hollalinux
/
linux-sg2042
mirror of https://github.com/sophgo/linux-riscv.git
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

USB: ohci: da8xx: use ohci priv data instead of globals 

Instead of global variables, use the extra_priv_size of
the ohci driver.

We cannot yet move the ocic mask because this is used on
the interrupt handler which is registered through platform
data and does not have an hcd pointer. This will be moved
on a later patch.

Tested-by: David Lechner <david@lechnology.com>
Signed-off-by: Axel Haslam <ahaslam@baylibre.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Axel Haslam 2016-11-23 19:06:45 +01:00 committed by Greg Kroah-Hartman
parent 9dd649c639
commit c7a4f9f35b
1 changed files with 44 additions and 31 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

75
drivers/usb/host/ohci-da8xx.c
View File

@ -35,43 +35,50 @@ static int (*orig_ohci_hub_control)(struct usb_hcd *hcd, u16 typeReq,
u16 wValue, u16 wIndex, char *buf, u16 wLength);
static int (*orig_ohci_hub_status_data)(struct usb_hcd *hcd, char *buf);
static struct clk *usb11_clk;
static struct phy *usb11_phy;
struct da8xx_ohci_hcd {
struct clk *usb11_clk;
struct phy *usb11_phy;
};
#define to_da8xx_ohci(hcd) (struct da8xx_ohci_hcd *)(hcd_to_ohci(hcd)->priv)
/* Over-current indicator change bitmask */
static volatile u16 ocic_mask;
static int ohci_da8xx_enable(void)
static int ohci_da8xx_enable(struct usb_hcd *hcd)
{
struct da8xx_ohci_hcd *da8xx_ohci = to_da8xx_ohci(hcd);
int ret;
ret = clk_prepare_enable(usb11_clk);
ret = clk_prepare_enable(da8xx_ohci->usb11_clk);
if (ret)
return ret;
ret = phy_init(usb11_phy);
ret = phy_init(da8xx_ohci->usb11_phy);
if (ret)
goto err_phy_init;
ret = phy_power_on(usb11_phy);
ret = phy_power_on(da8xx_ohci->usb11_phy);
if (ret)
goto err_phy_power_on;
return 0;
err_phy_power_on:
phy_exit(usb11_phy);
phy_exit(da8xx_ohci->usb11_phy);
err_phy_init:
clk_disable_unprepare(usb11_clk);
clk_disable_unprepare(da8xx_ohci->usb11_clk);
return ret;
}
static void ohci_da8xx_disable(void)
static void ohci_da8xx_disable(struct usb_hcd *hcd)
{
phy_power_off(usb11_phy);
phy_exit(usb11_phy);
clk_disable_unprepare(usb11_clk);
struct da8xx_ohci_hcd *da8xx_ohci = to_da8xx_ohci(hcd);
phy_power_off(da8xx_ohci->usb11_phy);
phy_exit(da8xx_ohci->usb11_phy);
clk_disable_unprepare(da8xx_ohci->usb11_clk);
}
/*
@ -97,7 +104,7 @@ static int ohci_da8xx_reset(struct usb_hcd *hcd)
dev_dbg(dev, "starting USB controller\n");
result = ohci_da8xx_enable();
result = ohci_da8xx_enable(hcd);
if (result < 0)
return result;
@ -109,7 +116,7 @@ static int ohci_da8xx_reset(struct usb_hcd *hcd)
result = ohci_setup(hcd);
if (result < 0) {
ohci_da8xx_disable();
ohci_da8xx_disable(hcd);
return result;
}
@ -231,6 +238,7 @@ check_port:
static int ohci_da8xx_probe(struct platform_device *pdev)
{
struct da8xx_ohci_root_hub *hub = dev_get_platdata(&pdev->dev);
struct da8xx_ohci_hcd *da8xx_ohci;
struct usb_hcd *hcd;
struct resource *mem;
int error, irq;
@ -238,25 +246,29 @@ static int ohci_da8xx_probe(struct platform_device *pdev)
if (hub == NULL)
return -ENODEV;
usb11_clk = devm_clk_get(&pdev->dev, "usb11");
if (IS_ERR(usb11_clk)) {
if (PTR_ERR(usb11_clk) != -EPROBE_DEFER)
dev_err(&pdev->dev, "Failed to get clock.\n");
return PTR_ERR(usb11_clk);
}
usb11_phy = devm_phy_get(&pdev->dev, "usb-phy");
if (IS_ERR(usb11_phy)) {
if (PTR_ERR(usb11_phy) != -EPROBE_DEFER)
dev_err(&pdev->dev, "Failed to get phy.\n");
return PTR_ERR(usb11_phy);
}
hcd = usb_create_hcd(&ohci_da8xx_hc_driver, &pdev->dev,
dev_name(&pdev->dev));
if (!hcd)
return -ENOMEM;
da8xx_ohci = to_da8xx_ohci(hcd);
da8xx_ohci->usb11_clk = devm_clk_get(&pdev->dev, "usb11");
if (IS_ERR(da8xx_ohci->usb11_clk)) {
error = PTR_ERR(da8xx_ohci->usb11_clk);
if (error != -EPROBE_DEFER)
dev_err(&pdev->dev, "Failed to get clock.\n");
goto err;
}
da8xx_ohci->usb11_phy = devm_phy_get(&pdev->dev, "usb-phy");
if (IS_ERR(da8xx_ohci->usb11_phy)) {
error = PTR_ERR(da8xx_ohci->usb11_phy);
if (error != -EPROBE_DEFER)
dev_err(&pdev->dev, "Failed to get phy.\n");
goto err;
}
mem = platform_get_resource(pdev, IORESOURCE_MEM, 0);
hcd->regs = devm_ioremap_resource(&pdev->dev, mem);
if (IS_ERR(hcd->regs)) {
@ -320,7 +332,7 @@ static int ohci_da8xx_suspend(struct platform_device *pdev,
if (ret)
return ret;
ohci_da8xx_disable();
ohci_da8xx_disable(hcd);
hcd->state = HC_STATE_SUSPENDED;
return ret;
@ -336,7 +348,7 @@ static int ohci_da8xx_resume(struct platform_device *dev)
msleep(5);
ohci->next_statechange = jiffies;
ret = ohci_da8xx_enable();
ret = ohci_da8xx_enable(hcd);
if (ret)
return ret;
@ -348,7 +360,8 @@ static int ohci_da8xx_resume(struct platform_device *dev)
#endif
static const struct ohci_driver_overrides da8xx_overrides __initconst = {
.reset = ohci_da8xx_reset,
.reset = ohci_da8xx_reset,
.extra_priv_size = sizeof(struct da8xx_ohci_hcd),
};
/*