mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-11-06 21:24:29 +00:00
cfa3ed4390
Add driver data to existing compatible string "sandbox,phy". Add an additional compatible string without driver_data This will verify that bind command parses, finds and passes the correct driver data to device_bind_with_driver_data() by using driver_data in the second sandbox_phy_ids table entry. In sandbox_phy_bind() a check is added to validate driver_data content. Signed-off-by: Patrice Chotard <patrice.chotard@st.com> Reviewed-by: Simon Glass <sjg@chromium.org>
120 lines
2.1 KiB
C
120 lines
2.1 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>
|
|
|
|
#define DRIVER_DATA 0x12345678
|
|
|
|
struct sandbox_phy_priv {
|
|
bool initialized;
|
|
bool on;
|
|
bool broken;
|
|
};
|
|
|
|
static int sandbox_phy_power_on(struct phy *phy)
|
|
{
|
|
struct sandbox_phy_priv *priv = dev_get_priv(phy->dev);
|
|
|
|
if (!priv->initialized)
|
|
return -EIO;
|
|
|
|
if (priv->broken)
|
|
return -EIO;
|
|
|
|
priv->on = true;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int sandbox_phy_power_off(struct phy *phy)
|
|
{
|
|
struct sandbox_phy_priv *priv = dev_get_priv(phy->dev);
|
|
|
|
if (!priv->initialized)
|
|
return -EIO;
|
|
|
|
if (priv->broken)
|
|
return -EIO;
|
|
|
|
/*
|
|
* for validation purpose, let's says that power off
|
|
* works only for PHY 0
|
|
*/
|
|
if (phy->id)
|
|
return -EIO;
|
|
|
|
priv->on = false;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int sandbox_phy_init(struct phy *phy)
|
|
{
|
|
struct sandbox_phy_priv *priv = dev_get_priv(phy->dev);
|
|
|
|
priv->initialized = true;
|
|
priv->on = true;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int sandbox_phy_exit(struct phy *phy)
|
|
{
|
|
struct sandbox_phy_priv *priv = dev_get_priv(phy->dev);
|
|
|
|
priv->initialized = false;
|
|
priv->on = false;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int sandbox_phy_bind(struct udevice *dev)
|
|
{
|
|
if (dev_get_driver_data(dev) != DRIVER_DATA)
|
|
return -ENODATA;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int sandbox_phy_probe(struct udevice *dev)
|
|
{
|
|
struct sandbox_phy_priv *priv = dev_get_priv(dev);
|
|
|
|
priv->initialized = false;
|
|
priv->on = false;
|
|
priv->broken = dev_read_bool(dev, "broken");
|
|
|
|
return 0;
|
|
}
|
|
|
|
static struct phy_ops sandbox_phy_ops = {
|
|
.power_on = sandbox_phy_power_on,
|
|
.power_off = sandbox_phy_power_off,
|
|
.init = sandbox_phy_init,
|
|
.exit = sandbox_phy_exit,
|
|
};
|
|
|
|
static const struct udevice_id sandbox_phy_ids[] = {
|
|
{ .compatible = "sandbox,phy_no_driver_data",
|
|
},
|
|
|
|
{ .compatible = "sandbox,phy",
|
|
.data = DRIVER_DATA
|
|
},
|
|
{ }
|
|
};
|
|
|
|
U_BOOT_DRIVER(phy_sandbox) = {
|
|
.name = "phy_sandbox",
|
|
.id = UCLASS_PHY,
|
|
.bind = sandbox_phy_bind,
|
|
.of_match = sandbox_phy_ids,
|
|
.ops = &sandbox_phy_ops,
|
|
.probe = sandbox_phy_probe,
|
|
.priv_auto_alloc_size = sizeof(struct sandbox_phy_priv),
|
|
};
|