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_SYSFS
  32         bool
  33         default y if SYSFS
  34
  35 config PWM_AB8500
  36         tristate "AB8500 PWM support"
  37         depends on AB8500_CORE && ARCH_U8500
  38         help
  39           Generic PWM framework driver for Analog Baseband AB8500.
  40
  41           To compile this driver as a module, choose M here: the module
  42           will be called pwm-ab8500.
  43
  44 config PWM_ATMEL
  45         tristate "Atmel PWM support"
  46         depends on ARCH_AT91
  47         help
  48           Generic PWM framework driver for Atmel SoC.
  49
  50           To compile this driver as a module, choose M here: the module
  51           will be called pwm-atmel.
  52
  53 config PWM_ATMEL_TCB
  54         tristate "Atmel TC Block PWM support"
  55         depends on ATMEL_TCLIB && OF
  56         help
  57           Generic PWM framework driver for Atmel Timer Counter Block.
  58
  59           A Timer Counter Block provides 6 PWM devices grouped by 2.
  60           Devices in a given group must have the same period.
  61
  62           To compile this driver as a module, choose M here: the module
  63           will be called pwm-atmel-tcb.
  64
  65 config PWM_BFIN
  66         tristate "Blackfin PWM support"
  67         depends on BFIN_GPTIMERS
  68         help
  69           Generic PWM framework driver for Blackfin.
  70
  71           To compile this driver as a module, choose M here: the module
  72           will be called pwm-bfin.
  73
  74 config PWM_EP93XX
  75         tristate "Cirrus Logic EP93xx PWM support"
  76         depends on ARCH_EP93XX
  77         help
  78           Generic PWM framework driver for Cirrus Logic EP93xx.
  79
  80           To compile this driver as a module, choose M here: the module
  81           will be called pwm-ep93xx.
  82
  83 config PWM_IMX
  84         tristate "i.MX PWM support"
  85         depends on ARCH_MXC
  86         help
  87           Generic PWM framework driver for i.MX.
  88
  89           To compile this driver as a module, choose M here: the module
  90           will be called pwm-imx.
  91
  92 config PWM_JZ4740
  93         tristate "Ingenic JZ4740 PWM support"
  94         depends on MACH_JZ4740
  95         help
  96           Generic PWM framework driver for Ingenic JZ4740 based
  97           machines.
  98
  99           To compile this driver as a module, choose M here: the module
 100           will be called pwm-jz4740.
 101
 102 config PWM_LP3943
 103         tristate "TI/National Semiconductor LP3943 PWM support"
 104         depends on MFD_LP3943
 105         help
 106           Generic PWM framework driver for LP3943 which supports two PWM
 107           channels.
 108
 109           To compile this driver as a module, choose M here: the module
 110           will be called pwm-lp3943.
 111
 112 config PWM_LPC32XX
 113         tristate "LPC32XX PWM support"
 114         depends on ARCH_LPC32XX
 115         help
 116           Generic PWM framework driver for LPC32XX. The LPC32XX SOC has two
 117           PWM controllers.
 118
 119           To compile this driver as a module, choose M here: the module
 120           will be called pwm-lpc32xx.
 121
 122 config PWM_MXS
 123         tristate "Freescale MXS PWM support"
 124         depends on ARCH_MXS && OF
 125         select STMP_DEVICE
 126         help
 127           Generic PWM framework driver for Freescale MXS.
 128
 129           To compile this driver as a module, choose M here: the module
 130           will be called pwm-mxs.
 131
 132 config PWM_PCA9685
 133         tristate "NXP PCA9685 PWM driver"
 134         depends on OF && I2C
 135         select REGMAP_I2C
 136         help
 137           Generic PWM framework driver for NXP PCA9685 LED controller.
 138
 139           To compile this driver as a module, choose M here: the module
 140           will be called pwm-pca9685.
 141
 142 config PWM_PUV3
 143         tristate "PKUnity NetBook-0916 PWM support"
 144         depends on ARCH_PUV3
 145         help
 146           Generic PWM framework driver for PKUnity NetBook-0916.
 147
 148           To compile this driver as a module, choose M here: the module
 149           will be called pwm-puv3.
 150
 151 config PWM_PXA
 152         tristate "PXA PWM support"
 153         depends on ARCH_PXA
 154         help
 155           Generic PWM framework driver for PXA.
 156
 157           To compile this driver as a module, choose M here: the module
 158           will be called pwm-pxa.
 159
 160 config PWM_RENESAS_TPU
 161         tristate "Renesas TPU PWM support"
 162         depends on ARCH_SHMOBILE || COMPILE_TEST
 163         help
 164           This driver exposes the Timer Pulse Unit (TPU) PWM controller found
 165           in Renesas chips through the PWM API.
 166
 167           To compile this driver as a module, choose M here: the module
 168           will be called pwm-renesas-tpu.
 169
 170 config PWM_SAMSUNG
 171         tristate "Samsung PWM support"
 172         depends on PLAT_SAMSUNG
 173         help
 174           Generic PWM framework driver for Samsung.
 175
 176           To compile this driver as a module, choose M here: the module
 177           will be called pwm-samsung.
 178
 179 config PWM_SPEAR
 180         tristate "STMicroelectronics SPEAr PWM support"
 181         depends on PLAT_SPEAR
 182         depends on OF
 183         help
 184           Generic PWM framework driver for the PWM controller on ST
 185           SPEAr SoCs.
 186
 187           To compile this driver as a module, choose M here: the module
 188           will be called pwm-spear.
 189
 190 config PWM_TEGRA
 191         tristate "NVIDIA Tegra PWM support"
 192         depends on ARCH_TEGRA
 193         help
 194           Generic PWM framework driver for the PWFM controller found on NVIDIA
 195           Tegra SoCs.
 196
 197           To compile this driver as a module, choose M here: the module
 198           will be called pwm-tegra.
 199
 200 config  PWM_TIECAP
 201         tristate "ECAP PWM support"
 202         depends on SOC_AM33XX || ARCH_DAVINCI_DA8XX
 203         help
 204           PWM driver support for the ECAP APWM controller found on AM33XX
 205           TI SOC
 206
 207           To compile this driver as a module, choose M here: the module
 208           will be called pwm-tiecap.
 209
 210 config  PWM_TIEHRPWM
 211         tristate "EHRPWM PWM support"
 212         depends on SOC_AM33XX || ARCH_DAVINCI_DA8XX
 213         help
 214           PWM driver support for the EHRPWM controller found on AM33XX
 215           TI SOC
 216
 217           To compile this driver as a module, choose M here: the module
 218           will be called pwm-tiehrpwm.
 219
 220 config  PWM_TIPWMSS
 221         bool
 222         default y if SOC_AM33XX && (PWM_TIECAP || PWM_TIEHRPWM)
 223         help
 224           PWM Subsystem driver support for AM33xx SOC.
 225
 226           PWM submodules require PWM config space access from submodule
 227           drivers and require common parent driver support.
 228
 229 config PWM_TWL
 230         tristate "TWL4030/6030 PWM support"
 231         depends on TWL4030_CORE
 232         help
 233           Generic PWM framework driver for TWL4030/6030.
 234
 235           To compile this driver as a module, choose M here: the module
 236           will be called pwm-twl.
 237
 238 config PWM_TWL_LED
 239         tristate "TWL4030/6030 PWM support for LED drivers"
 240         depends on TWL4030_CORE
 241         help
 242           Generic PWM framework driver for TWL4030/6030 LED terminals.
 243
 244           To compile this driver as a module, choose M here: the module
 245           will be called pwm-twl-led.
 246
 247 config PWM_VT8500
 248         tristate "vt8500 PWM support"
 249         depends on ARCH_VT8500
 250         help
 251           Generic PWM framework driver for vt8500.
 252
 253           To compile this driver as a module, choose M here: the module
 254           will be called pwm-vt8500.
 255
 256 endif