Kconfig (f68ec0c24755e5cdb779be6240925f2175311d84) | Kconfig (e9d359471dfed51a1bdeaa484ee7dac0679d0a20) |
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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 --- 113 unchanged lines hidden (view full) --- 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 --- 113 unchanged lines hidden (view full) --- 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 |
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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. --- 26 unchanged lines hidden --- | 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. --- 26 unchanged lines hidden --- |