From a02af4aeece40e93bc7d79cd5dc912409efb7020 Mon Sep 17 00:00:00 2001 From: Simon Glass Date: Mon, 5 Jan 2015 20:05:31 -0700 Subject: dm: demo: Add a simple GPIO demonstration Add a new 'demo light' command which uses GPIOs to control imaginary lights. Each light is assigned a bit number in the overall value. This provides an example driver for using the new GPIO API. Signed-off-by: Simon Glass --- drivers/demo/demo-uclass.c | 20 ++++++++++++++++++++ 1 file changed, 20 insertions(+) (limited to 'drivers/demo/demo-uclass.c') diff --git a/drivers/demo/demo-uclass.c b/drivers/demo/demo-uclass.c index f6510d6..725f068 100644 --- a/drivers/demo/demo-uclass.c +++ b/drivers/demo/demo-uclass.c @@ -43,6 +43,26 @@ int demo_status(struct udevice *dev, int *status) return ops->status(dev, status); } +int demo_get_light(struct udevice *dev) +{ + const struct demo_ops *ops = device_get_ops(dev); + + if (!ops->get_light) + return -ENOSYS; + + return ops->get_light(dev); +} + +int demo_set_light(struct udevice *dev, int light) +{ + const struct demo_ops *ops = device_get_ops(dev); + + if (!ops->set_light) + return -ENOSYS; + + return ops->set_light(dev, light); +} + int demo_parse_dt(struct udevice *dev) { struct dm_demo_pdata *pdata = dev_get_platdata(dev); -- cgit v1.1