diff options
Diffstat (limited to 'drivers/staging/dwc2/platform.c')
| -rw-r--r-- | drivers/staging/dwc2/platform.c | 149 |
1 files changed, 0 insertions, 149 deletions
diff --git a/drivers/staging/dwc2/platform.c b/drivers/staging/dwc2/platform.c deleted file mode 100644 index 83ca1053bb1d..000000000000 --- a/drivers/staging/dwc2/platform.c +++ /dev/null @@ -1,149 +0,0 @@ -/* - * platform.c - DesignWare HS OTG Controller platform driver - * - * Copyright (C) Matthijs Kooijman <matthijs@stdin.nl> - * - * 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. - */ - -#include <linux/kernel.h> -#include <linux/module.h> -#include <linux/slab.h> -#include <linux/device.h> -#include <linux/dma-mapping.h> -#include <linux/platform_device.h> - -#include "core.h" -#include "hcd.h" - -static const char dwc2_driver_name[] = "dwc2"; - -/** - * dwc2_driver_remove() - Called when the DWC_otg core is unregistered with the - * DWC_otg driver - * - * @dev: Platform device - * - * This routine is called, for example, when the rmmod command is executed. The - * device may or may not be electrically present. If it is present, the driver - * stops device processing. Any resources used on behalf of this device are - * freed. - */ -static int dwc2_driver_remove(struct platform_device *dev) -{ - struct dwc2_hsotg *hsotg = platform_get_drvdata(dev); - - dwc2_hcd_remove(hsotg); - - return 0; -} - -/** - * dwc2_driver_probe() - Called when the DWC_otg core is bound to the DWC_otg - * driver - * - * @dev: Platform device - * - * This routine creates the driver components required to control the device - * (core, HCD, and PCD) and initializes the device. The driver components are - * stored in a dwc2_hsotg structure. A reference to the dwc2_hsotg is saved - * in the device private data. This allows the driver to access the dwc2_hsotg - * structure on subsequent calls to driver methods for this device. - */ -static int dwc2_driver_probe(struct platform_device *dev) -{ - struct dwc2_hsotg *hsotg; - struct resource *res; - int retval; - int irq; - struct dwc2_core_params params; - - /* Default all params to autodetect */ - dwc2_set_all_params(¶ms, -1); - - hsotg = devm_kzalloc(&dev->dev, sizeof(*hsotg), GFP_KERNEL); - if (!hsotg) - return -ENOMEM; - - hsotg->dev = &dev->dev; - - /* - * Use reasonable defaults so platforms don't have to provide these. - */ - if (!dev->dev.dma_mask) - dev->dev.dma_mask = &dev->dev.coherent_dma_mask; - retval = dma_set_coherent_mask(&dev->dev, DMA_BIT_MASK(32)); - if (retval) - return retval; - - irq = platform_get_irq(dev, 0); - if (irq < 0) { - dev_err(&dev->dev, "missing IRQ resource\n"); - return irq; - } - - res = platform_get_resource(dev, IORESOURCE_MEM, 0); - hsotg->regs = devm_ioremap_resource(&dev->dev, res); - if (IS_ERR(hsotg->regs)) - return PTR_ERR(hsotg->regs); - - dev_dbg(&dev->dev, "mapped PA %08lx to VA %p\n", - (unsigned long)res->start, hsotg->regs); - - retval = dwc2_hcd_init(hsotg, irq, ¶ms); - if (retval) - return retval; - - platform_set_drvdata(dev, hsotg); - - return retval; -} - -static const struct of_device_id dwc2_of_match_table[] = { - { .compatible = "snps,dwc2" }, - {}, -}; -MODULE_DEVICE_TABLE(of, dwc2_of_match_table); - -static struct platform_driver dwc2_platform_driver = { - .driver = { - .name = (char *)dwc2_driver_name, - .of_match_table = dwc2_of_match_table, - }, - .probe = dwc2_driver_probe, - .remove = dwc2_driver_remove, -}; - -module_platform_driver(dwc2_platform_driver); - -MODULE_DESCRIPTION("DESIGNWARE HS OTG Platform Glue"); -MODULE_AUTHOR("Matthijs Kooijman <matthijs@stdin.nl>"); -MODULE_LICENSE("Dual BSD/GPL"); |