linux/drivers/pwm/Kconfig
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   1menuconfig PWM
   2        bool "Pulse-Width Modulation (PWM) Support"
   3        help
   4          Generic Pulse-Width Modulation (PWM) support.
   5
   6          In Pulse-Width Modulation, a variation of the width of pulses
   7          in a rectangular pulse signal is used as a means to alter the
   8          average power of the signal. Applications include efficient
   9          power delivery and voltage regulation. In computer systems,
  10          PWMs are commonly used to control fans or the brightness of
  11          display backlights.
  12
  13          This framework provides a generic interface to PWM devices
  14          within the Linux kernel. On the driver side it provides an API
  15          to register and unregister a PWM chip, an abstraction of a PWM
  16          controller, that supports one or more PWM devices. Client
  17          drivers can request PWM devices and use the generic framework
  18          to configure as well as enable and disable them.
  19
  20          This generic framework replaces the legacy PWM framework which
  21          allows only a single driver implementing the required API. Not
  22          all legacy implementations have been ported to the framework
  23          yet. The framework provides an API that is backward compatible
  24          with the legacy framework so that existing client drivers
  25          continue to work as expected.
  26
  27          If unsure, say no.
  28
  29if PWM
  30
  31config PWM_AB8500
  32        tristate "AB8500 PWM support"
  33        depends on AB8500_CORE && ARCH_U8500
  34        help
  35          Generic PWM framework driver for Analog Baseband AB8500.
  36
  37          To compile this driver as a module, choose M here: the module
  38          will be called pwm-ab8500.
  39
  40config PWM_BFIN
  41        tristate "Blackfin PWM support"
  42        depends on BFIN_GPTIMERS
  43        help
  44          Generic PWM framework driver for Blackfin.
  45
  46          To compile this driver as a module, choose M here: the module
  47          will be called pwm-bfin.
  48
  49config PWM_IMX
  50        tristate "i.MX pwm support"
  51        depends on ARCH_MXC
  52        help
  53          Generic PWM framework driver for i.MX.
  54
  55          To compile this driver as a module, choose M here: the module
  56          will be called pwm-imx.
  57
  58config PWM_JZ4740
  59        tristate "Ingenic JZ4740 PWM support"
  60        depends on MACH_JZ4740
  61        help
  62          Generic PWM framework driver for Ingenic JZ4740 based
  63          machines.
  64
  65          To compile this driver as a module, choose M here: the module
  66          will be called pwm-jz4740.
  67
  68config PWM_LPC32XX
  69        tristate "LPC32XX PWM support"
  70        depends on ARCH_LPC32XX
  71        help
  72          Generic PWM framework driver for LPC32XX. The LPC32XX SOC has two
  73          PWM controllers.
  74
  75          To compile this driver as a module, choose M here: the module
  76          will be called pwm-lpc32xx.
  77
  78config PWM_MXS
  79        tristate "Freescale MXS PWM support"
  80        depends on ARCH_MXS && OF
  81        select STMP_DEVICE
  82        help
  83          Generic PWM framework driver for Freescale MXS.
  84
  85          To compile this driver as a module, choose M here: the module
  86          will be called pwm-mxs.
  87
  88config PWM_PUV3
  89        tristate "PKUnity NetBook-0916 PWM support"
  90        depends on ARCH_PUV3
  91        help
  92          Generic PWM framework driver for PKUnity NetBook-0916.
  93
  94          To compile this driver as a module, choose M here: the module
  95          will be called pwm-puv3.
  96
  97config PWM_PXA
  98        tristate "PXA PWM support"
  99        depends on ARCH_PXA
 100        help
 101          Generic PWM framework driver for PXA.
 102
 103          To compile this driver as a module, choose M here: the module
 104          will be called pwm-pxa.
 105
 106config PWM_SAMSUNG
 107        tristate "Samsung pwm support"
 108        depends on PLAT_SAMSUNG
 109        help
 110          Generic PWM framework driver for Samsung.
 111
 112          To compile this driver as a module, choose M here: the module
 113          will be called pwm-samsung.
 114
 115config PWM_SPEAR
 116        tristate "STMicroelectronics SPEAr PWM support"
 117        depends on PLAT_SPEAR
 118        depends on OF
 119        help
 120          Generic PWM framework driver for the PWM controller on ST
 121          SPEAr SoCs.
 122
 123          To compile this driver as a module, choose M here: the module
 124          will be called pwm-spear.
 125
 126config PWM_TEGRA
 127        tristate "NVIDIA Tegra PWM support"
 128        depends on ARCH_TEGRA
 129        help
 130          Generic PWM framework driver for the PWFM controller found on NVIDIA
 131          Tegra SoCs.
 132
 133          To compile this driver as a module, choose M here: the module
 134          will be called pwm-tegra.
 135
 136config  PWM_TIECAP
 137        tristate "ECAP PWM support"
 138        depends on SOC_AM33XX
 139        select PWM_TIPWMSS
 140        help
 141          PWM driver support for the ECAP APWM controller found on AM33XX
 142          TI SOC
 143
 144          To compile this driver as a module, choose M here: the module
 145          will be called pwm-tiecap.
 146
 147config  PWM_TIEHRPWM
 148        tristate "EHRPWM PWM support"
 149        depends on SOC_AM33XX
 150        select PWM_TIPWMSS
 151        help
 152          PWM driver support for the EHRPWM controller found on AM33XX
 153          TI SOC
 154
 155          To compile this driver as a module, choose M here: the module
 156          will be called pwm-tiehrpwm.
 157
 158config  PWM_TIPWMSS
 159        bool
 160        depends on SOC_AM33XX && (PWM_TIEHRPWM || PWM_TIECAP)
 161        help
 162          PWM Subsystem driver support for AM33xx SOC.
 163
 164          PWM submodules require PWM config space access from submodule
 165          drivers and require common parent driver support.
 166
 167config PWM_TWL
 168        tristate "TWL4030/6030 PWM support"
 169        depends on TWL4030_CORE
 170        help
 171          Generic PWM framework driver for TWL4030/6030.
 172
 173          To compile this driver as a module, choose M here: the module
 174          will be called pwm-twl.
 175
 176config PWM_TWL_LED
 177        tristate "TWL4030/6030 PWM support for LED drivers"
 178        depends on TWL4030_CORE
 179        help
 180          Generic PWM framework driver for TWL4030/6030 LED terminals.
 181
 182          To compile this driver as a module, choose M here: the module
 183          will be called pwm-twl-led.
 184
 185config PWM_VT8500
 186        tristate "vt8500 pwm support"
 187        depends on ARCH_VT8500
 188        help
 189          Generic PWM framework driver for vt8500.
 190
 191          To compile this driver as a module, choose M here: the module
 192          will be called pwm-vt8500.
 193
 194endif
 195
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