drivers/pwm/Kconfig

   1 # SPDX-License-Identifier: GPL-2.0-only
   2 menuconfig PWM
   3         bool "Pulse-Width Modulation (PWM) Support"
   4         help
   5           Generic Pulse-Width Modulation (PWM) support.
   6
   7           In Pulse-Width Modulation, a variation of the width of pulses
   8           in a rectangular pulse signal is used as a means to alter the
   9           average power of the signal. Applications include efficient
  10           power delivery and voltage regulation. In computer systems,
  11           PWMs are commonly used to control fans or the brightness of
  12           display backlights.
  13
  14           This framework provides a generic interface to PWM devices
  15           within the Linux kernel. On the driver side it provides an API
  16           to register and unregister a PWM chip, an abstraction of a PWM
  17           controller, that supports one or more PWM devices. Client
  18           drivers can request PWM devices and use the generic framework
  19           to configure as well as enable and disable them.
  20
  21           This generic framework replaces the legacy PWM framework which
  22           allows only a single driver implementing the required API. Not
  23           all legacy implementations have been ported to the framework
  24           yet. The framework provides an API that is backward compatible
  25           with the legacy framework so that existing client drivers
  26           continue to work as expected.
  27
  28           If unsure, say no.
  29
  30 if PWM
  31
  32 config PWM_SYSFS
  33         bool
  34         default y if SYSFS
  35
  36 config PWM_AB8500
  37         tristate "AB8500 PWM support"
  38         depends on AB8500_CORE && ARCH_U8500
  39         help
  40           Generic PWM framework driver for Analog Baseband AB8500.
  41
  42           To compile this driver as a module, choose M here: the module
  43           will be called pwm-ab8500.
  44
  45 config PWM_ATMEL
  46         tristate "Atmel PWM support"
  47         depends on ARCH_AT91 && OF
  48         help
  49           Generic PWM framework driver for Atmel SoC.
  50
  51           To compile this driver as a module, choose M here: the module
  52           will be called pwm-atmel.
  53
  54 config PWM_ATMEL_HLCDC_PWM
  55         tristate "Atmel HLCDC PWM support"
  56         depends on MFD_ATMEL_HLCDC
  57         depends on HAVE_CLK
  58         help
  59           Generic PWM framework driver for the PWM output of the HLCDC
  60           (Atmel High-end LCD Controller). This PWM output is mainly used
  61           to control the LCD backlight.
  62
  63           To compile this driver as a module, choose M here: the module
  64           will be called pwm-atmel-hlcdc.
  65
  66 config PWM_ATMEL_TCB
  67         tristate "Atmel TC Block PWM support"
  68         depends on ATMEL_TCLIB && OF
  69         help
  70           Generic PWM framework driver for Atmel Timer Counter Block.
  71
  72           A Timer Counter Block provides 6 PWM devices grouped by 2.
  73           Devices in a given group must have the same period.
  74
  75           To compile this driver as a module, choose M here: the module
  76           will be called pwm-atmel-tcb.
  77
  78 config PWM_BCM_IPROC
  79         tristate "iProc PWM support"
  80         depends on ARCH_BCM_IPROC || COMPILE_TEST
  81         depends on COMMON_CLK
  82         default ARCH_BCM_IPROC
  83         help
  84           Generic PWM framework driver for Broadcom iProc PWM block. This
  85           block is used in Broadcom iProc SoC's.
  86
  87           To compile this driver as a module, choose M here: the module
  88           will be called pwm-bcm-iproc.
  89
  90 config PWM_BCM_KONA
  91         tristate "Kona PWM support"
  92         depends on ARCH_BCM_MOBILE || ARCH_BCM_CYGNUS || COMPILE_TEST
  93         depends on HAVE_CLK && HAS_IOMEM
  94         default ARCH_BCM_MOBILE || ARCH_BCM_CYGNUS
  95         help
  96           Generic PWM framework driver for Broadcom Kona PWM block.
  97
  98           To compile this driver as a module, choose M here: the module
  99           will be called pwm-bcm-kona.
 100
 101 config PWM_BCM2835
 102         tristate "BCM2835 PWM support"
 103         depends on ARCH_BCM2835 || ARCH_BRCMSTB
 104         help
 105           PWM framework driver for BCM2835 controller (Raspberry Pi)
 106
 107           To compile this driver as a module, choose M here: the module
 108           will be called pwm-bcm2835.
 109
 110 config PWM_BERLIN
 111         tristate "Marvell Berlin PWM support"
 112         depends on ARCH_BERLIN
 113         help
 114           PWM framework driver for Marvell Berlin SoCs.
 115
 116           To compile this driver as a module, choose M here: the module
 117           will be called pwm-berlin.
 118
 119 config PWM_BRCMSTB
 120         tristate "Broadcom STB PWM support"
 121         depends on ARCH_BRCMSTB || BMIPS_GENERIC
 122         help
 123           Generic PWM framework driver for the Broadcom Set-top-Box
 124           SoCs (BCM7xxx).
 125
 126           To compile this driver as a module, choose M Here: the module
 127           will be called pwm-brcmstb.c.
 128
 129 config PWM_CLPS711X
 130         tristate "CLPS711X PWM support"
 131         depends on ARCH_CLPS711X || COMPILE_TEST
 132         depends on HAS_IOMEM
 133         help
 134           Generic PWM framework driver for Cirrus Logic CLPS711X.
 135
 136           To compile this driver as a module, choose M here: the module
 137           will be called pwm-clps711x.
 138
 139 config PWM_CRC
 140         bool "Intel Crystalcove (CRC) PWM support"
 141         depends on X86 && INTEL_SOC_PMIC
 142         help
 143           Generic PWM framework driver for Crystalcove (CRC) PMIC based PWM
 144           control.
 145
 146 config PWM_CROS_EC
 147         tristate "ChromeOS EC PWM driver"
 148         depends on CROS_EC
 149         help
 150           PWM driver for exposing a PWM attached to the ChromeOS Embedded
 151           Controller.
 152
 153 config PWM_EP93XX
 154         tristate "Cirrus Logic EP93xx PWM support"
 155         depends on ARCH_EP93XX
 156         help
 157           Generic PWM framework driver for Cirrus Logic EP93xx.
 158
 159           To compile this driver as a module, choose M here: the module
 160           will be called pwm-ep93xx.
 161
 162 config PWM_FSL_FTM
 163         tristate "Freescale FlexTimer Module (FTM) PWM support"
 164         depends on HAS_IOMEM
 165         depends on OF
 166         select REGMAP_MMIO
 167         help
 168           Generic FTM PWM framework driver for Freescale VF610 and
 169           Layerscape LS-1 SoCs.
 170
 171           To compile this driver as a module, choose M here: the module
 172           will be called pwm-fsl-ftm.
 173
 174 config PWM_HIBVT
 175         tristate "HiSilicon BVT PWM support"
 176         depends on ARCH_HISI || COMPILE_TEST
 177         help
 178           Generic PWM framework driver for HiSilicon BVT SoCs.
 179
 180           To compile this driver as a module, choose M here: the module
 181           will be called pwm-hibvt.
 182
 183 config PWM_IMG
 184         tristate "Imagination Technologies PWM driver"
 185         depends on HAS_IOMEM
 186         depends on MFD_SYSCON
 187         depends on COMMON_CLK
 188         depends on MIPS || COMPILE_TEST
 189         help
 190           Generic PWM framework driver for Imagination Technologies
 191           PWM block which supports 4 channels.
 192
 193           To compile this driver as a module, choose M here: the module
 194           will be called pwm-img
 195
 196 config PWM_IMX1
 197         tristate "i.MX1 PWM support"
 198         depends on ARCH_MXC
 199         help
 200           Generic PWM framework driver for i.MX1 and i.MX21
 201
 202           To compile this driver as a module, choose M here: the module
 203           will be called pwm-imx1.
 204
 205 config PWM_IMX27
 206         tristate "i.MX27 PWM support"
 207         depends on ARCH_MXC
 208         help
 209           Generic PWM framework driver for i.MX27 and later i.MX SoCs.
 210
 211           To compile this driver as a module, choose M here: the module
 212           will be called pwm-imx27.
 213
 214 config PWM_IMX_TPM
 215         tristate "i.MX TPM PWM support"
 216         depends on ARCH_MXC || COMPILE_TEST
 217         depends on HAVE_CLK && HAS_IOMEM
 218         help
 219           Generic PWM framework driver for i.MX7ULP TPM module, TPM's full
 220           name is Low Power Timer/Pulse Width Modulation Module.
 221
 222           To compile this driver as a module, choose M here: the module
 223           will be called pwm-imx-tpm.
 224
 225 config PWM_JZ4740
 226         tristate "Ingenic JZ47xx PWM support"
 227         depends on MACH_INGENIC
 228         help
 229           Generic PWM framework driver for Ingenic JZ47xx based
 230           machines.
 231
 232           To compile this driver as a module, choose M here: the module
 233           will be called pwm-jz4740.
 234
 235 config PWM_LP3943
 236         tristate "TI/National Semiconductor LP3943 PWM support"
 237         depends on MFD_LP3943
 238         help
 239           Generic PWM framework driver for LP3943 which supports two PWM
 240           channels.
 241
 242           To compile this driver as a module, choose M here: the module
 243           will be called pwm-lp3943.
 244
 245 config PWM_LPC18XX_SCT
 246         tristate "LPC18xx/43xx PWM/SCT support"
 247         depends on ARCH_LPC18XX
 248         help
 249           Generic PWM framework driver for NXP LPC18xx PWM/SCT which
 250           supports 16 channels.
 251           A maximum of 15 channels can be requested simultaneously and
 252           must have the same period.
 253
 254           To compile this driver as a module, choose M here: the module
 255           will be called pwm-lpc18xx-sct.
 256
 257 config PWM_LPC32XX
 258         tristate "LPC32XX PWM support"
 259         depends on ARCH_LPC32XX
 260         help
 261           Generic PWM framework driver for LPC32XX. The LPC32XX SOC has two
 262           PWM controllers.
 263
 264           To compile this driver as a module, choose M here: the module
 265           will be called pwm-lpc32xx.
 266
 267 config PWM_LPSS
 268         tristate
 269
 270 config PWM_LPSS_PCI
 271         tristate "Intel LPSS PWM PCI driver"
 272         depends on X86 && PCI
 273         select PWM_LPSS
 274         help
 275           The PCI driver for Intel Low Power Subsystem PWM controller.
 276
 277           To compile this driver as a module, choose M here: the module
 278           will be called pwm-lpss-pci.
 279
 280 config PWM_LPSS_PLATFORM
 281         tristate "Intel LPSS PWM platform driver"
 282         depends on X86 && ACPI
 283         select PWM_LPSS
 284         help
 285           The platform driver for Intel Low Power Subsystem PWM controller.
 286
 287           To compile this driver as a module, choose M here: the module
 288           will be called pwm-lpss-platform.
 289
 290 config PWM_MESON
 291         tristate "Amlogic Meson PWM driver"
 292         depends on ARCH_MESON
 293         help
 294           The platform driver for Amlogic Meson PWM controller.
 295
 296           To compile this driver as a module, choose M here: the module
 297           will be called pwm-meson.
 298
 299 config PWM_MTK_DISP
 300         tristate "MediaTek display PWM driver"
 301         depends on ARCH_MEDIATEK || COMPILE_TEST
 302         depends on HAS_IOMEM
 303         help
 304           Generic PWM framework driver for MediaTek disp-pwm device.
 305           The PWM is used to control the backlight brightness for display.
 306
 307           To compile this driver as a module, choose M here: the module
 308           will be called pwm-mtk-disp.
 309
 310 config PWM_MEDIATEK
 311         tristate "MediaTek PWM support"
 312         depends on ARCH_MEDIATEK || RALINK || COMPILE_TEST
 313         help
 314           Generic PWM framework driver for Mediatek ARM SoC.
 315
 316           To compile this driver as a module, choose M here: the module
 317           will be called pwm-mediatek.
 318
 319 config PWM_MXS
 320         tristate "Freescale MXS PWM support"
 321         depends on ARCH_MXS && OF
 322         select STMP_DEVICE
 323         help
 324           Generic PWM framework driver for Freescale MXS.
 325
 326           To compile this driver as a module, choose M here: the module
 327           will be called pwm-mxs.
 328
 329 config PWM_OMAP_DMTIMER
 330         tristate "OMAP Dual-Mode Timer PWM support"
 331         depends on OF
 332         depends on OMAP_DM_TIMER || COMPILE_TEST
 333         help
 334           Generic PWM framework driver for OMAP Dual-Mode Timer PWM output
 335
 336           To compile this driver as a module, choose M here: the module
 337           will be called pwm-omap-dmtimer
 338
 339 config PWM_PCA9685
 340         tristate "NXP PCA9685 PWM driver"
 341         depends on I2C
 342         select REGMAP_I2C
 343         help
 344           Generic PWM framework driver for NXP PCA9685 LED controller.
 345
 346           To compile this driver as a module, choose M here: the module
 347           will be called pwm-pca9685.
 348
 349 config PWM_PUV3
 350         tristate "PKUnity NetBook-0916 PWM support"
 351         depends on ARCH_PUV3
 352         help
 353           Generic PWM framework driver for PKUnity NetBook-0916.
 354
 355           To compile this driver as a module, choose M here: the module
 356           will be called pwm-puv3.
 357
 358 config PWM_PXA
 359         tristate "PXA PWM support"
 360         depends on ARCH_PXA
 361         help
 362           Generic PWM framework driver for PXA.
 363
 364           To compile this driver as a module, choose M here: the module
 365           will be called pwm-pxa.
 366
 367 config PWM_RCAR
 368         tristate "Renesas R-Car PWM support"
 369         depends on ARCH_RENESAS || COMPILE_TEST
 370         depends on HAS_IOMEM
 371         help
 372           This driver exposes the PWM Timer controller found in Renesas
 373           R-Car chips through the PWM API.
 374
 375           To compile this driver as a module, choose M here: the module
 376           will be called pwm-rcar.
 377
 378 config PWM_RENESAS_TPU
 379         tristate "Renesas TPU PWM support"
 380         depends on ARCH_RENESAS || COMPILE_TEST
 381         depends on HAS_IOMEM
 382         help
 383           This driver exposes the Timer Pulse Unit (TPU) PWM controller found
 384           in Renesas chips through the PWM API.
 385
 386           To compile this driver as a module, choose M here: the module
 387           will be called pwm-renesas-tpu.
 388
 389 config PWM_ROCKCHIP
 390         tristate "Rockchip PWM support"
 391         depends on ARCH_ROCKCHIP
 392         help
 393           Generic PWM framework driver for the PWM controller found on
 394           Rockchip SoCs.
 395
 396 config PWM_SAMSUNG
 397         tristate "Samsung PWM support"
 398         depends on PLAT_SAMSUNG || ARCH_EXYNOS
 399         help
 400           Generic PWM framework driver for Samsung.
 401
 402           To compile this driver as a module, choose M here: the module
 403           will be called pwm-samsung.
 404
 405 config PWM_SIFIVE
 406         tristate "SiFive PWM support"
 407         depends on OF
 408         depends on COMMON_CLK
 409         depends on RISCV || COMPILE_TEST
 410         help
 411           Generic PWM framework driver for SiFive SoCs.
 412
 413           To compile this driver as a module, choose M here: the module
 414           will be called pwm-sifive.
 415
 416 config PWM_SPEAR
 417         tristate "STMicroelectronics SPEAr PWM support"
 418         depends on PLAT_SPEAR
 419         depends on OF
 420         help
 421           Generic PWM framework driver for the PWM controller on ST
 422           SPEAr SoCs.
 423
 424           To compile this driver as a module, choose M here: the module
 425           will be called pwm-spear.
 426
 427 config PWM_SPRD
 428         tristate "Spreadtrum PWM support"
 429         depends on ARCH_SPRD || COMPILE_TEST
 430         depends on HAS_IOMEM
 431         help
 432           Generic PWM framework driver for the PWM controller on
 433           Spreadtrum SoCs.
 434
 435           To compile this driver as a module, choose M here: the module
 436           will be called pwm-sprd.
 437
 438 config PWM_STI
 439         tristate "STiH4xx PWM support"
 440         depends on ARCH_STI
 441         depends on OF
 442         help
 443           Generic PWM framework driver for STiH4xx SoCs.
 444
 445           To compile this driver as a module, choose M here: the module
 446           will be called pwm-sti.
 447
 448 config PWM_STM32
 449         tristate "STMicroelectronics STM32 PWM"
 450         depends on MFD_STM32_TIMERS
 451         help
 452           Generic PWM framework driver for STM32 SoCs.
 453
 454           To compile this driver as a module, choose M here: the module
 455           will be called pwm-stm32.
 456
 457 config PWM_STM32_LP
 458         tristate "STMicroelectronics STM32 PWM LP"
 459         depends on MFD_STM32_LPTIMER || COMPILE_TEST
 460         help
 461           Generic PWM framework driver for STMicroelectronics STM32 SoCs
 462           with Low-Power Timer (LPTIM).
 463
 464           To compile this driver as a module, choose M here: the module
 465           will be called pwm-stm32-lp.
 466
 467 config PWM_STMPE
 468         bool "STMPE expander PWM export"
 469         depends on MFD_STMPE
 470         help
 471           This enables support for the PWMs found in the STMPE I/O
 472           expanders.
 473
 474 config PWM_SUN4I
 475         tristate "Allwinner PWM support"
 476         depends on ARCH_SUNXI || COMPILE_TEST
 477         depends on HAS_IOMEM && COMMON_CLK
 478         help
 479           Generic PWM framework driver for Allwinner SoCs.
 480
 481           To compile this driver as a module, choose M here: the module
 482           will be called pwm-sun4i.
 483
 484 config PWM_TEGRA
 485         tristate "NVIDIA Tegra PWM support"
 486         depends on ARCH_TEGRA
 487         help
 488           Generic PWM framework driver for the PWFM controller found on NVIDIA
 489           Tegra SoCs.
 490
 491           To compile this driver as a module, choose M here: the module
 492           will be called pwm-tegra.
 493
 494 config PWM_TIECAP
 495         tristate "ECAP PWM support"
 496         depends on ARCH_OMAP2PLUS || ARCH_DAVINCI_DA8XX || ARCH_KEYSTONE || ARCH_K3
 497         help
 498           PWM driver support for the ECAP APWM controller found on TI SOCs
 499
 500           To compile this driver as a module, choose M here: the module
 501           will be called pwm-tiecap.
 502
 503 config PWM_TIEHRPWM
 504         tristate "EHRPWM PWM support"
 505         depends on ARCH_OMAP2PLUS || ARCH_DAVINCI_DA8XX || ARCH_K3
 506         help
 507           PWM driver support for the EHRPWM controller found on TI SOCs
 508
 509           To compile this driver as a module, choose M here: the module
 510           will be called pwm-tiehrpwm.
 511
 512 config PWM_TWL
 513         tristate "TWL4030/6030 PWM support"
 514         depends on TWL4030_CORE
 515         help
 516           Generic PWM framework driver for TWL4030/6030.
 517
 518           To compile this driver as a module, choose M here: the module
 519           will be called pwm-twl.
 520
 521 config PWM_TWL_LED
 522         tristate "TWL4030/6030 PWM support for LED drivers"
 523         depends on TWL4030_CORE
 524         help
 525           Generic PWM framework driver for TWL4030/6030 LED terminals.
 526
 527           To compile this driver as a module, choose M here: the module
 528           will be called pwm-twl-led.
 529
 530 config PWM_VT8500
 531         tristate "vt8500 PWM support"
 532         depends on ARCH_VT8500
 533         help
 534           Generic PWM framework driver for vt8500.
 535
 536           To compile this driver as a module, choose M here: the module
 537           will be called pwm-vt8500.
 538
 539 config PWM_ZX
 540         tristate "ZTE ZX PWM support"
 541         depends on ARCH_ZX
 542         help
 543           Generic PWM framework driver for ZTE ZX family SoCs.
 544
 545           To compile this driver as a module, choose M here: the module
 546           will be called pwm-zx.
 547
 548 endif