Signed-off-by: Sebastian Reichel <sre@debian.org>
Signed-off-by: Benoit Cousson <bcousson@baylibre.com>
Add pin muxing support for the Nokia N900 i2c controllers.
Signed-off-by: Sebastian Reichel <sre@debian.org>
Signed-off-by: Benoit Cousson <bcousson@baylibre.com>
The generic PHY framewrok expects different properties than the
old USB PHY framework. Supply those properties.
Fixes USB OTG port on GAT04 and N900 after the Generic PHY framework was
merged in greg/usb-next. [1]
[1] - https://lkml.org/lkml/2013/9/27/581
Signed-off-by: Roger Quadros <rogerq@ti.com>
Acked-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Benoit Cousson <bcousson@baylibre.com>
This adds device tree with necessary support to boot with functional
video (on both emulator and real N900 device).
Signed-off-by: Pavel Machek <pavel@ucw.cz>
Signed-off-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Signed-off-by: Benoit Cousson <bcousson@baylibre.com>
Tony Lindgren