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 || AVR32
  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_BCM_KONA
  66         tristate "Kona PWM support"
  67         depends on ARCH_BCM_MOBILE
  68         help
  69           Generic PWM framework driver for Broadcom Kona PWM block.
  70
  71           To compile this driver as a module, choose M here: the module
  72           will be called pwm-bcm-kona.
  73
  74 config PWM_BFIN
  75         tristate "Blackfin PWM support"
  76         depends on BFIN_GPTIMERS
  77         help
  78           Generic PWM framework driver for Blackfin.
  79
  80           To compile this driver as a module, choose M here: the module
  81           will be called pwm-bfin.
  82
  83 config PWM_CLPS711X
  84         tristate "CLPS711X PWM support"
  85         depends on ARCH_CLPS711X || COMPILE_TEST
  86         help
  87           Generic PWM framework driver for Cirrus Logic CLPS711X.
  88
  89           To compile this driver as a module, choose M here: the module
  90           will be called pwm-clps711x.
  91
  92 config PWM_EP93XX
  93         tristate "Cirrus Logic EP93xx PWM support"
  94         depends on ARCH_EP93XX
  95         help
  96           Generic PWM framework driver for Cirrus Logic EP93xx.
  97
  98           To compile this driver as a module, choose M here: the module
  99           will be called pwm-ep93xx.
 100
 101 config PWM_FSL_FTM
 102         tristate "Freescale FlexTimer Module (FTM) PWM support"
 103         depends on OF
 104         help
 105           Generic FTM PWM framework driver for Freescale VF610 and
 106           Layerscape LS-1 SoCs.
 107
 108           To compile this driver as a module, choose M here: the module
 109           will be called pwm-fsl-ftm.
 110
 111 config PWM_IMX
 112         tristate "i.MX PWM support"
 113         depends on ARCH_MXC
 114         help
 115           Generic PWM framework driver for i.MX.
 116
 117           To compile this driver as a module, choose M here: the module
 118           will be called pwm-imx.
 119
 120 config PWM_JZ4740
 121         tristate "Ingenic JZ4740 PWM support"
 122         depends on MACH_JZ4740
 123         help
 124           Generic PWM framework driver for Ingenic JZ4740 based
 125           machines.
 126
 127           To compile this driver as a module, choose M here: the module
 128           will be called pwm-jz4740.
 129
 130 config PWM_LP3943
 131         tristate "TI/National Semiconductor LP3943 PWM support"
 132         depends on MFD_LP3943
 133         help
 134           Generic PWM framework driver for LP3943 which supports two PWM
 135           channels.
 136
 137           To compile this driver as a module, choose M here: the module
 138           will be called pwm-lp3943.
 139
 140 config PWM_LPC32XX
 141         tristate "LPC32XX PWM support"
 142         depends on ARCH_LPC32XX
 143         help
 144           Generic PWM framework driver for LPC32XX. The LPC32XX SOC has two
 145           PWM controllers.
 146
 147           To compile this driver as a module, choose M here: the module
 148           will be called pwm-lpc32xx.
 149
 150 config PWM_LPSS
 151         tristate "Intel LPSS PWM support"
 152         depends on ACPI
 153         help
 154           Generic PWM framework driver for Intel Low Power Subsystem PWM
 155           controller.
 156
 157           To compile this driver as a module, choose M here: the module
 158           will be called pwm-lpss.
 159
 160 config PWM_MXS
 161         tristate "Freescale MXS PWM support"
 162         depends on ARCH_MXS && OF
 163         select STMP_DEVICE
 164         help
 165           Generic PWM framework driver for Freescale MXS.
 166
 167           To compile this driver as a module, choose M here: the module
 168           will be called pwm-mxs.
 169
 170 config PWM_PCA9685
 171         tristate "NXP PCA9685 PWM driver"
 172         depends on OF && I2C
 173         select REGMAP_I2C
 174         help
 175           Generic PWM framework driver for NXP PCA9685 LED controller.
 176
 177           To compile this driver as a module, choose M here: the module
 178           will be called pwm-pca9685.
 179
 180 config PWM_PUV3
 181         tristate "PKUnity NetBook-0916 PWM support"
 182         depends on ARCH_PUV3
 183         help
 184           Generic PWM framework driver for PKUnity NetBook-0916.
 185
 186           To compile this driver as a module, choose M here: the module
 187           will be called pwm-puv3.
 188
 189 config PWM_PXA
 190         tristate "PXA PWM support"
 191         depends on ARCH_PXA
 192         help
 193           Generic PWM framework driver for PXA.
 194
 195           To compile this driver as a module, choose M here: the module
 196           will be called pwm-pxa.
 197
 198 config PWM_RENESAS_TPU
 199         tristate "Renesas TPU PWM support"
 200         depends on ARCH_SHMOBILE || COMPILE_TEST
 201         depends on HAS_IOMEM
 202         help
 203           This driver exposes the Timer Pulse Unit (TPU) PWM controller found
 204           in Renesas chips through the PWM API.
 205
 206           To compile this driver as a module, choose M here: the module
 207           will be called pwm-renesas-tpu.
 208
 209 config PWM_ROCKCHIP
 210         tristate "Rockchip PWM support"
 211         depends on ARCH_ROCKCHIP
 212         help
 213           Generic PWM framework driver for the PWM controller found on
 214           Rockchip SoCs.
 215
 216 config PWM_SAMSUNG
 217         tristate "Samsung PWM support"
 218         depends on PLAT_SAMSUNG
 219         help
 220           Generic PWM framework driver for Samsung.
 221
 222           To compile this driver as a module, choose M here: the module
 223           will be called pwm-samsung.
 224
 225 config PWM_SPEAR
 226         tristate "STMicroelectronics SPEAr PWM support"
 227         depends on PLAT_SPEAR
 228         depends on OF
 229         help
 230           Generic PWM framework driver for the PWM controller on ST
 231           SPEAr SoCs.
 232
 233           To compile this driver as a module, choose M here: the module
 234           will be called pwm-spear.
 235
 236 config PWM_STI
 237         tristate "STiH4xx PWM support"
 238         depends on ARCH_STI
 239         depends on OF
 240         help
 241           Generic PWM framework driver for STiH4xx SoCs.
 242
 243           To compile this driver as a module, choose M here: the module
 244           will be called pwm-sti.
 245
 246 config PWM_TEGRA
 247         tristate "NVIDIA Tegra PWM support"
 248         depends on ARCH_TEGRA
 249         help
 250           Generic PWM framework driver for the PWFM controller found on NVIDIA
 251           Tegra SoCs.
 252
 253           To compile this driver as a module, choose M here: the module
 254           will be called pwm-tegra.
 255
 256 config  PWM_TIECAP
 257         tristate "ECAP PWM support"
 258         depends on SOC_AM33XX || ARCH_DAVINCI_DA8XX
 259         help
 260           PWM driver support for the ECAP APWM controller found on AM33XX
 261           TI SOC
 262
 263           To compile this driver as a module, choose M here: the module
 264           will be called pwm-tiecap.
 265
 266 config  PWM_TIEHRPWM
 267         tristate "EHRPWM PWM support"
 268         depends on SOC_AM33XX || ARCH_DAVINCI_DA8XX
 269         help
 270           PWM driver support for the EHRPWM controller found on AM33XX
 271           TI SOC
 272
 273           To compile this driver as a module, choose M here: the module
 274           will be called pwm-tiehrpwm.
 275
 276 config  PWM_TIPWMSS
 277         bool
 278         default y if SOC_AM33XX && (PWM_TIECAP || PWM_TIEHRPWM)
 279         help
 280           PWM Subsystem driver support for AM33xx SOC.
 281
 282           PWM submodules require PWM config space access from submodule
 283           drivers and require common parent driver support.
 284
 285 config PWM_TWL
 286         tristate "TWL4030/6030 PWM support"
 287         depends on TWL4030_CORE
 288         help
 289           Generic PWM framework driver for TWL4030/6030.
 290
 291           To compile this driver as a module, choose M here: the module
 292           will be called pwm-twl.
 293
 294 config PWM_TWL_LED
 295         tristate "TWL4030/6030 PWM support for LED drivers"
 296         depends on TWL4030_CORE
 297         help
 298           Generic PWM framework driver for TWL4030/6030 LED terminals.
 299
 300           To compile this driver as a module, choose M here: the module
 301           will be called pwm-twl-led.
 302
 303 config PWM_VT8500
 304         tristate "vt8500 PWM support"
 305         depends on ARCH_VT8500
 306         help
 307           Generic PWM framework driver for vt8500.
 308
 309           To compile this driver as a module, choose M here: the module
 310           will be called pwm-vt8500.
 311
 312 endif