various microchip bindings set 'girq-cells' and 'pcr-cells'
sections in the bindings. However the bindings where for the
client nodes and thus do not need to set these.
Signed-off-by: Kumar Gala <galak@kernel.org>
The CLINT (Core Local Interruptor) description was not aligned with
Linux. For example, there's no "riscv,clint0", but "sifive,clint0". The
peripheral is not described as an interrupt-controller either.
Ref. https://elixir.bootlin.com/linux/v5.18.14/source/arch/riscv/boot/
dts/starfive/jh7100.dtsi#L106
Signed-off-by: Gerard Marull-Paretas <gerard.marull@nordicsemi.no>
After some analysis I found out that there's no machine timer provided
by the "riscv" vendor. There are some specs for the mtime/mtimecmp
registers (this is why we can have a single driver), but the actual
register layout or implementations differ amongst vendors. GD32 uses the
Nuclei implementation, named "system timer" in their documentation. This
patch aligns with vendor specs.
Signed-off-by: Gerard Marull-Paretas <gerard.marull@nordicsemi.no>
All in tree device drivers use some form of DEVICE_DT_GET
so we no longer need to require label properties.
Signed-off-by: Kumar Gala <galak@kernel.org>
The armv8 timer, arm gic, and arm gic-v3-its don't use or need the
devicetree label property. Update the dts bindings to not require it and
remove setting of the label property in dts files.
Signed-off-by: Kumar Gala <galak@kernel.org>
LPTIMER has a different `countermode` meaning.
We shall exclude introduced property from lptim bindings.
Alternative property (e.g. `external-mode`) can be added
later on to support external counter mode.
Signed-off-by: Georgij Cernysiov <geo.cgv@gmail.com>
This update Atmel sam counter driver to use pinctrl driver and API. It
updates all boards with new pinctrl groups format.
Signed-off-by: Gerson Fernando Budke <nandojve@gmail.com>
Exposes the RC register so that the initial value can be set in
the device tree. This is useful in the case where the timer
generates an event but an interrupt is not required.
e.g generate event to sample adc on RC register match.
Tested on Atmel SMART SAM E70 Xplained Ultra board
Signed-off-by: Marius Scholtz <mariuss@ricelectronics.com>
On some platforms, HPET is not wired to trigger IRQ 2.
This would make HPET non-functional if the legacy
interrupt routing bit is set in the global config
register. This adds a DTS flag so the driver won't
set the bit to enable legacy interrupt.
Signed-off-by: Daniel Leung <daniel.leung@intel.com>
dts/bindings/timer/riscv,machine-timer must have compatible name
riscv,machine-timer. nuclei,machine-timer is wrong, correct it.
Signed-off-by: TOKITA Hiroshi <tokita.hiroshi@gmail.com>
GD32V SoC uses divided clock from core-clock for machine timer clock.
Add config of clock divide factor to support GD32V.
Signed-off-by: TOKITA Hiroshi <tokita.hiroshi@gmail.com>
Prescaler was misplaced in pwm binding, instead of timers binding.
For example, TIM6/TIM7 doesn't have PWM capability,
but have a prescaler.
Also prescaler is common to all PWM channels of the same timer.
This change also prepares the introduction of timer based counter
(which requires prescaler at timer level)
For compatibility reason temporarily keep pwm binding to avoid
breaking boards out of tree.
Block st,prescaler property in lptim binding
as lptim doesn't use this property for now.
Signed-off-by: Alexandre Bourdiol <alexandre.bourdiol@st.com>
MEC172x eSPI driver, eSPI pin programming, interrupt updates related
to eSPI and other updates for MEC172x eSPI driver.
Signed-off-by: Jay Vasanth <jay.vasanth@microchip.com>
interrupt controller, also places its relevant
peripheral sources allowing drivers to use the
DT macros instead of espressif headers.
Signed-off-by: Felipe Neves <felipe.neves@espressif.com>
Microchip XEC two custom DT properies girqs and pcrs cell sizes
are defined as constants. There is no need to replicate these
is the chip DTSI since the value cannot be changes. Fix the syntax
of the cell size constant to match the naming convention used
thoughout DT.
Signed-off-by: Scott Worley <scott.worley@microchip.com>
Update Microchip XEC RTOS timer driver adding MEC172x support and
using more device tree properities in the driver. We must also update
the XEC counter driver to use the new GIRQ DT properties.
Add new properties to RTOS timer and RTC timer YAML. These two timers
are linked due to option using a high speed timer for kernel busy wait.
Add Kconfig logic for XEC RTOS timer to MEC172x SoC.
Enable the Microchip XEC RTOS timer in the MEC172x evaluation board.
Add device tree nodes for most peripeherals.
Signed-off-by: Scott Worley <scott.worley@microchip.com>
Add basic counter driver based on Timer Counter (TC) module for Atmel
SAM family.
Remarks:
- The driver is not thread safe.
- The driver does not implement guard periods.
- The driver does not guarantee that short relative alarm will trigger
the interrupt immediately and not after the full cycle / counter
overflow.
Tested on Atmel SMART SAM E70 Xplained board
Origin: Original
Signed-off-by: Piotr Mienkowski <piotr.mienkowski@gmail.com>
Clean up multi-line strings so they will show up properly in the
bindings index in the HTML documentation.
Signed-off-by: Martí Bolívar <marti.bolivar@nordicsemi.no>
This CL introduces a kernel device driver implemented by the internal
64/32-bit timers in Nuvoton NPCX series. Via these two kinds of timer,
the driver provides an standard "system clock driver" interface.
It includes:
- A system timer based on an ITIM64 (Internal 64-bit timer) instance,
clocked by APB2 which freq is CONFIG_SYS_CLOCK_HW_CYCLES_PER_SEC.
- Its prescaler is set to 1 and provide the kernel cycles reading
without handling overflow mechanism.
- A event timer based on an ITIM32 (Internal 32-bit timer) instance,
clocked by LCLK which frequency is 32KHz and still activated when ec
entered "idle/deep idle" power state for better power consumption.
- Its prescaler is set to 1 and provide timeout event mechansim.
- Compensate system timer which clock is gating for better power
consumption after ec left"idle/deep idle" power state.
This CL passed starve, timer_api, and timer_monotonic test suites.
Signed-off-by: Mulin Chao <mlchao@nuvoton.com>
The compatible for the ARMv8 timer should have been arm,armv8-timer and
not arm,arm-timer. The dts binding file name was correct, just the
compatible was wrong. Rename dts, binding, and associated code to use
arm,armv8-timer.
Fixes#31946
Signed-off-by: Kumar Gala <kumar.gala@linaro.org>
This commit is about it8xxx2 platform device tree.
Add driver's binding files, and one device tree as sample.
Signed-off-by: Cheryl Su <cheryl.su@ite.com.tw>
This adds support for GRLIB GPTIMER general purpose timer used in
LEON3/4/5 systems.
One of the GPTIMER subtimers is used to generate periodic interrutps
for announcing ticks. Another subtimer is used as upcounter for the
cycle_get_32() service.
Signed-off-by: Martin Åberg <martin.aberg@gaisler.com>
The number of capture/compare registers available on a peripheral
should be exposed in devicetree.
Signed-off-by: Peter Bigot <peter.bigot@nordicsemi.no>
Adds a new LPTIM binding for stm32 soc,
based on the timer binding. This will makes a specific filter
on dt_compat_enabled("stm32,lptim")
Signed-off-by: Francois Ramu <francois.ramu@st.com>
Rework the devicetree to utilize new DT_INST macros and extract per
instance data for clocks from devicetree. Move the prescaler setting
from Kconfig to devicetree as well.
Signed-off-by: Kumar Gala <kumar.gala@linaro.org>
Add clock references for ADC and TC devices. Update the bindings for
these devices to require clocks property and update the dtsi files to
have the clock info.
Signed-off-by: Kumar Gala <kumar.gala@linaro.org>
The `xlnx,ttcps` binding, despite having the file name of
`xlnx,ttcps.yaml`, had the compatible property of `cdns,ttc`.
While it is true that the Xilinx ZynqMP platform embeds the Cadence
Triple Timer Counter (TTC) IP core, its TTC differs from the original
Cadence core in that it implements 32-bit counters, instead of the
16-bit counters defined in the original; hence, the Xilinx variant is
not compatible with the original Cadence version and should be treated
as a different device.
This commit changes the `xlnx,ttcps.yaml` compatible property to
`xlnx,ttcps` for the above reasons.
Signed-off-by: Stephanos Ioannidis <root@stephanos.io>
Add the girq and girq-bit fields to the binding. This allows
encoding GIRQ related information inside device tree.
Signed-off-by: Daniel Leung <daniel.leung@intel.com>
ARM cores may have a per-core architected timer, which provides per-cpu
timers, attached to a GIC to deliver its per-processor interrupts via
PPIs. This is the most common case supported by QEMU in the virt
platform.
This patch introduces support for this timer abstracting the way the
timer registers are actually accessed. This is needed because different
architectures (for example ARMv7-R vs ARMv8-A) use different registers
and even the same architecture (ARMv8-A) can actually use different
timers (ELx physical timers vs ELx virtual timers).
So we introduce the common driver here but the actual SoC / architecture
/ board must provide the three helpers (arm_arch_timer_set_compare(),
arm_arch_timer_toggle(), arm_arch_timer_count()) using an header file
imported through the arch/cpu.h header file.
Signed-off-by: Carlo Caione <ccaione@baylibre.com>
Add any useful information from 'title:' to the 'description:' strings
(e.g. explanations of acronyms), and remove 'title:' as well as any
copy-pasted "this binding gives a ..." boilerplate.
Also clean some description strings up a bit.
Some other things could probably be cleaned up (replacing 'GPIO node'
with 'GPIO controller' on controllers for consistency, for example), but
I kept things close to the original to avoid accidentally messing up.
Signed-off-by: Ulf Magnusson <Ulf.Magnusson@nordicsemi.no>
With https://github.com/zephyrproject-rtos/zephyr/pull/20185, multi-line
descriptions will be formatted nicely, but using '>' breaks it, because
it removes internal newlines (including between paragraphs).
See https://yaml-multiline.info/.
Replace 'description: >' with 'description: |' to encourage '|'. That'll
prevent '>' from getting copied around and messing up long descriptions.
This will lead to some extra newlines in the output, but it's fine.
Line-wrapping messes up any manual formatting.
The replacement was done with
$ git ls-files 'dts/bindings/*.yaml' | \
xargs sed -i 's/description:\s*>/description: |/'
Signed-off-by: Ulf Magnusson <Ulf.Magnusson@nordicsemi.no>
This driver was still using CONFIG_* values to determine its address,
IRQ, etc. Add a binding for an "intel,hpet" device and migrate this
driver to devicetree.
Fixes: #18657
Signed-off-by: Charles E. Youse <charles.youse@intel.com>
Instead of
properties:
compatible:
constraint: "foo"
, just have
compatible: "foo"
at the top level of the binding.
For backwards compatibility, the old 'properties: compatible: ...' form
is still accepted for now, and is treated the same as a single-element
'compatible:'.
The old syntax was inspired by dt-schema (though it isn't
dt-schema-compatible), which is in turn a thin wrapper around
json-schema (the idea is to transform .dts files into YAML and then
verify them).
Maybe the idea was to gradually switch the syntax over to dt-schema and
then be able to use unmodified dt-schema bindings, but dt-schema is
really a different kind of tool (a completely standalone linter), and
works very differently from our stuff (see schemas/dt-core.yaml in the
dt-schema repo to get an idea of just how differently).
Better to keep it simple.
This commit also piggybacks some clarifications to the binding template
re. '#cells:'.
Signed-off-by: Ulf Magnusson <Ulf.Magnusson@nordicsemi.no>
The 'category: required/optional' setting for properties is just a
yes/no thing. Using a boolean makes it clearer, so have
'required: true/false' instead.
Print a clear error when 'category:' is used:
edtlib.EDTError: please put 'required: true' instead of 'category:
required' in 'properties: foo: ...' in
test-bindings/sub-node-parent.yaml - 'category' has been removed
The old scripts in scripts/dts/ ignore this setting, and only print a
warning if 'category: required' in an inherited binding is changed to
'category: optional'. Remove that code, since the new scripts already
have the same check.
The replacement was done with
git ls-files 'dts/bindings/*.yaml' | xargs sed -i \
-e 's/category:\s*required/required: true/' \
-e 's/category:\s*optional/required: false/'
dts/binding-template.yaml is updated as well.
Signed-off-by: Ulf Magnusson <Ulf.Magnusson@nordicsemi.no>
