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Sascha Hauer0c2498f2011-01-28 09:40:40 +01001menuconfig PWM
Thierry Redingb817bf52012-08-16 08:01:21 +02002 bool "Pulse-Width Modulation (PWM) Support"
Thierry Reding79c11b62012-08-31 08:29:24 +02003 depends on !MACH_JZ4740
Sascha Hauer0c2498f2011-01-28 09:40:40 +01004 help
Thierry Redingb817bf52012-08-16 08:01:21 +02005 Generic Pulse-Width Modulation (PWM) support.
Sascha Hauer0c2498f2011-01-28 09:40:40 +01006
Thierry Redingb817bf52012-08-16 08:01:21 +02007 In Pulse-Width Modulation, a variation of the width of pulses
8 in a rectangular pulse signal is used as a means to alter the
9 average power of the signal. Applications include efficient
10 power delivery and voltage regulation. In computer systems,
11 PWMs are commonly used to control fans or the brightness of
12 display backlights.
13
14 This framework provides a generic interface to PWM devices
15 within the Linux kernel. On the driver side it provides an API
16 to register and unregister a PWM chip, an abstraction of a PWM
17 controller, that supports one or more PWM devices. Client
18 drivers can request PWM devices and use the generic framework
19 to configure as well as enable and disable them.
20
21 This generic framework replaces the legacy PWM framework which
22 allows only a single driver implementing the required API. Not
23 all legacy implementations have been ported to the framework
24 yet. The framework provides an API that is backward compatible
25 with the legacy framework so that existing client drivers
26 continue to work as expected.
27
28 If unsure, say no.
Sascha Hauer0c2498f2011-01-28 09:40:40 +010029
30if PWM
31
Thierry Reding6173f8f2012-08-31 11:46:24 +020032config PWM_AB8500
33 tristate "AB8500 PWM support"
34 depends on AB8500_CORE && ARCH_U8500
35 help
36 Generic PWM framework driver for Analog Baseband AB8500.
37
38 To compile this driver as a module, choose M here: the module
39 will be called pwm-ab8500.
40
Thierry Redinga4315e32012-01-02 20:53:50 +010041config PWM_BFIN
42 tristate "Blackfin PWM support"
43 depends on BFIN_GPTIMERS
44 help
45 Generic PWM framework driver for Blackfin.
46
47 To compile this driver as a module, choose M here: the module
48 will be called pwm-bfin.
49
Sascha Hauer29693242012-03-15 10:04:35 +010050config PWM_IMX
51 tristate "i.MX pwm support"
52 depends on ARCH_MXC
53 help
54 Generic PWM framework driver for i.MX.
55
56 To compile this driver as a module, choose M here: the module
57 will be called pwm-imx.
58
Alexandre Pereira da Silva2132fa82012-07-10 11:38:10 -030059config PWM_LPC32XX
60 tristate "LPC32XX PWM support"
61 depends on ARCH_LPC32XX
62 help
63 Generic PWM framework driver for LPC32XX. The LPC32XX SOC has two
64 PWM controllers.
65
66 To compile this driver as a module, choose M here: the module
67 will be called pwm-lpc32xx.
68
Shawn Guo4dce82c2012-04-04 10:50:52 +080069config PWM_MXS
70 tristate "Freescale MXS PWM support"
71 depends on ARCH_MXS && OF
Shawn Guo01bf32e2012-06-26 16:58:09 +080072 select STMP_DEVICE
Shawn Guo4dce82c2012-04-04 10:50:52 +080073 help
74 Generic PWM framework driver for Freescale MXS.
75
76 To compile this driver as a module, choose M here: the module
77 will be called pwm-mxs.
78
Thierry Reding79c11b62012-08-31 08:29:24 +020079config PWM_PUV3
80 tristate "PKUnity NetBook-0916 PWM support"
81 depends on ARCH_PUV3
82 help
83 Generic PWM framework driver for PKUnity NetBook-0916.
84
85 To compile this driver as a module, choose M here: the module
86 will be called pwm-puv3.
87
Thierry Reding17b2b472012-01-02 21:22:38 +010088config PWM_PXA
89 tristate "PXA PWM support"
90 depends on ARCH_PXA
91 help
92 Generic PWM framework driver for PXA.
93
94 To compile this driver as a module, choose M here: the module
95 will be called pwm-pxa.
96
Sascha Hauer215c29d2012-03-15 10:04:36 +010097config PWM_SAMSUNG
98 tristate "Samsung pwm support"
99 depends on PLAT_SAMSUNG
100 help
101 Generic PWM framework driver for Samsung.
102
103 To compile this driver as a module, choose M here: the module
104 will be called pwm-samsung.
105
Thierry Reding0134b932011-12-21 07:47:07 +0100106config PWM_TEGRA
107 tristate "NVIDIA Tegra PWM support"
108 depends on ARCH_TEGRA
109 help
110 Generic PWM framework driver for the PWFM controller found on NVIDIA
111 Tegra SoCs.
112
113 To compile this driver as a module, choose M here: the module
114 will be called pwm-tegra.
115
Philip, Avinash8e0cb052012-07-25 16:58:18 +0530116config PWM_TIECAP
117 tristate "ECAP PWM support"
118 depends on SOC_AM33XX
119 help
120 PWM driver support for the ECAP APWM controller found on AM33XX
121 TI SOC
122
123 To compile this driver as a module, choose M here: the module
124 will be called pwm-tiecap.
125
Philip, Avinash19891b22012-07-25 16:58:19 +0530126config PWM_TIEHRPWM
127 tristate "EHRPWM PWM support"
128 depends on SOC_AM33XX
129 help
130 PWM driver support for the EHRPWM controller found on AM33XX
131 TI SOC
132
133 To compile this driver as a module, choose M here: the module
134 will be called pwm-tiehrpwm.
135
Sascha Hauera245cce2012-03-15 10:04:37 +0100136config PWM_VT8500
137 tristate "vt8500 pwm support"
138 depends on ARCH_VT8500
139 help
140 Generic PWM framework driver for vt8500.
141
142 To compile this driver as a module, choose M here: the module
143 will be called pwm-vt8500.
144
Sascha Hauer0c2498f2011-01-28 09:40:40 +0100145endif