pwm: sophgo: add driver for Sophgo SG2042 PWM

Add a PWM driver for PWM controller in Sophgo SG2042 SoC.

Signed-off-by: Sean Young <[email protected]>
Signed-off-by: Chen Wang <[email protected]>

pwm: sophgo: add driver for Sophgo SG2042 PWM

Add a PWM driver for PWM controller in Sophgo SG2042 SoC.

Signed-off-by: Sean Young <[email protected]>
Signed-off-by: Chen Wang <[email protected]>
Link: https://lore.kernel.org/r/ae8ea1bf0bb0a09336cd8b7f627a994630524bba.1738737617.git.unicorn_wang@outlook.com
[ukleinek: Drop unneeded reset_control_assert() from error path]
Signed-off-by: Uwe Kleine-König <[email protected]>

show more ...

pwm: adp5585: Add Analog Devices ADP5585 support

The ADP5585 is a 10/11 input/output port expander with a built in keypad
matrix decoder, programmable logic, reset generator, and PWM generator.
This

pwm: adp5585: Add Analog Devices ADP5585 support

The ADP5585 is a 10/11 input/output port expander with a built in keypad
matrix decoder, programmable logic, reset generator, and PWM generator.
This driver supports the PWM function using the platform device
registered by the core MFD driver.

The driver is derived from an initial implementation from NXP, available
in commit 113113742208 ("MLK-25922-1 pwm: adp5585: add adp5585 PWM
support") in their BSP kernel tree. It has been extensively rewritten.

Signed-off-by: Clark Wang <[email protected]>
Reviewed-by: Frank Li <[email protected]>
Co-developed-by: Laurent Pinchart <[email protected]>
Signed-off-by: Laurent Pinchart <[email protected]>
Acked-by: Uwe Kleine-König <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Lee Jones <[email protected]>

show more ...

pwm: Add GPIO PWM driver

Add a software PWM which toggles a GPIO from a high-resolution timer.

This will naturally not be as accurate or as efficient as a hardware
PWM, but it is useful in some cas

pwm: Add GPIO PWM driver

Add a software PWM which toggles a GPIO from a high-resolution timer.

This will naturally not be as accurate or as efficient as a hardware
PWM, but it is useful in some cases. I have for example used it for
evaluating LED brightness handling (via leds-pwm) on a board where the
LED was just hooked up to a GPIO, and for a simple verification of the
timer frequency on another platform.

Since high-resolution timers are used, sleeping GPIO chips are not
supported and are rejected in the probe function.

Signed-off-by: Vincent Whitchurch <[email protected]>
Co-developed-by: Stefan Wahren <[email protected]>
Signed-off-by: Stefan Wahren <[email protected]>
Co-developed-by: Linus Walleij <[email protected]>
Reviewed-by: Andy Shevchenko <[email protected]>
Signed-off-by: Linus Walleij <[email protected]>
Reviewed-by: Dhruva Gole <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Uwe Kleine-König <[email protected]>

show more ...

pwm: Add driver for AXI PWM generator

Add support for the Analog Devices AXI PWM Generator. This device is an
FPGA-implemented peripheral used as PWM signal generator and can be
interfaced with AXI4

pwm: Add driver for AXI PWM generator

Add support for the Analog Devices AXI PWM Generator. This device is an
FPGA-implemented peripheral used as PWM signal generator and can be
interfaced with AXI4. The register map of this peripheral makes it
possible to configure the period and duty cycle of the output signal.

Link: https://analogdevicesinc.github.io/hdl/library/axi_pwm_gen/index.html
Co-developed-by: Sergiu Cuciurean <[email protected]>
Signed-off-by: Sergiu Cuciurean <[email protected]>
Co-developed-by: David Lechner <[email protected]>
Signed-off-by: David Lechner <[email protected]>
Signed-off-by: Drew Fustini <[email protected]>
Acked-by: Nuno Sa <[email protected]>
Co-developed-by: Trevor Gamblin <[email protected]>
Signed-off-by: Trevor Gamblin <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Uwe Kleine-König <[email protected]>

show more ...

pwm: Move contents of sysfs.c into core.c

With the upcoming restructuring having all in a single file simplifies
things a bit. The relevant and somewhat visible changes are:

- Some dropped prototy

pwm: Move contents of sysfs.c into core.c

With the upcoming restructuring having all in a single file simplifies
things a bit. The relevant and somewhat visible changes are:

- Some dropped prototypes from include/linux/pwm.h that were only
necessary that core.c has a declaration of the symbols defined in
sysfs.c. The respective functions are static now.

- The pwm class now also exists if CONFIG_SYSFS isn't enabled. Having
CONFIG_SYSFS is not very relevant today, but even without it the
class and device stuff still provides lifetime tracking.

- Both files had an initcall, these are merged into a single one now.
Instead of a big #ifdef block for CONFIG_DEBUG_FS, a single
if (IS_ENABLED(CONFIG_DEBUG_FS)) is used now. This increases compile
coverage a bit and is a tad nicer on the eyes.

Link: https://lore.kernel.org/r/9e2d39a5280d7dda5bfc6682a8aef510148635b2.1710670958.git.u.kleine-koenig@pengutronix.de
Signed-off-by: Uwe Kleine-König <[email protected]>

show more ...

pwm: dwc: split pci out of core driver

Moving towards adding non-pci support for the driver, move the pci
parts out of the core into their own module. This is partly due to
the module_driver() code

pwm: dwc: split pci out of core driver

Moving towards adding non-pci support for the driver, move the pci
parts out of the core into their own module. This is partly due to
the module_driver() code only being allowed once in a module and also
to avoid a number of #ifdef if we build a single file in a system
without pci support.

Signed-off-by: Ben Dooks <[email protected]>
Acked-by: Uwe Kleine-König <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Uwe Kleine-König <[email protected]>
Signed-off-by: Thierry Reding <[email protected]>

show more ...

pwm: Add Renesas RZ/G2L MTU3a PWM driver

The RZ/G2L Multi-Function Timer Pulse Unit 3 (a.k.a MTU3a) uses
one counter and two match components to configure duty_cycle
and period to generate PWM outpu

pwm: Add Renesas RZ/G2L MTU3a PWM driver

The RZ/G2L Multi-Function Timer Pulse Unit 3 (a.k.a MTU3a) uses
one counter and two match components to configure duty_cycle
and period to generate PWM output waveform.

Add basic support for RZ/G2L MTU3a PWM driver by creating separate
PWM channels for each IOs.

Signed-off-by: Biju Das <[email protected]>
Reviewed-by: Uwe Kleine-König <[email protected]>
Signed-off-by: Thierry Reding <[email protected]>

show more ...

pwm: add microchip soft ip corePWM driver

Add a driver that supports the Microchip FPGA "soft" PWM IP core.

Signed-off-by: Conor Dooley <[email protected]>
Reviewed-by: Uwe Kleine-König <u

pwm: add microchip soft ip corePWM driver

Add a driver that supports the Microchip FPGA "soft" PWM IP core.

Signed-off-by: Conor Dooley <[email protected]>
Reviewed-by: Uwe Kleine-König <[email protected]>
Signed-off-by: Thierry Reding <[email protected]>

show more ...

pwm: Add Apple PWM controller

Adds the Apple PWM controller driver.

Signed-off-by: Sasha Finkelstein <[email protected]>
Acked-by: Sven Peter <[email protected]>
Reviewed-by: Uwe Kleine-König

pwm: Add Apple PWM controller

Adds the Apple PWM controller driver.

Signed-off-by: Sasha Finkelstein <[email protected]>
Acked-by: Sven Peter <[email protected]>
Reviewed-by: Uwe Kleine-König <[email protected]>
Signed-off-by: Thierry Reding <[email protected]>

show more ...

pwm: Add clock based PWM output driver

Some systems have clocks exposed to external devices. If the clock
controller supports duty-cycle configuration, such clocks can be used as
pwm outputs. In fac

pwm: Add clock based PWM output driver

Some systems have clocks exposed to external devices. If the clock
controller supports duty-cycle configuration, such clocks can be used as
pwm outputs. In fact PWM and CLK subsystems are interfaced with in a
similar way and an "opposite" driver already exists (clk-pwm). Add a
driver that would enable pwm devices to be used via clk subsystem.

Acked-by: Uwe Kleine-König <[email protected]>
Signed-off-by: Nikita Travkin <[email protected]>
Signed-off-by: Thierry Reding <[email protected]>

show more ...

pwm: sunplus-pwm: Add Sunplus SoC SP7021 PWM Driver

Add Sunplus SoC SP7021 PWM Driver

Signed-off-by: Hammer Hsieh <[email protected]>
Signed-off-by: Thierry Reding <[email protected]>

pwm: Add support for Xilinx AXI Timer

This adds PWM support for Xilinx LogiCORE IP AXI soft timers commonly
found on Xilinx FPGAs. At the moment clock control is very basic: we
just enable the clock

pwm: Add support for Xilinx AXI Timer

This adds PWM support for Xilinx LogiCORE IP AXI soft timers commonly
found on Xilinx FPGAs. At the moment clock control is very basic: we
just enable the clock during probe and pin the frequency. In the future,
someone could add support for disabling the clock when not in use.

Some common code has been specially demarcated. While currently only
used by the PWM driver, it is anticipated that it may be split off in
the future to be used by the timer driver as well.

This driver was written with reference to Xilinx DS764 for v1.03.a [1].

[1] https://www.xilinx.com/support/documentation/ip_documentation/axi_timer/v1_03_a/axi_timer_ds764.pdf

Signed-off-by: Sean Anderson <[email protected]>
Acked-by: Michal Simek <[email protected]>
Reviewed-by: Uwe Kleine-König <[email protected]>
Signed-off-by: Thierry Reding <[email protected]>

show more ...

pwm: visconti: Add Toshiba Visconti SoC PWM support

Add driver for the PWM controller on Toshiba Visconti ARM SoC.

Signed-off-by: Nobuhiro Iwamatsu <[email protected]>
Reviewed-by: U

pwm: visconti: Add Toshiba Visconti SoC PWM support

Add driver for the PWM controller on Toshiba Visconti ARM SoC.

Signed-off-by: Nobuhiro Iwamatsu <[email protected]>
Reviewed-by: Uwe Kleine-König <[email protected]>
[[email protected]: fix up a couple of checkpatch warnings]
Signed-off-by: Thierry Reding <[email protected]>

show more ...

pwm: Add Raspberry Pi Firmware based PWM bus

Adds support to control the PWM bus available in official Raspberry Pi
PoE HAT. Only RPi's co-processor has access to it, so commands have to
be sent thr

pwm: Add Raspberry Pi Firmware based PWM bus

Adds support to control the PWM bus available in official Raspberry Pi
PoE HAT. Only RPi's co-processor has access to it, so commands have to
be sent through RPi's firmware mailbox interface.

Signed-off-by: Nicolas Saenz Julienne <[email protected]>
Reviewed-by: Uwe Kleine-König <[email protected]>
Acked-by: Thierry Reding <[email protected]>

show more ...

pwm: ntxec: Add driver for PWM function in Netronix EC

The Netronix EC provides a PWM output which is used for the backlight
on some ebook readers. This patches adds a driver for the PWM output.

Th

pwm: ntxec: Add driver for PWM function in Netronix EC

The Netronix EC provides a PWM output which is used for the backlight
on some ebook readers. This patches adds a driver for the PWM output.

The .get_state callback is not implemented, because the PWM state can't
be read back from the hardware.

Signed-off-by: Jonathan Neuschäfer <[email protected]>
Reviewed-by: Uwe Kleine-König <[email protected]>
Acked-by: Thierry Reding <[email protected]>
Signed-off-by: Lee Jones <[email protected]>

show more ...

pwm: Remove ZTE ZX driver

The ZTE ZX platform is getting removed, so this driver is no longer
needed.

Cc: Jun Nie <[email protected]>
Cc: Shawn Guo <[email protected]>
Signed-off-by: Arnd Bergma

pwm: Remove ZTE ZX driver

The ZTE ZX platform is getting removed, so this driver is no longer
needed.

Cc: Jun Nie <[email protected]>
Cc: Shawn Guo <[email protected]>
Signed-off-by: Arnd Bergmann <[email protected]>
Signed-off-by: Thierry Reding <[email protected]>

show more ...

pwm: Add PWM fan controller driver for LGM SoC

Intel Lightning Mountain(LGM) SoC contains a PWM fan controller. This
PWM controller does not have any other consumer, it is a dedicated PWM
controller

pwm: Add PWM fan controller driver for LGM SoC

Intel Lightning Mountain(LGM) SoC contains a PWM fan controller. This
PWM controller does not have any other consumer, it is a dedicated PWM
controller for fan attached to the system. Add driver for this PWM fan
controller.

Signed-off-by: Rahul Tanwar <[email protected]>
Reviewed-by: Andy Shevchenko <[email protected]>
Reviewed-by: Uwe Kleine-König <[email protected]>
Signed-off-by: Thierry Reding <[email protected]>

show more ...

pwm: Add DesignWare PWM Controller Driver

Introduce driver for Synopsys DesignWare PWM Controller used on Intel
Elkhart Lake.

Initial implementation is done by Felipe Balbi while he was working at

pwm: Add DesignWare PWM Controller Driver

Introduce driver for Synopsys DesignWare PWM Controller used on Intel
Elkhart Lake.

Initial implementation is done by Felipe Balbi while he was working at
Intel with later changes from Raymond Tan and me.

Co-developed-by: Felipe Balbi (Intel) <[email protected]>
Signed-off-by: Felipe Balbi (Intel) <[email protected]>
Co-developed-by: Raymond Tan <[email protected]>
Signed-off-by: Raymond Tan <[email protected]>
Signed-off-by: Jarkko Nikula <[email protected]>
Signed-off-by: Thierry Reding <[email protected]>

show more ...

pwm: Add PWM driver for Intel Keem Bay

The Intel Keem Bay SoC requires PWM support.
Add the pwm-keembay driver to enable this.

Signed-off-by: Lai, Poey Seng <[email protected]>
Co-developed-b

pwm: Add PWM driver for Intel Keem Bay

The Intel Keem Bay SoC requires PWM support.
Add the pwm-keembay driver to enable this.

Signed-off-by: Lai, Poey Seng <[email protected]>
Co-developed-by: Vineetha G. Jaya Kumaran <[email protected]>
Signed-off-by: Vineetha G. Jaya Kumaran <[email protected]>
Reviewed-by: Andy Shevchenko <[email protected]>
Co-developed-by: Vijayakannan Ayyathurai <[email protected]>
Signed-off-by: Vijayakannan Ayyathurai <[email protected]>
Reviewed-by: Uwe Kleine-König <[email protected]>
Signed-off-by: Thierry Reding <[email protected]>

show more ...

pwm: Add support for sl28cpld PWM controller

Add support for the PWM controller of the sl28cpld board management
controller. This is part of a multi-function device driver.

The controller has one P

pwm: Add support for sl28cpld PWM controller

Add support for the PWM controller of the sl28cpld board management
controller. This is part of a multi-function device driver.

The controller has one PWM channel and can just generate four distinct
frequencies.

Signed-off-by: Michael Walle <[email protected]>
Acked-by: Thierry Reding <[email protected]>
Reviewed-by: Uwe Kleine-König <[email protected]>
Signed-off-by: Lee Jones <[email protected]>

show more ...

pwm: remove pwm-puv3 driver

The unicore32 port is removed from the kernel.
There is no point to keep stale PWM driver for this architecture.

Signed-off-by: Mike Rapoport <[email protected]>
Acked

pwm: remove pwm-puv3 driver

The unicore32 port is removed from the kernel.
There is no point to keep stale PWM driver for this architecture.

Signed-off-by: Mike Rapoport <[email protected]>
Acked-by: Arnd Bergmann <[email protected]>
Acked-by: Guenter Roeck <[email protected]>

show more ...

pwm: Add support for Azoteq IQS620A PWM generator

This patch adds support for the Azoteq IQS620A, capable of generating
a 1-kHz PWM output with duty cycle between ~0.4% and 100% (inclusive).

Signed

pwm: Add support for Azoteq IQS620A PWM generator

This patch adds support for the Azoteq IQS620A, capable of generating
a 1-kHz PWM output with duty cycle between ~0.4% and 100% (inclusive).

Signed-off-by: Jeff LaBundy <[email protected]>
Reviewed-by: Uwe Kleine-König <[email protected]>
Signed-off-by: Thierry Reding <[email protected]>

show more ...

bus/ti-pwmss: move TI PWMSS driver from PWM to bus subsystem

The TI PWMSS driver is a simple bus driver for providing power
power management for the PWM peripherals on TI AM33xx SoCs, namely
eCAP, e

bus/ti-pwmss: move TI PWMSS driver from PWM to bus subsystem

The TI PWMSS driver is a simple bus driver for providing power
power management for the PWM peripherals on TI AM33xx SoCs, namely
eCAP, eHRPWM and eQEP. The eQEP is a counter rather than a PWM, so
it does not make sense to have the bus driver in the PWM subsystem
since the PWMSS is not exclusive to PWM devices.

Signed-off-by: David Lechner <[email protected]>
Signed-off-by: Jonathan Cameron <[email protected]>

show more ...

pwm: sprd: Add Spreadtrum PWM support

This patch adds the Spreadtrum PWM support, which provides maximum 4
channels.

Signed-off-by: Neo Hou <[email protected]>
Signed-off-by: Baolin Wang <baolin.w

pwm: sprd: Add Spreadtrum PWM support

This patch adds the Spreadtrum PWM support, which provides maximum 4
channels.

Signed-off-by: Neo Hou <[email protected]>
Signed-off-by: Baolin Wang <[email protected]>
Signed-off-by: Thierry Reding <[email protected]>

show more ...

pwm: sifive: Add a driver for SiFive SoC PWM

Adds a PWM driver for PWM chip present in SiFive's HiFive Unleashed SoC.

Signed-off-by: Wesley W. Terpstra <[email protected]>
[Atish: Various fixes and

pwm: sifive: Add a driver for SiFive SoC PWM

Adds a PWM driver for PWM chip present in SiFive's HiFive Unleashed SoC.

Signed-off-by: Wesley W. Terpstra <[email protected]>
[Atish: Various fixes and code cleanup]
Signed-off-by: Atish Patra <[email protected]>
Signed-off-by: Yash Shah <[email protected]>
Reviewed-by: Uwe Kleine-König <[email protected]>
Signed-off-by: Thierry Reding <[email protected]>

show more ...