linux/drivers/pwm/Kconfig
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   1menuconfig PWM
   2        bool "Pulse-Width Modulation (PWM) Support"
   3        depends on !MACH_JZ4740 && !PUV3_PWM
   4        help
   5          Generic Pulse-Width Modulation (PWM) support.
   6
   7          In Pulse-Width Modulation, a variation of the width of pulses
   8          in a rectangular pulse signal is used as a means to alter the
   9          average power of the signal. Applications include efficient
  10          power delivery and voltage regulation. In computer systems,
  11          PWMs are commonly used to control fans or the brightness of
  12          display backlights.
  13
  14          This framework provides a generic interface to PWM devices
  15          within the Linux kernel. On the driver side it provides an API
  16          to register and unregister a PWM chip, an abstraction of a PWM
  17          controller, that supports one or more PWM devices. Client
  18          drivers can request PWM devices and use the generic framework
  19          to configure as well as enable and disable them.
  20
  21          This generic framework replaces the legacy PWM framework which
  22          allows only a single driver implementing the required API. Not
  23          all legacy implementations have been ported to the framework
  24          yet. The framework provides an API that is backward compatible
  25          with the legacy framework so that existing client drivers
  26          continue to work as expected.
  27
  28          If unsure, say no.
  29
  30if PWM
  31
  32config PWM_BFIN
  33        tristate "Blackfin PWM support"
  34        depends on BFIN_GPTIMERS
  35        help
  36          Generic PWM framework driver for Blackfin.
  37
  38          To compile this driver as a module, choose M here: the module
  39          will be called pwm-bfin.
  40
  41config PWM_IMX
  42        tristate "i.MX pwm support"
  43        depends on ARCH_MXC
  44        help
  45          Generic PWM framework driver for i.MX.
  46
  47          To compile this driver as a module, choose M here: the module
  48          will be called pwm-imx.
  49
  50config PWM_LPC32XX
  51        tristate "LPC32XX PWM support"
  52        depends on ARCH_LPC32XX
  53        help
  54          Generic PWM framework driver for LPC32XX. The LPC32XX SOC has two
  55          PWM controllers.
  56
  57          To compile this driver as a module, choose M here: the module
  58          will be called pwm-lpc32xx.
  59
  60config PWM_MXS
  61        tristate "Freescale MXS PWM support"
  62        depends on ARCH_MXS && OF
  63        select STMP_DEVICE
  64        help
  65          Generic PWM framework driver for Freescale MXS.
  66
  67          To compile this driver as a module, choose M here: the module
  68          will be called pwm-mxs.
  69
  70config PWM_PXA
  71        tristate "PXA PWM support"
  72        depends on ARCH_PXA
  73        help
  74          Generic PWM framework driver for PXA.
  75
  76          To compile this driver as a module, choose M here: the module
  77          will be called pwm-pxa.
  78
  79config PWM_SAMSUNG
  80        tristate "Samsung pwm support"
  81        depends on PLAT_SAMSUNG
  82        help
  83          Generic PWM framework driver for Samsung.
  84
  85          To compile this driver as a module, choose M here: the module
  86          will be called pwm-samsung.
  87
  88config PWM_TEGRA
  89        tristate "NVIDIA Tegra PWM support"
  90        depends on ARCH_TEGRA
  91        help
  92          Generic PWM framework driver for the PWFM controller found on NVIDIA
  93          Tegra SoCs.
  94
  95          To compile this driver as a module, choose M here: the module
  96          will be called pwm-tegra.
  97
  98config  PWM_TIECAP
  99        tristate "ECAP PWM support"
 100        depends on SOC_AM33XX
 101        help
 102          PWM driver support for the ECAP APWM controller found on AM33XX
 103          TI SOC
 104
 105          To compile this driver as a module, choose M here: the module
 106          will be called pwm-tiecap.
 107
 108config  PWM_TIEHRPWM
 109        tristate "EHRPWM PWM support"
 110        depends on SOC_AM33XX
 111        help
 112          PWM driver support for the EHRPWM controller found on AM33XX
 113          TI SOC
 114
 115          To compile this driver as a module, choose M here: the module
 116          will be called pwm-tiehrpwm.
 117
 118config PWM_VT8500
 119        tristate "vt8500 pwm support"
 120        depends on ARCH_VT8500
 121        help
 122          Generic PWM framework driver for vt8500.
 123
 124          To compile this driver as a module, choose M here: the module
 125          will be called pwm-vt8500.
 126
 127endif
 128
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