drivers/pwm/Kconfig

   1 menuconfig 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
  29 if PWM
  30
  31 config 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
  40 config 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
  52 config 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
  61 config 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
  70 config 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
  80 config 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
  90 config 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
 100 config 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
 109 config 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
 118 config 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
 127 config 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
 138 config 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
 148 config  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
 159 config  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
 170 config  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
 179 config 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
 188 config 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
 197 config 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
 206 endif