mirror of
https://github.com/edk2-porting/linux-next.git
synced 2024-12-22 12:14:01 +08:00
usb: phy: Remove the phy-rcar-gen2-usb driver
The phy-rcar-gen2-usb driver, which supports legacy platform data only, is no longer used since commita483dcbfa2("ARM: shmobile: lager: Remove legacy board support"). This driver was superseded by the DT-only phy-rcar-gen2 driver, which was introduced in commit1233f59f74("phy: Renesas R-Car Gen2 PHY driver"). Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Geert Uytterhoeven
Greg Kroah-Hartman
parent
0efd937e27
commit
34ef33f7da
@ -186,19 +186,6 @@ config USB_RCAR_PHY
|
||||
To compile this driver as a module, choose M here: the
|
||||
module will be called phy-rcar-usb.
|
||||
|
||||
config USB_RCAR_GEN2_PHY
|
||||
tristate "Renesas R-Car Gen2 USB PHY support"
|
||||
depends on ARCH_R8A7790 || ARCH_R8A7791 || COMPILE_TEST
|
||||
select USB_PHY
|
||||
help
|
||||
Say Y here to add support for the Renesas R-Car Gen2 USB PHY driver.
|
||||
It is typically used to control internal USB PHY for USBHS,
|
||||
and to configure shared USB channels 0 and 2.
|
||||
This driver supports R8A7790 and R8A7791.
|
||||
|
||||
To compile this driver as a module, choose M here: the
|
||||
module will be called phy-rcar-gen2-usb.
|
||||
|
||||
config USB_ULPI
|
||||
bool "Generic ULPI Transceiver Driver"
|
||||
depends on ARM || ARM64
|
||||
|
||||
@ -23,7 +23,6 @@ obj-$(CONFIG_USB_MSM_OTG) += phy-msm-usb.o
|
||||
obj-$(CONFIG_USB_MV_OTG) += phy-mv-usb.o
|
||||
obj-$(CONFIG_USB_MXS_PHY) += phy-mxs-usb.o
|
||||
obj-$(CONFIG_USB_RCAR_PHY) += phy-rcar-usb.o
|
||||
obj-$(CONFIG_USB_RCAR_GEN2_PHY) += phy-rcar-gen2-usb.o
|
||||
obj-$(CONFIG_USB_ULPI) += phy-ulpi.o
|
||||
obj-$(CONFIG_USB_ULPI_VIEWPORT) += phy-ulpi-viewport.o
|
||||
obj-$(CONFIG_KEYSTONE_USB_PHY) += phy-keystone.o
|
||||
|
||||
@ -1,246 +0,0 @@
|
||||
/*
|
||||
* Renesas R-Car Gen2 USB phy driver
|
||||
*
|
||||
* Copyright (C) 2013 Renesas Solutions Corp.
|
||||
* Copyright (C) 2013 Cogent Embedded, Inc.
|
||||
*
|
||||
* This program is free software; you can redistribute it and/or modify
|
||||
* it under the terms of the GNU General Public License version 2 as
|
||||
* published by the Free Software Foundation.
|
||||
*/
|
||||
|
||||
#include <linux/clk.h>
|
||||
#include <linux/delay.h>
|
||||
#include <linux/io.h>
|
||||
#include <linux/module.h>
|
||||
#include <linux/platform_data/usb-rcar-gen2-phy.h>
|
||||
#include <linux/platform_device.h>
|
||||
#include <linux/spinlock.h>
|
||||
#include <linux/usb/otg.h>
|
||||
|
||||
struct rcar_gen2_usb_phy_priv {
|
||||
struct usb_phy phy;
|
||||
void __iomem *base;
|
||||
struct clk *clk;
|
||||
spinlock_t lock;
|
||||
int usecount;
|
||||
u32 ugctrl2;
|
||||
};
|
||||
|
||||
#define usb_phy_to_priv(p) container_of(p, struct rcar_gen2_usb_phy_priv, phy)
|
||||
|
||||
/* Low Power Status register */
|
||||
#define USBHS_LPSTS_REG 0x02
|
||||
#define USBHS_LPSTS_SUSPM (1 << 14)
|
||||
|
||||
/* USB General control register */
|
||||
#define USBHS_UGCTRL_REG 0x80
|
||||
#define USBHS_UGCTRL_CONNECT (1 << 2)
|
||||
#define USBHS_UGCTRL_PLLRESET (1 << 0)
|
||||
|
||||
/* USB General control register 2 */
|
||||
#define USBHS_UGCTRL2_REG 0x84
|
||||
#define USBHS_UGCTRL2_USB0_PCI (1 << 4)
|
||||
#define USBHS_UGCTRL2_USB0_HS (3 << 4)
|
||||
#define USBHS_UGCTRL2_USB2_PCI (0 << 31)
|
||||
#define USBHS_UGCTRL2_USB2_SS (1 << 31)
|
||||
|
||||
/* USB General status register */
|
||||
#define USBHS_UGSTS_REG 0x88
|
||||
#define USBHS_UGSTS_LOCK (1 << 8)
|
||||
|
||||
/* Enable USBHS internal phy */
|
||||
static int __rcar_gen2_usbhs_phy_enable(void __iomem *base)
|
||||
{
|
||||
u32 val;
|
||||
int i;
|
||||
|
||||
/* USBHS PHY power on */
|
||||
val = ioread32(base + USBHS_UGCTRL_REG);
|
||||
val &= ~USBHS_UGCTRL_PLLRESET;
|
||||
iowrite32(val, base + USBHS_UGCTRL_REG);
|
||||
|
||||
val = ioread16(base + USBHS_LPSTS_REG);
|
||||
val |= USBHS_LPSTS_SUSPM;
|
||||
iowrite16(val, base + USBHS_LPSTS_REG);
|
||||
|
||||
for (i = 0; i < 20; i++) {
|
||||
val = ioread32(base + USBHS_UGSTS_REG);
|
||||
if ((val & USBHS_UGSTS_LOCK) == USBHS_UGSTS_LOCK) {
|
||||
val = ioread32(base + USBHS_UGCTRL_REG);
|
||||
val |= USBHS_UGCTRL_CONNECT;
|
||||
iowrite32(val, base + USBHS_UGCTRL_REG);
|
||||
return 0;
|
||||
}
|
||||
udelay(1);
|
||||
}
|
||||
|
||||
/* Timed out waiting for the PLL lock */
|
||||
return -ETIMEDOUT;
|
||||
}
|
||||
|
||||
/* Disable USBHS internal phy */
|
||||
static int __rcar_gen2_usbhs_phy_disable(void __iomem *base)
|
||||
{
|
||||
u32 val;
|
||||
|
||||
/* USBHS PHY power off */
|
||||
val = ioread32(base + USBHS_UGCTRL_REG);
|
||||
val &= ~USBHS_UGCTRL_CONNECT;
|
||||
iowrite32(val, base + USBHS_UGCTRL_REG);
|
||||
|
||||
val = ioread16(base + USBHS_LPSTS_REG);
|
||||
val &= ~USBHS_LPSTS_SUSPM;
|
||||
iowrite16(val, base + USBHS_LPSTS_REG);
|
||||
|
||||
val = ioread32(base + USBHS_UGCTRL_REG);
|
||||
val |= USBHS_UGCTRL_PLLRESET;
|
||||
iowrite32(val, base + USBHS_UGCTRL_REG);
|
||||
return 0;
|
||||
}
|
||||
|
||||
/* Setup USB channels */
|
||||
static void __rcar_gen2_usb_phy_init(struct rcar_gen2_usb_phy_priv *priv)
|
||||
{
|
||||
u32 val;
|
||||
|
||||
clk_prepare_enable(priv->clk);
|
||||
|
||||
/* Set USB channels in the USBHS UGCTRL2 register */
|
||||
val = ioread32(priv->base + USBHS_UGCTRL2_REG);
|
||||
val &= ~(USBHS_UGCTRL2_USB0_HS | USBHS_UGCTRL2_USB2_SS);
|
||||
val |= priv->ugctrl2;
|
||||
iowrite32(val, priv->base + USBHS_UGCTRL2_REG);
|
||||
}
|
||||
|
||||
/* Shutdown USB channels */
|
||||
static void __rcar_gen2_usb_phy_shutdown(struct rcar_gen2_usb_phy_priv *priv)
|
||||
{
|
||||
__rcar_gen2_usbhs_phy_disable(priv->base);
|
||||
clk_disable_unprepare(priv->clk);
|
||||
}
|
||||
|
||||
static int rcar_gen2_usb_phy_set_suspend(struct usb_phy *phy, int suspend)
|
||||
{
|
||||
struct rcar_gen2_usb_phy_priv *priv = usb_phy_to_priv(phy);
|
||||
unsigned long flags;
|
||||
int retval;
|
||||
|
||||
spin_lock_irqsave(&priv->lock, flags);
|
||||
retval = suspend ? __rcar_gen2_usbhs_phy_disable(priv->base) :
|
||||
__rcar_gen2_usbhs_phy_enable(priv->base);
|
||||
spin_unlock_irqrestore(&priv->lock, flags);
|
||||
return retval;
|
||||
}
|
||||
|
||||
static int rcar_gen2_usb_phy_init(struct usb_phy *phy)
|
||||
{
|
||||
struct rcar_gen2_usb_phy_priv *priv = usb_phy_to_priv(phy);
|
||||
unsigned long flags;
|
||||
|
||||
spin_lock_irqsave(&priv->lock, flags);
|
||||
/*
|
||||
* Enable the clock and setup USB channels
|
||||
* if it's the first user
|
||||
*/
|
||||
if (!priv->usecount++)
|
||||
__rcar_gen2_usb_phy_init(priv);
|
||||
spin_unlock_irqrestore(&priv->lock, flags);
|
||||
return 0;
|
||||
}
|
||||
|
||||
static void rcar_gen2_usb_phy_shutdown(struct usb_phy *phy)
|
||||
{
|
||||
struct rcar_gen2_usb_phy_priv *priv = usb_phy_to_priv(phy);
|
||||
unsigned long flags;
|
||||
|
||||
spin_lock_irqsave(&priv->lock, flags);
|
||||
if (!priv->usecount) {
|
||||
dev_warn(phy->dev, "Trying to disable phy with 0 usecount\n");
|
||||
goto out;
|
||||
}
|
||||
|
||||
/* Disable everything if it's the last user */
|
||||
if (!--priv->usecount)
|
||||
__rcar_gen2_usb_phy_shutdown(priv);
|
||||
out:
|
||||
spin_unlock_irqrestore(&priv->lock, flags);
|
||||
}
|
||||
|
||||
static int rcar_gen2_usb_phy_probe(struct platform_device *pdev)
|
||||
{
|
||||
struct device *dev = &pdev->dev;
|
||||
struct rcar_gen2_phy_platform_data *pdata;
|
||||
struct rcar_gen2_usb_phy_priv *priv;
|
||||
struct resource *res;
|
||||
void __iomem *base;
|
||||
struct clk *clk;
|
||||
int retval;
|
||||
|
||||
pdata = dev_get_platdata(dev);
|
||||
if (!pdata) {
|
||||
dev_err(dev, "No platform data\n");
|
||||
return -EINVAL;
|
||||
}
|
||||
|
||||
clk = devm_clk_get(dev, "usbhs");
|
||||
if (IS_ERR(clk)) {
|
||||
dev_err(dev, "Can't get the clock\n");
|
||||
return PTR_ERR(clk);
|
||||
}
|
||||
|
||||
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
|
||||
base = devm_ioremap_resource(dev, res);
|
||||
if (IS_ERR(base))
|
||||
return PTR_ERR(base);
|
||||
|
||||
priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL);
|
||||
if (!priv)
|
||||
return -ENOMEM;
|
||||
|
||||
spin_lock_init(&priv->lock);
|
||||
priv->clk = clk;
|
||||
priv->base = base;
|
||||
priv->ugctrl2 = pdata->chan0_pci ?
|
||||
USBHS_UGCTRL2_USB0_PCI : USBHS_UGCTRL2_USB0_HS;
|
||||
priv->ugctrl2 |= pdata->chan2_pci ?
|
||||
USBHS_UGCTRL2_USB2_PCI : USBHS_UGCTRL2_USB2_SS;
|
||||
priv->phy.dev = dev;
|
||||
priv->phy.label = dev_name(dev);
|
||||
priv->phy.init = rcar_gen2_usb_phy_init;
|
||||
priv->phy.shutdown = rcar_gen2_usb_phy_shutdown;
|
||||
priv->phy.set_suspend = rcar_gen2_usb_phy_set_suspend;
|
||||
|
||||
retval = usb_add_phy_dev(&priv->phy);
|
||||
if (retval < 0) {
|
||||
dev_err(dev, "Failed to add USB phy\n");
|
||||
return retval;
|
||||
}
|
||||
|
||||
platform_set_drvdata(pdev, priv);
|
||||
|
||||
return retval;
|
||||
}
|
||||
|
||||
static int rcar_gen2_usb_phy_remove(struct platform_device *pdev)
|
||||
{
|
||||
struct rcar_gen2_usb_phy_priv *priv = platform_get_drvdata(pdev);
|
||||
|
||||
usb_remove_phy(&priv->phy);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static struct platform_driver rcar_gen2_usb_phy_driver = {
|
||||
.driver = {
|
||||
.name = "usb_phy_rcar_gen2",
|
||||
},
|
||||
.probe = rcar_gen2_usb_phy_probe,
|
||||
.remove = rcar_gen2_usb_phy_remove,
|
||||
};
|
||||
|
||||
module_platform_driver(rcar_gen2_usb_phy_driver);
|
||||
|
||||
MODULE_LICENSE("GPL v2");
|
||||
MODULE_DESCRIPTION("Renesas R-Car Gen2 USB phy");
|
||||
MODULE_AUTHOR("Valentine Barshak <valentine.barshak@cogentembedded.com>");
|
||||
@ -1,22 +0,0 @@
|
||||
/*
|
||||
* Copyright (C) 2013 Renesas Solutions Corp.
|
||||
* Copyright (C) 2013 Cogent Embedded, Inc.
|
||||
*
|
||||
* This program is free software; you can redistribute it and/or modify
|
||||
* it under the terms of the GNU General Public License version 2 as
|
||||
* published by the Free Software Foundation.
|
||||
*/
|
||||
|
||||
#ifndef __USB_RCAR_GEN2_PHY_H
|
||||
#define __USB_RCAR_GEN2_PHY_H
|
||||
|
||||
#include <linux/types.h>
|
||||
|
||||
struct rcar_gen2_phy_platform_data {
|
||||
/* USB channel 0 configuration */
|
||||
bool chan0_pci:1; /* true: PCI USB host 0, false: USBHS */
|
||||
/* USB channel 2 configuration */
|
||||
bool chan2_pci:1; /* true: PCI USB host 2, false: USBSS */
|
||||
};
|
||||
|
||||
#endif
|
||||
Loading…
Reference in New Issue
Block a user