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 || 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
  92         help
  93           Generic PWM framework driver for Broadcom Kona PWM block.
  94
  95           To compile this driver as a module, choose M here: the module
  96           will be called pwm-bcm-kona.
  97
  98 config PWM_BCM2835
  99         tristate "BCM2835 PWM support"
 100         depends on ARCH_BCM2835
 101         help
 102           PWM framework driver for BCM2835 controller (Raspberry Pi)
 103
 104           To compile this driver as a module, choose M here: the module
 105           will be called pwm-bcm2835.
 106
 107 config PWM_BERLIN
 108         tristate "Marvell Berlin PWM support"
 109         depends on ARCH_BERLIN
 110         help
 111           PWM framework driver for Marvell Berlin SoCs.
 112
 113           To compile this driver as a module, choose M here: the module
 114           will be called pwm-berlin.
 115
 116 config PWM_BFIN
 117         tristate "Blackfin PWM support"
 118         depends on BFIN_GPTIMERS
 119         help
 120           Generic PWM framework driver for Blackfin.
 121
 122           To compile this driver as a module, choose M here: the module
 123           will be called pwm-bfin.
 124
 125 config PWM_BRCMSTB
 126         tristate "Broadcom STB PWM support"
 127         depends on ARCH_BRCMSTB || BMIPS_GENERIC
 128         help
 129           Generic PWM framework driver for the Broadcom Set-top-Box
 130           SoCs (BCM7xxx).
 131
 132           To compile this driver as a module, choose M Here: the module
 133           will be called pwm-brcmstb.c.
 134
 135 config PWM_CLPS711X
 136         tristate "CLPS711X PWM support"
 137         depends on ARCH_CLPS711X || COMPILE_TEST
 138         depends on HAS_IOMEM
 139         help
 140           Generic PWM framework driver for Cirrus Logic CLPS711X.
 141
 142           To compile this driver as a module, choose M here: the module
 143           will be called pwm-clps711x.
 144
 145 config PWM_CRC
 146         bool "Intel Crystalcove (CRC) PWM support"
 147         depends on X86 && INTEL_SOC_PMIC
 148         help
 149           Generic PWM framework driver for Crystalcove (CRC) PMIC based PWM
 150           control.
 151
 152 config PWM_CROS_EC
 153         tristate "ChromeOS EC PWM driver"
 154         depends on MFD_CROS_EC
 155         help
 156           PWM driver for exposing a PWM attached to the ChromeOS Embedded
 157           Controller.
 158
 159 config PWM_EP93XX
 160         tristate "Cirrus Logic EP93xx PWM support"
 161         depends on ARCH_EP93XX
 162         help
 163           Generic PWM framework driver for Cirrus Logic EP93xx.
 164
 165           To compile this driver as a module, choose M here: the module
 166           will be called pwm-ep93xx.
 167
 168 config PWM_FSL_FTM
 169         tristate "Freescale FlexTimer Module (FTM) PWM support"
 170         depends on HAS_IOMEM
 171         depends on OF
 172         select REGMAP_MMIO
 173         help
 174           Generic FTM PWM framework driver for Freescale VF610 and
 175           Layerscape LS-1 SoCs.
 176
 177           To compile this driver as a module, choose M here: the module
 178           will be called pwm-fsl-ftm.
 179
 180 config PWM_HIBVT
 181         tristate "HiSilicon BVT PWM support"
 182         depends on ARCH_HISI || COMPILE_TEST
 183         help
 184           Generic PWM framework driver for HiSilicon BVT SoCs.
 185
 186           To compile this driver as a module, choose M here: the module
 187           will be called pwm-hibvt.
 188
 189 config PWM_IMG
 190         tristate "Imagination Technologies PWM driver"
 191         depends on HAS_IOMEM
 192         depends on MFD_SYSCON
 193         depends on COMMON_CLK
 194         depends on MIPS || COMPILE_TEST
 195         help
 196           Generic PWM framework driver for Imagination Technologies
 197           PWM block which supports 4 channels.
 198
 199           To compile this driver as a module, choose M here: the module
 200           will be called pwm-img
 201
 202 config PWM_IMX
 203         tristate "i.MX PWM support"
 204         depends on ARCH_MXC
 205         help
 206           Generic PWM framework driver for i.MX.
 207
 208           To compile this driver as a module, choose M here: the module
 209           will be called pwm-imx.
 210
 211 config PWM_JZ4740
 212         tristate "Ingenic JZ4740 PWM support"
 213         depends on MACH_JZ4740
 214         help
 215           Generic PWM framework driver for Ingenic JZ4740 based
 216           machines.
 217
 218           To compile this driver as a module, choose M here: the module
 219           will be called pwm-jz4740.
 220
 221 config PWM_LP3943
 222         tristate "TI/National Semiconductor LP3943 PWM support"
 223         depends on MFD_LP3943
 224         help
 225           Generic PWM framework driver for LP3943 which supports two PWM
 226           channels.
 227
 228           To compile this driver as a module, choose M here: the module
 229           will be called pwm-lp3943.
 230
 231 config PWM_LPC18XX_SCT
 232         tristate "LPC18xx/43xx PWM/SCT support"
 233         depends on ARCH_LPC18XX
 234         help
 235           Generic PWM framework driver for NXP LPC18xx PWM/SCT which
 236           supports 16 channels.
 237           A maximum of 15 channels can be requested simultaneously and
 238           must have the same period.
 239
 240           To compile this driver as a module, choose M here: the module
 241           will be called pwm-lpc18xx-sct.
 242
 243 config PWM_LPC32XX
 244         tristate "LPC32XX PWM support"
 245         depends on ARCH_LPC32XX
 246         help
 247           Generic PWM framework driver for LPC32XX. The LPC32XX SOC has two
 248           PWM controllers.
 249
 250           To compile this driver as a module, choose M here: the module
 251           will be called pwm-lpc32xx.
 252
 253 config PWM_LPSS
 254         tristate
 255
 256 config PWM_LPSS_PCI
 257         tristate "Intel LPSS PWM PCI driver"
 258         depends on X86 && PCI
 259         select PWM_LPSS
 260         help
 261           The PCI driver for Intel Low Power Subsystem PWM controller.
 262
 263           To compile this driver as a module, choose M here: the module
 264           will be called pwm-lpss-pci.
 265
 266 config PWM_LPSS_PLATFORM
 267         tristate "Intel LPSS PWM platform driver"
 268         depends on X86 && ACPI
 269         select PWM_LPSS
 270         help
 271           The platform driver for Intel Low Power Subsystem PWM controller.
 272
 273           To compile this driver as a module, choose M here: the module
 274           will be called pwm-lpss-platform.
 275
 276 config PWM_MESON
 277         tristate "Amlogic Meson PWM driver"
 278         depends on ARCH_MESON
 279         help
 280           The platform driver for Amlogic Meson PWM controller.
 281
 282           To compile this driver as a module, choose M here: the module
 283           will be called pwm-meson.
 284
 285 config PWM_MTK_DISP
 286         tristate "MediaTek display PWM driver"
 287         depends on ARCH_MEDIATEK || COMPILE_TEST
 288         depends on HAS_IOMEM
 289         help
 290           Generic PWM framework driver for MediaTek disp-pwm device.
 291           The PWM is used to control the backlight brightness for display.
 292
 293           To compile this driver as a module, choose M here: the module
 294           will be called pwm-mtk-disp.
 295
 296 config PWM_MXS
 297         tristate "Freescale MXS PWM support"
 298         depends on ARCH_MXS && OF
 299         select STMP_DEVICE
 300         help
 301           Generic PWM framework driver for Freescale MXS.
 302
 303           To compile this driver as a module, choose M here: the module
 304           will be called pwm-mxs.
 305
 306 config PWM_OMAP_DMTIMER
 307         tristate "OMAP Dual-Mode Timer PWM support"
 308         depends on OF && ARCH_OMAP && OMAP_DM_TIMER
 309         help
 310           Generic PWM framework driver for OMAP Dual-Mode Timer PWM output
 311
 312           To compile this driver as a module, choose M here: the module
 313           will be called pwm-omap-dmtimer
 314
 315 config PWM_PCA9685
 316         tristate "NXP PCA9685 PWM driver"
 317         depends on I2C
 318         select REGMAP_I2C
 319         help
 320           Generic PWM framework driver for NXP PCA9685 LED controller.
 321
 322           To compile this driver as a module, choose M here: the module
 323           will be called pwm-pca9685.
 324
 325 config PWM_PUV3
 326         tristate "PKUnity NetBook-0916 PWM support"
 327         depends on ARCH_PUV3
 328         help
 329           Generic PWM framework driver for PKUnity NetBook-0916.
 330
 331           To compile this driver as a module, choose M here: the module
 332           will be called pwm-puv3.
 333
 334 config PWM_PXA
 335         tristate "PXA PWM support"
 336         depends on ARCH_PXA
 337         help
 338           Generic PWM framework driver for PXA.
 339
 340           To compile this driver as a module, choose M here: the module
 341           will be called pwm-pxa.
 342
 343 config PWM_RCAR
 344         tristate "Renesas R-Car PWM support"
 345         depends on ARCH_RENESAS || COMPILE_TEST
 346         depends on HAS_IOMEM
 347         help
 348           This driver exposes the PWM Timer controller found in Renesas
 349           R-Car chips through the PWM API.
 350
 351           To compile this driver as a module, choose M here: the module
 352           will be called pwm-rcar.
 353
 354 config PWM_RENESAS_TPU
 355         tristate "Renesas TPU PWM support"
 356         depends on ARCH_RENESAS || COMPILE_TEST
 357         depends on HAS_IOMEM
 358         help
 359           This driver exposes the Timer Pulse Unit (TPU) PWM controller found
 360           in Renesas chips through the PWM API.
 361
 362           To compile this driver as a module, choose M here: the module
 363           will be called pwm-renesas-tpu.
 364
 365 config PWM_ROCKCHIP
 366         tristate "Rockchip PWM support"
 367         depends on ARCH_ROCKCHIP
 368         help
 369           Generic PWM framework driver for the PWM controller found on
 370           Rockchip SoCs.
 371
 372 config PWM_SAMSUNG
 373         tristate "Samsung PWM support"
 374         depends on PLAT_SAMSUNG || ARCH_EXYNOS
 375         help
 376           Generic PWM framework driver for Samsung.
 377
 378           To compile this driver as a module, choose M here: the module
 379           will be called pwm-samsung.
 380
 381 config PWM_SPEAR
 382         tristate "STMicroelectronics SPEAr PWM support"
 383         depends on PLAT_SPEAR
 384         depends on OF
 385         help
 386           Generic PWM framework driver for the PWM controller on ST
 387           SPEAr SoCs.
 388
 389           To compile this driver as a module, choose M here: the module
 390           will be called pwm-spear.
 391
 392 config PWM_STI
 393         tristate "STiH4xx PWM support"
 394         depends on ARCH_STI
 395         depends on OF
 396         help
 397           Generic PWM framework driver for STiH4xx SoCs.
 398
 399           To compile this driver as a module, choose M here: the module
 400           will be called pwm-sti.
 401
 402 config PWM_STM32
 403         tristate "STMicroelectronics STM32 PWM"
 404         depends on MFD_STM32_TIMERS || COMPILE_TEST
 405         help
 406           Generic PWM framework driver for STM32 SoCs.
 407
 408           To compile this driver as a module, choose M here: the module
 409           will be called pwm-stm32.
 410
 411 config PWM_STMPE
 412         bool "STMPE expander PWM export"
 413         depends on MFD_STMPE
 414         help
 415           This enables support for the PWMs found in the STMPE I/O
 416           expanders.
 417
 418 config PWM_SUN4I
 419         tristate "Allwinner PWM support"
 420         depends on ARCH_SUNXI || COMPILE_TEST
 421         depends on HAS_IOMEM && COMMON_CLK
 422         help
 423           Generic PWM framework driver for Allwinner SoCs.
 424
 425           To compile this driver as a module, choose M here: the module
 426           will be called pwm-sun4i.
 427
 428 config PWM_TEGRA
 429         tristate "NVIDIA Tegra PWM support"
 430         depends on ARCH_TEGRA
 431         help
 432           Generic PWM framework driver for the PWFM controller found on NVIDIA
 433           Tegra SoCs.
 434
 435           To compile this driver as a module, choose M here: the module
 436           will be called pwm-tegra.
 437
 438 config  PWM_TIECAP
 439         tristate "ECAP PWM support"
 440         depends on ARCH_OMAP2PLUS || ARCH_DAVINCI_DA8XX
 441         help
 442           PWM driver support for the ECAP APWM controller found on AM33XX
 443           TI SOC
 444
 445           To compile this driver as a module, choose M here: the module
 446           will be called pwm-tiecap.
 447
 448 config  PWM_TIEHRPWM
 449         tristate "EHRPWM PWM support"
 450         depends on ARCH_OMAP2PLUS || ARCH_DAVINCI_DA8XX
 451         help
 452           PWM driver support for the EHRPWM controller found on AM33XX
 453           TI SOC
 454
 455           To compile this driver as a module, choose M here: the module
 456           will be called pwm-tiehrpwm.
 457
 458 config  PWM_TIPWMSS
 459         bool
 460         default y if (ARCH_OMAP2PLUS) && (PWM_TIECAP || PWM_TIEHRPWM)
 461         help
 462           PWM Subsystem driver support for AM33xx SOC.
 463
 464           PWM submodules require PWM config space access from submodule
 465           drivers and require common parent driver support.
 466
 467 config PWM_TWL
 468         tristate "TWL4030/6030 PWM support"
 469         depends on TWL4030_CORE
 470         help
 471           Generic PWM framework driver for TWL4030/6030.
 472
 473           To compile this driver as a module, choose M here: the module
 474           will be called pwm-twl.
 475
 476 config PWM_TWL_LED
 477         tristate "TWL4030/6030 PWM support for LED drivers"
 478         depends on TWL4030_CORE
 479         help
 480           Generic PWM framework driver for TWL4030/6030 LED terminals.
 481
 482           To compile this driver as a module, choose M here: the module
 483           will be called pwm-twl-led.
 484
 485 config PWM_VT8500
 486         tristate "vt8500 PWM support"
 487         depends on ARCH_VT8500
 488         help
 489           Generic PWM framework driver for vt8500.
 490
 491           To compile this driver as a module, choose M here: the module
 492           will be called pwm-vt8500.
 493
 494 endif