u-boot/drivers/phy/sandbox-phy.c
Patrice Chotard cfa3ed4390 sandbox: phy: add driver_data for bind test cmd
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>
2020-08-22 07:58:39 -06:00

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),
};