e9b503879f
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 <xiaoning.wang@nxp.com>
Reviewed-by: Frank Li <Frank.Li@nxp.com>
Co-developed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Acked-by: Uwe Kleine-König <ukleinek@kernel.org>
Link: https://lore.kernel.org/r/20240722121100.2855-5-laurent.pinchart@ideasonboard.com
Signed-off-by: Lee Jones <lee@kernel.org>
749 lines
22 KiB
Plaintext
749 lines
22 KiB
Plaintext
# SPDX-License-Identifier: GPL-2.0-only
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menuconfig PWM
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bool "Pulse-Width Modulation (PWM) Support"
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help
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Generic Pulse-Width Modulation (PWM) support.
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In Pulse-Width Modulation, a variation of the width of pulses
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in a rectangular pulse signal is used as a means to alter the
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average power of the signal. Applications include efficient
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power delivery and voltage regulation. In computer systems,
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PWMs are commonly used to control fans or the brightness of
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display backlights.
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This framework provides a generic interface to PWM devices
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within the Linux kernel. On the driver side it provides an API
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to register and unregister a PWM chip, an abstraction of a PWM
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controller, that supports one or more PWM devices. Client
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drivers can request PWM devices and use the generic framework
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to configure as well as enable and disable them.
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This generic framework replaces the legacy PWM framework which
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allows only a single driver implementing the required API. Not
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all legacy implementations have been ported to the framework
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yet. The framework provides an API that is backward compatible
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with the legacy framework so that existing client drivers
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continue to work as expected.
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If unsure, say no.
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if PWM
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config PWM_DEBUG
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bool "PWM lowlevel drivers additional checks and debug messages"
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depends on DEBUG_KERNEL
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help
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This option enables some additional checks to help lowlevel driver
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authors to get their callbacks implemented correctly.
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It is expected to introduce some runtime overhead and diagnostic
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output to the kernel log, so only enable while working on a driver.
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config PWM_AB8500
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tristate "AB8500 PWM support"
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depends on AB8500_CORE && ARCH_U8500
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help
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Generic PWM framework driver for Analog Baseband AB8500.
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To compile this driver as a module, choose M here: the module
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will be called pwm-ab8500.
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config PWM_ADP5585
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tristate "ADP5585 PWM support"
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depends on MFD_ADP5585
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help
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This option enables support for the PWM function found in the Analog
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Devices ADP5585.
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config PWM_APPLE
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tristate "Apple SoC PWM support"
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depends on ARCH_APPLE || COMPILE_TEST
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help
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Generic PWM framework driver for PWM controller present on
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Apple SoCs
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Say Y here if you have an ARM Apple laptop, otherwise say N
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To compile this driver as a module, choose M here: the module
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will be called pwm-apple.
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config PWM_ATMEL
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tristate "Atmel PWM support"
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depends on ARCH_AT91 || COMPILE_TEST
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depends on HAS_IOMEM && OF
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help
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Generic PWM framework driver for Atmel SoC.
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To compile this driver as a module, choose M here: the module
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will be called pwm-atmel.
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config PWM_ATMEL_HLCDC_PWM
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tristate "Atmel HLCDC PWM support"
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depends on MFD_ATMEL_HLCDC
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depends on HAVE_CLK
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help
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Generic PWM framework driver for the PWM output of the HLCDC
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(Atmel High-end LCD Controller). This PWM output is mainly used
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to control the LCD backlight.
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To compile this driver as a module, choose M here: the module
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will be called pwm-atmel-hlcdc.
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config PWM_ATMEL_TCB
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tristate "Atmel TC Block PWM support"
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depends on OF
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select REGMAP_MMIO
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help
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Generic PWM framework driver for Atmel Timer Counter Block.
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A Timer Counter Block provides 6 PWM devices grouped by 2.
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Devices in a given group must have the same period.
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To compile this driver as a module, choose M here: the module
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will be called pwm-atmel-tcb.
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config PWM_AXI_PWMGEN
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tristate "Analog Devices AXI PWM generator"
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depends on MICROBLAZE || NIOS2 || ARCH_ZYNQ || ARCH_ZYNQMP || ARCH_INTEL_SOCFPGA || COMPILE_TEST
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select REGMAP_MMIO
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help
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This enables support for the Analog Devices AXI PWM generator.
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This is a configurable PWM generator with variable pulse width and
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period.
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To compile this driver as a module, choose M here: the module will be
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called pwm-axi-pwmgen.
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config PWM_BCM_IPROC
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tristate "iProc PWM support"
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depends on ARCH_BCM_IPROC || COMPILE_TEST
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depends on COMMON_CLK && HAS_IOMEM
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default ARCH_BCM_IPROC
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help
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Generic PWM framework driver for Broadcom iProc PWM block. This
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block is used in Broadcom iProc SoC's.
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To compile this driver as a module, choose M here: the module
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will be called pwm-bcm-iproc.
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config PWM_BCM_KONA
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tristate "Kona PWM support"
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depends on ARCH_BCM_MOBILE || ARCH_BCM_CYGNUS || COMPILE_TEST
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depends on HAVE_CLK && HAS_IOMEM
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default ARCH_BCM_MOBILE || ARCH_BCM_CYGNUS
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help
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Generic PWM framework driver for Broadcom Kona PWM block.
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To compile this driver as a module, choose M here: the module
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will be called pwm-bcm-kona.
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config PWM_BCM2835
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tristate "BCM2835 PWM support"
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depends on ARCH_BCM2835 || ARCH_BRCMSTB || COMPILE_TEST
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depends on HAS_IOMEM
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help
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PWM framework driver for BCM2835 controller (Raspberry Pi)
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To compile this driver as a module, choose M here: the module
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will be called pwm-bcm2835.
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config PWM_BERLIN
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tristate "Marvell Berlin PWM support"
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depends on ARCH_BERLIN || COMPILE_TEST
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depends on HAS_IOMEM
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help
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PWM framework driver for Marvell Berlin SoCs.
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To compile this driver as a module, choose M here: the module
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will be called pwm-berlin.
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config PWM_BRCMSTB
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tristate "Broadcom STB PWM support"
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depends on ARCH_BRCMSTB || BMIPS_GENERIC || COMPILE_TEST
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depends on HAS_IOMEM
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help
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Generic PWM framework driver for the Broadcom Set-top-Box
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SoCs (BCM7xxx).
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To compile this driver as a module, choose M Here: the module
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will be called pwm-brcmstb.c.
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config PWM_CLK
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tristate "Clock based PWM support"
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depends on HAVE_CLK || COMPILE_TEST
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help
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Generic PWM framework driver for outputs that can be
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muxed to clocks.
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To compile this driver as a module, choose M here: the module
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will be called pwm-clk.
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config PWM_CLPS711X
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tristate "CLPS711X PWM support"
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depends on ARCH_CLPS711X || COMPILE_TEST
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depends on HAS_IOMEM
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help
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Generic PWM framework driver for Cirrus Logic CLPS711X.
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To compile this driver as a module, choose M here: the module
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will be called pwm-clps711x.
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config PWM_CRC
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tristate "Intel Crystalcove (CRC) PWM support"
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depends on INTEL_SOC_PMIC
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help
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Generic PWM framework driver for Crystalcove (CRC) PMIC based PWM
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control.
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config PWM_CROS_EC
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tristate "ChromeOS EC PWM driver"
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depends on CROS_EC
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help
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PWM driver for exposing a PWM attached to the ChromeOS Embedded
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Controller.
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config PWM_DWC_CORE
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tristate
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depends on HAS_IOMEM
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help
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PWM driver for Synopsys DWC PWM Controller.
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To compile this driver as a module, build the dependecies as
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modules, this will be called pwm-dwc-core.
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config PWM_DWC
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tristate "DesignWare PWM Controller (PCI bus)"
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depends on HAS_IOMEM && PCI
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select PWM_DWC_CORE
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help
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PWM driver for Synopsys DWC PWM Controller attached to a PCI bus.
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To compile this driver as a module, choose M here: the module
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will be called pwm-dwc.
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config PWM_EP93XX
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tristate "Cirrus Logic EP93xx PWM support"
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depends on ARCH_EP93XX || COMPILE_TEST
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depends on HAS_IOMEM
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help
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Generic PWM framework driver for Cirrus Logic EP93xx.
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To compile this driver as a module, choose M here: the module
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will be called pwm-ep93xx.
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config PWM_FSL_FTM
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tristate "Freescale FlexTimer Module (FTM) PWM support"
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depends on HAS_IOMEM
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depends on OF
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select REGMAP_MMIO
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help
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Generic FTM PWM framework driver for Freescale VF610 and
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Layerscape LS-1 SoCs.
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To compile this driver as a module, choose M here: the module
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will be called pwm-fsl-ftm.
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config PWM_GPIO
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tristate "GPIO PWM support"
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depends on GPIOLIB
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depends on HIGH_RES_TIMERS
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help
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Generic PWM framework driver for software PWM toggling a GPIO pin
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from kernel high-resolution timers.
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To compile this driver as a module, choose M here: the module
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will be called pwm-gpio.
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config PWM_HIBVT
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tristate "HiSilicon BVT PWM support"
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depends on ARCH_HISI || COMPILE_TEST
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depends on HAS_IOMEM
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help
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Generic PWM framework driver for HiSilicon BVT SoCs.
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To compile this driver as a module, choose M here: the module
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will be called pwm-hibvt.
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config PWM_IMG
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tristate "Imagination Technologies PWM driver"
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depends on HAS_IOMEM
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depends on MFD_SYSCON
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depends on COMMON_CLK
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depends on MIPS || COMPILE_TEST
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help
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Generic PWM framework driver for Imagination Technologies
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PWM block which supports 4 channels.
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To compile this driver as a module, choose M here: the module
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will be called pwm-img
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config PWM_IMX1
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tristate "i.MX1 PWM support"
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depends on ARCH_MXC || COMPILE_TEST
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depends on HAS_IOMEM
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help
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Generic PWM framework driver for i.MX1 and i.MX21
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To compile this driver as a module, choose M here: the module
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will be called pwm-imx1.
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config PWM_IMX27
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tristate "i.MX27 PWM support"
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depends on ARCH_MXC || COMPILE_TEST
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depends on HAS_IOMEM
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help
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Generic PWM framework driver for i.MX27 and later i.MX SoCs.
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To compile this driver as a module, choose M here: the module
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will be called pwm-imx27.
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config PWM_IMX_TPM
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tristate "i.MX TPM PWM support"
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depends on ARCH_MXC || COMPILE_TEST
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depends on HAVE_CLK && HAS_IOMEM
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help
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Generic PWM framework driver for i.MX7ULP TPM module, TPM's full
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name is Low Power Timer/Pulse Width Modulation Module.
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To compile this driver as a module, choose M here: the module
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will be called pwm-imx-tpm.
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config PWM_INTEL_LGM
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tristate "Intel LGM PWM support"
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depends on HAS_IOMEM
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depends on (OF && X86) || COMPILE_TEST
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select REGMAP_MMIO
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help
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Generic PWM fan controller driver for LGM SoC.
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To compile this driver as a module, choose M here: the module
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will be called pwm-intel-lgm.
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config PWM_IQS620A
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tristate "Azoteq IQS620A PWM support"
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depends on MFD_IQS62X || COMPILE_TEST
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help
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Generic PWM framework driver for the Azoteq IQS620A multi-function
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sensor.
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To compile this driver as a module, choose M here: the module will
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be called pwm-iqs620a.
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config PWM_JZ4740
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tristate "Ingenic JZ47xx PWM support"
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depends on MACH_INGENIC || COMPILE_TEST
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depends on COMMON_CLK && OF
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select MFD_SYSCON
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help
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Generic PWM framework driver for Ingenic JZ47xx based
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machines.
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To compile this driver as a module, choose M here: the module
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will be called pwm-jz4740.
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config PWM_KEEMBAY
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tristate "Intel Keem Bay PWM driver"
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depends on ARCH_KEEMBAY || COMPILE_TEST
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depends on COMMON_CLK && HAS_IOMEM
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help
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The platform driver for Intel Keem Bay PWM controller.
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To compile this driver as a module, choose M here: the module
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will be called pwm-keembay.
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config PWM_LP3943
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tristate "TI/National Semiconductor LP3943 PWM support"
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depends on MFD_LP3943
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help
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Generic PWM framework driver for LP3943 which supports two PWM
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channels.
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To compile this driver as a module, choose M here: the module
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will be called pwm-lp3943.
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config PWM_LPC18XX_SCT
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tristate "LPC18xx/43xx PWM/SCT support"
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depends on ARCH_LPC18XX || COMPILE_TEST
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depends on HAS_IOMEM
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help
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Generic PWM framework driver for NXP LPC18xx PWM/SCT which
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supports 16 channels.
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A maximum of 15 channels can be requested simultaneously and
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must have the same period.
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To compile this driver as a module, choose M here: the module
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will be called pwm-lpc18xx-sct.
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config PWM_LPC32XX
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tristate "LPC32XX PWM support"
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depends on ARCH_LPC32XX || COMPILE_TEST
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depends on HAS_IOMEM
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help
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Generic PWM framework driver for LPC32XX. The LPC32XX SOC has two
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PWM controllers.
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To compile this driver as a module, choose M here: the module
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will be called pwm-lpc32xx.
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config PWM_LPSS
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depends on HAS_IOMEM
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tristate
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config PWM_LPSS_PCI
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tristate "Intel LPSS PWM PCI driver"
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depends on X86 || COMPILE_TEST
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depends on HAS_IOMEM && PCI
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select PWM_LPSS
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help
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The PCI driver for Intel Low Power Subsystem PWM controller.
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To compile this driver as a module, choose M here: the module
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will be called pwm-lpss-pci.
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config PWM_LPSS_PLATFORM
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tristate "Intel LPSS PWM platform driver"
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depends on (X86 && ACPI) || COMPILE_TEST
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depends on HAS_IOMEM
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select PWM_LPSS
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help
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The platform driver for Intel Low Power Subsystem PWM controller.
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To compile this driver as a module, choose M here: the module
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will be called pwm-lpss-platform.
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config PWM_MESON
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tristate "Amlogic Meson PWM driver"
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depends on ARCH_MESON || COMPILE_TEST
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depends on COMMON_CLK && HAS_IOMEM
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help
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The platform driver for Amlogic Meson PWM controller.
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To compile this driver as a module, choose M here: the module
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will be called pwm-meson.
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config PWM_MTK_DISP
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tristate "MediaTek display PWM driver"
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depends on ARCH_MEDIATEK || COMPILE_TEST
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depends on HAS_IOMEM
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help
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Generic PWM framework driver for MediaTek disp-pwm device.
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The PWM is used to control the backlight brightness for display.
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To compile this driver as a module, choose M here: the module
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will be called pwm-mtk-disp.
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config PWM_MEDIATEK
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tristate "MediaTek PWM support"
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depends on ARCH_MEDIATEK || RALINK || COMPILE_TEST
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depends on HAS_IOMEM
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help
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Generic PWM framework driver for Mediatek ARM SoC.
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To compile this driver as a module, choose M here: the module
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will be called pwm-mediatek.
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config PWM_MICROCHIP_CORE
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tristate "Microchip corePWM PWM support"
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depends on ARCH_MICROCHIP_POLARFIRE || COMPILE_TEST
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depends on HAS_IOMEM && OF
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help
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PWM driver for Microchip FPGA soft IP core.
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To compile this driver as a module, choose M here: the module
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will be called pwm-microchip-core.
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config PWM_MXS
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tristate "Freescale MXS PWM support"
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depends on ARCH_MXS || COMPILE_TEST
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depends on HAS_IOMEM && OF
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select STMP_DEVICE
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help
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Generic PWM framework driver for Freescale MXS.
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To compile this driver as a module, choose M here: the module
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will be called pwm-mxs.
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config PWM_NTXEC
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tristate "Netronix embedded controller PWM support"
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depends on MFD_NTXEC
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help
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Say yes here if you want to support the PWM output of the embedded
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controller found in certain e-book readers designed by the original
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design manufacturer Netronix.
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config PWM_OMAP_DMTIMER
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tristate "OMAP Dual-Mode Timer PWM support"
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depends on OF
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depends on OMAP_DM_TIMER || COMPILE_TEST
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help
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Generic PWM framework driver for OMAP Dual-Mode Timer PWM output
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To compile this driver as a module, choose M here: the module
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will be called pwm-omap-dmtimer
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config PWM_PCA9685
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tristate "NXP PCA9685 PWM driver"
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depends on I2C
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select REGMAP_I2C
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help
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Generic PWM framework driver for NXP PCA9685 LED controller.
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To compile this driver as a module, choose M here: the module
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will be called pwm-pca9685.
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config PWM_PXA
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tristate "PXA PWM support"
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depends on ARCH_PXA || ARCH_MMP || COMPILE_TEST
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depends on HAS_IOMEM
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help
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Generic PWM framework driver for PXA.
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To compile this driver as a module, choose M here: the module
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will be called pwm-pxa.
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config PWM_RASPBERRYPI_POE
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tristate "Raspberry Pi Firwmware PoE Hat PWM support"
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# Make sure not 'y' when RASPBERRYPI_FIRMWARE is 'm'. This can only
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# happen when COMPILE_TEST=y, hence the added !RASPBERRYPI_FIRMWARE.
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depends on RASPBERRYPI_FIRMWARE || (COMPILE_TEST && !RASPBERRYPI_FIRMWARE)
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help
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Enable Raspberry Pi firmware controller PWM bus used to control the
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official RPI PoE hat
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config PWM_RCAR
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tristate "Renesas R-Car PWM support"
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depends on ARCH_RENESAS || COMPILE_TEST
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depends on HAS_IOMEM
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help
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This driver exposes the PWM Timer controller found in Renesas
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R-Car chips through the PWM API.
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To compile this driver as a module, choose M here: the module
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will be called pwm-rcar.
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config PWM_RENESAS_TPU
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tristate "Renesas TPU PWM support"
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depends on ARCH_RENESAS || COMPILE_TEST
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depends on HAS_IOMEM
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help
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This driver exposes the Timer Pulse Unit (TPU) PWM controller found
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in Renesas chips through the PWM API.
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To compile this driver as a module, choose M here: the module
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will be called pwm-renesas-tpu.
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config PWM_ROCKCHIP
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tristate "Rockchip PWM support"
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depends on ARCH_ROCKCHIP || COMPILE_TEST
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depends on HAS_IOMEM
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help
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Generic PWM framework driver for the PWM controller found on
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Rockchip SoCs.
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config PWM_RZ_MTU3
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tristate "Renesas RZ/G2L MTU3a PWM Timer support"
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depends on RZ_MTU3
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depends on HAS_IOMEM
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help
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This driver exposes the MTU3a PWM Timer controller found in Renesas
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RZ/G2L like chips through the PWM API.
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To compile this driver as a module, choose M here: the module
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will be called pwm-rz-mtu3.
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config PWM_SAMSUNG
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tristate "Samsung PWM support"
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depends on PLAT_SAMSUNG || ARCH_S5PV210 || ARCH_EXYNOS || COMPILE_TEST
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depends on HAS_IOMEM
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help
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Generic PWM framework driver for Samsung S3C24xx, S3C64xx, S5Pv210
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and Exynos SoCs.
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Choose Y here only if you build for such Samsung SoC.
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To compile this driver as a module, choose M here: the module
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will be called pwm-samsung.
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config PWM_SIFIVE
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tristate "SiFive PWM support"
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depends on OF
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depends on COMMON_CLK && HAS_IOMEM
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depends on RISCV || COMPILE_TEST
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help
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Generic PWM framework driver for SiFive SoCs.
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To compile this driver as a module, choose M here: the module
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will be called pwm-sifive.
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config PWM_SL28CPLD
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tristate "Kontron sl28cpld PWM support"
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depends on MFD_SL28CPLD || COMPILE_TEST
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help
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Generic PWM framework driver for board management controller
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found on the Kontron sl28 CPLD.
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To compile this driver as a module, choose M here: the module
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will be called pwm-sl28cpld.
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config PWM_SPEAR
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tristate "STMicroelectronics SPEAr PWM support"
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depends on PLAT_SPEAR || COMPILE_TEST
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depends on HAS_IOMEM && OF
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help
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Generic PWM framework driver for the PWM controller on ST
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SPEAr SoCs.
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To compile this driver as a module, choose M here: the module
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will be called pwm-spear.
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config PWM_SPRD
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tristate "Spreadtrum PWM support"
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depends on ARCH_SPRD || COMPILE_TEST
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depends on HAS_IOMEM
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help
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Generic PWM framework driver for the PWM controller on
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Spreadtrum SoCs.
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To compile this driver as a module, choose M here: the module
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will be called pwm-sprd.
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config PWM_STI
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tristate "STiH4xx PWM support"
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depends on ARCH_STI || COMPILE_TEST
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depends on HAS_IOMEM && OF
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help
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Generic PWM framework driver for STiH4xx SoCs.
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To compile this driver as a module, choose M here: the module
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will be called pwm-sti.
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config PWM_STM32
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tristate "STMicroelectronics STM32 PWM"
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depends on MFD_STM32_TIMERS || COMPILE_TEST
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help
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Generic PWM framework driver for STM32 SoCs.
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To compile this driver as a module, choose M here: the module
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will be called pwm-stm32.
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config PWM_STM32_LP
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tristate "STMicroelectronics STM32 PWM LP"
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depends on MFD_STM32_LPTIMER || COMPILE_TEST
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help
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Generic PWM framework driver for STMicroelectronics STM32 SoCs
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with Low-Power Timer (LPTIM).
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To compile this driver as a module, choose M here: the module
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will be called pwm-stm32-lp.
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config PWM_STMPE
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bool "STMPE expander PWM export"
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depends on MFD_STMPE
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help
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This enables support for the PWMs found in the STMPE I/O
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expanders.
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config PWM_SUN4I
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tristate "Allwinner PWM support"
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depends on ARCH_SUNXI || COMPILE_TEST
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depends on HAS_IOMEM && COMMON_CLK
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help
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Generic PWM framework driver for Allwinner SoCs.
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To compile this driver as a module, choose M here: the module
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will be called pwm-sun4i.
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config PWM_SUNPLUS
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tristate "Sunplus PWM support"
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depends on ARCH_SUNPLUS || COMPILE_TEST
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depends on HAS_IOMEM && OF
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help
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Generic PWM framework driver for the PWM controller on
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Sunplus SoCs.
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To compile this driver as a module, choose M here: the module
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will be called pwm-sunplus.
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config PWM_TEGRA
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tristate "NVIDIA Tegra PWM support"
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depends on ARCH_TEGRA || COMPILE_TEST
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depends on HAS_IOMEM
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help
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Generic PWM framework driver for the PWFM controller found on NVIDIA
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Tegra SoCs.
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To compile this driver as a module, choose M here: the module
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will be called pwm-tegra.
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config PWM_TIECAP
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tristate "ECAP PWM support"
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depends on ARCH_OMAP2PLUS || ARCH_DAVINCI_DA8XX || ARCH_KEYSTONE || ARCH_K3 || COMPILE_TEST
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depends on HAS_IOMEM
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help
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PWM driver support for the ECAP APWM controller found on TI SOCs
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To compile this driver as a module, choose M here: the module
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will be called pwm-tiecap.
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config PWM_TIEHRPWM
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tristate "EHRPWM PWM support"
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depends on ARCH_OMAP2PLUS || ARCH_DAVINCI_DA8XX || ARCH_K3 || COMPILE_TEST
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depends on HAS_IOMEM
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help
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PWM driver support for the EHRPWM controller found on TI SOCs
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To compile this driver as a module, choose M here: the module
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will be called pwm-tiehrpwm.
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config PWM_TWL
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tristate "TWL4030/6030 PWM support"
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depends on TWL4030_CORE
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help
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Generic PWM framework driver for TWL4030/6030.
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To compile this driver as a module, choose M here: the module
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will be called pwm-twl.
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config PWM_TWL_LED
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tristate "TWL4030/6030 PWM support for LED drivers"
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depends on TWL4030_CORE
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help
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Generic PWM framework driver for TWL4030/6030 LED terminals.
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To compile this driver as a module, choose M here: the module
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will be called pwm-twl-led.
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config PWM_VISCONTI
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tristate "Toshiba Visconti PWM support"
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depends on ARCH_VISCONTI || COMPILE_TEST
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help
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PWM Subsystem driver support for Toshiba Visconti SoCs.
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To compile this driver as a module, choose M here: the module
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will be called pwm-visconti.
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config PWM_VT8500
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tristate "vt8500 PWM support"
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depends on ARCH_VT8500 || COMPILE_TEST
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depends on HAS_IOMEM
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help
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Generic PWM framework driver for vt8500.
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To compile this driver as a module, choose M here: the module
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will be called pwm-vt8500.
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config PWM_XILINX
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tristate "Xilinx AXI Timer PWM support"
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depends on OF_ADDRESS
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depends on COMMON_CLK
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select REGMAP_MMIO
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help
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PWM driver for Xilinx LogiCORE IP AXI timers. This timer is
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typically a soft core which may be present in Xilinx FPGAs.
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This device may also be present in Microblaze soft processors.
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If you don't have this IP in your design, choose N.
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To compile this driver as a module, choose M here: the module
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will be called pwm-xilinx.
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endif
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