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 |
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 | ||
2b4984be BB |
53 | config PWM_ATMEL_HLCDC_PWM |
54 | tristate "Atmel HLCDC PWM support" | |
55 | depends on MFD_ATMEL_HLCDC | |
d2048c49 | 56 | depends on HAVE_CLK |
2b4984be BB |
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 | ||
9421bade | 65 | config PWM_ATMEL_TCB |
b133d2a1 | 66 | tristate "Atmel TC Block PWM support" |
9421bade BB |
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 | ||
6a4e4bff TK |
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 | ||
e5a06dc5 BT |
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 | ||
59d5c8b1 AT |
95 | config PWM_BERLIN |
96 | tristate "Marvell Berlin PWM support" | |
97 | depends on ARCH_BERLIN | |
98 | help | |
99 | PWM framework driver for Marvell Berlin SoCs. | |
100 | ||
101 | To compile this driver as a module, choose M here: the module | |
102 | will be called pwm-berlin. | |
103 | ||
a4315e3c TR |
104 | config PWM_BFIN |
105 | tristate "Blackfin PWM support" | |
106 | depends on BFIN_GPTIMERS | |
107 | help | |
108 | Generic PWM framework driver for Blackfin. | |
109 | ||
110 | To compile this driver as a module, choose M here: the module | |
111 | will be called pwm-bfin. | |
112 | ||
3a9f5957 FF |
113 | config PWM_BRCMSTB |
114 | tristate "Broadcom STB PWM support" | |
115 | depends on ARCH_BRCMSTB || BMIPS_GENERIC | |
116 | help | |
117 | Generic PWM framework driver for the Broadcom Set-top-Box | |
118 | SoCs (BCM7xxx). | |
119 | ||
120 | To compile this driver as a module, choose M Here: the module | |
121 | will be called pwm-brcmstb.c. | |
122 | ||
7eb3f6ff AS |
123 | config PWM_CLPS711X |
124 | tristate "CLPS711X PWM support" | |
125 | depends on ARCH_CLPS711X || COMPILE_TEST | |
dec02f98 | 126 | depends on HAS_IOMEM |
7eb3f6ff AS |
127 | help |
128 | Generic PWM framework driver for Cirrus Logic CLPS711X. | |
129 | ||
130 | To compile this driver as a module, choose M here: the module | |
131 | will be called pwm-clps711x. | |
132 | ||
a3f37a10 SK |
133 | config PWM_CRC |
134 | bool "Intel Crystalcove (CRC) PWM support" | |
135 | depends on X86 && INTEL_SOC_PMIC | |
136 | help | |
137 | Generic PWM framework driver for Crystalcove (CRC) PMIC based PWM | |
138 | control. | |
139 | ||
a2308698 HS |
140 | config PWM_EP93XX |
141 | tristate "Cirrus Logic EP93xx PWM support" | |
142 | depends on ARCH_EP93XX | |
143 | help | |
144 | Generic PWM framework driver for Cirrus Logic EP93xx. | |
145 | ||
146 | To compile this driver as a module, choose M here: the module | |
147 | will be called pwm-ep93xx. | |
148 | ||
b505183b XL |
149 | config PWM_FSL_FTM |
150 | tristate "Freescale FlexTimer Module (FTM) PWM support" | |
151 | depends on OF | |
00018a8a | 152 | select REGMAP_MMIO |
b505183b XL |
153 | help |
154 | Generic FTM PWM framework driver for Freescale VF610 and | |
155 | Layerscape LS-1 SoCs. | |
156 | ||
157 | To compile this driver as a module, choose M here: the module | |
158 | will be called pwm-fsl-ftm. | |
159 | ||
277bb6a2 NT |
160 | config PWM_IMG |
161 | tristate "Imagination Technologies PWM driver" | |
162 | depends on HAS_IOMEM | |
163 | depends on MFD_SYSCON | |
164 | depends on COMMON_CLK | |
165 | depends on MIPS || COMPILE_TEST | |
166 | help | |
167 | Generic PWM framework driver for Imagination Technologies | |
168 | PWM block which supports 4 channels. | |
169 | ||
170 | To compile this driver as a module, choose M here: the module | |
171 | will be called pwm-img | |
172 | ||
29693248 | 173 | config PWM_IMX |
b133d2a1 | 174 | tristate "i.MX PWM support" |
29693248 SH |
175 | depends on ARCH_MXC |
176 | help | |
177 | Generic PWM framework driver for i.MX. | |
178 | ||
179 | To compile this driver as a module, choose M here: the module | |
180 | will be called pwm-imx. | |
181 | ||
f6b8a570 TR |
182 | config PWM_JZ4740 |
183 | tristate "Ingenic JZ4740 PWM support" | |
184 | depends on MACH_JZ4740 | |
185 | help | |
186 | Generic PWM framework driver for Ingenic JZ4740 based | |
187 | machines. | |
188 | ||
189 | To compile this driver as a module, choose M here: the module | |
190 | will be called pwm-jz4740. | |
191 | ||
af66b3c0 MK |
192 | config PWM_LP3943 |
193 | tristate "TI/National Semiconductor LP3943 PWM support" | |
194 | depends on MFD_LP3943 | |
195 | help | |
196 | Generic PWM framework driver for LP3943 which supports two PWM | |
197 | channels. | |
198 | ||
199 | To compile this driver as a module, choose M here: the module | |
200 | will be called pwm-lp3943. | |
201 | ||
841e6f90 AA |
202 | config PWM_LPC18XX_SCT |
203 | tristate "LPC18xx/43xx PWM/SCT support" | |
204 | depends on ARCH_LPC18XX | |
205 | help | |
206 | Generic PWM framework driver for NXP LPC18xx PWM/SCT which | |
207 | supports 16 channels. | |
208 | A maximum of 15 channels can be requested simultaneously and | |
209 | must have the same period. | |
210 | ||
211 | To compile this driver as a module, choose M here: the module | |
212 | will be called pwm-lpc18xx-sct. | |
213 | ||
2132fa8d APS |
214 | config PWM_LPC32XX |
215 | tristate "LPC32XX PWM support" | |
216 | depends on ARCH_LPC32XX | |
217 | help | |
218 | Generic PWM framework driver for LPC32XX. The LPC32XX SOC has two | |
219 | PWM controllers. | |
220 | ||
221 | To compile this driver as a module, choose M here: the module | |
222 | will be called pwm-lpc32xx. | |
223 | ||
d16a5aa9 MW |
224 | config PWM_LPSS |
225 | tristate "Intel LPSS PWM support" | |
ad16202d | 226 | depends on X86 |
d16a5aa9 MW |
227 | help |
228 | Generic PWM framework driver for Intel Low Power Subsystem PWM | |
229 | controller. | |
230 | ||
231 | To compile this driver as a module, choose M here: the module | |
232 | will be called pwm-lpss. | |
233 | ||
c558e39e AS |
234 | config PWM_LPSS_PCI |
235 | tristate "Intel LPSS PWM PCI driver" | |
236 | depends on PWM_LPSS && PCI | |
237 | help | |
238 | The PCI driver for Intel Low Power Subsystem PWM controller. | |
239 | ||
240 | To compile this driver as a module, choose M here: the module | |
241 | will be called pwm-lpss-pci. | |
242 | ||
243 | config PWM_LPSS_PLATFORM | |
244 | tristate "Intel LPSS PWM platform driver" | |
245 | depends on PWM_LPSS && ACPI | |
246 | help | |
247 | The platform driver for Intel Low Power Subsystem PWM controller. | |
248 | ||
249 | To compile this driver as a module, choose M here: the module | |
250 | will be called pwm-lpss-platform. | |
251 | ||
7e3b7dc7 YH |
252 | config PWM_MTK_DISP |
253 | tristate "MediaTek display PWM driver" | |
254 | depends on ARCH_MEDIATEK || COMPILE_TEST | |
255 | depends on HAS_IOMEM | |
256 | help | |
257 | Generic PWM framework driver for MediaTek disp-pwm device. | |
258 | The PWM is used to control the backlight brightness for display. | |
259 | ||
260 | To compile this driver as a module, choose M here: the module | |
261 | will be called pwm-mtk-disp. | |
262 | ||
4dce82c1 SG |
263 | config PWM_MXS |
264 | tristate "Freescale MXS PWM support" | |
265 | depends on ARCH_MXS && OF | |
01bf32e9 | 266 | select STMP_DEVICE |
4dce82c1 SG |
267 | help |
268 | Generic PWM framework driver for Freescale MXS. | |
269 | ||
270 | To compile this driver as a module, choose M here: the module | |
271 | will be called pwm-mxs. | |
272 | ||
88b613e6 ST |
273 | config PWM_PCA9685 |
274 | tristate "NXP PCA9685 PWM driver" | |
912b8439 | 275 | depends on I2C |
2c80a492 | 276 | select REGMAP_I2C |
88b613e6 ST |
277 | help |
278 | Generic PWM framework driver for NXP PCA9685 LED controller. | |
279 | ||
280 | To compile this driver as a module, choose M here: the module | |
281 | will be called pwm-pca9685. | |
282 | ||
79c11b6f TR |
283 | config PWM_PUV3 |
284 | tristate "PKUnity NetBook-0916 PWM support" | |
285 | depends on ARCH_PUV3 | |
286 | help | |
287 | Generic PWM framework driver for PKUnity NetBook-0916. | |
288 | ||
289 | To compile this driver as a module, choose M here: the module | |
290 | will be called pwm-puv3. | |
291 | ||
17b2b478 TR |
292 | config PWM_PXA |
293 | tristate "PXA PWM support" | |
294 | depends on ARCH_PXA | |
295 | help | |
296 | Generic PWM framework driver for PXA. | |
297 | ||
298 | To compile this driver as a module, choose M here: the module | |
299 | will be called pwm-pxa. | |
300 | ||
ed6c1476 YS |
301 | config PWM_RCAR |
302 | tristate "Renesas R-Car PWM support" | |
303 | depends on ARCH_RCAR_GEN1 || ARCH_RCAR_GEN2 || COMPILE_TEST | |
304 | depends on HAS_IOMEM | |
305 | help | |
306 | This driver exposes the PWM Timer controller found in Renesas | |
307 | R-Car chips through the PWM API. | |
308 | ||
309 | To compile this driver as a module, choose M here: the module | |
310 | will be called pwm-rcar. | |
311 | ||
99b82abb LP |
312 | config PWM_RENESAS_TPU |
313 | tristate "Renesas TPU PWM support" | |
94d88d63 | 314 | depends on ARCH_SHMOBILE || COMPILE_TEST |
2974b098 | 315 | depends on HAS_IOMEM |
99b82abb LP |
316 | help |
317 | This driver exposes the Timer Pulse Unit (TPU) PWM controller found | |
318 | in Renesas chips through the PWM API. | |
319 | ||
320 | To compile this driver as a module, choose M here: the module | |
321 | will be called pwm-renesas-tpu. | |
322 | ||
101353c8 BG |
323 | config PWM_ROCKCHIP |
324 | tristate "Rockchip PWM support" | |
325 | depends on ARCH_ROCKCHIP | |
326 | help | |
327 | Generic PWM framework driver for the PWM controller found on | |
328 | Rockchip SoCs. | |
329 | ||
215c29d3 | 330 | config PWM_SAMSUNG |
b133d2a1 | 331 | tristate "Samsung PWM support" |
06e4cb6b | 332 | depends on PLAT_SAMSUNG || ARCH_EXYNOS |
215c29d3 SH |
333 | help |
334 | Generic PWM framework driver for Samsung. | |
335 | ||
336 | To compile this driver as a module, choose M here: the module | |
337 | will be called pwm-samsung. | |
338 | ||
ce20364b SH |
339 | config PWM_SPEAR |
340 | tristate "STMicroelectronics SPEAr PWM support" | |
341 | depends on PLAT_SPEAR | |
342 | depends on OF | |
343 | help | |
344 | Generic PWM framework driver for the PWM controller on ST | |
345 | SPEAr SoCs. | |
346 | ||
347 | To compile this driver as a module, choose M here: the module | |
348 | will be called pwm-spear. | |
349 | ||
378fe115 LJ |
350 | config PWM_STI |
351 | tristate "STiH4xx PWM support" | |
352 | depends on ARCH_STI | |
353 | depends on OF | |
354 | help | |
355 | Generic PWM framework driver for STiH4xx SoCs. | |
356 | ||
357 | To compile this driver as a module, choose M here: the module | |
358 | will be called pwm-sti. | |
359 | ||
09853ce7 AB |
360 | config PWM_SUN4I |
361 | tristate "Allwinner PWM support" | |
362 | depends on ARCH_SUNXI || COMPILE_TEST | |
363 | depends on HAS_IOMEM && COMMON_CLK | |
364 | help | |
365 | Generic PWM framework driver for Allwinner SoCs. | |
366 | ||
367 | To compile this driver as a module, choose M here: the module | |
368 | will be called pwm-sun4i. | |
369 | ||
0134b932 TR |
370 | config PWM_TEGRA |
371 | tristate "NVIDIA Tegra PWM support" | |
372 | depends on ARCH_TEGRA | |
373 | help | |
374 | Generic PWM framework driver for the PWFM controller found on NVIDIA | |
375 | Tegra SoCs. | |
376 | ||
377 | To compile this driver as a module, choose M here: the module | |
378 | will be called pwm-tegra. | |
379 | ||
8e0cb05b PA |
380 | config PWM_TIECAP |
381 | tristate "ECAP PWM support" | |
25ebc9ec | 382 | depends on ARCH_OMAP2PLUS || ARCH_DAVINCI_DA8XX |
8e0cb05b PA |
383 | help |
384 | PWM driver support for the ECAP APWM controller found on AM33XX | |
385 | TI SOC | |
386 | ||
387 | To compile this driver as a module, choose M here: the module | |
388 | will be called pwm-tiecap. | |
389 | ||
19891b20 PA |
390 | config PWM_TIEHRPWM |
391 | tristate "EHRPWM PWM support" | |
25ebc9ec | 392 | depends on ARCH_OMAP2PLUS || ARCH_DAVINCI_DA8XX |
19891b20 PA |
393 | help |
394 | PWM driver support for the EHRPWM controller found on AM33XX | |
395 | TI SOC | |
396 | ||
397 | To compile this driver as a module, choose M here: the module | |
398 | will be called pwm-tiehrpwm. | |
399 | ||
af0ba001 PA |
400 | config PWM_TIPWMSS |
401 | bool | |
25ebc9ec | 402 | default y if (ARCH_OMAP2PLUS) && (PWM_TIECAP || PWM_TIEHRPWM) |
af0ba001 PA |
403 | help |
404 | PWM Subsystem driver support for AM33xx SOC. | |
405 | ||
406 | PWM submodules require PWM config space access from submodule | |
407 | drivers and require common parent driver support. | |
408 | ||
3744c263 PU |
409 | config PWM_TWL |
410 | tristate "TWL4030/6030 PWM support" | |
411 | depends on TWL4030_CORE | |
412 | help | |
413 | Generic PWM framework driver for TWL4030/6030. | |
414 | ||
415 | To compile this driver as a module, choose M here: the module | |
416 | will be called pwm-twl. | |
417 | ||
aa765647 PU |
418 | config PWM_TWL_LED |
419 | tristate "TWL4030/6030 PWM support for LED drivers" | |
420 | depends on TWL4030_CORE | |
421 | help | |
422 | Generic PWM framework driver for TWL4030/6030 LED terminals. | |
423 | ||
424 | To compile this driver as a module, choose M here: the module | |
425 | will be called pwm-twl-led. | |
426 | ||
a245cceb | 427 | config PWM_VT8500 |
b133d2a1 | 428 | tristate "vt8500 PWM support" |
a245cceb SH |
429 | depends on ARCH_VT8500 |
430 | help | |
431 | Generic PWM framework driver for vt8500. | |
432 | ||
433 | To compile this driver as a module, choose M here: the module | |
434 | will be called pwm-vt8500. | |
435 | ||
0c2498f1 | 436 | endif |