mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-12-26 20:25:28 +07:00
76eff170bb
In device tree environment, the previous code allocates renesas_usbhs_platform_info by using devm_kzalloc() and then copies usbhs_of_data to the allocated memory. This reason is some values (e.g. .platform_callback.get_vbus) are overwritten by the driver, but the of_device_id.data is "const". Now the driver doesn't have such a code, so this patch uses renesas_usbhs_platform_info on of_device_id.data. Note that the previous code set the pdev->dev.platform_data pointer even if device tree environment, but the value is not used. So, this patch also remove such a code. Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
75 lines
1.6 KiB
C
75 lines
1.6 KiB
C
// SPDX-License-Identifier: GPL-2.0
|
|
/*
|
|
* Renesas USB driver RZ/A2 initialization and power control
|
|
*
|
|
* Copyright (C) 2019 Chris Brandt
|
|
* Copyright (C) 2019 Renesas Electronics Corporation
|
|
*/
|
|
|
|
#include <linux/delay.h>
|
|
#include <linux/io.h>
|
|
#include <linux/of_device.h>
|
|
#include <linux/phy/phy.h>
|
|
#include "common.h"
|
|
#include "rza.h"
|
|
|
|
static int usbhs_rza2_hardware_init(struct platform_device *pdev)
|
|
{
|
|
struct usbhs_priv *priv = usbhs_pdev_to_priv(pdev);
|
|
struct phy *phy = phy_get(&pdev->dev, "usb");
|
|
|
|
if (IS_ERR(phy))
|
|
return PTR_ERR(phy);
|
|
|
|
priv->phy = phy;
|
|
return 0;
|
|
}
|
|
|
|
static int usbhs_rza2_hardware_exit(struct platform_device *pdev)
|
|
{
|
|
struct usbhs_priv *priv = usbhs_pdev_to_priv(pdev);
|
|
|
|
phy_put(priv->phy);
|
|
priv->phy = NULL;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int usbhs_rza2_power_ctrl(struct platform_device *pdev,
|
|
void __iomem *base, int enable)
|
|
{
|
|
struct usbhs_priv *priv = usbhs_pdev_to_priv(pdev);
|
|
int retval = 0;
|
|
|
|
if (!priv->phy)
|
|
return -ENODEV;
|
|
|
|
if (enable) {
|
|
retval = phy_init(priv->phy);
|
|
usbhs_bset(priv, SUSPMODE, SUSPM, SUSPM);
|
|
udelay(100); /* Wait for PLL to become stable */
|
|
if (!retval)
|
|
retval = phy_power_on(priv->phy);
|
|
} else {
|
|
usbhs_bset(priv, SUSPMODE, SUSPM, 0);
|
|
phy_power_off(priv->phy);
|
|
phy_exit(priv->phy);
|
|
}
|
|
|
|
return retval;
|
|
}
|
|
|
|
const struct renesas_usbhs_platform_info usbhs_rza2_plat_info = {
|
|
.platform_callback = {
|
|
.hardware_init = usbhs_rza2_hardware_init,
|
|
.hardware_exit = usbhs_rza2_hardware_exit,
|
|
.power_ctrl = usbhs_rza2_power_ctrl,
|
|
.get_id = usbhs_get_id_as_gadget,
|
|
},
|
|
.driver_param = {
|
|
.has_cnen = 1,
|
|
.cfifo_byte_addr = 1,
|
|
.has_new_pipe_configs = 1,
|
|
},
|
|
};
|