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_EP93XX
 115         tristate "Cirrus Logic EP93xx PWM support"
 116         depends on ARCH_EP93XX
 117         help
 118           Generic PWM framework driver for Cirrus Logic EP93xx.
 119
 120           To compile this driver as a module, choose M here: the module
 121           will be called pwm-ep93xx.
 122
 123 config PWM_FSL_FTM
 124         tristate "Freescale FlexTimer Module (FTM) PWM support"
 125         depends on OF
 126         select REGMAP_MMIO
 127         help
 128           Generic FTM PWM framework driver for Freescale VF610 and
 129           Layerscape LS-1 SoCs.
 130
 131           To compile this driver as a module, choose M here: the module
 132           will be called pwm-fsl-ftm.
 133
 134 config PWM_IMX
 135         tristate "i.MX PWM support"
 136         depends on ARCH_MXC
 137         help
 138           Generic PWM framework driver for i.MX.
 139
 140           To compile this driver as a module, choose M here: the module
 141           will be called pwm-imx.
 142
 143 config PWM_JZ4740
 144         tristate "Ingenic JZ4740 PWM support"
 145         depends on MACH_JZ4740
 146         help
 147           Generic PWM framework driver for Ingenic JZ4740 based
 148           machines.
 149
 150           To compile this driver as a module, choose M here: the module
 151           will be called pwm-jz4740.
 152
 153 config PWM_LP3943
 154         tristate "TI/National Semiconductor LP3943 PWM support"
 155         depends on MFD_LP3943
 156         help
 157           Generic PWM framework driver for LP3943 which supports two PWM
 158           channels.
 159
 160           To compile this driver as a module, choose M here: the module
 161           will be called pwm-lp3943.
 162
 163 config PWM_LPC32XX
 164         tristate "LPC32XX PWM support"
 165         depends on ARCH_LPC32XX
 166         help
 167           Generic PWM framework driver for LPC32XX. The LPC32XX SOC has two
 168           PWM controllers.
 169
 170           To compile this driver as a module, choose M here: the module
 171           will be called pwm-lpc32xx.
 172
 173 config PWM_LPSS
 174         tristate "Intel LPSS PWM support"
 175         depends on X86
 176         help
 177           Generic PWM framework driver for Intel Low Power Subsystem PWM
 178           controller.
 179
 180           To compile this driver as a module, choose M here: the module
 181           will be called pwm-lpss.
 182
 183 config PWM_LPSS_PCI
 184         tristate "Intel LPSS PWM PCI driver"
 185         depends on PWM_LPSS && PCI
 186         help
 187           The PCI driver for Intel Low Power Subsystem PWM controller.
 188
 189           To compile this driver as a module, choose M here: the module
 190           will be called pwm-lpss-pci.
 191
 192 config PWM_LPSS_PLATFORM
 193         tristate "Intel LPSS PWM platform driver"
 194         depends on PWM_LPSS && ACPI
 195         help
 196           The platform driver for Intel Low Power Subsystem PWM controller.
 197
 198           To compile this driver as a module, choose M here: the module
 199           will be called pwm-lpss-platform.
 200
 201 config PWM_MXS
 202         tristate "Freescale MXS PWM support"
 203         depends on ARCH_MXS && OF
 204         select STMP_DEVICE
 205         help
 206           Generic PWM framework driver for Freescale MXS.
 207
 208           To compile this driver as a module, choose M here: the module
 209           will be called pwm-mxs.
 210
 211 config PWM_PCA9685
 212         tristate "NXP PCA9685 PWM driver"
 213         depends on OF && I2C
 214         select REGMAP_I2C
 215         help
 216           Generic PWM framework driver for NXP PCA9685 LED controller.
 217
 218           To compile this driver as a module, choose M here: the module
 219           will be called pwm-pca9685.
 220
 221 config PWM_PUV3
 222         tristate "PKUnity NetBook-0916 PWM support"
 223         depends on ARCH_PUV3
 224         help
 225           Generic PWM framework driver for PKUnity NetBook-0916.
 226
 227           To compile this driver as a module, choose M here: the module
 228           will be called pwm-puv3.
 229
 230 config PWM_PXA
 231         tristate "PXA PWM support"
 232         depends on ARCH_PXA
 233         help
 234           Generic PWM framework driver for PXA.
 235
 236           To compile this driver as a module, choose M here: the module
 237           will be called pwm-pxa.
 238
 239 config PWM_RENESAS_TPU
 240         tristate "Renesas TPU PWM support"
 241         depends on ARCH_SHMOBILE || COMPILE_TEST
 242         depends on HAS_IOMEM
 243         help
 244           This driver exposes the Timer Pulse Unit (TPU) PWM controller found
 245           in Renesas chips through the PWM API.
 246
 247           To compile this driver as a module, choose M here: the module
 248           will be called pwm-renesas-tpu.
 249
 250 config PWM_ROCKCHIP
 251         tristate "Rockchip PWM support"
 252         depends on ARCH_ROCKCHIP
 253         help
 254           Generic PWM framework driver for the PWM controller found on
 255           Rockchip SoCs.
 256
 257 config PWM_SAMSUNG
 258         tristate "Samsung PWM support"
 259         depends on PLAT_SAMSUNG || ARCH_EXYNOS
 260         help
 261           Generic PWM framework driver for Samsung.
 262
 263           To compile this driver as a module, choose M here: the module
 264           will be called pwm-samsung.
 265
 266 config PWM_SPEAR
 267         tristate "STMicroelectronics SPEAr PWM support"
 268         depends on PLAT_SPEAR
 269         depends on OF
 270         help
 271           Generic PWM framework driver for the PWM controller on ST
 272           SPEAr SoCs.
 273
 274           To compile this driver as a module, choose M here: the module
 275           will be called pwm-spear.
 276
 277 config PWM_STI
 278         tristate "STiH4xx PWM support"
 279         depends on ARCH_STI
 280         depends on OF
 281         help
 282           Generic PWM framework driver for STiH4xx SoCs.
 283
 284           To compile this driver as a module, choose M here: the module
 285           will be called pwm-sti.
 286
 287 config PWM_TEGRA
 288         tristate "NVIDIA Tegra PWM support"
 289         depends on ARCH_TEGRA
 290         help
 291           Generic PWM framework driver for the PWFM controller found on NVIDIA
 292           Tegra SoCs.
 293
 294           To compile this driver as a module, choose M here: the module
 295           will be called pwm-tegra.
 296
 297 config  PWM_TIECAP
 298         tristate "ECAP PWM support"
 299         depends on SOC_AM33XX || ARCH_DAVINCI_DA8XX
 300         help
 301           PWM driver support for the ECAP APWM controller found on AM33XX
 302           TI SOC
 303
 304           To compile this driver as a module, choose M here: the module
 305           will be called pwm-tiecap.
 306
 307 config  PWM_TIEHRPWM
 308         tristate "EHRPWM PWM support"
 309         depends on SOC_AM33XX || ARCH_DAVINCI_DA8XX
 310         help
 311           PWM driver support for the EHRPWM controller found on AM33XX
 312           TI SOC
 313
 314           To compile this driver as a module, choose M here: the module
 315           will be called pwm-tiehrpwm.
 316
 317 config  PWM_TIPWMSS
 318         bool
 319         default y if SOC_AM33XX && (PWM_TIECAP || PWM_TIEHRPWM)
 320         help
 321           PWM Subsystem driver support for AM33xx SOC.
 322
 323           PWM submodules require PWM config space access from submodule
 324           drivers and require common parent driver support.
 325
 326 config PWM_TWL
 327         tristate "TWL4030/6030 PWM support"
 328         depends on TWL4030_CORE
 329         help
 330           Generic PWM framework driver for TWL4030/6030.
 331
 332           To compile this driver as a module, choose M here: the module
 333           will be called pwm-twl.
 334
 335 config PWM_TWL_LED
 336         tristate "TWL4030/6030 PWM support for LED drivers"
 337         depends on TWL4030_CORE
 338         help
 339           Generic PWM framework driver for TWL4030/6030 LED terminals.
 340
 341           To compile this driver as a module, choose M here: the module
 342           will be called pwm-twl-led.
 343
 344 config PWM_VT8500
 345         tristate "vt8500 PWM support"
 346         depends on ARCH_VT8500
 347         help
 348           Generic PWM framework driver for vt8500.
 349
 350           To compile this driver as a module, choose M here: the module
 351           will be called pwm-vt8500.
 352
 353 endif