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
  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 || COMPILE_TEST
  80         depends on COMMON_CLK
  81         default ARCH_BCM_IPROC
  82         help
  83           Generic PWM framework driver for Broadcom iProc PWM block. This
  84           block is used in Broadcom iProc SoC's.
  85
  86           To compile this driver as a module, choose M here: the module
  87           will be called pwm-bcm-iproc.
  88
  89 config PWM_BCM_KONA
  90         tristate "Kona PWM support"
  91         depends on ARCH_BCM_MOBILE || ARCH_BCM_CYGNUS || COMPILE_TEST
  92         depends on HAVE_CLK && HAS_IOMEM
  93         default ARCH_BCM_MOBILE || ARCH_BCM_CYGNUS
  94         help
  95           Generic PWM framework driver for Broadcom Kona PWM block.
  96
  97           To compile this driver as a module, choose M here: the module
  98           will be called pwm-bcm-kona.
  99
 100 config PWM_BCM2835
 101         tristate "BCM2835 PWM support"
 102         depends on ARCH_BCM2835
 103         help
 104           PWM framework driver for BCM2835 controller (Raspberry Pi)
 105
 106           To compile this driver as a module, choose M here: the module
 107           will be called pwm-bcm2835.
 108
 109 config PWM_BERLIN
 110         tristate "Marvell Berlin PWM support"
 111         depends on ARCH_BERLIN
 112         help
 113           PWM framework driver for Marvell Berlin SoCs.
 114
 115           To compile this driver as a module, choose M here: the module
 116           will be called pwm-berlin.
 117
 118 config PWM_BRCMSTB
 119         tristate "Broadcom STB PWM support"
 120         depends on ARCH_BRCMSTB || BMIPS_GENERIC
 121         help
 122           Generic PWM framework driver for the Broadcom Set-top-Box
 123           SoCs (BCM7xxx).
 124
 125           To compile this driver as a module, choose M Here: the module
 126           will be called pwm-brcmstb.c.
 127
 128 config PWM_CLPS711X
 129         tristate "CLPS711X PWM support"
 130         depends on ARCH_CLPS711X || COMPILE_TEST
 131         depends on HAS_IOMEM
 132         help
 133           Generic PWM framework driver for Cirrus Logic CLPS711X.
 134
 135           To compile this driver as a module, choose M here: the module
 136           will be called pwm-clps711x.
 137
 138 config PWM_CRC
 139         bool "Intel Crystalcove (CRC) PWM support"
 140         depends on X86 && INTEL_SOC_PMIC
 141         help
 142           Generic PWM framework driver for Crystalcove (CRC) PMIC based PWM
 143           control.
 144
 145 config PWM_CROS_EC
 146         tristate "ChromeOS EC PWM driver"
 147         depends on MFD_CROS_EC
 148         help
 149           PWM driver for exposing a PWM attached to the ChromeOS Embedded
 150           Controller.
 151
 152 config PWM_EP93XX
 153         tristate "Cirrus Logic EP93xx PWM support"
 154         depends on ARCH_EP93XX
 155         help
 156           Generic PWM framework driver for Cirrus Logic EP93xx.
 157
 158           To compile this driver as a module, choose M here: the module
 159           will be called pwm-ep93xx.
 160
 161 config PWM_FSL_FTM
 162         tristate "Freescale FlexTimer Module (FTM) PWM support"
 163         depends on HAS_IOMEM
 164         depends on OF
 165         select REGMAP_MMIO
 166         help
 167           Generic FTM PWM framework driver for Freescale VF610 and
 168           Layerscape LS-1 SoCs.
 169
 170           To compile this driver as a module, choose M here: the module
 171           will be called pwm-fsl-ftm.
 172
 173 config PWM_HIBVT
 174         tristate "HiSilicon BVT PWM support"
 175         depends on ARCH_HISI || COMPILE_TEST
 176         help
 177           Generic PWM framework driver for HiSilicon BVT SoCs.
 178
 179           To compile this driver as a module, choose M here: the module
 180           will be called pwm-hibvt.
 181
 182 config PWM_IMG
 183         tristate "Imagination Technologies PWM driver"
 184         depends on HAS_IOMEM
 185         depends on MFD_SYSCON
 186         depends on COMMON_CLK
 187         depends on MIPS || COMPILE_TEST
 188         help
 189           Generic PWM framework driver for Imagination Technologies
 190           PWM block which supports 4 channels.
 191
 192           To compile this driver as a module, choose M here: the module
 193           will be called pwm-img
 194
 195 config PWM_IMX
 196         tristate "i.MX PWM support"
 197         depends on ARCH_MXC
 198         help
 199           Generic PWM framework driver for i.MX.
 200
 201           To compile this driver as a module, choose M here: the module
 202           will be called pwm-imx.
 203
 204 config PWM_JZ4740
 205         tristate "Ingenic JZ47xx PWM support"
 206         depends on MACH_INGENIC
 207         help
 208           Generic PWM framework driver for Ingenic JZ47xx based
 209           machines.
 210
 211           To compile this driver as a module, choose M here: the module
 212           will be called pwm-jz4740.
 213
 214 config PWM_LP3943
 215         tristate "TI/National Semiconductor LP3943 PWM support"
 216         depends on MFD_LP3943
 217         help
 218           Generic PWM framework driver for LP3943 which supports two PWM
 219           channels.
 220
 221           To compile this driver as a module, choose M here: the module
 222           will be called pwm-lp3943.
 223
 224 config PWM_LPC18XX_SCT
 225         tristate "LPC18xx/43xx PWM/SCT support"
 226         depends on ARCH_LPC18XX
 227         help
 228           Generic PWM framework driver for NXP LPC18xx PWM/SCT which
 229           supports 16 channels.
 230           A maximum of 15 channels can be requested simultaneously and
 231           must have the same period.
 232
 233           To compile this driver as a module, choose M here: the module
 234           will be called pwm-lpc18xx-sct.
 235
 236 config PWM_LPC32XX
 237         tristate "LPC32XX PWM support"
 238         depends on ARCH_LPC32XX
 239         help
 240           Generic PWM framework driver for LPC32XX. The LPC32XX SOC has two
 241           PWM controllers.
 242
 243           To compile this driver as a module, choose M here: the module
 244           will be called pwm-lpc32xx.
 245
 246 config PWM_LPSS
 247         tristate
 248
 249 config PWM_LPSS_PCI
 250         tristate "Intel LPSS PWM PCI driver"
 251         depends on X86 && PCI
 252         select PWM_LPSS
 253         help
 254           The PCI driver for Intel Low Power Subsystem PWM controller.
 255
 256           To compile this driver as a module, choose M here: the module
 257           will be called pwm-lpss-pci.
 258
 259 config PWM_LPSS_PLATFORM
 260         tristate "Intel LPSS PWM platform driver"
 261         depends on X86 && ACPI
 262         select PWM_LPSS
 263         help
 264           The platform driver for Intel Low Power Subsystem PWM controller.
 265
 266           To compile this driver as a module, choose M here: the module
 267           will be called pwm-lpss-platform.
 268
 269 config PWM_MESON
 270         tristate "Amlogic Meson PWM driver"
 271         depends on ARCH_MESON
 272         help
 273           The platform driver for Amlogic Meson PWM controller.
 274
 275           To compile this driver as a module, choose M here: the module
 276           will be called pwm-meson.
 277
 278 config PWM_MTK_DISP
 279         tristate "MediaTek display PWM driver"
 280         depends on ARCH_MEDIATEK || COMPILE_TEST
 281         depends on HAS_IOMEM
 282         help
 283           Generic PWM framework driver for MediaTek disp-pwm device.
 284           The PWM is used to control the backlight brightness for display.
 285
 286           To compile this driver as a module, choose M here: the module
 287           will be called pwm-mtk-disp.
 288
 289 config PWM_MEDIATEK
 290         tristate "MediaTek PWM support"
 291         depends on ARCH_MEDIATEK || RALINK || COMPILE_TEST
 292         help
 293           Generic PWM framework driver for Mediatek ARM SoC.
 294
 295           To compile this driver as a module, choose M here: the module
 296           will be called pwm-mediatek.
 297
 298 config PWM_MXS
 299         tristate "Freescale MXS PWM support"
 300         depends on ARCH_MXS && OF
 301         select STMP_DEVICE
 302         help
 303           Generic PWM framework driver for Freescale MXS.
 304
 305           To compile this driver as a module, choose M here: the module
 306           will be called pwm-mxs.
 307
 308 config PWM_OMAP_DMTIMER
 309         tristate "OMAP Dual-Mode Timer PWM support"
 310         depends on OF && ARCH_OMAP && OMAP_DM_TIMER
 311         help
 312           Generic PWM framework driver for OMAP Dual-Mode Timer PWM output
 313
 314           To compile this driver as a module, choose M here: the module
 315           will be called pwm-omap-dmtimer
 316
 317 config PWM_PCA9685
 318         tristate "NXP PCA9685 PWM driver"
 319         depends on I2C
 320         select REGMAP_I2C
 321         help
 322           Generic PWM framework driver for NXP PCA9685 LED controller.
 323
 324           To compile this driver as a module, choose M here: the module
 325           will be called pwm-pca9685.
 326
 327 config PWM_PUV3
 328         tristate "PKUnity NetBook-0916 PWM support"
 329         depends on ARCH_PUV3
 330         help
 331           Generic PWM framework driver for PKUnity NetBook-0916.
 332
 333           To compile this driver as a module, choose M here: the module
 334           will be called pwm-puv3.
 335
 336 config PWM_PXA
 337         tristate "PXA PWM support"
 338         depends on ARCH_PXA
 339         help
 340           Generic PWM framework driver for PXA.
 341
 342           To compile this driver as a module, choose M here: the module
 343           will be called pwm-pxa.
 344
 345 config PWM_RCAR
 346         tristate "Renesas R-Car PWM support"
 347         depends on ARCH_RENESAS || COMPILE_TEST
 348         depends on HAS_IOMEM
 349         help
 350           This driver exposes the PWM Timer controller found in Renesas
 351           R-Car chips through the PWM API.
 352
 353           To compile this driver as a module, choose M here: the module
 354           will be called pwm-rcar.
 355
 356 config PWM_RENESAS_TPU
 357         tristate "Renesas TPU PWM support"
 358         depends on ARCH_RENESAS || COMPILE_TEST
 359         depends on HAS_IOMEM
 360         help
 361           This driver exposes the Timer Pulse Unit (TPU) PWM controller found
 362           in Renesas chips through the PWM API.
 363
 364           To compile this driver as a module, choose M here: the module
 365           will be called pwm-renesas-tpu.
 366
 367 config PWM_ROCKCHIP
 368         tristate "Rockchip PWM support"
 369         depends on ARCH_ROCKCHIP
 370         help
 371           Generic PWM framework driver for the PWM controller found on
 372           Rockchip SoCs.
 373
 374 config PWM_SAMSUNG
 375         tristate "Samsung PWM support"
 376         depends on PLAT_SAMSUNG || ARCH_EXYNOS
 377         help
 378           Generic PWM framework driver for Samsung.
 379
 380           To compile this driver as a module, choose M here: the module
 381           will be called pwm-samsung.
 382
 383 config PWM_SPEAR
 384         tristate "STMicroelectronics SPEAr PWM support"
 385         depends on PLAT_SPEAR
 386         depends on OF
 387         help
 388           Generic PWM framework driver for the PWM controller on ST
 389           SPEAr SoCs.
 390
 391           To compile this driver as a module, choose M here: the module
 392           will be called pwm-spear.
 393
 394 config PWM_STI
 395         tristate "STiH4xx PWM support"
 396         depends on ARCH_STI
 397         depends on OF
 398         help
 399           Generic PWM framework driver for STiH4xx SoCs.
 400
 401           To compile this driver as a module, choose M here: the module
 402           will be called pwm-sti.
 403
 404 config PWM_STM32
 405         tristate "STMicroelectronics STM32 PWM"
 406         depends on MFD_STM32_TIMERS
 407         help
 408           Generic PWM framework driver for STM32 SoCs.
 409
 410           To compile this driver as a module, choose M here: the module
 411           will be called pwm-stm32.
 412
 413 config PWM_STM32_LP
 414         tristate "STMicroelectronics STM32 PWM LP"
 415         depends on MFD_STM32_LPTIMER || COMPILE_TEST
 416         help
 417           Generic PWM framework driver for STMicroelectronics STM32 SoCs
 418           with Low-Power Timer (LPTIM).
 419
 420           To compile this driver as a module, choose M here: the module
 421           will be called pwm-stm32-lp.
 422
 423 config PWM_STMPE
 424         bool "STMPE expander PWM export"
 425         depends on MFD_STMPE
 426         help
 427           This enables support for the PWMs found in the STMPE I/O
 428           expanders.
 429
 430 config PWM_SUN4I
 431         tristate "Allwinner PWM support"
 432         depends on ARCH_SUNXI || COMPILE_TEST
 433         depends on HAS_IOMEM && COMMON_CLK
 434         help
 435           Generic PWM framework driver for Allwinner SoCs.
 436
 437           To compile this driver as a module, choose M here: the module
 438           will be called pwm-sun4i.
 439
 440 config PWM_TEGRA
 441         tristate "NVIDIA Tegra PWM support"
 442         depends on ARCH_TEGRA
 443         help
 444           Generic PWM framework driver for the PWFM controller found on NVIDIA
 445           Tegra SoCs.
 446
 447           To compile this driver as a module, choose M here: the module
 448           will be called pwm-tegra.
 449
 450 config  PWM_TIECAP
 451         tristate "ECAP PWM support"
 452         depends on ARCH_OMAP2PLUS || ARCH_DAVINCI_DA8XX || ARCH_KEYSTONE || ARCH_K3
 453         help
 454           PWM driver support for the ECAP APWM controller found on TI SOCs
 455
 456           To compile this driver as a module, choose M here: the module
 457           will be called pwm-tiecap.
 458
 459 config  PWM_TIEHRPWM
 460         tristate "EHRPWM PWM support"
 461         depends on ARCH_OMAP2PLUS || ARCH_DAVINCI_DA8XX
 462         help
 463           PWM driver support for the EHRPWM controller found on AM33XX
 464           TI SOC
 465
 466           To compile this driver as a module, choose M here: the module
 467           will be called pwm-tiehrpwm.
 468
 469 config  PWM_TIPWMSS
 470         bool
 471         default y if (ARCH_OMAP2PLUS) && (PWM_TIECAP || PWM_TIEHRPWM)
 472         help
 473           PWM Subsystem driver support for AM33xx SOC.
 474
 475           PWM submodules require PWM config space access from submodule
 476           drivers and require common parent driver support.
 477
 478 config PWM_TWL
 479         tristate "TWL4030/6030 PWM support"
 480         depends on TWL4030_CORE
 481         help
 482           Generic PWM framework driver for TWL4030/6030.
 483
 484           To compile this driver as a module, choose M here: the module
 485           will be called pwm-twl.
 486
 487 config PWM_TWL_LED
 488         tristate "TWL4030/6030 PWM support for LED drivers"
 489         depends on TWL4030_CORE
 490         help
 491           Generic PWM framework driver for TWL4030/6030 LED terminals.
 492
 493           To compile this driver as a module, choose M here: the module
 494           will be called pwm-twl-led.
 495
 496 config PWM_VT8500
 497         tristate "vt8500 PWM support"
 498         depends on ARCH_VT8500
 499         help
 500           Generic PWM framework driver for vt8500.
 501
 502           To compile this driver as a module, choose M here: the module
 503           will be called pwm-vt8500.
 504
 505 config PWM_ZX
 506         tristate "ZTE ZX PWM support"
 507         depends on ARCH_ZX
 508         help
 509           Generic PWM framework driver for ZTE ZX family SoCs.
 510
 511           To compile this driver as a module, choose M here: the module
 512           will be called pwm-zx.
 513
 514 endif