From ffb27de4760595c356ef619c97f25722c8db28e7 Mon Sep 17 00:00:00 2001 From: John Crispin Date: Sun, 27 Jul 2014 09:49:07 +0100 Subject: [PATCH 38/57] USB: add OHCI/EHCI OF binding based on f3bc64d6d1f21c1b92d75f233a37b75d77af6963 Signed-off-by: John Crispin --- drivers/usb/Makefile | 3 ++- drivers/usb/host/ehci-platform.c | 21 +++++++++++++++++---- drivers/usb/host/ohci-platform.c | 37 +++++++++++++++++++++++++++++++------ 3 files changed, 50 insertions(+), 11 deletions(-) --- a/drivers/usb/Makefile +++ b/drivers/usb/Makefile @@ -11,6 +11,8 @@ obj-$(CONFIG_USB_DWC2) += dwc2/ obj-$(CONFIG_USB_MON) += mon/ +obj-$(CONFIG_USB_PHY) += phy/ + obj-$(CONFIG_PCI) += host/ obj-$(CONFIG_USB_EHCI_HCD) += host/ obj-$(CONFIG_USB_ISP116X_HCD) += host/ @@ -41,7 +43,6 @@ obj-$(CONFIG_USB_TMC) += class/ obj-$(CONFIG_USB_STORAGE) += storage/ obj-$(CONFIG_USB) += storage/ -obj-$(CONFIG_USB_MDC800) += image/ obj-$(CONFIG_USB_MICROTEK) += image/ obj-$(CONFIG_USB_SERIAL) += serial/ --- a/drivers/usb/host/ehci-platform.c +++ b/drivers/usb/host/ehci-platform.c @@ -29,6 +29,8 @@ #include #include #include +#include +#include #include "ehci.h" @@ -124,6 +126,15 @@ static int ehci_platform_probe(struct pl hcd->rsrc_start = res_mem->start; hcd->rsrc_len = resource_size(res_mem); +#ifdef CONFIG_USB_PHY + hcd->phy = devm_usb_get_phy(&dev->dev, USB_PHY_TYPE_USB2); + if (!IS_ERR_OR_NULL(hcd->phy)) { + otg_set_host(hcd->phy->otg, + &hcd->self); + usb_phy_init(hcd->phy); + } +#endif + hcd->regs = devm_ioremap_resource(&dev->dev, res_mem); if (IS_ERR(hcd->regs)) { err = PTR_ERR(hcd->regs); @@ -161,6 +172,9 @@ static int ehci_platform_remove(struct p if (pdata == &ehci_platform_defaults) dev->dev.platform_data = NULL; + if (pdata == &ehci_platform_defaults) + dev->dev.platform_data = NULL; + return 0; } @@ -205,9 +219,8 @@ static int ehci_platform_resume(struct d #define ehci_platform_resume NULL #endif /* CONFIG_PM */ -static const struct of_device_id vt8500_ehci_ids[] = { - { .compatible = "via,vt8500-ehci", }, - { .compatible = "wm,prizm-ehci", }, +static const struct of_device_id ralink_ehci_ids[] = { + { .compatible = "ralink,rt3xxx-ehci", }, {} }; @@ -231,7 +244,7 @@ static struct platform_driver ehci_platf .owner = THIS_MODULE, .name = "ehci-platform", .pm = &ehci_platform_pm_ops, - .of_match_table = vt8500_ehci_ids, + .of_match_table = ralink_ehci_ids, } }; --- a/drivers/usb/host/ohci-platform.c +++ b/drivers/usb/host/ohci-platform.c @@ -22,18 +22,22 @@ #include #include #include +#include #include +#include +#include #include "ohci.h" #define DRIVER_DESC "OHCI generic platform driver" +static struct usb_ohci_pdata ohci_platform_defaults; static const char hcd_name[] = "ohci-platform"; static int ohci_platform_reset(struct usb_hcd *hcd) { struct platform_device *pdev = to_platform_device(hcd->self.controller); - struct usb_ohci_pdata *pdata = dev_get_platdata(&pdev->dev); + struct usb_ohci_pdata *pdata = dev_get_platdata(&pdev->dev);; struct ohci_hcd *ohci = hcd_to_ohci(hcd); if (pdata->big_endian_desc) @@ -63,11 +67,18 @@ static int ohci_platform_probe(struct pl int irq; int err = -ENOMEM; - if (!pdata) { - WARN_ON(1); - return -ENODEV; - } + /* + * use reasonable defaults so platforms don't have to provide these. + * with DT probing on ARM, none of these are set. + */ + if (!dev->dev.platform_data) + dev->dev.platform_data = &ohci_platform_defaults; + if (!dev->dev.dma_mask) + dev->dev.dma_mask = &dev->dev.coherent_dma_mask; + if (!dev->dev.coherent_dma_mask) + dev->dev.coherent_dma_mask = DMA_BIT_MASK(32); + pdata = dev->dev.platform_data; if (usb_disabled()) return -ENODEV; @@ -99,6 +110,12 @@ static int ohci_platform_probe(struct pl hcd->rsrc_start = res_mem->start; hcd->rsrc_len = resource_size(res_mem); +#ifdef CONFIG_USB_PHY + hcd->phy = devm_usb_get_phy(&dev->dev, USB_PHY_TYPE_USB2); + if (!IS_ERR_OR_NULL(hcd->phy)) + usb_phy_init(hcd->phy); +#endif + hcd->regs = devm_ioremap_resource(&dev->dev, res_mem); if (IS_ERR(hcd->regs)) { err = PTR_ERR(hcd->regs); @@ -134,6 +151,9 @@ static int ohci_platform_remove(struct p if (pdata->power_off) pdata->power_off(dev); + if (pdata == &ohci_platform_defaults) + dev->dev.platform_data = NULL; + return 0; } @@ -180,6 +200,11 @@ static int ohci_platform_resume(struct d #define ohci_platform_resume NULL #endif /* CONFIG_PM */ +static const struct of_device_id ralink_ohci_ids[] = { + { .compatible = "ralink,rt3xxx-ohci", }, + {} +}; + static const struct platform_device_id ohci_platform_table[] = { { "ohci-platform", 0 }, { } @@ -200,6 +225,7 @@ static struct platform_driver ohci_platf .owner = THIS_MODULE, .name = "ohci-platform", .pm = &ohci_platform_pm_ops, + .of_match_table = of_match_ptr(ralink_ohci_ids), } };