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_IMG
 179         tristate "Imagination Technologies PWM driver"
 180         depends on HAS_IOMEM
 181         depends on MFD_SYSCON
 182         depends on COMMON_CLK
 183         depends on MIPS || COMPILE_TEST
 184         help
 185           Generic PWM framework driver for Imagination Technologies
 186           PWM block which supports 4 channels.
 187
 188           To compile this driver as a module, choose M here: the module
 189           will be called pwm-img
 190
 191 config PWM_IMX
 192         tristate "i.MX PWM support"
 193         depends on ARCH_MXC
 194         help
 195           Generic PWM framework driver for i.MX.
 196
 197           To compile this driver as a module, choose M here: the module
 198           will be called pwm-imx.
 199
 200 config PWM_JZ4740
 201         tristate "Ingenic JZ4740 PWM support"
 202         depends on MACH_JZ4740
 203         help
 204           Generic PWM framework driver for Ingenic JZ4740 based
 205           machines.
 206
 207           To compile this driver as a module, choose M here: the module
 208           will be called pwm-jz4740.
 209
 210 config PWM_LP3943
 211         tristate "TI/National Semiconductor LP3943 PWM support"
 212         depends on MFD_LP3943
 213         help
 214           Generic PWM framework driver for LP3943 which supports two PWM
 215           channels.
 216
 217           To compile this driver as a module, choose M here: the module
 218           will be called pwm-lp3943.
 219
 220 config PWM_LPC18XX_SCT
 221         tristate "LPC18xx/43xx PWM/SCT support"
 222         depends on ARCH_LPC18XX
 223         help
 224           Generic PWM framework driver for NXP LPC18xx PWM/SCT which
 225           supports 16 channels.
 226           A maximum of 15 channels can be requested simultaneously and
 227           must have the same period.
 228
 229           To compile this driver as a module, choose M here: the module
 230           will be called pwm-lpc18xx-sct.
 231
 232 config PWM_LPC32XX
 233         tristate "LPC32XX PWM support"
 234         depends on ARCH_LPC32XX
 235         help
 236           Generic PWM framework driver for LPC32XX. The LPC32XX SOC has two
 237           PWM controllers.
 238
 239           To compile this driver as a module, choose M here: the module
 240           will be called pwm-lpc32xx.
 241
 242 config PWM_LPSS
 243         tristate
 244
 245 config PWM_LPSS_PCI
 246         tristate "Intel LPSS PWM PCI driver"
 247         depends on X86 && PCI
 248         select PWM_LPSS
 249         help
 250           The PCI driver for Intel Low Power Subsystem PWM controller.
 251
 252           To compile this driver as a module, choose M here: the module
 253           will be called pwm-lpss-pci.
 254
 255 config PWM_LPSS_PLATFORM
 256         tristate "Intel LPSS PWM platform driver"
 257         depends on X86 && ACPI
 258         select PWM_LPSS
 259         help
 260           The platform driver for Intel Low Power Subsystem PWM controller.
 261
 262           To compile this driver as a module, choose M here: the module
 263           will be called pwm-lpss-platform.
 264
 265 config PWM_MTK_DISP
 266         tristate "MediaTek display PWM driver"
 267         depends on ARCH_MEDIATEK || COMPILE_TEST
 268         depends on HAS_IOMEM
 269         help
 270           Generic PWM framework driver for MediaTek disp-pwm device.
 271           The PWM is used to control the backlight brightness for display.
 272
 273           To compile this driver as a module, choose M here: the module
 274           will be called pwm-mtk-disp.
 275
 276 config PWM_MXS
 277         tristate "Freescale MXS PWM support"
 278         depends on ARCH_MXS && OF
 279         select STMP_DEVICE
 280         help
 281           Generic PWM framework driver for Freescale MXS.
 282
 283           To compile this driver as a module, choose M here: the module
 284           will be called pwm-mxs.
 285
 286 config PWM_OMAP_DMTIMER
 287         tristate "OMAP Dual-Mode Timer PWM support"
 288         depends on OF && ARCH_OMAP && OMAP_DM_TIMER
 289         help
 290           Generic PWM framework driver for OMAP Dual-Mode Timer PWM output
 291
 292           To compile this driver as a module, choose M here: the module
 293           will be called pwm-omap-dmtimer
 294
 295 config PWM_PCA9685
 296         tristate "NXP PCA9685 PWM driver"
 297         depends on I2C
 298         select REGMAP_I2C
 299         help
 300           Generic PWM framework driver for NXP PCA9685 LED controller.
 301
 302           To compile this driver as a module, choose M here: the module
 303           will be called pwm-pca9685.
 304
 305 config PWM_PUV3
 306         tristate "PKUnity NetBook-0916 PWM support"
 307         depends on ARCH_PUV3
 308         help
 309           Generic PWM framework driver for PKUnity NetBook-0916.
 310
 311           To compile this driver as a module, choose M here: the module
 312           will be called pwm-puv3.
 313
 314 config PWM_PXA
 315         tristate "PXA PWM support"
 316         depends on ARCH_PXA
 317         help
 318           Generic PWM framework driver for PXA.
 319
 320           To compile this driver as a module, choose M here: the module
 321           will be called pwm-pxa.
 322
 323 config PWM_RCAR
 324         tristate "Renesas R-Car PWM support"
 325         depends on ARCH_RENESAS || COMPILE_TEST
 326         depends on HAS_IOMEM
 327         help
 328           This driver exposes the PWM Timer controller found in Renesas
 329           R-Car chips through the PWM API.
 330
 331           To compile this driver as a module, choose M here: the module
 332           will be called pwm-rcar.
 333
 334 config PWM_RENESAS_TPU
 335         tristate "Renesas TPU PWM support"
 336         depends on ARCH_RENESAS || COMPILE_TEST
 337         depends on HAS_IOMEM
 338         help
 339           This driver exposes the Timer Pulse Unit (TPU) PWM controller found
 340           in Renesas chips through the PWM API.
 341
 342           To compile this driver as a module, choose M here: the module
 343           will be called pwm-renesas-tpu.
 344
 345 config PWM_ROCKCHIP
 346         tristate "Rockchip PWM support"
 347         depends on ARCH_ROCKCHIP
 348         help
 349           Generic PWM framework driver for the PWM controller found on
 350           Rockchip SoCs.
 351
 352 config PWM_SAMSUNG
 353         tristate "Samsung PWM support"
 354         depends on PLAT_SAMSUNG || ARCH_EXYNOS
 355         help
 356           Generic PWM framework driver for Samsung.
 357
 358           To compile this driver as a module, choose M here: the module
 359           will be called pwm-samsung.
 360
 361 config PWM_SPEAR
 362         tristate "STMicroelectronics SPEAr PWM support"
 363         depends on PLAT_SPEAR
 364         depends on OF
 365         help
 366           Generic PWM framework driver for the PWM controller on ST
 367           SPEAr SoCs.
 368
 369           To compile this driver as a module, choose M here: the module
 370           will be called pwm-spear.
 371
 372 config PWM_STI
 373         tristate "STiH4xx PWM support"
 374         depends on ARCH_STI
 375         depends on OF
 376         help
 377           Generic PWM framework driver for STiH4xx SoCs.
 378
 379           To compile this driver as a module, choose M here: the module
 380           will be called pwm-sti.
 381
 382 config PWM_STMPE
 383         bool "STMPE expander PWM export"
 384         depends on MFD_STMPE
 385         help
 386           This enables support for the PWMs found in the STMPE I/O
 387           expanders.
 388
 389 config PWM_SUN4I
 390         tristate "Allwinner PWM support"
 391         depends on ARCH_SUNXI || COMPILE_TEST
 392         depends on HAS_IOMEM && COMMON_CLK
 393         help
 394           Generic PWM framework driver for Allwinner SoCs.
 395
 396           To compile this driver as a module, choose M here: the module
 397           will be called pwm-sun4i.
 398
 399 config PWM_TEGRA
 400         tristate "NVIDIA Tegra PWM support"
 401         depends on ARCH_TEGRA
 402         help
 403           Generic PWM framework driver for the PWFM controller found on NVIDIA
 404           Tegra SoCs.
 405
 406           To compile this driver as a module, choose M here: the module
 407           will be called pwm-tegra.
 408
 409 config  PWM_TIECAP
 410         tristate "ECAP PWM support"
 411         depends on ARCH_OMAP2PLUS || ARCH_DAVINCI_DA8XX
 412         help
 413           PWM driver support for the ECAP APWM controller found on AM33XX
 414           TI SOC
 415
 416           To compile this driver as a module, choose M here: the module
 417           will be called pwm-tiecap.
 418
 419 config  PWM_TIEHRPWM
 420         tristate "EHRPWM PWM support"
 421         depends on ARCH_OMAP2PLUS || ARCH_DAVINCI_DA8XX
 422         help
 423           PWM driver support for the EHRPWM controller found on AM33XX
 424           TI SOC
 425
 426           To compile this driver as a module, choose M here: the module
 427           will be called pwm-tiehrpwm.
 428
 429 config  PWM_TIPWMSS
 430         bool
 431         default y if (ARCH_OMAP2PLUS) && (PWM_TIECAP || PWM_TIEHRPWM)
 432         help
 433           PWM Subsystem driver support for AM33xx SOC.
 434
 435           PWM submodules require PWM config space access from submodule
 436           drivers and require common parent driver support.
 437
 438 config PWM_TWL
 439         tristate "TWL4030/6030 PWM support"
 440         depends on TWL4030_CORE
 441         help
 442           Generic PWM framework driver for TWL4030/6030.
 443
 444           To compile this driver as a module, choose M here: the module
 445           will be called pwm-twl.
 446
 447 config PWM_TWL_LED
 448         tristate "TWL4030/6030 PWM support for LED drivers"
 449         depends on TWL4030_CORE
 450         help
 451           Generic PWM framework driver for TWL4030/6030 LED terminals.
 452
 453           To compile this driver as a module, choose M here: the module
 454           will be called pwm-twl-led.
 455
 456 config PWM_VT8500
 457         tristate "vt8500 PWM support"
 458         depends on ARCH_VT8500
 459         help
 460           Generic PWM framework driver for vt8500.
 461
 462           To compile this driver as a module, choose M here: the module
 463           will be called pwm-vt8500.
 464
 465 endif