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_HLCDC_PWM
  54         tristate "Atmel HLCDC PWM support"
  55         depends on MFD_ATMEL_HLCDC
  56         depends on HAVE_CLK
  57         help
  58           Generic PWM framework driver for the PWM output of the HLCDC
  59           (Atmel High-end LCD Controller). This PWM output is mainly used
  60           to control the LCD backlight.
  61
  62           To compile this driver as a module, choose M here: the module
  63           will be called pwm-atmel-hlcdc.
  64
  65 config PWM_ATMEL_TCB
  66         tristate "Atmel TC Block PWM support"
  67         depends on ATMEL_TCLIB && OF
  68         help
  69           Generic PWM framework driver for Atmel Timer Counter Block.
  70
  71           A Timer Counter Block provides 6 PWM devices grouped by 2.
  72           Devices in a given group must have the same period.
  73
  74           To compile this driver as a module, choose M here: the module
  75           will be called pwm-atmel-tcb.
  76
  77 config PWM_BCM_KONA
  78         tristate "Kona PWM support"
  79         depends on ARCH_BCM_MOBILE
  80         help
  81           Generic PWM framework driver for Broadcom Kona PWM block.
  82
  83           To compile this driver as a module, choose M here: the module
  84           will be called pwm-bcm-kona.
  85
  86 config PWM_BCM2835
  87         tristate "BCM2835 PWM support"
  88         depends on ARCH_BCM2835
  89         help
  90           PWM framework driver for BCM2835 controller (Raspberry Pi)
  91
  92           To compile this driver as a module, choose M here: the module
  93           will be called pwm-bcm2835.
  94
  95 config PWM_BERLIN
  96         tristate "Marvell Berlin PWM support"
  97         depends on ARCH_BERLIN
  98         help
  99           PWM framework driver for Marvell Berlin SoCs.
 100
 101           To compile this driver as a module, choose M here: the module
 102           will be called pwm-berlin.
 103
 104 config PWM_BFIN
 105         tristate "Blackfin PWM support"
 106         depends on BFIN_GPTIMERS
 107         help
 108           Generic PWM framework driver for Blackfin.
 109
 110           To compile this driver as a module, choose M here: the module
 111           will be called pwm-bfin.
 112
 113 config PWM_BRCMSTB
 114         tristate "Broadcom STB PWM support"
 115         depends on ARCH_BRCMSTB || BMIPS_GENERIC
 116         help
 117           Generic PWM framework driver for the Broadcom Set-top-Box
 118           SoCs (BCM7xxx).
 119
 120           To compile this driver as a module, choose M Here: the module
 121           will be called pwm-brcmstb.c.
 122
 123 config PWM_CLPS711X
 124         tristate "CLPS711X PWM support"
 125         depends on ARCH_CLPS711X || COMPILE_TEST
 126         depends on HAS_IOMEM
 127         help
 128           Generic PWM framework driver for Cirrus Logic CLPS711X.
 129
 130           To compile this driver as a module, choose M here: the module
 131           will be called pwm-clps711x.
 132
 133 config PWM_CRC
 134         bool "Intel Crystalcove (CRC) PWM support"
 135         depends on X86 && INTEL_SOC_PMIC
 136         help
 137           Generic PWM framework driver for Crystalcove (CRC) PMIC based PWM
 138           control.
 139
 140 config PWM_EP93XX
 141         tristate "Cirrus Logic EP93xx PWM support"
 142         depends on ARCH_EP93XX
 143         help
 144           Generic PWM framework driver for Cirrus Logic EP93xx.
 145
 146           To compile this driver as a module, choose M here: the module
 147           will be called pwm-ep93xx.
 148
 149 config PWM_FSL_FTM
 150         tristate "Freescale FlexTimer Module (FTM) PWM support"
 151         depends on OF
 152         select REGMAP_MMIO
 153         help
 154           Generic FTM PWM framework driver for Freescale VF610 and
 155           Layerscape LS-1 SoCs.
 156
 157           To compile this driver as a module, choose M here: the module
 158           will be called pwm-fsl-ftm.
 159
 160 config PWM_IMG
 161         tristate "Imagination Technologies PWM driver"
 162         depends on HAS_IOMEM
 163         depends on MFD_SYSCON
 164         depends on COMMON_CLK
 165         depends on MIPS || COMPILE_TEST
 166         help
 167           Generic PWM framework driver for Imagination Technologies
 168           PWM block which supports 4 channels.
 169
 170           To compile this driver as a module, choose M here: the module
 171           will be called pwm-img
 172
 173 config PWM_IMX
 174         tristate "i.MX PWM support"
 175         depends on ARCH_MXC
 176         help
 177           Generic PWM framework driver for i.MX.
 178
 179           To compile this driver as a module, choose M here: the module
 180           will be called pwm-imx.
 181
 182 config PWM_JZ4740
 183         tristate "Ingenic JZ4740 PWM support"
 184         depends on MACH_JZ4740
 185         help
 186           Generic PWM framework driver for Ingenic JZ4740 based
 187           machines.
 188
 189           To compile this driver as a module, choose M here: the module
 190           will be called pwm-jz4740.
 191
 192 config PWM_LP3943
 193         tristate "TI/National Semiconductor LP3943 PWM support"
 194         depends on MFD_LP3943
 195         help
 196           Generic PWM framework driver for LP3943 which supports two PWM
 197           channels.
 198
 199           To compile this driver as a module, choose M here: the module
 200           will be called pwm-lp3943.
 201
 202 config PWM_LPC18XX_SCT
 203         tristate "LPC18xx/43xx PWM/SCT support"
 204         depends on ARCH_LPC18XX
 205         help
 206           Generic PWM framework driver for NXP LPC18xx PWM/SCT which
 207           supports 16 channels.
 208           A maximum of 15 channels can be requested simultaneously and
 209           must have the same period.
 210
 211           To compile this driver as a module, choose M here: the module
 212           will be called pwm-lpc18xx-sct.
 213
 214 config PWM_LPC32XX
 215         tristate "LPC32XX PWM support"
 216         depends on ARCH_LPC32XX
 217         help
 218           Generic PWM framework driver for LPC32XX. The LPC32XX SOC has two
 219           PWM controllers.
 220
 221           To compile this driver as a module, choose M here: the module
 222           will be called pwm-lpc32xx.
 223
 224 config PWM_LPSS
 225         tristate
 226
 227 config PWM_LPSS_PCI
 228         tristate "Intel LPSS PWM PCI driver"
 229         depends on X86 && PCI
 230         select PWM_LPSS
 231         help
 232           The PCI driver for Intel Low Power Subsystem PWM controller.
 233
 234           To compile this driver as a module, choose M here: the module
 235           will be called pwm-lpss-pci.
 236
 237 config PWM_LPSS_PLATFORM
 238         tristate "Intel LPSS PWM platform driver"
 239         depends on X86 && ACPI
 240         select PWM_LPSS
 241         help
 242           The platform driver for Intel Low Power Subsystem PWM controller.
 243
 244           To compile this driver as a module, choose M here: the module
 245           will be called pwm-lpss-platform.
 246
 247 config PWM_MTK_DISP
 248         tristate "MediaTek display PWM driver"
 249         depends on ARCH_MEDIATEK || COMPILE_TEST
 250         depends on HAS_IOMEM
 251         help
 252           Generic PWM framework driver for MediaTek disp-pwm device.
 253           The PWM is used to control the backlight brightness for display.
 254
 255           To compile this driver as a module, choose M here: the module
 256           will be called pwm-mtk-disp.
 257
 258 config PWM_MXS
 259         tristate "Freescale MXS PWM support"
 260         depends on ARCH_MXS && OF
 261         select STMP_DEVICE
 262         help
 263           Generic PWM framework driver for Freescale MXS.
 264
 265           To compile this driver as a module, choose M here: the module
 266           will be called pwm-mxs.
 267
 268 config PWM_OMAP_DMTIMER
 269         tristate "OMAP Dual-Mode Timer PWM support"
 270         depends on OF && ARCH_OMAP && OMAP_DM_TIMER
 271         help
 272           Generic PWM framework driver for OMAP Dual-Mode Timer PWM output
 273
 274           To compile this driver as a module, choose M here: the module
 275           will be called pwm-omap-dmtimer
 276
 277 config PWM_PCA9685
 278         tristate "NXP PCA9685 PWM driver"
 279         depends on I2C
 280         select REGMAP_I2C
 281         help
 282           Generic PWM framework driver for NXP PCA9685 LED controller.
 283
 284           To compile this driver as a module, choose M here: the module
 285           will be called pwm-pca9685.
 286
 287 config PWM_PUV3
 288         tristate "PKUnity NetBook-0916 PWM support"
 289         depends on ARCH_PUV3
 290         help
 291           Generic PWM framework driver for PKUnity NetBook-0916.
 292
 293           To compile this driver as a module, choose M here: the module
 294           will be called pwm-puv3.
 295
 296 config PWM_PXA
 297         tristate "PXA PWM support"
 298         depends on ARCH_PXA
 299         help
 300           Generic PWM framework driver for PXA.
 301
 302           To compile this driver as a module, choose M here: the module
 303           will be called pwm-pxa.
 304
 305 config PWM_RCAR
 306         tristate "Renesas R-Car PWM support"
 307         depends on ARCH_RCAR_GEN1 || ARCH_RCAR_GEN2 || COMPILE_TEST
 308         depends on HAS_IOMEM
 309         help
 310           This driver exposes the PWM Timer controller found in Renesas
 311           R-Car chips through the PWM API.
 312
 313           To compile this driver as a module, choose M here: the module
 314           will be called pwm-rcar.
 315
 316 config PWM_RENESAS_TPU
 317         tristate "Renesas TPU PWM support"
 318         depends on ARCH_SHMOBILE || COMPILE_TEST
 319         depends on HAS_IOMEM
 320         help
 321           This driver exposes the Timer Pulse Unit (TPU) PWM controller found
 322           in Renesas chips through the PWM API.
 323
 324           To compile this driver as a module, choose M here: the module
 325           will be called pwm-renesas-tpu.
 326
 327 config PWM_ROCKCHIP
 328         tristate "Rockchip PWM support"
 329         depends on ARCH_ROCKCHIP
 330         help
 331           Generic PWM framework driver for the PWM controller found on
 332           Rockchip SoCs.
 333
 334 config PWM_SAMSUNG
 335         tristate "Samsung PWM support"
 336         depends on PLAT_SAMSUNG || ARCH_EXYNOS
 337         help
 338           Generic PWM framework driver for Samsung.
 339
 340           To compile this driver as a module, choose M here: the module
 341           will be called pwm-samsung.
 342
 343 config PWM_SPEAR
 344         tristate "STMicroelectronics SPEAr PWM support"
 345         depends on PLAT_SPEAR
 346         depends on OF
 347         help
 348           Generic PWM framework driver for the PWM controller on ST
 349           SPEAr SoCs.
 350
 351           To compile this driver as a module, choose M here: the module
 352           will be called pwm-spear.
 353
 354 config PWM_STI
 355         tristate "STiH4xx PWM support"
 356         depends on ARCH_STI
 357         depends on OF
 358         help
 359           Generic PWM framework driver for STiH4xx SoCs.
 360
 361           To compile this driver as a module, choose M here: the module
 362           will be called pwm-sti.
 363
 364 config PWM_SUN4I
 365         tristate "Allwinner PWM support"
 366         depends on ARCH_SUNXI || COMPILE_TEST
 367         depends on HAS_IOMEM && COMMON_CLK
 368         help
 369           Generic PWM framework driver for Allwinner SoCs.
 370
 371           To compile this driver as a module, choose M here: the module
 372           will be called pwm-sun4i.
 373
 374 config PWM_TEGRA
 375         tristate "NVIDIA Tegra PWM support"
 376         depends on ARCH_TEGRA
 377         help
 378           Generic PWM framework driver for the PWFM controller found on NVIDIA
 379           Tegra SoCs.
 380
 381           To compile this driver as a module, choose M here: the module
 382           will be called pwm-tegra.
 383
 384 config  PWM_TIECAP
 385         tristate "ECAP PWM support"
 386         depends on ARCH_OMAP2PLUS || ARCH_DAVINCI_DA8XX
 387         help
 388           PWM driver support for the ECAP APWM controller found on AM33XX
 389           TI SOC
 390
 391           To compile this driver as a module, choose M here: the module
 392           will be called pwm-tiecap.
 393
 394 config  PWM_TIEHRPWM
 395         tristate "EHRPWM PWM support"
 396         depends on ARCH_OMAP2PLUS || ARCH_DAVINCI_DA8XX
 397         help
 398           PWM driver support for the EHRPWM controller found on AM33XX
 399           TI SOC
 400
 401           To compile this driver as a module, choose M here: the module
 402           will be called pwm-tiehrpwm.
 403
 404 config  PWM_TIPWMSS
 405         bool
 406         default y if (ARCH_OMAP2PLUS) && (PWM_TIECAP || PWM_TIEHRPWM)
 407         help
 408           PWM Subsystem driver support for AM33xx SOC.
 409
 410           PWM submodules require PWM config space access from submodule
 411           drivers and require common parent driver support.
 412
 413 config PWM_TWL
 414         tristate "TWL4030/6030 PWM support"
 415         depends on TWL4030_CORE
 416         help
 417           Generic PWM framework driver for TWL4030/6030.
 418
 419           To compile this driver as a module, choose M here: the module
 420           will be called pwm-twl.
 421
 422 config PWM_TWL_LED
 423         tristate "TWL4030/6030 PWM support for LED drivers"
 424         depends on TWL4030_CORE
 425         help
 426           Generic PWM framework driver for TWL4030/6030 LED terminals.
 427
 428           To compile this driver as a module, choose M here: the module
 429           will be called pwm-twl-led.
 430
 431 config PWM_VT8500
 432         tristate "vt8500 PWM support"
 433         depends on ARCH_VT8500
 434         help
 435           Generic PWM framework driver for vt8500.
 436
 437           To compile this driver as a module, choose M here: the module
 438           will be called pwm-vt8500.
 439
 440 endif