From c3cc40ccea2cd3533a90d915b40f304843642df9 Mon Sep 17 00:00:00 2001 From: Laurent Pinchart Date: Wed, 21 Jan 2015 00:55:44 +0200 Subject: [PATCH] usb: isp1760: Merge platform and OF glue codes Both handle platform devices, merge them. Signed-off-by: Laurent Pinchart Signed-off-by: Felipe Balbi --- drivers/usb/host/isp1760-if.c | 190 ++++++++++++------------------------------ 1 file changed, 55 insertions(+), 135 deletions(-) diff --git a/drivers/usb/host/isp1760-if.c b/drivers/usb/host/isp1760-if.c index 730caa18..3db98da 100644 --- a/drivers/usb/host/isp1760-if.c +++ b/drivers/usb/host/isp1760-if.c @@ -12,121 +12,18 @@ #include #include #include +#include #include +#include #include #include #include "isp1760-hcd.h" -#if defined(CONFIG_OF) && defined(CONFIG_OF_IRQ) -#include -#include -#include -#include -#include -#endif - #ifdef CONFIG_PCI #include #endif -#if defined(CONFIG_OF) && defined(CONFIG_OF_IRQ) -static int of_isp1760_probe(struct platform_device *dev) -{ - struct usb_hcd *hcd; - struct device_node *dp = dev->dev.of_node; - struct resource *res; - struct resource memory; - int virq; - resource_size_t res_len; - int ret; - unsigned int devflags = 0; - u32 bus_width = 0; - - ret = of_address_to_resource(dp, 0, &memory); - if (ret) - return -ENXIO; - - res_len = resource_size(&memory); - - res = request_mem_region(memory.start, res_len, dev_name(&dev->dev)); - if (!res) - return -EBUSY; - - virq = irq_of_parse_and_map(dp, 0); - if (!virq) { - ret = -ENODEV; - goto release_reg; - } - - if (of_device_is_compatible(dp, "nxp,usb-isp1761")) - devflags |= ISP1760_FLAG_ISP1761; - - /* Some systems wire up only 16 of the 32 data lines */ - of_property_read_u32(dp, "bus-width", &bus_width); - if (bus_width == 16) - devflags |= ISP1760_FLAG_BUS_WIDTH_16; - - if (of_get_property(dp, "port1-otg", NULL) != NULL) - devflags |= ISP1760_FLAG_OTG_EN; - - if (of_get_property(dp, "analog-oc", NULL) != NULL) - devflags |= ISP1760_FLAG_ANALOG_OC; - - if (of_get_property(dp, "dack-polarity", NULL) != NULL) - devflags |= ISP1760_FLAG_DACK_POL_HIGH; - - if (of_get_property(dp, "dreq-polarity", NULL) != NULL) - devflags |= ISP1760_FLAG_DREQ_POL_HIGH; - - hcd = isp1760_register(memory.start, res_len, virq, IRQF_SHARED, - &dev->dev, dev_name(&dev->dev), devflags); - if (IS_ERR(hcd)) { - ret = PTR_ERR(hcd); - goto release_reg; - } - - platform_set_drvdata(dev, hcd); - return ret; - -release_reg: - release_mem_region(memory.start, res_len); - return ret; -} - -static int of_isp1760_remove(struct platform_device *dev) -{ - struct usb_hcd *hcd = platform_get_drvdata(dev); - - usb_remove_hcd(hcd); - iounmap(hcd->regs); - release_mem_region(hcd->rsrc_start, hcd->rsrc_len); - usb_put_hcd(hcd); - - return 0; -} - -static const struct of_device_id of_isp1760_match[] = { - { - .compatible = "nxp,usb-isp1760", - }, - { - .compatible = "nxp,usb-isp1761", - }, - { }, -}; -MODULE_DEVICE_TABLE(of, of_isp1760_match); - -static struct platform_driver isp1760_of_driver = { - .driver = { - .name = "nxp-isp1760", - .of_match_table = of_isp1760_match, - }, - .probe = of_isp1760_probe, - .remove = of_isp1760_remove, -}; -#endif - #ifdef CONFIG_PCI static int isp1761_pci_probe(struct pci_dev *dev, const struct pci_device_id *id) @@ -304,26 +201,23 @@ static struct pci_driver isp1761_pci_driver = { static int isp1760_plat_probe(struct platform_device *pdev) { - int ret = 0; - struct usb_hcd *hcd; + unsigned long irqflags = IRQF_SHARED; + unsigned int devflags = 0; struct resource *mem_res; struct resource *irq_res; resource_size_t mem_size; - struct isp1760_platform_data *priv = dev_get_platdata(&pdev->dev); - unsigned int devflags = 0; - unsigned long irqflags = IRQF_SHARED; + struct usb_hcd *hcd; + int ret; mem_res = platform_get_resource(pdev, IORESOURCE_MEM, 0); if (!mem_res) { pr_warning("isp1760: Memory resource not available\n"); - ret = -ENODEV; - goto out; + return -ENODEV; } mem_size = resource_size(mem_res); if (!request_mem_region(mem_res->start, mem_size, "isp1760")) { pr_warning("isp1760: Cannot reserve the memory resource\n"); - ret = -EBUSY; - goto out; + return -EBUSY; } irq_res = platform_get_resource(pdev, IORESOURCE_IRQ, 0); @@ -335,39 +229,63 @@ static int isp1760_plat_probe(struct platform_device *pdev) irqflags |= irq_res->flags & IRQF_TRIGGER_MASK; - if (priv) { - if (priv->is_isp1761) + if (IS_ENABLED(CONFIG_OF) && pdev->dev.of_node) { + struct device_node *dp = pdev->dev.of_node; + u32 bus_width = 0; + + if (of_device_is_compatible(dp, "nxp,usb-isp1761")) devflags |= ISP1760_FLAG_ISP1761; - if (priv->bus_width_16) + + /* Some systems wire up only 16 of the 32 data lines */ + of_property_read_u32(dp, "bus-width", &bus_width); + if (bus_width == 16) devflags |= ISP1760_FLAG_BUS_WIDTH_16; - if (priv->port1_otg) + + if (of_property_read_bool(dp, "port1-otg")) devflags |= ISP1760_FLAG_OTG_EN; - if (priv->analog_oc) + + if (of_property_read_bool(dp, "analog-oc")) devflags |= ISP1760_FLAG_ANALOG_OC; - if (priv->dack_polarity_high) + + if (of_property_read_bool(dp, "dack-polarity")) devflags |= ISP1760_FLAG_DACK_POL_HIGH; - if (priv->dreq_polarity_high) + + if (of_property_read_bool(dp, "dreq-polarity")) + devflags |= ISP1760_FLAG_DREQ_POL_HIGH; + } else if (dev_get_platdata(&pdev->dev)) { + struct isp1760_platform_data *pdata = + dev_get_platdata(&pdev->dev); + + if (pdata->is_isp1761) + devflags |= ISP1760_FLAG_ISP1761; + if (pdata->bus_width_16) + devflags |= ISP1760_FLAG_BUS_WIDTH_16; + if (pdata->port1_otg) + devflags |= ISP1760_FLAG_OTG_EN; + if (pdata->analog_oc) + devflags |= ISP1760_FLAG_ANALOG_OC; + if (pdata->dack_polarity_high) + devflags |= ISP1760_FLAG_DACK_POL_HIGH; + if (pdata->dreq_polarity_high) devflags |= ISP1760_FLAG_DREQ_POL_HIGH; } hcd = isp1760_register(mem_res->start, mem_size, irq_res->start, irqflags, &pdev->dev, dev_name(&pdev->dev), devflags); - - platform_set_drvdata(pdev, hcd); - if (IS_ERR(hcd)) { pr_warning("isp1760: Failed to register the HCD device\n"); - ret = -ENODEV; + ret = PTR_ERR(hcd); goto cleanup; } + platform_set_drvdata(pdev, hcd); + pr_info("ISP1760 USB device initialised\n"); - return ret; + return 0; cleanup: release_mem_region(mem_res->start, mem_size); -out: return ret; } @@ -383,11 +301,21 @@ static int isp1760_plat_remove(struct platform_device *pdev) return 0; } +#ifdef CONFIG_OF +static const struct of_device_id isp1760_of_match[] = { + { .compatible = "nxp,usb-isp1760", }, + { .compatible = "nxp,usb-isp1761", }, + { }, +}; +MODULE_DEVICE_TABLE(of, isp1760_of_match); +#endif + static struct platform_driver isp1760_plat_driver = { .probe = isp1760_plat_probe, .remove = isp1760_plat_remove, .driver = { .name = "isp1760", + .of_match_table = of_match_ptr(isp1760_of_match), }, }; @@ -400,11 +328,6 @@ static int __init isp1760_init(void) ret = platform_driver_register(&isp1760_plat_driver); if (!ret) any_ret = 0; -#if defined(CONFIG_OF) && defined(CONFIG_OF_IRQ) - ret = platform_driver_register(&isp1760_of_driver); - if (!ret) - any_ret = 0; -#endif #ifdef CONFIG_PCI ret = pci_register_driver(&isp1761_pci_driver); if (!ret) @@ -420,9 +343,6 @@ module_init(isp1760_init); static void __exit isp1760_exit(void) { platform_driver_unregister(&isp1760_plat_driver); -#if defined(CONFIG_OF) && defined(CONFIG_OF_IRQ) - platform_driver_unregister(&isp1760_of_driver); -#endif #ifdef CONFIG_PCI pci_unregister_driver(&isp1761_pci_driver); #endif -- 2.7.4