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Code Issues Releases Wiki Activity

USB: EHCI: ehci-mv: use phy-pxa-usb

Browse source 
Use a proper PHY driver, instead of hooks to a board support package.

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 22:43:01 +02:00 committed by Greg Kroah-Hartman
parent bd93227897
commit a740f20d13
2 changed files with 23 additions and 32 deletions
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11
arch/arm/mach-mmp/devices.c
View file

@ -277,21 +277,12 @@ struct platform_device pxa168_device_u2o = {
#if IS_ENABLED(CONFIG_USB_EHCI_MV_U2O)
struct resource pxa168_u2oehci_resources[] = {
/* regbase */
[0] = {
.start = PXA168_U2O_REGBASE + U2x_CAPREGS_OFFSET,
.start = PXA168_U2O_REGBASE,
.end = PXA168_U2O_REGBASE + USB_REG_RANGE,
.flags = IORESOURCE_MEM,
.name = "capregs",
},
/* phybase */
[1] = {
.start = PXA168_U2O_PHYBASE,
.end = PXA168_U2O_PHYBASE + USB_PHY_RANGE,
.flags = IORESOURCE_MEM,
.name = "phyregs",
},
[2] = {
.start = IRQ_PXA168_USB1,
.end = IRQ_PXA168_USB1,
.flags = IORESOURCE_IRQ,

44
drivers/usb/host/ehci-mv.c
View file

@ -18,6 +18,9 @@
#include "ehci.h"
/* registers */
#define U2x_CAPREGS_OFFSET 0x100
#define CAPLENGTH_MASK (0xff)
#define hcd_to_ehci_hcd_mv(h) ((struct ehci_hcd_mv *)hcd_to_ehci(h)->priv)
@ -26,13 +29,14 @@ struct ehci_hcd_mv {
/* Which mode does this ehci running OTG/Host ? */
int mode;
void __iomem *phy_regs;
void __iomem *base;
void __iomem *cap_regs;
void __iomem *op_regs;
struct usb_phy *otg;
struct mv_usb_platform_data *pdata;
struct phy *phy;
struct clk *clk;
};
@ -49,22 +53,13 @@ static void ehci_clock_disable(struct ehci_hcd_mv *ehci_mv)
static int mv_ehci_enable(struct ehci_hcd_mv *ehci_mv)
{
int retval;
ehci_clock_enable(ehci_mv);
if (ehci_mv->pdata->phy_init) {
retval = ehci_mv->pdata->phy_init(ehci_mv->phy_regs);
if (retval)
return retval;
}
return 0;
return phy_init(ehci_mv->phy);
}
static void mv_ehci_disable(struct ehci_hcd_mv *ehci_mv)
{
if (ehci_mv->pdata->phy_deinit)
ehci_mv->pdata->phy_deinit(ehci_mv->phy_regs);
phy_exit(ehci_mv->phy);
ehci_clock_disable(ehci_mv);
}
@ -121,6 +116,14 @@ static int mv_ehci_probe(struct platform_device *pdev)
ehci_mv = hcd_to_ehci_hcd_mv(hcd);
ehci_mv->pdata = pdata;
ehci_mv->phy = devm_phy_get(&pdev->dev, "usb");
if (IS_ERR(ehci_mv->phy)) {
retval = PTR_ERR(ehci_mv->phy);
if (retval != -EPROBE_DEFER)
dev_err(&pdev->dev, "Failed to get phy.\n");
goto err_put_hcd;
}
ehci_mv->clk = devm_clk_get(&pdev->dev, NULL);
if (IS_ERR(ehci_mv->clk)) {
dev_err(&pdev->dev, "error getting clock\n");
@ -128,17 +131,12 @@ static int mv_ehci_probe(struct platform_device *pdev)
goto err_put_hcd;
}
r = platform_get_resource_byname(pdev, IORESOURCE_MEM, "phyregs");
ehci_mv->phy_regs = devm_ioremap_resource(&pdev->dev, r);
if (IS_ERR(ehci_mv->phy_regs)) {
retval = PTR_ERR(ehci_mv->phy_regs);
goto err_put_hcd;
}
r = platform_get_resource_byname(pdev, IORESOURCE_MEM, "capregs");
ehci_mv->cap_regs = devm_ioremap_resource(&pdev->dev, r);
if (IS_ERR(ehci_mv->cap_regs)) {
retval = PTR_ERR(ehci_mv->cap_regs);
r = platform_get_resource(pdev, IORESOURCE_MEM, 0);
ehci_mv->base = devm_ioremap_resource(&pdev->dev, r);
if (IS_ERR(ehci_mv->base)) {
retval = PTR_ERR(ehci_mv->base);
goto err_put_hcd;
}
@ -148,6 +146,8 @@ static int mv_ehci_probe(struct platform_device *pdev)
goto err_put_hcd;
}
ehci_mv->cap_regs =
(void __iomem *) ((unsigned long) ehci_mv->base + U2x_CAPREGS_OFFSET);
offset = readl(ehci_mv->cap_regs) & CAPLENGTH_MASK;
ehci_mv->op_regs =
(void __iomem *) ((unsigned long) ehci_mv->cap_regs + offset);