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         depends on HAS_IOMEM
  87         help
  88           Generic PWM framework driver for Cirrus Logic CLPS711X.
  89
  90           To compile this driver as a module, choose M here: the module
  91           will be called pwm-clps711x.
  92
  93 config PWM_EP93XX
  94         tristate "Cirrus Logic EP93xx PWM support"
  95         depends on ARCH_EP93XX
  96         help
  97           Generic PWM framework driver for Cirrus Logic EP93xx.
  98
  99           To compile this driver as a module, choose M here: the module
 100           will be called pwm-ep93xx.
 101
 102 config PWM_FSL_FTM
 103         tristate "Freescale FlexTimer Module (FTM) PWM support"
 104         depends on OF
 105         select REGMAP_MMIO
 106         help
 107           Generic FTM PWM framework driver for Freescale VF610 and
 108           Layerscape LS-1 SoCs.
 109
 110           To compile this driver as a module, choose M here: the module
 111           will be called pwm-fsl-ftm.
 112
 113 config PWM_IMX
 114         tristate "i.MX PWM support"
 115         depends on ARCH_MXC
 116         help
 117           Generic PWM framework driver for i.MX.
 118
 119           To compile this driver as a module, choose M here: the module
 120           will be called pwm-imx.
 121
 122 config PWM_JZ4740
 123         tristate "Ingenic JZ4740 PWM support"
 124         depends on MACH_JZ4740
 125         help
 126           Generic PWM framework driver for Ingenic JZ4740 based
 127           machines.
 128
 129           To compile this driver as a module, choose M here: the module
 130           will be called pwm-jz4740.
 131
 132 config PWM_LP3943
 133         tristate "TI/National Semiconductor LP3943 PWM support"
 134         depends on MFD_LP3943
 135         help
 136           Generic PWM framework driver for LP3943 which supports two PWM
 137           channels.
 138
 139           To compile this driver as a module, choose M here: the module
 140           will be called pwm-lp3943.
 141
 142 config PWM_LPC32XX
 143         tristate "LPC32XX PWM support"
 144         depends on ARCH_LPC32XX
 145         help
 146           Generic PWM framework driver for LPC32XX. The LPC32XX SOC has two
 147           PWM controllers.
 148
 149           To compile this driver as a module, choose M here: the module
 150           will be called pwm-lpc32xx.
 151
 152 config PWM_LPSS
 153         tristate "Intel LPSS PWM support"
 154         depends on X86
 155         help
 156           Generic PWM framework driver for Intel Low Power Subsystem PWM
 157           controller.
 158
 159           To compile this driver as a module, choose M here: the module
 160           will be called pwm-lpss.
 161
 162 config PWM_LPSS_PCI
 163         tristate "Intel LPSS PWM PCI driver"
 164         depends on PWM_LPSS && PCI
 165         help
 166           The PCI driver for Intel Low Power Subsystem PWM controller.
 167
 168           To compile this driver as a module, choose M here: the module
 169           will be called pwm-lpss-pci.
 170
 171 config PWM_LPSS_PLATFORM
 172         tristate "Intel LPSS PWM platform driver"
 173         depends on PWM_LPSS && ACPI
 174         help
 175           The platform driver for Intel Low Power Subsystem PWM controller.
 176
 177           To compile this driver as a module, choose M here: the module
 178           will be called pwm-lpss-platform.
 179
 180 config PWM_MXS
 181         tristate "Freescale MXS PWM support"
 182         depends on ARCH_MXS && OF
 183         select STMP_DEVICE
 184         help
 185           Generic PWM framework driver for Freescale MXS.
 186
 187           To compile this driver as a module, choose M here: the module
 188           will be called pwm-mxs.
 189
 190 config PWM_PCA9685
 191         tristate "NXP PCA9685 PWM driver"
 192         depends on OF && I2C
 193         select REGMAP_I2C
 194         help
 195           Generic PWM framework driver for NXP PCA9685 LED controller.
 196
 197           To compile this driver as a module, choose M here: the module
 198           will be called pwm-pca9685.
 199
 200 config PWM_PUV3
 201         tristate "PKUnity NetBook-0916 PWM support"
 202         depends on ARCH_PUV3
 203         help
 204           Generic PWM framework driver for PKUnity NetBook-0916.
 205
 206           To compile this driver as a module, choose M here: the module
 207           will be called pwm-puv3.
 208
 209 config PWM_PXA
 210         tristate "PXA PWM support"
 211         depends on ARCH_PXA
 212         help
 213           Generic PWM framework driver for PXA.
 214
 215           To compile this driver as a module, choose M here: the module
 216           will be called pwm-pxa.
 217
 218 config PWM_RENESAS_TPU
 219         tristate "Renesas TPU PWM support"
 220         depends on ARCH_SHMOBILE || COMPILE_TEST
 221         depends on HAS_IOMEM
 222         help
 223           This driver exposes the Timer Pulse Unit (TPU) PWM controller found
 224           in Renesas chips through the PWM API.
 225
 226           To compile this driver as a module, choose M here: the module
 227           will be called pwm-renesas-tpu.
 228
 229 config PWM_ROCKCHIP
 230         tristate "Rockchip PWM support"
 231         depends on ARCH_ROCKCHIP
 232         help
 233           Generic PWM framework driver for the PWM controller found on
 234           Rockchip SoCs.
 235
 236 config PWM_SAMSUNG
 237         tristate "Samsung PWM support"
 238         depends on PLAT_SAMSUNG
 239         help
 240           Generic PWM framework driver for Samsung.
 241
 242           To compile this driver as a module, choose M here: the module
 243           will be called pwm-samsung.
 244
 245 config PWM_SPEAR
 246         tristate "STMicroelectronics SPEAr PWM support"
 247         depends on PLAT_SPEAR
 248         depends on OF
 249         help
 250           Generic PWM framework driver for the PWM controller on ST
 251           SPEAr SoCs.
 252
 253           To compile this driver as a module, choose M here: the module
 254           will be called pwm-spear.
 255
 256 config PWM_STI
 257         tristate "STiH4xx PWM support"
 258         depends on ARCH_STI
 259         depends on OF
 260         help
 261           Generic PWM framework driver for STiH4xx SoCs.
 262
 263           To compile this driver as a module, choose M here: the module
 264           will be called pwm-sti.
 265
 266 config PWM_TEGRA
 267         tristate "NVIDIA Tegra PWM support"
 268         depends on ARCH_TEGRA
 269         help
 270           Generic PWM framework driver for the PWFM controller found on NVIDIA
 271           Tegra SoCs.
 272
 273           To compile this driver as a module, choose M here: the module
 274           will be called pwm-tegra.
 275
 276 config  PWM_TIECAP
 277         tristate "ECAP PWM support"
 278         depends on SOC_AM33XX || ARCH_DAVINCI_DA8XX
 279         help
 280           PWM driver support for the ECAP APWM controller found on AM33XX
 281           TI SOC
 282
 283           To compile this driver as a module, choose M here: the module
 284           will be called pwm-tiecap.
 285
 286 config  PWM_TIEHRPWM
 287         tristate "EHRPWM PWM support"
 288         depends on SOC_AM33XX || ARCH_DAVINCI_DA8XX
 289         help
 290           PWM driver support for the EHRPWM controller found on AM33XX
 291           TI SOC
 292
 293           To compile this driver as a module, choose M here: the module
 294           will be called pwm-tiehrpwm.
 295
 296 config  PWM_TIPWMSS
 297         bool
 298         default y if SOC_AM33XX && (PWM_TIECAP || PWM_TIEHRPWM)
 299         help
 300           PWM Subsystem driver support for AM33xx SOC.
 301
 302           PWM submodules require PWM config space access from submodule
 303           drivers and require common parent driver support.
 304
 305 config PWM_TWL
 306         tristate "TWL4030/6030 PWM support"
 307         depends on TWL4030_CORE
 308         help
 309           Generic PWM framework driver for TWL4030/6030.
 310
 311           To compile this driver as a module, choose M here: the module
 312           will be called pwm-twl.
 313
 314 config PWM_TWL_LED
 315         tristate "TWL4030/6030 PWM support for LED drivers"
 316         depends on TWL4030_CORE
 317         help
 318           Generic PWM framework driver for TWL4030/6030 LED terminals.
 319
 320           To compile this driver as a module, choose M here: the module
 321           will be called pwm-twl-led.
 322
 323 config PWM_VT8500
 324         tristate "vt8500 PWM support"
 325         depends on ARCH_VT8500
 326         help
 327           Generic PWM framework driver for vt8500.
 328
 329           To compile this driver as a module, choose M here: the module
 330           will be called pwm-vt8500.
 331
 332 endif