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398b60a8de
The patches for this release cycle include various enhancements (device tree support, better compile coverage, ...) for existing drivers. There is a new driver for Atmel SoCs. Various drivers as well as the sysfs support received minor fixes and cleanups. -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.22 (GNU/Linux) iQIcBAABAgAGBQJS5m3bAAoJEN0jrNd/PrOhukQP/RdjGTUc8McrOt6pU20xKedI Sg2HfA77ODWb1T8iigO31qOfCzEhtpl15AZ9kpj6sgLP17PQAlMBQWxQO9iHwRIv GSGCW8RoWq1yvMImBn6LswR6a+aczsbI46z9kMvBGAsl58AETjR82dxH/nuJ6CVw cTUIaysmnOhDCidPBSQ2JG/TrmAqhM1wmaixv/39LtIt3pFC5XKoj5rQqPlLKVrZ r87ZvwKdoX9z87L1gDOxybGOhcKJOKU8Qc8MlQjYzIUzwd91V7fsGF+98RB7e1k2 +I/U0YYRFVfLIc2xxHtQZe80khhWTAOEkzvVOS7jgoXI41AlIlT6rOQnRCuMRniv YfPTMAQDln+npDEZ4xgdB6qUHIUtduNm2sfL6hWox8xG3Z8Wk5b2IlyBx+kwhSwY MiM6UZjuENi+XjO/Ea+oJtD6CJ+U48g++mrQhB+BY1IzmEmIeMH6Qut5I0grotjm qgjw+hEoFL9lJ190OXM9Fxu8aoDcGCIWS/UtXTG8q+V/jBmMeBvqj2jscnrMsZXF 3CTpIquKIHe83A8CLdD0AXauE4TJ/8Eh0zY+jEJzBNDgIFkqZJPIVrmwPgMCFz5O 2Vux3WDxIqXDYJ1RjKeNGUFEfnRPa1PUqc2un9512xJkthXQD4EYE9/P+/MOVGXX UJoi2MMv4Cmkbs+bMTns =Rq3R -----END PGP SIGNATURE----- Merge tag 'pwm/for-3.14-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/thierry.reding/linux-pwm Pull pwm changes from Thierry Reding: "The patches for this release cycle include various enhancements (device tree support, better compile coverage, ...) for existing drivers. There is a new driver for Atmel SoCs. Various drivers as well as the sysfs support received minor fixes and cleanups" * tag 'pwm/for-3.14-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/thierry.reding/linux-pwm: pwm: tiecap: Remove duplicate put_sync call pwm: tiehrpwm: use dev_err() instead of pr_err() pwm: pxa: remove unnecessary space before tabs pwm: ep93xx: split module author names pwm: use seq_puts() instead of seq_printf() pwm: atmel-pwm: Do not unprepare clock after successful registration of: Add Atmel PWM controller device tree binding pwm: atmel-pwm: Add Atmel PWM controller driver backlight: pwm_bl: Remove error message upon devm_kzalloc() failure pwm: pca9685: depends on I2C rather than REGMAP_I2C pwm: renesas-tpu: Enable driver compilation with COMPILE_TEST pwm: jz4740: Use devm_clk_get() pwm: jz4740: Pass device to clk_get() pwm: sysfs: Convert to use ATTRIBUTE_GROUPS macro pwm: pxa: Add device tree support
257 lines
7.0 KiB
Plaintext
257 lines
7.0 KiB
Plaintext
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_SYSFS
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bool
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default y if SYSFS
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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_ATMEL
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tristate "Atmel PWM support"
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depends on ARCH_AT91
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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_TCB
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tristate "Atmel TC Block PWM support"
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depends on ATMEL_TCLIB && OF
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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_BFIN
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tristate "Blackfin PWM support"
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depends on BFIN_GPTIMERS
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help
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Generic PWM framework driver for Blackfin.
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To compile this driver as a module, choose M here: the module
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will be called pwm-bfin.
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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
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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_IMX
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tristate "i.MX PWM support"
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depends on ARCH_MXC
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help
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Generic PWM framework driver for i.MX.
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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.
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config PWM_JZ4740
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tristate "Ingenic JZ4740 PWM support"
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depends on MACH_JZ4740
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help
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Generic PWM framework driver for Ingenic JZ4740 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_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_LPC32XX
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tristate "LPC32XX PWM support"
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depends on ARCH_LPC32XX
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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_MXS
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tristate "Freescale MXS PWM support"
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depends on ARCH_MXS && 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_PCA9685
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tristate "NXP PCA9685 PWM driver"
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depends on OF && 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_PUV3
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tristate "PKUnity NetBook-0916 PWM support"
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depends on ARCH_PUV3
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help
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Generic PWM framework driver for PKUnity NetBook-0916.
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To compile this driver as a module, choose M here: the module
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will be called pwm-puv3.
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config PWM_PXA
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tristate "PXA PWM support"
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depends on ARCH_PXA
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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_RENESAS_TPU
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tristate "Renesas TPU PWM support"
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depends on ARCH_SHMOBILE || COMPILE_TEST
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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_SAMSUNG
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tristate "Samsung PWM support"
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depends on PLAT_SAMSUNG
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help
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Generic PWM framework driver for Samsung.
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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_SPEAR
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tristate "STMicroelectronics SPEAr PWM support"
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depends on PLAT_SPEAR
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depends on 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_TEGRA
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tristate "NVIDIA Tegra PWM support"
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depends on ARCH_TEGRA
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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 SOC_AM33XX || ARCH_DAVINCI_DA8XX
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help
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PWM driver support for the ECAP APWM controller found on AM33XX
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TI 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-tiecap.
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config PWM_TIEHRPWM
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tristate "EHRPWM PWM support"
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depends on SOC_AM33XX || ARCH_DAVINCI_DA8XX
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help
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PWM driver support for the EHRPWM controller found on AM33XX
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TI 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-tiehrpwm.
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config PWM_TIPWMSS
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bool
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default y if SOC_AM33XX && (PWM_TIECAP || PWM_TIEHRPWM)
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help
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PWM Subsystem driver support for AM33xx SOC.
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PWM submodules require PWM config space access from submodule
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drivers and require common parent driver support.
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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_VT8500
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tristate "vt8500 PWM support"
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depends on ARCH_VT8500
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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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endif
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