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_IPROC
  78         tristate "iProc PWM support"
  79         depends on ARCH_BCM_IPROC
  80         help
  81           Generic PWM framework driver for Broadcom iProc PWM block. This
  82           block is used in Broadcom iProc SoC's.
  83
  84           To compile this driver as a module, choose M here: the module
  85           will be called pwm-bcm-iproc.
  86
  87 config PWM_BCM_KONA
  88         tristate "Kona PWM support"
  89         depends on ARCH_BCM_MOBILE
  90         help
  91           Generic PWM framework driver for Broadcom Kona PWM block.
  92
  93           To compile this driver as a module, choose M here: the module
  94           will be called pwm-bcm-kona.
  95
  96 config PWM_BCM2835
  97         tristate "BCM2835 PWM support"
  98         depends on ARCH_BCM2835
  99         help
 100           PWM framework driver for BCM2835 controller (Raspberry Pi)
 101
 102           To compile this driver as a module, choose M here: the module
 103           will be called pwm-bcm2835.
 104
 105 config PWM_BERLIN
 106         tristate "Marvell Berlin PWM support"
 107         depends on ARCH_BERLIN
 108         help
 109           PWM framework driver for Marvell Berlin SoCs.
 110
 111           To compile this driver as a module, choose M here: the module
 112           will be called pwm-berlin.
 113
 114 config PWM_BFIN
 115         tristate "Blackfin PWM support"
 116         depends on BFIN_GPTIMERS
 117         help
 118           Generic PWM framework driver for Blackfin.
 119
 120           To compile this driver as a module, choose M here: the module
 121           will be called pwm-bfin.
 122
 123 config PWM_BRCMSTB
 124         tristate "Broadcom STB PWM support"
 125         depends on ARCH_BRCMSTB || BMIPS_GENERIC
 126         help
 127           Generic PWM framework driver for the Broadcom Set-top-Box
 128           SoCs (BCM7xxx).
 129
 130           To compile this driver as a module, choose M Here: the module
 131           will be called pwm-brcmstb.c.
 132
 133 config PWM_CLPS711X
 134         tristate "CLPS711X PWM support"
 135         depends on ARCH_CLPS711X || COMPILE_TEST
 136         depends on HAS_IOMEM
 137         help
 138           Generic PWM framework driver for Cirrus Logic CLPS711X.
 139
 140           To compile this driver as a module, choose M here: the module
 141           will be called pwm-clps711x.
 142
 143 config PWM_CRC
 144         bool "Intel Crystalcove (CRC) PWM support"
 145         depends on X86 && INTEL_SOC_PMIC
 146         help
 147           Generic PWM framework driver for Crystalcove (CRC) PMIC based PWM
 148           control.
 149
 150 config PWM_CROS_EC
 151         tristate "ChromeOS EC PWM driver"
 152         depends on MFD_CROS_EC
 153         help
 154           PWM driver for exposing a PWM attached to the ChromeOS Embedded
 155           Controller.
 156
 157 config PWM_EP93XX
 158         tristate "Cirrus Logic EP93xx PWM support"
 159         depends on ARCH_EP93XX
 160         help
 161           Generic PWM framework driver for Cirrus Logic EP93xx.
 162
 163           To compile this driver as a module, choose M here: the module
 164           will be called pwm-ep93xx.
 165
 166 config PWM_FSL_FTM
 167         tristate "Freescale FlexTimer Module (FTM) PWM support"
 168         depends on HAS_IOMEM
 169         depends on OF
 170         select REGMAP_MMIO
 171         help
 172           Generic FTM PWM framework driver for Freescale VF610 and
 173           Layerscape LS-1 SoCs.
 174
 175           To compile this driver as a module, choose M here: the module
 176           will be called pwm-fsl-ftm.
 177
 178 config PWM_HIBVT
 179         tristate "HiSilicon BVT PWM support"
 180         depends on ARCH_HISI || COMPILE_TEST
 181         help
 182           Generic PWM framework driver for HiSilicon BVT SoCs.
 183
 184           To compile this driver as a module, choose M here: the module
 185           will be called pwm-hibvt.
 186
 187 config PWM_IMG
 188         tristate "Imagination Technologies PWM driver"
 189         depends on HAS_IOMEM
 190         depends on MFD_SYSCON
 191         depends on COMMON_CLK
 192         depends on MIPS || COMPILE_TEST
 193         help
 194           Generic PWM framework driver for Imagination Technologies
 195           PWM block which supports 4 channels.
 196
 197           To compile this driver as a module, choose M here: the module
 198           will be called pwm-img
 199
 200 config PWM_IMX
 201         tristate "i.MX PWM support"
 202         depends on ARCH_MXC
 203         help
 204           Generic PWM framework driver for i.MX.
 205
 206           To compile this driver as a module, choose M here: the module
 207           will be called pwm-imx.
 208
 209 config PWM_JZ4740
 210         tristate "Ingenic JZ4740 PWM support"
 211         depends on MACH_JZ4740
 212         help
 213           Generic PWM framework driver for Ingenic JZ4740 based
 214           machines.
 215
 216           To compile this driver as a module, choose M here: the module
 217           will be called pwm-jz4740.
 218
 219 config PWM_LP3943
 220         tristate "TI/National Semiconductor LP3943 PWM support"
 221         depends on MFD_LP3943
 222         help
 223           Generic PWM framework driver for LP3943 which supports two PWM
 224           channels.
 225
 226           To compile this driver as a module, choose M here: the module
 227           will be called pwm-lp3943.
 228
 229 config PWM_LPC18XX_SCT
 230         tristate "LPC18xx/43xx PWM/SCT support"
 231         depends on ARCH_LPC18XX
 232         help
 233           Generic PWM framework driver for NXP LPC18xx PWM/SCT which
 234           supports 16 channels.
 235           A maximum of 15 channels can be requested simultaneously and
 236           must have the same period.
 237
 238           To compile this driver as a module, choose M here: the module
 239           will be called pwm-lpc18xx-sct.
 240
 241 config PWM_LPC32XX
 242         tristate "LPC32XX PWM support"
 243         depends on ARCH_LPC32XX
 244         help
 245           Generic PWM framework driver for LPC32XX. The LPC32XX SOC has two
 246           PWM controllers.
 247
 248           To compile this driver as a module, choose M here: the module
 249           will be called pwm-lpc32xx.
 250
 251 config PWM_LPSS
 252         tristate
 253
 254 config PWM_LPSS_PCI
 255         tristate "Intel LPSS PWM PCI driver"
 256         depends on X86 && PCI
 257         select PWM_LPSS
 258         help
 259           The PCI driver for Intel Low Power Subsystem PWM controller.
 260
 261           To compile this driver as a module, choose M here: the module
 262           will be called pwm-lpss-pci.
 263
 264 config PWM_LPSS_PLATFORM
 265         tristate "Intel LPSS PWM platform driver"
 266         depends on X86 && ACPI
 267         select PWM_LPSS
 268         help
 269           The platform driver for Intel Low Power Subsystem PWM controller.
 270
 271           To compile this driver as a module, choose M here: the module
 272           will be called pwm-lpss-platform.
 273
 274 config PWM_MESON
 275         tristate "Amlogic Meson PWM driver"
 276         depends on ARCH_MESON
 277         help
 278           The platform driver for Amlogic Meson PWM controller.
 279
 280           To compile this driver as a module, choose M here: the module
 281           will be called pwm-meson.
 282
 283 config PWM_MTK_DISP
 284         tristate "MediaTek display PWM driver"
 285         depends on ARCH_MEDIATEK || COMPILE_TEST
 286         depends on HAS_IOMEM
 287         help
 288           Generic PWM framework driver for MediaTek disp-pwm device.
 289           The PWM is used to control the backlight brightness for display.
 290
 291           To compile this driver as a module, choose M here: the module
 292           will be called pwm-mtk-disp.
 293
 294 config PWM_MXS
 295         tristate "Freescale MXS PWM support"
 296         depends on ARCH_MXS && OF
 297         select STMP_DEVICE
 298         help
 299           Generic PWM framework driver for Freescale MXS.
 300
 301           To compile this driver as a module, choose M here: the module
 302           will be called pwm-mxs.
 303
 304 config PWM_OMAP_DMTIMER
 305         tristate "OMAP Dual-Mode Timer PWM support"
 306         depends on OF && ARCH_OMAP && OMAP_DM_TIMER
 307         help
 308           Generic PWM framework driver for OMAP Dual-Mode Timer PWM output
 309
 310           To compile this driver as a module, choose M here: the module
 311           will be called pwm-omap-dmtimer
 312
 313 config PWM_PCA9685
 314         tristate "NXP PCA9685 PWM driver"
 315         depends on I2C
 316         select REGMAP_I2C
 317         help
 318           Generic PWM framework driver for NXP PCA9685 LED controller.
 319
 320           To compile this driver as a module, choose M here: the module
 321           will be called pwm-pca9685.
 322
 323 config PWM_PUV3
 324         tristate "PKUnity NetBook-0916 PWM support"
 325         depends on ARCH_PUV3
 326         help
 327           Generic PWM framework driver for PKUnity NetBook-0916.
 328
 329           To compile this driver as a module, choose M here: the module
 330           will be called pwm-puv3.
 331
 332 config PWM_PXA
 333         tristate "PXA PWM support"
 334         depends on ARCH_PXA
 335         help
 336           Generic PWM framework driver for PXA.
 337
 338           To compile this driver as a module, choose M here: the module
 339           will be called pwm-pxa.
 340
 341 config PWM_RCAR
 342         tristate "Renesas R-Car PWM support"
 343         depends on ARCH_RENESAS || COMPILE_TEST
 344         depends on HAS_IOMEM
 345         help
 346           This driver exposes the PWM Timer controller found in Renesas
 347           R-Car chips through the PWM API.
 348
 349           To compile this driver as a module, choose M here: the module
 350           will be called pwm-rcar.
 351
 352 config PWM_RENESAS_TPU
 353         tristate "Renesas TPU PWM support"
 354         depends on ARCH_RENESAS || COMPILE_TEST
 355         depends on HAS_IOMEM
 356         help
 357           This driver exposes the Timer Pulse Unit (TPU) PWM controller found
 358           in Renesas chips through the PWM API.
 359
 360           To compile this driver as a module, choose M here: the module
 361           will be called pwm-renesas-tpu.
 362
 363 config PWM_ROCKCHIP
 364         tristate "Rockchip PWM support"
 365         depends on ARCH_ROCKCHIP
 366         help
 367           Generic PWM framework driver for the PWM controller found on
 368           Rockchip SoCs.
 369
 370 config PWM_SAMSUNG
 371         tristate "Samsung PWM support"
 372         depends on PLAT_SAMSUNG || ARCH_EXYNOS
 373         help
 374           Generic PWM framework driver for Samsung.
 375
 376           To compile this driver as a module, choose M here: the module
 377           will be called pwm-samsung.
 378
 379 config PWM_SPEAR
 380         tristate "STMicroelectronics SPEAr PWM support"
 381         depends on PLAT_SPEAR
 382         depends on OF
 383         help
 384           Generic PWM framework driver for the PWM controller on ST
 385           SPEAr SoCs.
 386
 387           To compile this driver as a module, choose M here: the module
 388           will be called pwm-spear.
 389
 390 config PWM_STI
 391         tristate "STiH4xx PWM support"
 392         depends on ARCH_STI
 393         depends on OF
 394         help
 395           Generic PWM framework driver for STiH4xx SoCs.
 396
 397           To compile this driver as a module, choose M here: the module
 398           will be called pwm-sti.
 399
 400 config PWM_STMPE
 401         bool "STMPE expander PWM export"
 402         depends on MFD_STMPE
 403         help
 404           This enables support for the PWMs found in the STMPE I/O
 405           expanders.
 406
 407 config PWM_SUN4I
 408         tristate "Allwinner PWM support"
 409         depends on ARCH_SUNXI || COMPILE_TEST
 410         depends on HAS_IOMEM && COMMON_CLK
 411         help
 412           Generic PWM framework driver for Allwinner SoCs.
 413
 414           To compile this driver as a module, choose M here: the module
 415           will be called pwm-sun4i.
 416
 417 config PWM_TEGRA
 418         tristate "NVIDIA Tegra PWM support"
 419         depends on ARCH_TEGRA
 420         help
 421           Generic PWM framework driver for the PWFM controller found on NVIDIA
 422           Tegra SoCs.
 423
 424           To compile this driver as a module, choose M here: the module
 425           will be called pwm-tegra.
 426
 427 config  PWM_TIECAP
 428         tristate "ECAP PWM support"
 429         depends on ARCH_OMAP2PLUS || ARCH_DAVINCI_DA8XX
 430         help
 431           PWM driver support for the ECAP APWM controller found on AM33XX
 432           TI SOC
 433
 434           To compile this driver as a module, choose M here: the module
 435           will be called pwm-tiecap.
 436
 437 config  PWM_TIEHRPWM
 438         tristate "EHRPWM PWM support"
 439         depends on ARCH_OMAP2PLUS || ARCH_DAVINCI_DA8XX
 440         help
 441           PWM driver support for the EHRPWM controller found on AM33XX
 442           TI SOC
 443
 444           To compile this driver as a module, choose M here: the module
 445           will be called pwm-tiehrpwm.
 446
 447 config  PWM_TIPWMSS
 448         bool
 449         default y if (ARCH_OMAP2PLUS) && (PWM_TIECAP || PWM_TIEHRPWM)
 450         help
 451           PWM Subsystem driver support for AM33xx SOC.
 452
 453           PWM submodules require PWM config space access from submodule
 454           drivers and require common parent driver support.
 455
 456 config PWM_TWL
 457         tristate "TWL4030/6030 PWM support"
 458         depends on TWL4030_CORE
 459         help
 460           Generic PWM framework driver for TWL4030/6030.
 461
 462           To compile this driver as a module, choose M here: the module
 463           will be called pwm-twl.
 464
 465 config PWM_TWL_LED
 466         tristate "TWL4030/6030 PWM support for LED drivers"
 467         depends on TWL4030_CORE
 468         help
 469           Generic PWM framework driver for TWL4030/6030 LED terminals.
 470
 471           To compile this driver as a module, choose M here: the module
 472           will be called pwm-twl-led.
 473
 474 config PWM_VT8500
 475         tristate "vt8500 PWM support"
 476         depends on ARCH_VT8500
 477         help
 478           Generic PWM framework driver for vt8500.
 479
 480           To compile this driver as a module, choose M here: the module
 481           will be called pwm-vt8500.
 482
 483 endif