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_ATMEL_TCB
  41        tristate "Atmel TC Block PWM support"
  42        depends on ATMEL_TCLIB && OF
  43        help
  44          Generic PWM framework driver for Atmel Timer Counter Block.
  45
  46          A Timer Counter Block provides 6 PWM devices grouped by 2.
  47          Devices in a given group must have the same period.
  48
  49          To compile this driver as a module, choose M here: the module
  50          will be called pwm-atmel-tcb.
  51
  52config PWM_BFIN
  53        tristate "Blackfin PWM support"
  54        depends on BFIN_GPTIMERS
  55        help
  56          Generic PWM framework driver for Blackfin.
  57
  58          To compile this driver as a module, choose M here: the module
  59          will be called pwm-bfin.
  60
  61config PWM_IMX
  62        tristate "i.MX PWM support"
  63        depends on ARCH_MXC
  64        help
  65          Generic PWM framework driver for i.MX.
  66
  67          To compile this driver as a module, choose M here: the module
  68          will be called pwm-imx.
  69
  70config PWM_JZ4740
  71        tristate "Ingenic JZ4740 PWM support"
  72        depends on MACH_JZ4740
  73        help
  74          Generic PWM framework driver for Ingenic JZ4740 based
  75          machines.
  76
  77          To compile this driver as a module, choose M here: the module
  78          will be called pwm-jz4740.
  79
  80config PWM_LPC32XX
  81        tristate "LPC32XX PWM support"
  82        depends on ARCH_LPC32XX
  83        help
  84          Generic PWM framework driver for LPC32XX. The LPC32XX SOC has two
  85          PWM controllers.
  86
  87          To compile this driver as a module, choose M here: the module
  88          will be called pwm-lpc32xx.
  89
  90config PWM_MXS
  91        tristate "Freescale MXS PWM support"
  92        depends on ARCH_MXS && OF
  93        select STMP_DEVICE
  94        help
  95          Generic PWM framework driver for Freescale MXS.
  96
  97          To compile this driver as a module, choose M here: the module
  98          will be called pwm-mxs.
  99
 100config PWM_PUV3
 101        tristate "PKUnity NetBook-0916 PWM support"
 102        depends on ARCH_PUV3
 103        help
 104          Generic PWM framework driver for PKUnity NetBook-0916.
 105
 106          To compile this driver as a module, choose M here: the module
 107          will be called pwm-puv3.
 108
 109config PWM_PXA
 110        tristate "PXA PWM support"
 111        depends on ARCH_PXA
 112        help
 113          Generic PWM framework driver for PXA.
 114
 115          To compile this driver as a module, choose M here: the module
 116          will be called pwm-pxa.
 117
 118config PWM_SAMSUNG
 119        tristate "Samsung PWM support"
 120        depends on PLAT_SAMSUNG
 121        help
 122          Generic PWM framework driver for Samsung.
 123
 124          To compile this driver as a module, choose M here: the module
 125          will be called pwm-samsung.
 126
 127config PWM_SPEAR
 128        tristate "STMicroelectronics SPEAr PWM support"
 129        depends on PLAT_SPEAR
 130        depends on OF
 131        help
 132          Generic PWM framework driver for the PWM controller on ST
 133          SPEAr SoCs.
 134
 135          To compile this driver as a module, choose M here: the module
 136          will be called pwm-spear.
 137
 138config PWM_TEGRA
 139        tristate "NVIDIA Tegra PWM support"
 140        depends on ARCH_TEGRA
 141        help
 142          Generic PWM framework driver for the PWFM controller found on NVIDIA
 143          Tegra SoCs.
 144
 145          To compile this driver as a module, choose M here: the module
 146          will be called pwm-tegra.
 147
 148config  PWM_TIECAP
 149        tristate "ECAP PWM support"
 150        depends on SOC_AM33XX
 151        select PWM_TIPWMSS
 152        help
 153          PWM driver support for the ECAP APWM controller found on AM33XX
 154          TI SOC
 155
 156          To compile this driver as a module, choose M here: the module
 157          will be called pwm-tiecap.
 158
 159config  PWM_TIEHRPWM
 160        tristate "EHRPWM PWM support"
 161        depends on SOC_AM33XX
 162        select PWM_TIPWMSS
 163        help
 164          PWM driver support for the EHRPWM controller found on AM33XX
 165          TI SOC
 166
 167          To compile this driver as a module, choose M here: the module
 168          will be called pwm-tiehrpwm.
 169
 170config  PWM_TIPWMSS
 171        bool
 172        depends on SOC_AM33XX && (PWM_TIEHRPWM || PWM_TIECAP)
 173        help
 174          PWM Subsystem driver support for AM33xx SOC.
 175
 176          PWM submodules require PWM config space access from submodule
 177          drivers and require common parent driver support.
 178
 179config PWM_TWL
 180        tristate "TWL4030/6030 PWM support"
 181        depends on TWL4030_CORE
 182        help
 183          Generic PWM framework driver for TWL4030/6030.
 184
 185          To compile this driver as a module, choose M here: the module
 186          will be called pwm-twl.
 187
 188config PWM_TWL_LED
 189        tristate "TWL4030/6030 PWM support for LED drivers"
 190        depends on TWL4030_CORE
 191        help
 192          Generic PWM framework driver for TWL4030/6030 LED terminals.
 193
 194          To compile this driver as a module, choose M here: the module
 195          will be called pwm-twl-led.
 196
 197config PWM_VT8500
 198        tristate "vt8500 PWM support"
 199        depends on ARCH_VT8500
 200        help
 201          Generic PWM framework driver for vt8500.
 202
 203          To compile this driver as a module, choose M here: the module
 204          will be called pwm-vt8500.
 205
 206endif
 207
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