mirror of
https://github.com/brain-hackers/u-boot-brain
synced 2024-07-06 11:16:15 +09:00
b02e4044ff
These have now landed upstream. The naming is different and in one case the function signature has changed. Update the code to match. This applies the following upstream commits by Thierry Reding <treding@nvidia.com> : 604e61e fdt: Add functions to retrieve strings 8702bd1 fdt: Add a function to get the index of a string 2218387 fdt: Add a function to count strings Signed-off-by: Simon Glass <sjg@chromium.org>
132 lines
2.8 KiB
C
132 lines
2.8 KiB
C
/*
|
|
* Copyright (c) 2016, NVIDIA CORPORATION.
|
|
*
|
|
* SPDX-License-Identifier: GPL-2.0
|
|
*/
|
|
|
|
#include <common.h>
|
|
#include <dm.h>
|
|
#include <fdtdec.h>
|
|
#include <reset.h>
|
|
#include <reset-uclass.h>
|
|
|
|
DECLARE_GLOBAL_DATA_PTR;
|
|
|
|
static inline struct reset_ops *reset_dev_ops(struct udevice *dev)
|
|
{
|
|
return (struct reset_ops *)dev->driver->ops;
|
|
}
|
|
|
|
static int reset_of_xlate_default(struct reset_ctl *reset_ctl,
|
|
struct fdtdec_phandle_args *args)
|
|
{
|
|
debug("%s(reset_ctl=%p)\n", __func__, reset_ctl);
|
|
|
|
if (args->args_count != 1) {
|
|
debug("Invaild args_count: %d\n", args->args_count);
|
|
return -EINVAL;
|
|
}
|
|
|
|
reset_ctl->id = args->args[0];
|
|
|
|
return 0;
|
|
}
|
|
|
|
int reset_get_by_index(struct udevice *dev, int index,
|
|
struct reset_ctl *reset_ctl)
|
|
{
|
|
struct fdtdec_phandle_args args;
|
|
int ret;
|
|
struct udevice *dev_reset;
|
|
struct reset_ops *ops;
|
|
|
|
debug("%s(dev=%p, index=%d, reset_ctl=%p)\n", __func__, dev, index,
|
|
reset_ctl);
|
|
|
|
ret = fdtdec_parse_phandle_with_args(gd->fdt_blob, dev->of_offset,
|
|
"resets", "#reset-cells", 0,
|
|
index, &args);
|
|
if (ret) {
|
|
debug("%s: fdtdec_parse_phandle_with_args failed: %d\n",
|
|
__func__, ret);
|
|
return ret;
|
|
}
|
|
|
|
ret = uclass_get_device_by_of_offset(UCLASS_RESET, args.node,
|
|
&dev_reset);
|
|
if (ret) {
|
|
debug("%s: uclass_get_device_by_of_offset failed: %d\n",
|
|
__func__, ret);
|
|
return ret;
|
|
}
|
|
ops = reset_dev_ops(dev_reset);
|
|
|
|
reset_ctl->dev = dev_reset;
|
|
if (ops->of_xlate)
|
|
ret = ops->of_xlate(reset_ctl, &args);
|
|
else
|
|
ret = reset_of_xlate_default(reset_ctl, &args);
|
|
if (ret) {
|
|
debug("of_xlate() failed: %d\n", ret);
|
|
return ret;
|
|
}
|
|
|
|
ret = ops->request(reset_ctl);
|
|
if (ret) {
|
|
debug("ops->request() failed: %d\n", ret);
|
|
return ret;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
int reset_get_by_name(struct udevice *dev, const char *name,
|
|
struct reset_ctl *reset_ctl)
|
|
{
|
|
int index;
|
|
|
|
debug("%s(dev=%p, name=%s, reset_ctl=%p)\n", __func__, dev, name,
|
|
reset_ctl);
|
|
|
|
index = fdt_stringlist_search(gd->fdt_blob, dev->of_offset,
|
|
"reset-names", name);
|
|
if (index < 0) {
|
|
debug("fdt_stringlist_search() failed: %d\n", index);
|
|
return index;
|
|
}
|
|
|
|
return reset_get_by_index(dev, index, reset_ctl);
|
|
}
|
|
|
|
int reset_free(struct reset_ctl *reset_ctl)
|
|
{
|
|
struct reset_ops *ops = reset_dev_ops(reset_ctl->dev);
|
|
|
|
debug("%s(reset_ctl=%p)\n", __func__, reset_ctl);
|
|
|
|
return ops->free(reset_ctl);
|
|
}
|
|
|
|
int reset_assert(struct reset_ctl *reset_ctl)
|
|
{
|
|
struct reset_ops *ops = reset_dev_ops(reset_ctl->dev);
|
|
|
|
debug("%s(reset_ctl=%p)\n", __func__, reset_ctl);
|
|
|
|
return ops->rst_assert(reset_ctl);
|
|
}
|
|
|
|
int reset_deassert(struct reset_ctl *reset_ctl)
|
|
{
|
|
struct reset_ops *ops = reset_dev_ops(reset_ctl->dev);
|
|
|
|
debug("%s(reset_ctl=%p)\n", __func__, reset_ctl);
|
|
|
|
return ops->rst_deassert(reset_ctl);
|
|
}
|
|
|
|
UCLASS_DRIVER(reset) = {
|
|
.id = UCLASS_RESET,
|
|
.name = "reset",
|
|
};
|