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usb: gadget: langwell: drop langwell_otg support
Since there is no working (or even compilable) OTG_TRANSCEIVER support for this driver, remove the dead code which depends on it at compile time. Signed-off-by: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: stable@vger.kernel.org # v2.6.31+ Cc: Heikki Krogerus <heikki.krogerus@linux.intel.com> Cc: Greg Kroah-Hartman <gregkh@suse.de> Cc: linux-usb@vger.kernel.org Signed-off-by: Felipe Balbi <balbi@ti.com>
This commit is contained in:
Alexander Shishkin
Felipe Balbi
parent
c1084a56da
commit
28bd622254
@ -11,11 +11,6 @@
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/* #undef DEBUG */
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/* #undef VERBOSE_DEBUG */
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#if defined(CONFIG_USB_LANGWELL_OTG)
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#define OTG_TRANSCEIVER
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#endif
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#include <linux/module.h>
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#include <linux/pci.h>
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#include <linux/dma-mapping.h>
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@ -2315,13 +2310,9 @@ static void handle_setup_packet(struct langwell_udc *dev,
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if (!gadget_is_otg(&dev->gadget))
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break;
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else if (setup->bRequest == USB_DEVICE_B_HNP_ENABLE) {
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else if (setup->bRequest == USB_DEVICE_B_HNP_ENABLE)
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dev->gadget.b_hnp_enable = 1;
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#ifdef OTG_TRANSCEIVER
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if (!dev->lotg->otg.default_a)
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dev->lotg->hsm.b_hnp_enable = 1;
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#endif
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} else if (setup->bRequest == USB_DEVICE_A_HNP_SUPPORT)
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else if (setup->bRequest == USB_DEVICE_A_HNP_SUPPORT)
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dev->gadget.a_hnp_support = 1;
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else if (setup->bRequest ==
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USB_DEVICE_A_ALT_HNP_SUPPORT)
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@ -2752,12 +2743,6 @@ static void handle_usb_reset(struct langwell_udc *dev)
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dev->usb_state = USB_STATE_ATTACHED;
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}
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#ifdef OTG_TRANSCEIVER
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/* refer to USB OTG 6.6.2.3 b_hnp_en is cleared */
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if (!dev->lotg->otg.default_a)
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dev->lotg->hsm.b_hnp_enable = 0;
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#endif
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dev_vdbg(&dev->pdev->dev, "<--- %s()\n", __func__);
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}
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@ -2770,29 +2755,6 @@ static void handle_bus_suspend(struct langwell_udc *dev)
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dev->resume_state = dev->usb_state;
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dev->usb_state = USB_STATE_SUSPENDED;
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#ifdef OTG_TRANSCEIVER
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if (dev->lotg->otg.default_a) {
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if (dev->lotg->hsm.b_bus_suspend_vld == 1) {
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dev->lotg->hsm.b_bus_suspend = 1;
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/* notify transceiver the state changes */
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if (spin_trylock(&dev->lotg->wq_lock)) {
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langwell_update_transceiver();
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spin_unlock(&dev->lotg->wq_lock);
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}
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}
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dev->lotg->hsm.b_bus_suspend_vld++;
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} else {
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if (!dev->lotg->hsm.a_bus_suspend) {
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dev->lotg->hsm.a_bus_suspend = 1;
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/* notify transceiver the state changes */
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if (spin_trylock(&dev->lotg->wq_lock)) {
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langwell_update_transceiver();
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spin_unlock(&dev->lotg->wq_lock);
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}
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}
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}
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#endif
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/* report suspend to the driver */
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if (dev->driver) {
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if (dev->driver->suspend) {
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@ -2823,11 +2785,6 @@ static void handle_bus_resume(struct langwell_udc *dev)
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if (dev->pdev->device != 0x0829)
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langwell_phy_low_power(dev, 0);
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#ifdef OTG_TRANSCEIVER
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if (dev->lotg->otg.default_a == 0)
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dev->lotg->hsm.a_bus_suspend = 0;
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#endif
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/* report resume to the driver */
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if (dev->driver) {
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if (dev->driver->resume) {
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@ -3020,7 +2977,6 @@ static void langwell_udc_remove(struct pci_dev *pdev)
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dev->done = &done;
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#ifndef OTG_TRANSCEIVER
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/* free dTD dma_pool and dQH */
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if (dev->dtd_pool)
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dma_pool_destroy(dev->dtd_pool);
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@ -3032,7 +2988,6 @@ static void langwell_udc_remove(struct pci_dev *pdev)
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/* release SRAM caching */
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if (dev->has_sram && dev->got_sram)
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sram_deinit(dev);
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#endif
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if (dev->status_req) {
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kfree(dev->status_req->req.buf);
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@ -3045,7 +3000,6 @@ static void langwell_udc_remove(struct pci_dev *pdev)
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if (dev->got_irq)
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free_irq(pdev->irq, dev);
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#ifndef OTG_TRANSCEIVER
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if (dev->cap_regs)
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iounmap(dev->cap_regs);
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@ -3055,13 +3009,6 @@ static void langwell_udc_remove(struct pci_dev *pdev)
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if (dev->enabled)
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pci_disable_device(pdev);
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#else
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if (dev->transceiver) {
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otg_put_transceiver(dev->transceiver);
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dev->transceiver = NULL;
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dev->lotg = NULL;
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}
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#endif
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dev->cap_regs = NULL;
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@ -3072,9 +3019,7 @@ static void langwell_udc_remove(struct pci_dev *pdev)
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device_remove_file(&pdev->dev, &dev_attr_langwell_udc);
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device_remove_file(&pdev->dev, &dev_attr_remote_wakeup);
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#ifndef OTG_TRANSCEIVER
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pci_set_drvdata(pdev, NULL);
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#endif
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/* free dev, wait for the release() finished */
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wait_for_completion(&done);
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@ -3089,9 +3034,7 @@ static int langwell_udc_probe(struct pci_dev *pdev,
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const struct pci_device_id *id)
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{
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struct langwell_udc *dev;
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#ifndef OTG_TRANSCEIVER
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unsigned long resource, len;
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#endif
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void __iomem *base = NULL;
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size_t size;
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int retval;
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@ -3109,16 +3052,6 @@ static int langwell_udc_probe(struct pci_dev *pdev,
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dev->pdev = pdev;
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dev_dbg(&dev->pdev->dev, "---> %s()\n", __func__);
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#ifdef OTG_TRANSCEIVER
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/* PCI device is already enabled by otg_transceiver driver */
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dev->enabled = 1;
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/* mem region and register base */
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dev->region = 1;
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dev->transceiver = otg_get_transceiver();
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dev->lotg = otg_to_langwell(dev->transceiver);
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base = dev->lotg->regs;
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#else
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pci_set_drvdata(pdev, dev);
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/* now all the pci goodies ... */
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@ -3139,7 +3072,6 @@ static int langwell_udc_probe(struct pci_dev *pdev,
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dev->region = 1;
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base = ioremap_nocache(resource, len);
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#endif
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if (base == NULL) {
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dev_err(&dev->pdev->dev, "can't map memory\n");
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retval = -EFAULT;
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@ -3163,7 +3095,6 @@ static int langwell_udc_probe(struct pci_dev *pdev,
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dev->got_sram = 0;
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dev_vdbg(&dev->pdev->dev, "dev->has_sram: %d\n", dev->has_sram);
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#ifndef OTG_TRANSCEIVER
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/* enable SRAM caching if detected */
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if (dev->has_sram && !dev->got_sram)
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sram_init(dev);
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@ -3182,7 +3113,6 @@ static int langwell_udc_probe(struct pci_dev *pdev,
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goto error;
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}
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dev->got_irq = 1;
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#endif
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/* set stopped bit */
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dev->stopped = 1;
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@ -3257,10 +3187,8 @@ static int langwell_udc_probe(struct pci_dev *pdev,
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dev->remote_wakeup = 0;
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dev->dev_status = 1 << USB_DEVICE_SELF_POWERED;
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#ifndef OTG_TRANSCEIVER
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/* reset device controller */
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langwell_udc_reset(dev);
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#endif
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/* initialize gadget structure */
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dev->gadget.ops = &langwell_ops; /* usb_gadget_ops */
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@ -3268,9 +3196,6 @@ static int langwell_udc_probe(struct pci_dev *pdev,
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INIT_LIST_HEAD(&dev->gadget.ep_list); /* ep_list */
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dev->gadget.speed = USB_SPEED_UNKNOWN; /* speed */
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dev->gadget.max_speed = USB_SPEED_HIGH; /* support dual speed */
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#ifdef OTG_TRANSCEIVER
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dev->gadget.is_otg = 1; /* support otg mode */
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#endif
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/* the "gadget" abstracts/virtualizes the controller */
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dev_set_name(&dev->gadget.dev, "gadget");
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@ -3282,10 +3207,8 @@ static int langwell_udc_probe(struct pci_dev *pdev,
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/* controller endpoints reinit */
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eps_reinit(dev);
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#ifndef OTG_TRANSCEIVER
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/* reset ep0 dQH and endptctrl */
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ep0_reset(dev);
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#endif
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/* create dTD dma_pool resource */
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dev->dtd_pool = dma_pool_create("langwell_dtd",
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@ -3525,22 +3448,14 @@ static struct pci_driver langwell_pci_driver = {
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static int __init init(void)
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{
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#ifdef OTG_TRANSCEIVER
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return langwell_register_peripheral(&langwell_pci_driver);
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#else
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return pci_register_driver(&langwell_pci_driver);
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#endif
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}
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module_init(init);
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static void __exit cleanup(void)
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{
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#ifdef OTG_TRANSCEIVER
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return langwell_unregister_peripheral(&langwell_pci_driver);
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#else
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pci_unregister_driver(&langwell_pci_driver);
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#endif
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}
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module_exit(cleanup);
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@ -8,7 +8,6 @@
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*/
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#include <linux/usb/langwell_udc.h>
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#include <linux/usb/langwell_otg.h>
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/*-------------------------------------------------------------------------*/
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