diff options
Diffstat (limited to 'drivers/usb/dwc2/pci.c')
| -rw-r--r-- | drivers/usb/dwc2/pci.c | 95 |
1 files changed, 22 insertions, 73 deletions
diff --git a/drivers/usb/dwc2/pci.c b/drivers/usb/dwc2/pci.c index fdeb8c7bf30a..f3a1e4232a31 100644 --- a/drivers/usb/dwc2/pci.c +++ b/drivers/usb/dwc2/pci.c @@ -1,37 +1,8 @@ +// SPDX-License-Identifier: (GPL-2.0+ OR BSD-3-Clause) /* * pci.c - DesignWare HS OTG Controller PCI driver * * Copyright (C) 2004-2013 Synopsys, Inc. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions, and the following disclaimer, - * without modification. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. The names of the above-listed copyright holders may not be used - * to endorse or promote products derived from this software without - * specific prior written permission. - * - * ALTERNATIVELY, this software may be distributed under the terms of the - * GNU General Public License ("GPL") as published by the Free Software - * Foundation; either version 2 of the License, or (at your option) any - * later version. - * - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS - * IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, - * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR - * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR - * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, - * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, - * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR - * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF - * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING - * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS - * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ /* @@ -53,7 +24,7 @@ #include <linux/platform_device.h> #include <linux/usb/usb_phy_generic.h> -#define PCI_PRODUCT_ID_HAPS_HSOTG 0xabc0 +#include "core.h" static const char dwc2_driver_name[] = "dwc2-pci"; @@ -62,27 +33,18 @@ struct dwc2_pci_glue { struct platform_device *phy; }; -static int dwc2_pci_quirks(struct pci_dev *pdev, struct platform_device *dwc2) -{ - if (pdev->vendor == PCI_VENDOR_ID_SYNOPSYS && - pdev->device == PCI_PRODUCT_ID_HAPS_HSOTG) { - struct property_entry properties[] = { - { }, - }; - - return platform_device_add_properties(dwc2, properties); - } - - return 0; -} - +/** + * dwc2_pci_remove() - Provides the cleanup entry points for the DWC_otg PCI + * driver + * + * @pci: The programming view of DWC_otg PCI + */ static void dwc2_pci_remove(struct pci_dev *pci) { struct dwc2_pci_glue *glue = pci_get_drvdata(pci); platform_device_unregister(glue->dwc2); usb_phy_generic_unregister(glue->phy); - kfree(glue); pci_set_drvdata(pci, NULL); } @@ -104,10 +66,18 @@ static int dwc2_pci_probe(struct pci_dev *pci, pci_set_master(pci); + phy = usb_phy_generic_register(); + if (IS_ERR(phy)) { + dev_err(dev, "error registering generic PHY (%ld)\n", + PTR_ERR(phy)); + return PTR_ERR(phy); + } + dwc2 = platform_device_alloc("dwc2", PLATFORM_DEVID_AUTO); if (!dwc2) { dev_err(dev, "couldn't allocate dwc2 device\n"); - return -ENOMEM; + ret = -ENOMEM; + goto err; } memset(res, 0x00, sizeof(struct resource) * ARRAY_SIZE(res)); @@ -124,21 +94,16 @@ static int dwc2_pci_probe(struct pci_dev *pci, ret = platform_device_add_resources(dwc2, res, ARRAY_SIZE(res)); if (ret) { dev_err(dev, "couldn't add resources to dwc2 device\n"); - return ret; + goto err; } dwc2->dev.parent = dev; - phy = usb_phy_generic_register(); - if (IS_ERR(phy)) { - dev_err(dev, "error registering generic PHY (%ld)\n", - PTR_ERR(phy)); - return PTR_ERR(phy); - } - - ret = dwc2_pci_quirks(pci, dwc2); - if (ret) + glue = devm_kzalloc(dev, sizeof(*glue), GFP_KERNEL); + if (!glue) { + ret = -ENOMEM; goto err; + } ret = platform_device_add(dwc2); if (ret) { @@ -146,10 +111,6 @@ static int dwc2_pci_probe(struct pci_dev *pci, goto err; } - glue = kzalloc(sizeof(*glue), GFP_KERNEL); - if (!glue) - return -ENOMEM; - glue->phy = phy; glue->dwc2 = dwc2; pci_set_drvdata(pci, glue); @@ -161,18 +122,6 @@ err: return ret; } -static const struct pci_device_id dwc2_pci_ids[] = { - { - PCI_DEVICE(PCI_VENDOR_ID_SYNOPSYS, PCI_PRODUCT_ID_HAPS_HSOTG), - }, - { - PCI_DEVICE(PCI_VENDOR_ID_STMICRO, - PCI_DEVICE_ID_STMICRO_USB_OTG), - }, - { /* end: all zeroes */ } -}; -MODULE_DEVICE_TABLE(pci, dwc2_pci_ids); - static struct pci_driver dwc2_pci_driver = { .name = dwc2_driver_name, .id_table = dwc2_pci_ids, |