diff options
author | Simon Glass <sjg@chromium.org> | 2016-01-21 19:43:31 -0700 |
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committer | Simon Glass <sjg@chromium.org> | 2016-01-21 20:42:34 -0700 |
commit | 5fd6badbd265ef45d3e1faebe5868426ab69595c (patch) | |
tree | 51aa4fe2fb3d0af4e3fb80a1cd1ed4ceb6a8f7c8 /drivers/misc/pwrseq-uclass.c | |
parent | e1227764cdbcd397728e95de1662c2b9e967d5fe (diff) |
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 <sjg@chromium.org>
Diffstat (limited to 'drivers/misc/pwrseq-uclass.c')
-rw-r--r-- | drivers/misc/pwrseq-uclass.c | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/drivers/misc/pwrseq-uclass.c b/drivers/misc/pwrseq-uclass.c new file mode 100644 index 00000000000..8ed2ad4f930 --- /dev/null +++ b/drivers/misc/pwrseq-uclass.c @@ -0,0 +1,24 @@ +/* + * Copyright (c) 2015 Google, Inc + * + * SPDX-License-Identifier: GPL-2.0+ + */ + +#include <common.h> +#include <dm.h> +#include <pwrseq.h> + +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", +}; |