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_KONA
  78         tristate "Kona PWM support"
  79         depends on ARCH_BCM_MOBILE
  80         help
  81           Generic PWM framework driver for Broadcom Kona PWM block.
  82
  83           To compile this driver as a module, choose M here: the module
  84           will be called pwm-bcm-kona.
  85
  86 config PWM_BCM2835
  87         tristate "BCM2835 PWM support"
  88         depends on ARCH_BCM2835
  89         help
  90           PWM framework driver for BCM2835 controller (Raspberry Pi)
  91
  92           To compile this driver as a module, choose M here: the module
  93           will be called pwm-bcm2835.
  94
  95 config PWM_BFIN
  96         tristate "Blackfin PWM support"
  97         depends on BFIN_GPTIMERS
  98         help
  99           Generic PWM framework driver for Blackfin.
 100
 101           To compile this driver as a module, choose M here: the module
 102           will be called pwm-bfin.
 103
 104 config PWM_CLPS711X
 105         tristate "CLPS711X PWM support"
 106         depends on ARCH_CLPS711X || COMPILE_TEST
 107         depends on HAS_IOMEM
 108         help
 109           Generic PWM framework driver for Cirrus Logic CLPS711X.
 110
 111           To compile this driver as a module, choose M here: the module
 112           will be called pwm-clps711x.
 113
 114 config PWM_CRC
 115         bool "Intel Crystalcove (CRC) PWM support"
 116         depends on X86 && INTEL_SOC_PMIC
 117         help
 118           Generic PWM framework driver for Crystalcove (CRC) PMIC based PWM
 119           control.
 120
 121 config PWM_EP93XX
 122         tristate "Cirrus Logic EP93xx PWM support"
 123         depends on ARCH_EP93XX
 124         help
 125           Generic PWM framework driver for Cirrus Logic EP93xx.
 126
 127           To compile this driver as a module, choose M here: the module
 128           will be called pwm-ep93xx.
 129
 130 config PWM_FSL_FTM
 131         tristate "Freescale FlexTimer Module (FTM) PWM support"
 132         depends on OF
 133         select REGMAP_MMIO
 134         help
 135           Generic FTM PWM framework driver for Freescale VF610 and
 136           Layerscape LS-1 SoCs.
 137
 138           To compile this driver as a module, choose M here: the module
 139           will be called pwm-fsl-ftm.
 140
 141 config PWM_IMG
 142         tristate "Imagination Technologies PWM driver"
 143         depends on HAS_IOMEM
 144         depends on MFD_SYSCON
 145         depends on COMMON_CLK
 146         depends on MIPS || COMPILE_TEST
 147         help
 148           Generic PWM framework driver for Imagination Technologies
 149           PWM block which supports 4 channels.
 150
 151           To compile this driver as a module, choose M here: the module
 152           will be called pwm-img
 153
 154 config PWM_IMX
 155         tristate "i.MX PWM support"
 156         depends on ARCH_MXC
 157         help
 158           Generic PWM framework driver for i.MX.
 159
 160           To compile this driver as a module, choose M here: the module
 161           will be called pwm-imx.
 162
 163 config PWM_JZ4740
 164         tristate "Ingenic JZ4740 PWM support"
 165         depends on MACH_JZ4740
 166         help
 167           Generic PWM framework driver for Ingenic JZ4740 based
 168           machines.
 169
 170           To compile this driver as a module, choose M here: the module
 171           will be called pwm-jz4740.
 172
 173 config PWM_LP3943
 174         tristate "TI/National Semiconductor LP3943 PWM support"
 175         depends on MFD_LP3943
 176         help
 177           Generic PWM framework driver for LP3943 which supports two PWM
 178           channels.
 179
 180           To compile this driver as a module, choose M here: the module
 181           will be called pwm-lp3943.
 182
 183 config PWM_LPC18XX_SCT
 184         tristate "LPC18xx/43xx PWM/SCT support"
 185         depends on ARCH_LPC18XX
 186         help
 187           Generic PWM framework driver for NXP LPC18xx PWM/SCT which
 188           supports 16 channels.
 189           A maximum of 15 channels can be requested simultaneously and
 190           must have the same period.
 191
 192           To compile this driver as a module, choose M here: the module
 193           will be called pwm-lpc18xx-sct.
 194
 195 config PWM_LPC32XX
 196         tristate "LPC32XX PWM support"
 197         depends on ARCH_LPC32XX
 198         help
 199           Generic PWM framework driver for LPC32XX. The LPC32XX SOC has two
 200           PWM controllers.
 201
 202           To compile this driver as a module, choose M here: the module
 203           will be called pwm-lpc32xx.
 204
 205 config PWM_LPSS
 206         tristate "Intel LPSS PWM support"
 207         depends on X86
 208         help
 209           Generic PWM framework driver for Intel Low Power Subsystem PWM
 210           controller.
 211
 212           To compile this driver as a module, choose M here: the module
 213           will be called pwm-lpss.
 214
 215 config PWM_LPSS_PCI
 216         tristate "Intel LPSS PWM PCI driver"
 217         depends on PWM_LPSS && PCI
 218         help
 219           The PCI driver for Intel Low Power Subsystem PWM controller.
 220
 221           To compile this driver as a module, choose M here: the module
 222           will be called pwm-lpss-pci.
 223
 224 config PWM_LPSS_PLATFORM
 225         tristate "Intel LPSS PWM platform driver"
 226         depends on PWM_LPSS && ACPI
 227         help
 228           The platform driver for Intel Low Power Subsystem PWM controller.
 229
 230           To compile this driver as a module, choose M here: the module
 231           will be called pwm-lpss-platform.
 232
 233 config PWM_MXS
 234         tristate "Freescale MXS PWM support"
 235         depends on ARCH_MXS && OF
 236         select STMP_DEVICE
 237         help
 238           Generic PWM framework driver for Freescale MXS.
 239
 240           To compile this driver as a module, choose M here: the module
 241           will be called pwm-mxs.
 242
 243 config PWM_PCA9685
 244         tristate "NXP PCA9685 PWM driver"
 245         depends on OF && I2C
 246         select REGMAP_I2C
 247         help
 248           Generic PWM framework driver for NXP PCA9685 LED controller.
 249
 250           To compile this driver as a module, choose M here: the module
 251           will be called pwm-pca9685.
 252
 253 config PWM_PUV3
 254         tristate "PKUnity NetBook-0916 PWM support"
 255         depends on ARCH_PUV3
 256         help
 257           Generic PWM framework driver for PKUnity NetBook-0916.
 258
 259           To compile this driver as a module, choose M here: the module
 260           will be called pwm-puv3.
 261
 262 config PWM_PXA
 263         tristate "PXA PWM support"
 264         depends on ARCH_PXA
 265         help
 266           Generic PWM framework driver for PXA.
 267
 268           To compile this driver as a module, choose M here: the module
 269           will be called pwm-pxa.
 270
 271 config PWM_RENESAS_TPU
 272         tristate "Renesas TPU PWM support"
 273         depends on ARCH_SHMOBILE || COMPILE_TEST
 274         depends on HAS_IOMEM
 275         help
 276           This driver exposes the Timer Pulse Unit (TPU) PWM controller found
 277           in Renesas chips through the PWM API.
 278
 279           To compile this driver as a module, choose M here: the module
 280           will be called pwm-renesas-tpu.
 281
 282 config PWM_ROCKCHIP
 283         tristate "Rockchip PWM support"
 284         depends on ARCH_ROCKCHIP
 285         help
 286           Generic PWM framework driver for the PWM controller found on
 287           Rockchip SoCs.
 288
 289 config PWM_SAMSUNG
 290         tristate "Samsung PWM support"
 291         depends on PLAT_SAMSUNG || ARCH_EXYNOS
 292         help
 293           Generic PWM framework driver for Samsung.
 294
 295           To compile this driver as a module, choose M here: the module
 296           will be called pwm-samsung.
 297
 298 config PWM_SPEAR
 299         tristate "STMicroelectronics SPEAr PWM support"
 300         depends on PLAT_SPEAR
 301         depends on OF
 302         help
 303           Generic PWM framework driver for the PWM controller on ST
 304           SPEAr SoCs.
 305
 306           To compile this driver as a module, choose M here: the module
 307           will be called pwm-spear.
 308
 309 config PWM_STI
 310         tristate "STiH4xx PWM support"
 311         depends on ARCH_STI
 312         depends on OF
 313         help
 314           Generic PWM framework driver for STiH4xx SoCs.
 315
 316           To compile this driver as a module, choose M here: the module
 317           will be called pwm-sti.
 318
 319 config PWM_SUN4I
 320         tristate "Allwinner PWM support"
 321         depends on ARCH_SUNXI || COMPILE_TEST
 322         depends on HAS_IOMEM && COMMON_CLK
 323         help
 324           Generic PWM framework driver for Allwinner SoCs.
 325
 326           To compile this driver as a module, choose M here: the module
 327           will be called pwm-sun4i.
 328
 329 config PWM_TEGRA
 330         tristate "NVIDIA Tegra PWM support"
 331         depends on ARCH_TEGRA
 332         help
 333           Generic PWM framework driver for the PWFM controller found on NVIDIA
 334           Tegra SoCs.
 335
 336           To compile this driver as a module, choose M here: the module
 337           will be called pwm-tegra.
 338
 339 config  PWM_TIECAP
 340         tristate "ECAP PWM support"
 341         depends on SOC_AM33XX || ARCH_DAVINCI_DA8XX
 342         help
 343           PWM driver support for the ECAP APWM controller found on AM33XX
 344           TI SOC
 345
 346           To compile this driver as a module, choose M here: the module
 347           will be called pwm-tiecap.
 348
 349 config  PWM_TIEHRPWM
 350         tristate "EHRPWM PWM support"
 351         depends on SOC_AM33XX || ARCH_DAVINCI_DA8XX
 352         help
 353           PWM driver support for the EHRPWM controller found on AM33XX
 354           TI SOC
 355
 356           To compile this driver as a module, choose M here: the module
 357           will be called pwm-tiehrpwm.
 358
 359 config  PWM_TIPWMSS
 360         bool
 361         default y if SOC_AM33XX && (PWM_TIECAP || PWM_TIEHRPWM)
 362         help
 363           PWM Subsystem driver support for AM33xx SOC.
 364
 365           PWM submodules require PWM config space access from submodule
 366           drivers and require common parent driver support.
 367
 368 config PWM_TWL
 369         tristate "TWL4030/6030 PWM support"
 370         depends on TWL4030_CORE
 371         help
 372           Generic PWM framework driver for TWL4030/6030.
 373
 374           To compile this driver as a module, choose M here: the module
 375           will be called pwm-twl.
 376
 377 config PWM_TWL_LED
 378         tristate "TWL4030/6030 PWM support for LED drivers"
 379         depends on TWL4030_CORE
 380         help
 381           Generic PWM framework driver for TWL4030/6030 LED terminals.
 382
 383           To compile this driver as a module, choose M here: the module
 384           will be called pwm-twl-led.
 385
 386 config PWM_VT8500
 387         tristate "vt8500 PWM support"
 388         depends on ARCH_VT8500
 389         help
 390           Generic PWM framework driver for vt8500.
 391
 392           To compile this driver as a module, choose M here: the module
 393           will be called pwm-vt8500.
 394
 395 endif