Currently we're attempting to use a static value for the
voltctrl register that only works for controlling the PMIC
over I2C4. For using sys_off_mode signaling, we need to update
update clksetup, voltsetup1, voltsetup2 and voltctrl registers
dynamically depending on the idle state.
So let's fix this by configuring things for I2C4 controlled idle
and sys_off_mode pin controlled idle, and then write the
configured register values depending on the idle state. This
is similar what N900 kernel is doing too.
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>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Commit c589eb3869 (ARM: OMAP3: VC: calculate ramp times)
started using regulator slew rates for calculating the idle
mode start-up times. This works fine for I2C4 controlled
regulator scaling as the regulators are never completely
turned off.
For sys_off_mode pin controlled PMIC scripts, the slew rate
based calculations won't work at all as the regulators are
completely turned off and the start-up time is much longer.
This means currently omap3_set_off_timings currently has
zero chance of working on any real hardare. The current code
is broken in at least the following ways:
1. It attempts to use the default ULONG_MAX value for the
oscillator start-up value as we're currently never
initializing the start-up value.
2. It relies on a magic number potentially set by the
bootloader for volsetup2 register.
3. If no magic value is passed, it attempts to calculate
voltsetup2 register based on the regulator slew rate.
This won't work as there is roughly at least five
times the delay needed for turning on vdd1 and vdd2
regulators.
4. It does duplicate register write to OMAP3_PRM_VOLTOFFSET
5. It duplicates the code for omap_usec_to_32k unnecessarily
6. It initialized global registers twice, once for each channel
Let's just remove the broken code and call omap3_set_i2c_timings
directly, we're better off with this function doing nothing until
it's fixed. And otherwise further fixes to omap3_set_off_timings
will be unreadable.
And let's get rid of omap3_set_clksetup as that's not needed
for off-idle controlled by I2C4 as in that case the oscillator
is never shut down.
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>
Signed-off-by: Tony Lindgren <tony@atomide.com>
While debugging legacy mode vs device tree booted PM regressions,
I noticed that omap3 is not toggling sys_clkreq and sys_off_mode
pins like it should.
The sys_clkreq and sys_off_mode pins are not toggling because of
the following issues:
1. The default polarity for the sys_off_mode pin is wrong.
OFFMODE_POL needs to be cleared for sys_off_mode to go down when
hitting off-idle, while CLKREQ_POL needs to be set so sys_clkreq
goes down when hitting retention.
2. The values for voltctrl register need to be updated dynamically.
We need to set either the retention idle bits, or off idle bits
in the voltctrl register depending the idle mode we're targeting
to hit.
Let's fix these two issues as otherwise the system will just
hang if any twl4030 PMIC idle scripts are loaded. The only case
where the system does not hang is if only retention idle over I2C4
is configured by the bootloader.
Note that even without the twl4030 PMIC scripts, these fixes will
do the proper signaling of sys_clkreq and sys_off_mode pins, so
the fixes are needed to fix monitoring of PM states with LEDs or
an oscilloscope.
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>
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>
These add device tree entry for qspi controller driver on dra7-evm.
Signed-off-by: Sourav Poddar <sourav.poddar@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
The VTT regulator for DDR3 termination on the am335x-evmsk is
controlled by a gpio. It is configured by the bootloader so here we
define an always-on, fixed voltage regulator to hold the gpio.
Signed-off-by: Dave Gerlach <d-gerlach@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
The VTT regulator for DDR3 termination on the am437x-gp-evm is
controlled by a gpio. It is configured by the bootloader so here we
define an always-on, fixed voltage regulator to hold the gpio.
Signed-off-by: Dave Gerlach <d-gerlach@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Use phandles instead of unit adresses to reference usb and dma nodes.
This makes the DT more robust and readable.
Signed-off-by: Guido Martínez <guido@vanguardiasur.com.ar>
Cc: Enric Balletbo i Serra <eballetbo@iseebcn.com>
Acked-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Use phandles instead of unit adresses to reference usb and dma nodes.
This makes the DT more robust and readable.
Signed-off-by: Guido Martínez <guido@vanguardiasur.com.ar>
Acked-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Use phandles instead of unit adresses to reference usb and dma nodes.
This makes the DT more robust and readable.
Signed-off-by: Guido Martínez <guido@vanguardiasur.com.ar>
Acked-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Use phandles instead of unit adresses to reference usb and dma nodes.
This makes the DT more robust and readable.
Signed-off-by: Guido Martínez <guido@vanguardiasur.com.ar>
Acked-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
The only difference from the dra74x devices is the missing .smp entry.
Signed-off-by: Rajendra Nayak <rnayak@ti.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Use of const init definition must use __initconst so replace
all such instances where __initdata is used.
Signed-off-by: Rajendra Nayak <rnayak@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
DRA722 is part of DRA72x family which are single core cortex A15 devices
with most infrastructure IPs otherwise same as whats on the DRA74x family.
So move the cpu nodes into dra74x.dtsi and dra72x.dtsi respectively.
Also add a minimal dra72-evm dts file.
Signed-off-by: Rajendra Nayak <rnayak@ti.com>
Cc: linux-doc@vger.kernel.org
Cc: devicetree@vger.kernel.org
Acked-by: Arnd Bergmann <arnd@arndb.de>
[tony@atomide.com: updated for Makefile sorting]
Signed-off-by: Tony Lindgren <tony@atomide.com>
"ti,dra752" is neither documented nor correct, since the device is actually a
dra742 device as rightly documented in dt bindings.
Signed-off-by: Rajendra Nayak <rnayak@ti.com>
Cc: devicetree@vger.kernel.org
Signed-off-by: Tony Lindgren <tony@atomide.com>
Add support of AW-NH387 (mwifiex) WiFi/BT chip connected to MMC3.
Signed-off-by: Dmitry Lifshitz <lifshitz@compulab.co.il>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Add support for CM-T54 CoM and SBC-T54 board:
http://compulab.co.il/products/computer-on-modules/cm-t54/http://compulab.co.il/products/sbcs/sbc-t54/
SBC-T54 is a single board computer based on OMAP5432 CPU.
It is implemented with a CM-T54 CoM providing most of the functions,
and SB-T54 carrier board providing connectors and several additional
functions.
Added basic support for:
* PMIC
* LED
* MMC/SD
* eMMC
* USB
* I2C1/4
* SB-T54 and CM-T54 EEPROMs
* RTC
Signed-off-by: Dmitry Lifshitz <lifshitz@compulab.co.il>
[tony@atomide.com: updated for Makefile sorting]
Signed-off-by: Tony Lindgren <tony@atomide.com>
Expose the PMU on OMAP5.
Tested with perf on OMAP5 uEVM.
Signed-off-by: Nathan Lynch <nathan_lynch@mentor.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
The N950/N9 uses two additional regulators from the twl 4030 for CSI-2
receiver (vaux2) and cameras (vaux3).
Signed-off-by: Sakari Ailus <sakari.ailus@iki.fi>
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 madc node to twl4030, so that board DTS
files can simply reference the A/D converter.
Signed-off-by: Sebastian Reichel <sre@debian.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 nodes for 2 instances each of
- ocp2scp
- USB PHY control module
- USB PHY
- dwc3_omap
- USB
for AM43xx.
Signed-off-by: George Cherian <george.cherian@ti.com>
Acked-by: Roger Quadros <rogerq@ti.com>
Acked-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Add USB and USB PHY reference clock data
Signed-off-by: George Cherian <george.cherian@ti.com>
Acked-by: Roger Quadros <rogerq@ti.com>
Acked-by: Felipe Balbi <balbi@ti.com>
[tony@atomide.com: tabified]
Signed-off-by: Tony Lindgren <tony@atomide.com>
Venice2 can detect write-protect on the SD card. Add the required
DT entries to allow this.
Signed-off-by: Stephen Warren <swarren@nvidia.com>
[swarren: fixed GPIO polarity per Thierry's testing]
Tested-by: Thierry Reding <treding@nvidia.com>
With ARCH_OMAP2PLUS being separated out into OMAP2/3/4/5 etc all the TI device
tree blobs are built no matter the combination of SoCs that are enabled. This
often causes a bunch of irrelevant .dts to be built on a multi platform kernel,
this enables the building of just the ones relevant to the SoCs that are
actually enabled. It also orders the dts file alphabetically.
This also helps to avoid trivial merge conflicts when adding support
for new boards.
[tony@atomide.com: updated the order for am335x and am43x, moved am3517 to omap3]
Signed-off-by: Tony Lindgren <tony@atomide.com>
MTD NAND partition for file-system should start at offset=0xA00000
Signed-off-by: Pekon Gupta <pekon@ti.com>
[tony@atomide.com: changed to lower case hex like we tend to use]
Signed-off-by: Tony Lindgren <tony@atomide.com>
- Use generic node names
- Fix up some weird formatting and white spaces
- Update copyright info
Signed-off-by: Soren Brinkmann <soren.brinkmann@xilinx.com>
The mpu_clk, main_clk, and dbg_base_clk outputs from the main PLL go through a
pre-divider. Update socfpga.dtsi to represent those dividers for these
clocks.
Re-use the "div-reg" property that was used for the socfpga-gate-clock as this
is the same thing. Also update the documentation.
Signed-off-by: Dinh Nguyen <dinguyen@altera.com>
Add the necessary #reset-cells property to the rst-mgr node and
provide a header-file with all possible resets specified.
Signed-off-by: Steffen Trumtrar <s.trumtrar@pengutronix.de>
Signed-off-by: Dinh Nguyen <dinguyen@altera.com>
The timers and uart can get their clock frequencies using the common clock
driver.
Reviewed-by: Steffen Trumtrar <s.trumtrar@pengutronix.de>
Signed-off-by: Dinh Nguyen <dinguyen@altera.com>
The Altera Cyclone5 and Arria5 devkit has an EEPROM and a RTC on the
board. This patch adds support for them.
Signed-off-by: Dinh Nguyen <dinguyen@altera.com>
---
v2: Remove LCD as the driver has not been upstreamed.
Convert all socfpga DT files to the dtc preprocessor include syntax.
This allows to include header files in the devicetrees like other
SoC-types already do.
Signed-off-by: Steffen Trumtrar <s.trumtrar@pengutronix.de>
Signed-off-by: Dinh Nguyen <dinguyen@altera.com>
Merge "Second Round of Renesas ARM Based SoC Updates for v3.16" from Simon
Horman:
Power management code which is only used by
sh7372 (SH-Mobile AP4) based Mackerl board
* Ignore callbacks for subsys generic_pm_domain_data
* tag 'renesas-soc2-for-v3.16' of git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas:
ARM: shmobile: Ignore callbacks for subsys generic_pm_domain_data
Signed-off-by: Olof Johansson <olof@lixom.net>
