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| author |   Cédric Le Goater <clg@kaod.org> | 2017-08-08 15:42:39 +0200 |
|---|---|---|
| committer |   Jacek Anaszewski <jacek.anaszewski@gmail.com> | 2017-08-14 22:22:37 +0200 |
| commit | 561099a1a2e992a482a8318c0c9c5af26222e5cd (patch) | |
| tree | 1fab407e2140c2efdb5e005a4302d576d6613d33 /Documentation/devicetree/bindings | |
| parent | leds: pca955x: use devm_led_classdev_register (diff) | |
| download | linux-dev-561099a1a2e992a482a8318c0c9c5af26222e5cd.tar.xz linux-dev-561099a1a2e992a482a8318c0c9c5af26222e5cd.zip | |
leds: pca955x: add GPIO support
The PCA955x family of chips are I2C LED blinkers whose pins not used
to control LEDs can be used as general purpose I/Os (GPIOs).
The following adds such a support by defining different operation
modes for the pins (See bindings documentation for more details). The
pca955x driver is then extended with a gpio_chip when some of pins are
operating as GPIOs. The default operating mode is to behave as a LED.
The GPIO support is conditioned by CONFIG_LEDS_PCA955X_GPIO.
Signed-off-by: Cédric Le Goater <clg@kaod.org>
Acked-by: Pavel Machek <pavel@ucw.cz>
Signed-off-by: Jacek Anaszewski <jacek.anaszewski@gmail.com>
Diffstat (limited to 'Documentation/devicetree/bindings')
0 files changed, 0 insertions, 0 deletions