Release 4.9 drivers/usb/dwc3/host.c
/**
* host.c - DesignWare USB3 DRD Controller Host Glue
*
* Copyright (C) 2011 Texas Instruments Incorporated - http://www.ti.com
*
* Authors: Felipe Balbi <balbi@ti.com>,
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 of
* the License as published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*/
#include <linux/platform_device.h>
#include "core.h"
int dwc3_host_init(struct dwc3 *dwc)
{
struct property_entry props[2];
struct platform_device *xhci;
int ret, irq;
struct resource *res;
struct platform_device *dwc3_pdev = to_platform_device(dwc->dev);
irq = platform_get_irq_byname(dwc3_pdev, "host");
if (irq == -EPROBE_DEFER)
return irq;
if (irq <= 0) {
irq = platform_get_irq_byname(dwc3_pdev, "dwc_usb3");
if (irq == -EPROBE_DEFER)
return irq;
if (irq <= 0) {
irq = platform_get_irq(dwc3_pdev, 0);
if (irq <= 0) {
if (irq != -EPROBE_DEFER) {
dev_err(dwc->dev,
"missing host IRQ\n");
}
if (!irq)
irq = -EINVAL;
return irq;
} else {
res = platform_get_resource(dwc3_pdev,
IORESOURCE_IRQ, 0);
}
} else {
res = platform_get_resource_byname(dwc3_pdev,
IORESOURCE_IRQ,
"dwc_usb3");
}
} else {
res = platform_get_resource_byname(dwc3_pdev, IORESOURCE_IRQ,
"host");
}
dwc->xhci_resources[1].start = irq;
dwc->xhci_resources[1].end = irq;
dwc->xhci_resources[1].flags = res->flags;
dwc->xhci_resources[1].name = res->name;
xhci = platform_device_alloc("xhci-hcd", PLATFORM_DEVID_AUTO);
if (!xhci) {
dev_err(dwc->dev, "couldn't allocate xHCI device\n");
return -ENOMEM;
}
dma_set_coherent_mask(&xhci->dev, dwc->dev->coherent_dma_mask);
xhci->dev.parent = dwc->dev;
xhci->dev.dma_mask = dwc->dev->dma_mask;
xhci->dev.dma_parms = dwc->dev->dma_parms;
dwc->xhci = xhci;
ret = platform_device_add_resources(xhci, dwc->xhci_resources,
DWC3_XHCI_RESOURCES_NUM);
if (ret) {
dev_err(dwc->dev, "couldn't add resources to xHCI device\n");
goto err1;
}
memset(props, 0, sizeof(struct property_entry) * ARRAY_SIZE(props));
if (dwc->usb3_lpm_capable) {
props[0].name = "usb3-lpm-capable";
ret = platform_device_add_properties(xhci, props);
if (ret) {
dev_err(dwc->dev, "failed to add properties to xHCI\n");
goto err1;
}
}
phy_create_lookup(dwc->usb2_generic_phy, "usb2-phy",
dev_name(&xhci->dev));
phy_create_lookup(dwc->usb3_generic_phy, "usb3-phy",
dev_name(&xhci->dev));
ret = platform_device_add(xhci);
if (ret) {
dev_err(dwc->dev, "failed to register xHCI device\n");
goto err2;
}
return 0;
err2:
phy_remove_lookup(dwc->usb2_generic_phy, "usb2-phy",
dev_name(&xhci->dev));
phy_remove_lookup(dwc->usb3_generic_phy, "usb3-phy",
dev_name(&xhci->dev));
err1:
platform_device_put(xhci);
return ret;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| roger quadros | roger quadros | 211 | 40.58% | 1 | 11.11% |
| felipe balbi | felipe balbi | 162 | 31.15% | 2 | 22.22% |
| heikki krogerus | heikki krogerus | 104 | 20.00% | 2 | 22.22% |
| pratyush anand | pratyush anand | 35 | 6.73% | 1 | 11.11% |
| ido shayevitz | ido shayevitz | 4 | 0.77% | 1 | 11.11% |
| robert baldyga | robert baldyga | 3 | 0.58% | 1 | 11.11% |
| vivek gautam | vivek gautam | 1 | 0.19% | 1 | 11.11% |
| Total | 520 | 100.00% | 9 | 100.00% |
void dwc3_host_exit(struct dwc3 *dwc)
{
phy_remove_lookup(dwc->usb2_generic_phy, "usb2-phy",
dev_name(&dwc->xhci->dev));
phy_remove_lookup(dwc->usb3_generic_phy, "usb3-phy",
dev_name(&dwc->xhci->dev));
platform_device_unregister(dwc->xhci);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| heikki krogerus | heikki krogerus | 38 | 69.09% | 1 | 50.00% |
| felipe balbi | felipe balbi | 17 | 30.91% | 1 | 50.00% |
| Total | 55 | 100.00% | 2 | 100.00% |
Overall Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| roger quadros | roger quadros | 211 | 36.25% | 1 | 10.00% |
| felipe balbi | felipe balbi | 186 | 31.96% | 3 | 30.00% |
| heikki krogerus | heikki krogerus | 142 | 24.40% | 2 | 20.00% |
| pratyush anand | pratyush anand | 35 | 6.01% | 1 | 10.00% |
| ido shayevitz | ido shayevitz | 4 | 0.69% | 1 | 10.00% |
| robert baldyga | robert baldyga | 3 | 0.52% | 1 | 10.00% |
| vivek gautam | vivek gautam | 1 | 0.17% | 1 | 10.00% |
| Total | 582 | 100.00% | 10 | 100.00% |