openkylin
/
linux
mirror of https://gitee.com/openkylin/linux.git
9
0
Fork 0
Code Issues Projects Releases Wiki Activity

USB: EHCI: ehci-mv: add DT support 

Add Device tree support.

Signed-off-by: Lubomir Rintel <lkundrak@v3.sk>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Lubomir Rintel 2018-08-22 22:43:04 +02:00 committed by Greg Kroah-Hartman
parent a740f20d13
commit 813e18b18a
1 changed files with 23 additions and 18 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

41
drivers/usb/host/ehci-mv.c
View File

@ -34,11 +34,11 @@ struct ehci_hcd_mv {
void __iomem *op_regs;
struct usb_phy *otg;
struct clk *clk;
struct mv_usb_platform_data *pdata;
struct phy *phy;
struct clk *clk;
int (*set_vbus)(unsigned int vbus);
};
static void ehci_clock_enable(struct ehci_hcd_mv *ehci_mv)
@ -100,11 +100,6 @@ static int mv_ehci_probe(struct platform_device *pdev)
int retval = -ENODEV;
u32 offset;
if (!pdata) {
dev_err(&pdev->dev, "missing platform_data\n");
return -ENODEV;
}
if (usb_disabled())
return -ENODEV;
@ -114,7 +109,12 @@ static int mv_ehci_probe(struct platform_device *pdev)
platform_set_drvdata(pdev, hcd);
ehci_mv = hcd_to_ehci_hcd_mv(hcd);
ehci_mv->pdata = pdata;
ehci_mv->mode = MV_USB_MODE_HOST;
if (pdata) {
ehci_mv->mode = pdata->mode;
ehci_mv->set_vbus = pdata->set_vbus;
}
ehci_mv->phy = devm_phy_get(&pdev->dev, "usb");
if (IS_ERR(ehci_mv->phy)) {
@ -166,7 +166,6 @@ static int mv_ehci_probe(struct platform_device *pdev)
ehci = hcd_to_ehci(hcd);
ehci->caps = (struct ehci_caps *) ehci_mv->cap_regs;
ehci_mv->mode = pdata->mode;
if (ehci_mv->mode == MV_USB_MODE_OTG) {
ehci_mv->otg = devm_usb_get_phy(&pdev->dev, USB_PHY_TYPE_USB2);
if (IS_ERR(ehci_mv->otg)) {
@ -191,8 +190,8 @@ static int mv_ehci_probe(struct platform_device *pdev)
/* otg will enable clock before use as host */
mv_ehci_disable(ehci_mv);
} else {
if (pdata->set_vbus)
pdata->set_vbus(1);
if (ehci_mv->set_vbus)
ehci_mv->set_vbus(1);
retval = usb_add_hcd(hcd, hcd->irq, IRQF_SHARED);
if (retval) {
@ -211,8 +210,8 @@ static int mv_ehci_probe(struct platform_device *pdev)
return 0;
err_set_vbus:
if (pdata->set_vbus)
pdata->set_vbus(0);
if (ehci_mv->set_vbus)
ehci_mv->set_vbus(0);
err_disable_clk:
mv_ehci_disable(ehci_mv);
err_put_hcd:
@ -233,8 +232,8 @@ static int mv_ehci_remove(struct platform_device *pdev)
otg_set_host(ehci_mv->otg->otg, NULL);
if (ehci_mv->mode == MV_USB_MODE_HOST) {
if (ehci_mv->pdata->set_vbus)
ehci_mv->pdata->set_vbus(0);
if (ehci_mv->set_vbus)
ehci_mv->set_vbus(0);
mv_ehci_disable(ehci_mv);
}
@ -265,14 +264,20 @@ static void mv_ehci_shutdown(struct platform_device *pdev)
hcd->driver->shutdown(hcd);
}
static const struct of_device_id ehci_mv_dt_ids[] = {
{ .compatible = "marvell,pxau2o-ehci", },
{},
};
static struct platform_driver ehci_mv_driver = {
.probe = mv_ehci_probe,
.remove = mv_ehci_remove,
.shutdown = mv_ehci_shutdown,
.driver = {
.name = "mv-ehci",
.bus = &platform_bus_type,
},
.name = "mv-ehci",
.bus = &platform_bus_type,
.of_match_table = ehci_mv_dt_ids,
},
.id_table = ehci_id_table,
};