u-boot/drivers/phy/phy-uclass.c
Tom Rini 83d290c56f SPDX: Convert all of our single license tags to Linux Kernel style
When U-Boot started using SPDX tags we were among the early adopters and
there weren't a lot of other examples to borrow from.  So we picked the
area of the file that usually had a full license text and replaced it
with an appropriate SPDX-License-Identifier: entry.  Since then, the
Linux Kernel has adopted SPDX tags and they place it as the very first
line in a file (except where shebangs are used, then it's second line)
and with slightly different comment styles than us.

In part due to community overlap, in part due to better tag visibility
and in part for other minor reasons, switch over to that style.

This commit changes all instances where we have a single declared
license in the tag as both the before and after are identical in tag
contents.  There's also a few places where I found we did not have a tag
and have introduced one.

Signed-off-by: Tom Rini <trini@konsulko.com>
2018-05-07 09:34:12 -04:00

134 lines
2.7 KiB
C

// SPDX-License-Identifier: GPL-2.0+
/*
* Copyright (C) 2017 Texas Instruments Incorporated - http://www.ti.com/
* Written by Jean-Jacques Hiblot <jjhiblot@ti.com>
*/
#include <common.h>
#include <dm.h>
#include <generic-phy.h>
static inline struct phy_ops *phy_dev_ops(struct udevice *dev)
{
return (struct phy_ops *)dev->driver->ops;
}
static int generic_phy_xlate_offs_flags(struct phy *phy,
struct ofnode_phandle_args *args)
{
debug("%s(phy=%p)\n", __func__, phy);
if (args->args_count > 1) {
debug("Invaild args_count: %d\n", args->args_count);
return -EINVAL;
}
if (args->args_count)
phy->id = args->args[0];
else
phy->id = 0;
return 0;
}
int generic_phy_get_by_index(struct udevice *dev, int index,
struct phy *phy)
{
struct ofnode_phandle_args args;
struct phy_ops *ops;
int ret;
struct udevice *phydev;
debug("%s(dev=%p, index=%d, phy=%p)\n", __func__, dev, index, phy);
assert(phy);
phy->dev = NULL;
ret = dev_read_phandle_with_args(dev, "phys", "#phy-cells", 0, index,
&args);
if (ret) {
debug("%s: dev_read_phandle_with_args failed: err=%d\n",
__func__, ret);
return ret;
}
ret = uclass_get_device_by_ofnode(UCLASS_PHY, args.node, &phydev);
if (ret) {
debug("%s: uclass_get_device_by_ofnode failed: err=%d\n",
__func__, ret);
return ret;
}
phy->dev = phydev;
ops = phy_dev_ops(phydev);
if (ops->of_xlate)
ret = ops->of_xlate(phy, &args);
else
ret = generic_phy_xlate_offs_flags(phy, &args);
if (ret) {
debug("of_xlate() failed: %d\n", ret);
goto err;
}
return 0;
err:
return ret;
}
int generic_phy_get_by_name(struct udevice *dev, const char *phy_name,
struct phy *phy)
{
int index;
debug("%s(dev=%p, name=%s, phy=%p)\n", __func__, dev, phy_name, phy);
index = dev_read_stringlist_search(dev, "phy-names", phy_name);
if (index < 0) {
debug("dev_read_stringlist_search() failed: %d\n", index);
return index;
}
return generic_phy_get_by_index(dev, index, phy);
}
int generic_phy_init(struct phy *phy)
{
struct phy_ops const *ops = phy_dev_ops(phy->dev);
return ops->init ? ops->init(phy) : 0;
}
int generic_phy_reset(struct phy *phy)
{
struct phy_ops const *ops = phy_dev_ops(phy->dev);
return ops->reset ? ops->reset(phy) : 0;
}
int generic_phy_exit(struct phy *phy)
{
struct phy_ops const *ops = phy_dev_ops(phy->dev);
return ops->exit ? ops->exit(phy) : 0;
}
int generic_phy_power_on(struct phy *phy)
{
struct phy_ops const *ops = phy_dev_ops(phy->dev);
return ops->power_on ? ops->power_on(phy) : 0;
}
int generic_phy_power_off(struct phy *phy)
{
struct phy_ops const *ops = phy_dev_ops(phy->dev);
return ops->power_off ? ops->power_off(phy) : 0;
}
UCLASS_DRIVER(phy) = {
.id = UCLASS_PHY,
.name = "phy",
};