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_LPC32XX
 184         tristate "LPC32XX PWM support"
 185         depends on ARCH_LPC32XX
 186         help
 187           Generic PWM framework driver for LPC32XX. The LPC32XX SOC has two
 188           PWM controllers.
 189
 190           To compile this driver as a module, choose M here: the module
 191           will be called pwm-lpc32xx.
 192
 193 config PWM_LPSS
 194         tristate "Intel LPSS PWM support"
 195         depends on X86
 196         help
 197           Generic PWM framework driver for Intel Low Power Subsystem PWM
 198           controller.
 199
 200           To compile this driver as a module, choose M here: the module
 201           will be called pwm-lpss.
 202
 203 config PWM_LPSS_PCI
 204         tristate "Intel LPSS PWM PCI driver"
 205         depends on PWM_LPSS && PCI
 206         help
 207           The PCI driver for Intel Low Power Subsystem PWM controller.
 208
 209           To compile this driver as a module, choose M here: the module
 210           will be called pwm-lpss-pci.
 211
 212 config PWM_LPSS_PLATFORM
 213         tristate "Intel LPSS PWM platform driver"
 214         depends on PWM_LPSS && ACPI
 215         help
 216           The platform driver for Intel Low Power Subsystem PWM controller.
 217
 218           To compile this driver as a module, choose M here: the module
 219           will be called pwm-lpss-platform.
 220
 221 config PWM_MXS
 222         tristate "Freescale MXS PWM support"
 223         depends on ARCH_MXS && OF
 224         select STMP_DEVICE
 225         help
 226           Generic PWM framework driver for Freescale MXS.
 227
 228           To compile this driver as a module, choose M here: the module
 229           will be called pwm-mxs.
 230
 231 config PWM_PCA9685
 232         tristate "NXP PCA9685 PWM driver"
 233         depends on OF && I2C
 234         select REGMAP_I2C
 235         help
 236           Generic PWM framework driver for NXP PCA9685 LED controller.
 237
 238           To compile this driver as a module, choose M here: the module
 239           will be called pwm-pca9685.
 240
 241 config PWM_PUV3
 242         tristate "PKUnity NetBook-0916 PWM support"
 243         depends on ARCH_PUV3
 244         help
 245           Generic PWM framework driver for PKUnity NetBook-0916.
 246
 247           To compile this driver as a module, choose M here: the module
 248           will be called pwm-puv3.
 249
 250 config PWM_PXA
 251         tristate "PXA PWM support"
 252         depends on ARCH_PXA
 253         help
 254           Generic PWM framework driver for PXA.
 255
 256           To compile this driver as a module, choose M here: the module
 257           will be called pwm-pxa.
 258
 259 config PWM_RENESAS_TPU
 260         tristate "Renesas TPU PWM support"
 261         depends on ARCH_SHMOBILE || COMPILE_TEST
 262         depends on HAS_IOMEM
 263         help
 264           This driver exposes the Timer Pulse Unit (TPU) PWM controller found
 265           in Renesas chips through the PWM API.
 266
 267           To compile this driver as a module, choose M here: the module
 268           will be called pwm-renesas-tpu.
 269
 270 config PWM_ROCKCHIP
 271         tristate "Rockchip PWM support"
 272         depends on ARCH_ROCKCHIP
 273         help
 274           Generic PWM framework driver for the PWM controller found on
 275           Rockchip SoCs.
 276
 277 config PWM_SAMSUNG
 278         tristate "Samsung PWM support"
 279         depends on PLAT_SAMSUNG || ARCH_EXYNOS
 280         help
 281           Generic PWM framework driver for Samsung.
 282
 283           To compile this driver as a module, choose M here: the module
 284           will be called pwm-samsung.
 285
 286 config PWM_SPEAR
 287         tristate "STMicroelectronics SPEAr PWM support"
 288         depends on PLAT_SPEAR
 289         depends on OF
 290         help
 291           Generic PWM framework driver for the PWM controller on ST
 292           SPEAr SoCs.
 293
 294           To compile this driver as a module, choose M here: the module
 295           will be called pwm-spear.
 296
 297 config PWM_STI
 298         tristate "STiH4xx PWM support"
 299         depends on ARCH_STI
 300         depends on OF
 301         help
 302           Generic PWM framework driver for STiH4xx SoCs.
 303
 304           To compile this driver as a module, choose M here: the module
 305           will be called pwm-sti.
 306
 307 config PWM_SUN4I
 308         tristate "Allwinner PWM support"
 309         depends on ARCH_SUNXI || COMPILE_TEST
 310         depends on HAS_IOMEM && COMMON_CLK
 311         help
 312           Generic PWM framework driver for Allwinner SoCs.
 313
 314           To compile this driver as a module, choose M here: the module
 315           will be called pwm-sun4i.
 316
 317 config PWM_TEGRA
 318         tristate "NVIDIA Tegra PWM support"
 319         depends on ARCH_TEGRA
 320         help
 321           Generic PWM framework driver for the PWFM controller found on NVIDIA
 322           Tegra SoCs.
 323
 324           To compile this driver as a module, choose M here: the module
 325           will be called pwm-tegra.
 326
 327 config  PWM_TIECAP
 328         tristate "ECAP PWM support"
 329         depends on SOC_AM33XX || ARCH_DAVINCI_DA8XX
 330         help
 331           PWM driver support for the ECAP APWM controller found on AM33XX
 332           TI SOC
 333
 334           To compile this driver as a module, choose M here: the module
 335           will be called pwm-tiecap.
 336
 337 config  PWM_TIEHRPWM
 338         tristate "EHRPWM PWM support"
 339         depends on SOC_AM33XX || ARCH_DAVINCI_DA8XX
 340         help
 341           PWM driver support for the EHRPWM controller found on AM33XX
 342           TI SOC
 343
 344           To compile this driver as a module, choose M here: the module
 345           will be called pwm-tiehrpwm.
 346
 347 config  PWM_TIPWMSS
 348         bool
 349         default y if SOC_AM33XX && (PWM_TIECAP || PWM_TIEHRPWM)
 350         help
 351           PWM Subsystem driver support for AM33xx SOC.
 352
 353           PWM submodules require PWM config space access from submodule
 354           drivers and require common parent driver support.
 355
 356 config PWM_TWL
 357         tristate "TWL4030/6030 PWM support"
 358         depends on TWL4030_CORE
 359         help
 360           Generic PWM framework driver for TWL4030/6030.
 361
 362           To compile this driver as a module, choose M here: the module
 363           will be called pwm-twl.
 364
 365 config PWM_TWL_LED
 366         tristate "TWL4030/6030 PWM support for LED drivers"
 367         depends on TWL4030_CORE
 368         help
 369           Generic PWM framework driver for TWL4030/6030 LED terminals.
 370
 371           To compile this driver as a module, choose M here: the module
 372           will be called pwm-twl-led.
 373
 374 config PWM_VT8500
 375         tristate "vt8500 PWM support"
 376         depends on ARCH_VT8500
 377         help
 378           Generic PWM framework driver for vt8500.
 379
 380           To compile this driver as a module, choose M here: the module
 381           will be called pwm-vt8500.
 382
 383 endif