Kconfig (f68ec0c24755e5cdb779be6240925f2175311d84) Kconfig (e9d359471dfed51a1bdeaa484ee7dac0679d0a20)
1#
2# GPIO infrastructure and expanders
3#
4
5config ARCH_WANT_OPTIONAL_GPIOLIB
6 bool
7 help
8 Select this config option from the architecture Kconfig, if

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122 Your board setup code will need to declare the expanders in
123 use, and assign numbers to the GPIOs they expose. Those GPIOs
124 can then be used from drivers and other kernel code, just like
125 other GPIOs, but only accessible from task contexts.
126
127 This driver provides an in-kernel interface to those GPIOs using
128 platform-neutral GPIO calls.
129
1#
2# GPIO infrastructure and expanders
3#
4
5config ARCH_WANT_OPTIONAL_GPIOLIB
6 bool
7 help
8 Select this config option from the architecture Kconfig, if

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122 Your board setup code will need to declare the expanders in
123 use, and assign numbers to the GPIOs they expose. Those GPIOs
124 can then be used from drivers and other kernel code, just like
125 other GPIOs, but only accessible from task contexts.
126
127 This driver provides an in-kernel interface to those GPIOs using
128 platform-neutral GPIO calls.
129
130config GPIO_TWL4030
131 tristate "TWL4030, TWL5030, and TPS659x0 GPIOs"
132 depends on TWL4030_CORE
133 help
134 Say yes here to access the GPIO signals of various multi-function
135 power management chips from Texas Instruments.
136
130comment "PCI GPIO expanders:"
131
132config GPIO_BT8XX
133 tristate "BT8XX GPIO abuser"
134 depends on PCI && VIDEO_BT848=n
135 help
136 The BT8xx frame grabber chip has 24 GPIO pins than can be abused
137 as a cheap PCI GPIO card.

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137comment "PCI GPIO expanders:"
138
139config GPIO_BT8XX
140 tristate "BT8XX GPIO abuser"
141 depends on PCI && VIDEO_BT848=n
142 help
143 The BT8xx frame grabber chip has 24 GPIO pins than can be abused
144 as a cheap PCI GPIO card.

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