[linux-block.git] / drivers / pwm / Kconfig

menuconfig PWM
	bool "Pulse-Width Modulation (PWM) Support"
	help
	  Generic Pulse-Width Modulation (PWM) support.

	  In Pulse-Width Modulation, a variation of the width of pulses
	  in a rectangular pulse signal is used as a means to alter the
	  average power of the signal. Applications include efficient
	  power delivery and voltage regulation. In computer systems,
	  PWMs are commonly used to control fans or the brightness of
	  display backlights.

	  This framework provides a generic interface to PWM devices
	  within the Linux kernel. On the driver side it provides an API
	  to register and unregister a PWM chip, an abstraction of a PWM
	  controller, that supports one or more PWM devices. Client
	  drivers can request PWM devices and use the generic framework
	  to configure as well as enable and disable them.

	  This generic framework replaces the legacy PWM framework which
	  allows only a single driver implementing the required API. Not
	  all legacy implementations have been ported to the framework
	  yet. The framework provides an API that is backward compatible
	  with the legacy framework so that existing client drivers
	  continue to work as expected.

	  If unsure, say no.

if PWM

config PWM_SYSFS
	bool
	default y if SYSFS

config PWM_AB8500
	tristate "AB8500 PWM support"
	depends on AB8500_CORE && ARCH_U8500
	help
	  Generic PWM framework driver for Analog Baseband AB8500.

	  To compile this driver as a module, choose M here: the module
	  will be called pwm-ab8500.

config PWM_ATMEL
	tristate "Atmel PWM support"
	depends on ARCH_AT91 || AVR32
	help
	  Generic PWM framework driver for Atmel SoC.

	  To compile this driver as a module, choose M here: the module
	  will be called pwm-atmel.

config PWM_ATMEL_TCB
	tristate "Atmel TC Block PWM support"
	depends on ATMEL_TCLIB && OF
	help
	  Generic PWM framework driver for Atmel Timer Counter Block.

	  A Timer Counter Block provides 6 PWM devices grouped by 2.
	  Devices in a given group must have the same period.

	  To compile this driver as a module, choose M here: the module
	  will be called pwm-atmel-tcb.

config PWM_BCM_KONA
	tristate "Kona PWM support"
	depends on ARCH_BCM_MOBILE
	help
	  Generic PWM framework driver for Broadcom Kona PWM block.

	  To compile this driver as a module, choose M here: the module
	  will be called pwm-bcm-kona.

config PWM_BFIN
	tristate "Blackfin PWM support"
	depends on BFIN_GPTIMERS
	help
	  Generic PWM framework driver for Blackfin.

	  To compile this driver as a module, choose M here: the module
	  will be called pwm-bfin.

config PWM_CLPS711X
	tristate "CLPS711X PWM support"
	depends on ARCH_CLPS711X || COMPILE_TEST
	help
	  Generic PWM framework driver for Cirrus Logic CLPS711X.

	  To compile this driver as a module, choose M here: the module
	  will be called pwm-clps711x.

config PWM_EP93XX
	tristate "Cirrus Logic EP93xx PWM support"
	depends on ARCH_EP93XX
	help
	  Generic PWM framework driver for Cirrus Logic EP93xx.

	  To compile this driver as a module, choose M here: the module
	  will be called pwm-ep93xx.

config PWM_FSL_FTM
	tristate "Freescale FlexTimer Module (FTM) PWM support"
	depends on OF
	help
	  Generic FTM PWM framework driver for Freescale VF610 and
	  Layerscape LS-1 SoCs.

	  To compile this driver as a module, choose M here: the module
	  will be called pwm-fsl-ftm.

config PWM_IMX
	tristate "i.MX PWM support"
	depends on ARCH_MXC
	help
	  Generic PWM framework driver for i.MX.

	  To compile this driver as a module, choose M here: the module
	  will be called pwm-imx.

config PWM_JZ4740
	tristate "Ingenic JZ4740 PWM support"
	depends on MACH_JZ4740
	help
	  Generic PWM framework driver for Ingenic JZ4740 based
	  machines.

	  To compile this driver as a module, choose M here: the module
	  will be called pwm-jz4740.

config PWM_LP3943
	tristate "TI/National Semiconductor LP3943 PWM support"
	depends on MFD_LP3943
	help
	  Generic PWM framework driver for LP3943 which supports two PWM
	  channels.

	  To compile this driver as a module, choose M here: the module
	  will be called pwm-lp3943.

config PWM_LPC32XX
	tristate "LPC32XX PWM support"
	depends on ARCH_LPC32XX
	help
	  Generic PWM framework driver for LPC32XX. The LPC32XX SOC has two
	  PWM controllers.

	  To compile this driver as a module, choose M here: the module
	  will be called pwm-lpc32xx.

config PWM_LPSS
	tristate "Intel LPSS PWM support"
	depends on ACPI
	help
	  Generic PWM framework driver for Intel Low Power Subsystem PWM
	  controller.

	  To compile this driver as a module, choose M here: the module
	  will be called pwm-lpss.

config PWM_MXS
	tristate "Freescale MXS PWM support"
	depends on ARCH_MXS && OF
	select STMP_DEVICE
	help
	  Generic PWM framework driver for Freescale MXS.

	  To compile this driver as a module, choose M here: the module
	  will be called pwm-mxs.

config PWM_PCA9685
	tristate "NXP PCA9685 PWM driver"
	depends on OF && I2C
	select REGMAP_I2C
	help
	  Generic PWM framework driver for NXP PCA9685 LED controller.

	  To compile this driver as a module, choose M here: the module
	  will be called pwm-pca9685.

config PWM_PUV3
	tristate "PKUnity NetBook-0916 PWM support"
	depends on ARCH_PUV3
	help
	  Generic PWM framework driver for PKUnity NetBook-0916.

	  To compile this driver as a module, choose M here: the module
	  will be called pwm-puv3.

config PWM_PXA
	tristate "PXA PWM support"
	depends on ARCH_PXA
	help
	  Generic PWM framework driver for PXA.

	  To compile this driver as a module, choose M here: the module
	  will be called pwm-pxa.

config PWM_RENESAS_TPU
	tristate "Renesas TPU PWM support"
	depends on ARCH_SHMOBILE || COMPILE_TEST
	depends on HAS_IOMEM
	help
	  This driver exposes the Timer Pulse Unit (TPU) PWM controller found
	  in Renesas chips through the PWM API.

	  To compile this driver as a module, choose M here: the module
	  will be called pwm-renesas-tpu.

config PWM_ROCKCHIP
	tristate "Rockchip PWM support"
	depends on ARCH_ROCKCHIP
	help
	  Generic PWM framework driver for the PWM controller found on
	  Rockchip SoCs.

config PWM_SAMSUNG
	tristate "Samsung PWM support"
	depends on PLAT_SAMSUNG
	help
	  Generic PWM framework driver for Samsung.

	  To compile this driver as a module, choose M here: the module
	  will be called pwm-samsung.

config PWM_SPEAR
	tristate "STMicroelectronics SPEAr PWM support"
	depends on PLAT_SPEAR
	depends on OF
	help
	  Generic PWM framework driver for the PWM controller on ST
	  SPEAr SoCs.

	  To compile this driver as a module, choose M here: the module
	  will be called pwm-spear.

config PWM_STI
	tristate "STiH4xx PWM support"
	depends on ARCH_STI
	depends on OF
	help
	  Generic PWM framework driver for STiH4xx SoCs.

	  To compile this driver as a module, choose M here: the module
	  will be called pwm-sti.

config PWM_TEGRA
	tristate "NVIDIA Tegra PWM support"
	depends on ARCH_TEGRA
	help
	  Generic PWM framework driver for the PWFM controller found on NVIDIA
	  Tegra SoCs.

	  To compile this driver as a module, choose M here: the module
	  will be called pwm-tegra.

config  PWM_TIECAP
	tristate "ECAP PWM support"
	depends on SOC_AM33XX || ARCH_DAVINCI_DA8XX
	help
	  PWM driver support for the ECAP APWM controller found on AM33XX
	  TI SOC

	  To compile this driver as a module, choose M here: the module
	  will be called pwm-tiecap.

config  PWM_TIEHRPWM
	tristate "EHRPWM PWM support"
	depends on SOC_AM33XX || ARCH_DAVINCI_DA8XX
	help
	  PWM driver support for the EHRPWM controller found on AM33XX
	  TI SOC

	  To compile this driver as a module, choose M here: the module
	  will be called pwm-tiehrpwm.

config  PWM_TIPWMSS
	bool
	default y if SOC_AM33XX && (PWM_TIECAP || PWM_TIEHRPWM)
	help
	  PWM Subsystem driver support for AM33xx SOC.

	  PWM submodules require PWM config space access from submodule
	  drivers and require common parent driver support.

config PWM_TWL
	tristate "TWL4030/6030 PWM support"
	depends on TWL4030_CORE
	help
	  Generic PWM framework driver for TWL4030/6030.

	  To compile this driver as a module, choose M here: the module
	  will be called pwm-twl.

config PWM_TWL_LED
	tristate "TWL4030/6030 PWM support for LED drivers"
	depends on TWL4030_CORE
	help
	  Generic PWM framework driver for TWL4030/6030 LED terminals.

	  To compile this driver as a module, choose M here: the module
	  will be called pwm-twl-led.

config PWM_VT8500
	tristate "vt8500 PWM support"
	depends on ARCH_VT8500
	help
	  Generic PWM framework driver for vt8500.

	  To compile this driver as a module, choose M here: the module
	  will be called pwm-vt8500.

endif
Commit	Line	Data
0c2498f1	1	menuconfig PWM
b817bf5c	2	bool "Pulse-Width Modulation (PWM) Support"
0c2498f1	3	help
b817bf5c	4	Generic Pulse-Width Modulation (PWM) support.
0c2498f1	5
b817bf5c TR	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.
0c2498f1 SH	28
	29	if PWM
	30
76abbdde HS	31	config PWM_SYSFS
	32	bool
	33	default y if SYSFS
	34
6173f8f4 TR	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
32b16d46 BS	44	config PWM_ATMEL
32b16d46 BS	45	tristate "Atmel PWM support"
bb4bbbaa	46	depends on ARCH_AT91 \|\| AVR32
32b16d46 BS	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
9421bade	53	config PWM_ATMEL_TCB
b133d2a1	54	tristate "Atmel TC Block PWM support"
9421bade BB	55	depends on ATMEL_TCLIB && OF
	56	help
	57	Generic PWM framework driver for Atmel Timer Counter Block.
	58
	59	A Timer Counter Block provides 6 PWM devices grouped by 2.
	60	Devices in a given group must have the same period.
	61
	62	To compile this driver as a module, choose M here: the module
	63	will be called pwm-atmel-tcb.
	64
6a4e4bff TK	65	config PWM_BCM_KONA
	66	tristate "Kona PWM support"
	67	depends on ARCH_BCM_MOBILE
	68	help
	69	Generic PWM framework driver for Broadcom Kona PWM block.
	70
	71	To compile this driver as a module, choose M here: the module
	72	will be called pwm-bcm-kona.
	73
a4315e3c TR	74	config PWM_BFIN
	75	tristate "Blackfin PWM support"
	76	depends on BFIN_GPTIMERS
	77	help
	78	Generic PWM framework driver for Blackfin.
	79
	80	To compile this driver as a module, choose M here: the module
	81	will be called pwm-bfin.
	82
7eb3f6ff AS	83	config PWM_CLPS711X
	84	tristate "CLPS711X PWM support"
	85	depends on ARCH_CLPS711X \|\| COMPILE_TEST
	86	help
	87	Generic PWM framework driver for Cirrus Logic CLPS711X.
	88
	89	To compile this driver as a module, choose M here: the module
	90	will be called pwm-clps711x.
	91
a2308698 HS	92	config PWM_EP93XX
	93	tristate "Cirrus Logic EP93xx PWM support"
	94	depends on ARCH_EP93XX
	95	help
	96	Generic PWM framework driver for Cirrus Logic EP93xx.
	97
	98	To compile this driver as a module, choose M here: the module
	99	will be called pwm-ep93xx.
	100
b505183b XL	101	config PWM_FSL_FTM
	102	tristate "Freescale FlexTimer Module (FTM) PWM support"
	103	depends on OF
	104	help
	105	Generic FTM PWM framework driver for Freescale VF610 and
	106	Layerscape LS-1 SoCs.
	107
	108	To compile this driver as a module, choose M here: the module
	109	will be called pwm-fsl-ftm.
	110
29693248	111	config PWM_IMX
b133d2a1	112	tristate "i.MX PWM support"
29693248 SH	113	depends on ARCH_MXC
	114	help
	115	Generic PWM framework driver for i.MX.
	116
	117	To compile this driver as a module, choose M here: the module
	118	will be called pwm-imx.
	119
f6b8a570 TR	120	config PWM_JZ4740
	121	tristate "Ingenic JZ4740 PWM support"
	122	depends on MACH_JZ4740
	123	help
	124	Generic PWM framework driver for Ingenic JZ4740 based
	125	machines.
	126
	127	To compile this driver as a module, choose M here: the module
	128	will be called pwm-jz4740.
	129
af66b3c0 MK	130	config PWM_LP3943
	131	tristate "TI/National Semiconductor LP3943 PWM support"
	132	depends on MFD_LP3943
	133	help
	134	Generic PWM framework driver for LP3943 which supports two PWM
	135	channels.
	136
	137	To compile this driver as a module, choose M here: the module
	138	will be called pwm-lp3943.
	139
2132fa8d APS	140	config PWM_LPC32XX
	141	tristate "LPC32XX PWM support"
	142	depends on ARCH_LPC32XX
	143	help
	144	Generic PWM framework driver for LPC32XX. The LPC32XX SOC has two
	145	PWM controllers.
	146
	147	To compile this driver as a module, choose M here: the module
	148	will be called pwm-lpc32xx.
	149
d16a5aa9 MW	150	config PWM_LPSS
	151	tristate "Intel LPSS PWM support"
	152	depends on ACPI
	153	help
	154	Generic PWM framework driver for Intel Low Power Subsystem PWM
	155	controller.
	156
	157	To compile this driver as a module, choose M here: the module
	158	will be called pwm-lpss.
	159
4dce82c1 SG	160	config PWM_MXS
	161	tristate "Freescale MXS PWM support"
	162	depends on ARCH_MXS && OF
01bf32e9	163	select STMP_DEVICE
4dce82c1 SG	164	help
	165	Generic PWM framework driver for Freescale MXS.
	166
	167	To compile this driver as a module, choose M here: the module
	168	will be called pwm-mxs.
	169
88b613e6 ST	170	config PWM_PCA9685
88b613e6 ST	171	tristate "NXP PCA9685 PWM driver"
2c80a492 AL	172	depends on OF && I2C
2c80a492 AL	173	select REGMAP_I2C
88b613e6 ST	174	help
	175	Generic PWM framework driver for NXP PCA9685 LED controller.
	176
	177	To compile this driver as a module, choose M here: the module
	178	will be called pwm-pca9685.
	179
79c11b6f TR	180	config PWM_PUV3
	181	tristate "PKUnity NetBook-0916 PWM support"
	182	depends on ARCH_PUV3
	183	help
	184	Generic PWM framework driver for PKUnity NetBook-0916.
	185
	186	To compile this driver as a module, choose M here: the module
	187	will be called pwm-puv3.
	188
17b2b478 TR	189	config PWM_PXA
	190	tristate "PXA PWM support"
	191	depends on ARCH_PXA
	192	help
	193	Generic PWM framework driver for PXA.
	194
	195	To compile this driver as a module, choose M here: the module
	196	will be called pwm-pxa.
	197
99b82abb LP	198	config PWM_RENESAS_TPU
99b82abb LP	199	tristate "Renesas TPU PWM support"
94d88d63	200	depends on ARCH_SHMOBILE \|\| COMPILE_TEST
2974b098	201	depends on HAS_IOMEM
99b82abb LP	202	help
	203	This driver exposes the Timer Pulse Unit (TPU) PWM controller found
	204	in Renesas chips through the PWM API.
	205
	206	To compile this driver as a module, choose M here: the module
	207	will be called pwm-renesas-tpu.
	208
101353c8 BG	209	config PWM_ROCKCHIP
	210	tristate "Rockchip PWM support"
	211	depends on ARCH_ROCKCHIP
	212	help
	213	Generic PWM framework driver for the PWM controller found on
	214	Rockchip SoCs.
	215
215c29d3	216	config PWM_SAMSUNG
b133d2a1	217	tristate "Samsung PWM support"
215c29d3 SH	218	depends on PLAT_SAMSUNG
	219	help
	220	Generic PWM framework driver for Samsung.
	221
	222	To compile this driver as a module, choose M here: the module
	223	will be called pwm-samsung.
	224
ce20364b SH	225	config PWM_SPEAR
	226	tristate "STMicroelectronics SPEAr PWM support"
	227	depends on PLAT_SPEAR
	228	depends on OF
	229	help
	230	Generic PWM framework driver for the PWM controller on ST
	231	SPEAr SoCs.
	232
	233	To compile this driver as a module, choose M here: the module
	234	will be called pwm-spear.
	235
378fe115 LJ	236	config PWM_STI
	237	tristate "STiH4xx PWM support"
	238	depends on ARCH_STI
	239	depends on OF
	240	help
	241	Generic PWM framework driver for STiH4xx SoCs.
	242
	243	To compile this driver as a module, choose M here: the module
	244	will be called pwm-sti.
	245
0134b932 TR	246	config PWM_TEGRA
	247	tristate "NVIDIA Tegra PWM support"
	248	depends on ARCH_TEGRA
	249	help
	250	Generic PWM framework driver for the PWFM controller found on NVIDIA
	251	Tegra SoCs.
	252
	253	To compile this driver as a module, choose M here: the module
	254	will be called pwm-tegra.
	255
8e0cb05b PA	256	config PWM_TIECAP
8e0cb05b PA	257	tristate "ECAP PWM support"
1bf0f20b	258	depends on SOC_AM33XX \|\| ARCH_DAVINCI_DA8XX
8e0cb05b PA	259	help
	260	PWM driver support for the ECAP APWM controller found on AM33XX
	261	TI SOC
	262
	263	To compile this driver as a module, choose M here: the module
	264	will be called pwm-tiecap.
	265
19891b20 PA	266	config PWM_TIEHRPWM
19891b20 PA	267	tristate "EHRPWM PWM support"
1bf0f20b	268	depends on SOC_AM33XX \|\| ARCH_DAVINCI_DA8XX
19891b20 PA	269	help
	270	PWM driver support for the EHRPWM controller found on AM33XX
	271	TI SOC
	272
	273	To compile this driver as a module, choose M here: the module
	274	will be called pwm-tiehrpwm.
	275
af0ba001 PA	276	config PWM_TIPWMSS
af0ba001 PA	277	bool
1bf0f20b	278	default y if SOC_AM33XX && (PWM_TIECAP \|\| PWM_TIEHRPWM)
af0ba001 PA	279	help
	280	PWM Subsystem driver support for AM33xx SOC.
	281
	282	PWM submodules require PWM config space access from submodule
	283	drivers and require common parent driver support.
	284
3744c263 PU	285	config PWM_TWL
	286	tristate "TWL4030/6030 PWM support"
	287	depends on TWL4030_CORE
	288	help
	289	Generic PWM framework driver for TWL4030/6030.
	290
	291	To compile this driver as a module, choose M here: the module
	292	will be called pwm-twl.
	293
aa765647 PU	294	config PWM_TWL_LED
	295	tristate "TWL4030/6030 PWM support for LED drivers"
	296	depends on TWL4030_CORE
	297	help
	298	Generic PWM framework driver for TWL4030/6030 LED terminals.
	299
	300	To compile this driver as a module, choose M here: the module
	301	will be called pwm-twl-led.
	302
a245cceb	303	config PWM_VT8500
b133d2a1	304	tristate "vt8500 PWM support"
a245cceb SH	305	depends on ARCH_VT8500
	306	help
	307	Generic PWM framework driver for vt8500.
	308
	309	To compile this driver as a module, choose M here: the module
	310	will be called pwm-vt8500.
	311
0c2498f1	312	endif