From 5fd6badbd265ef45d3e1faebe5868426ab69595c Mon Sep 17 00:00:00 2001 From: Simon Glass Date: Thu, 21 Jan 2016 19:43:31 -0700 Subject: dm: Add a power sequencing uclass Some devices need special sequences to be used when starting up. Add a uclass for this. Drivers can be added to provide specific features as needed. Signed-off-by: Simon Glass --- drivers/misc/pwrseq-uclass.c | 24 ++++++++++++++++++++++++ 1 file changed, 24 insertions(+) create mode 100644 drivers/misc/pwrseq-uclass.c (limited to 'drivers/misc/pwrseq-uclass.c') diff --git a/drivers/misc/pwrseq-uclass.c b/drivers/misc/pwrseq-uclass.c new file mode 100644 index 0000000..8ed2ad4 --- /dev/null +++ b/drivers/misc/pwrseq-uclass.c @@ -0,0 +1,24 @@ +/* + * Copyright (c) 2015 Google, Inc + * + * SPDX-License-Identifier: GPL-2.0+ + */ + +#include +#include +#include + +int pwrseq_set_power(struct udevice *dev, bool enable) +{ + struct pwrseq_ops *ops = pwrseq_get_ops(dev); + + if (!ops->set_power) + return -ENOSYS; + + return ops->set_power(dev, enable); +} + +UCLASS_DRIVER(pwrseq) = { + .id = UCLASS_PWRSEQ, + .name = "pwrseq", +}; -- cgit v1.1