Messages in this thread Patch in this message | | | From | Bryan Wu <> | Subject | [PATCH] USB/ISP1760: Add support for the generic platfrom device centralized driver model (v2) | Date | Tue, 18 Nov 2008 17:21:33 +0800 |
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From: Michael Hennerich <michael.hennerich@analog.com>
v2-v1: - cleanup style issue - add Kconfig option CONFIG_USB_ISP1760_PDEV - isp1760 interrupt is default setup TRIGGER_LOW
Signed-off-by: Michael Hennerich <michael.hennerich@analog.com> Signed-off-by: Bryan Wu <cooloney@kernel.org> --- drivers/usb/host/Kconfig | 6 +++ drivers/usb/host/isp1760-if.c | 95 +++++++++++++++++++++++++++++++++++++++++ include/linux/usb/isp1760.h | 19 ++++++++ 3 files changed, 120 insertions(+), 0 deletions(-) create mode 100644 include/linux/usb/isp1760.h
diff --git a/drivers/usb/host/Kconfig b/drivers/usb/host/Kconfig index 427b3ac..1e38e8a 100644 --- a/drivers/usb/host/Kconfig +++ b/drivers/usb/host/Kconfig @@ -123,6 +123,12 @@ config USB_ISP1760_HCD To compile this driver as a module, choose M here: the module will be called isp1760. +config USB_ISP1760_PDEV + bool "Support for the generic platfrom device driver model" + depends on USB_ISP1760_HCD + ---help--- + Enables support for the generic platfrom device centralized driver model + config USB_ISP1362_HCD tristate "ISP1362 HCD support" depends on USB diff --git a/drivers/usb/host/isp1760-if.c b/drivers/usb/host/isp1760-if.c index b87ca7c..cf0431c 100644 --- a/drivers/usb/host/isp1760-if.c +++ b/drivers/usb/host/isp1760-if.c @@ -3,6 +3,7 @@ * Currently there is support for * - OpenFirmware * - PCI + * - PDEV (generic platform device centralized driver model) * * (c) 2007 Sebastian Siewior <bigeasy@linutronix.de> * @@ -23,6 +24,11 @@ #include <linux/pci.h> #endif +#ifdef CONFIG_USB_ISP1760_PDEV +#include <linux/platform_device.h> +#include <linux/usb/isp1760.h> +#endif + #ifdef CONFIG_PPC_OF static int of_isp1760_probe(struct of_device *dev, const struct of_device_id *match) @@ -286,12 +292,98 @@ static struct pci_driver isp1761_pci_driver = { }; #endif +#ifdef CONFIG_USB_ISP1760_PDEV +static int __devinit isp1760_pdev_probe(struct platform_device *pdev) +{ + struct usb_hcd *hcd; + struct resource *addr; + int irq; + unsigned int devflags = 0; + struct isp1760_platform_data *priv = pdev->dev.platform_data; + + /* basic sanity checks first. board-specific init logic should + * have initialized these two resources and probably board + * specific platform_data. we don't probe for IRQs, and do only + * minimal sanity checking. + */ + + if (usb_disabled()) + return -ENODEV; + + if (pdev->num_resources < 2) + return -ENODEV; + + addr = platform_get_resource(pdev, IORESOURCE_MEM, 0); + irq = platform_get_irq(pdev, 0); + + if (!addr || irq < 0) + return -ENODEV; + + if (priv) { + if (priv->is_isp1761) + devflags |= ISP1760_FLAG_ISP1761; + if (priv->port1_disable) + devflags |= ISP1760_FLAG_PORT1_DIS; + if (priv->bus_width_16) + devflags |= ISP1760_FLAG_BUS_WIDTH_16; + if (priv->port1_otg) + devflags |= ISP1760_FLAG_OTG_EN; + if (priv->analog_oc) + devflags |= ISP1760_FLAG_ANALOG_OC; + if (priv->dack_polarity_high) + devflags |= ISP1760_FLAG_DACK_POL_HIGH; + if (priv->dreq_polarity_high) + devflags |= ISP1760_FLAG_DREQ_POL_HIGH; + } + + hcd = isp1760_register(addr->start, resource_size(addr), irq, + IRQF_DISABLED | IRQF_SHARED | IRQF_TRIGGER_LOW, + &pdev->dev, dev_name(&pdev->dev), + devflags); + + if (IS_ERR(hcd)) + return PTR_ERR(hcd); + + return 0; +} + +static int __devexit +isp1760_pdev_remove(struct platform_device *pdev) +{ + struct usb_hcd *hcd = platform_get_drvdata(pdev); + + platform_set_drvdata(pdev, NULL); + + usb_remove_hcd(hcd); + iounmap(hcd->regs); + usb_put_hcd(hcd); + return 0; +} + +struct platform_driver isp1760_pdev_driver = { + .probe = isp1760_pdev_probe, + .remove = __devexit_p(isp1760_pdev_remove), + .driver = { + .name = "isp1760-hcd", + .owner = THIS_MODULE, + }, +}; +#endif /* CONFIG_USB_ISP1760_PDEV */ + static int __init isp1760_init(void) { int ret; init_kmem_once(); +#ifdef CONFIG_USB_ISP1760_PDEV + ret = platform_driver_register(&isp1760_pdev_driver); + if (ret) { + deinit_kmem_cache(); + return ret; + } +#endif + #ifdef CONFIG_PPC_OF ret = of_register_platform_driver(&isp1760_of_driver); if (ret) { @@ -325,6 +417,9 @@ static void __exit isp1760_exit(void) #ifdef CONFIG_PCI pci_unregister_driver(&isp1761_pci_driver); #endif +#ifdef CONFIG_USB_ISP1760_PDEV + platform_driver_unregister(&isp1760_pdev_driver); +#endif deinit_kmem_cache(); } module_exit(isp1760_exit); diff --git a/include/linux/usb/isp1760.h b/include/linux/usb/isp1760.h new file mode 100644 index 0000000..74ffbce --- /dev/null +++ b/include/linux/usb/isp1760.h @@ -0,0 +1,19 @@ +/* + * board initialization should put one of these into dev->platform_data + * and place the isp1760 onto platform_bus named "isp1760-hcd". + */ + +#ifndef __LINUX_USB_ISP1760_H +#define __LINUX_USB_ISP1760_H + +struct isp1760_platform_data { + unsigned is_isp1761:1; /* Chip is ISP1761 */ + unsigned port1_disable:1; /* Port 1 disabled */ + unsigned bus_width_16:1; /* 16/32-bit data bus width */ + unsigned port1_otg:1; /* Port 1 supports OTG */ + unsigned analog_oc:1; /* Analog overcurrent */ + unsigned dack_polarity_high:1; /* DACK active high */ + unsigned dreq_polarity_high:1; /* DREQ active high */ +}; + +#endif /* __LINUX_USB_ISP1760_H */ -- 1.5.6.3
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