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usb: dwc3: omap: add multiple instances support to OMAP 

if we ever have an omap with multiple instances of
the DWC3 IP, we need unique names for them. In order
to achieve that, let's use the dwc3_get/put_device_id()
calls to give us an unique device identifier.

Signed-off-by: Felipe Balbi <balbi@ti.com>
This commit is contained in:
Felipe Balbi 2011-10-18 13:58:30 +03:00
parent 8300dd236e
commit 5ddcee27c1
1 changed files with 19 additions and 9 deletions
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28
drivers/usb/dwc3/dwc3-omap.c
View File

@ -48,6 +48,7 @@
#include <linux/io.h>
#include <linux/module.h>
#include "core.h"
#include "io.h"
/*
@ -200,6 +201,7 @@ static int __devinit dwc3_omap_probe(struct platform_device *pdev)
struct dwc3_omap *omap;
struct resource *res;
int devid;
int ret = -ENOMEM;
int irq;
@ -236,16 +238,20 @@ static int __devinit dwc3_omap_probe(struct platform_device *pdev)
goto err1;
}
dwc3 = platform_device_alloc("dwc3", -1);
devid = dwc3_get_device_id();
if (devid < 0)
goto err2;
dwc3 = platform_device_alloc("dwc3", devid);
if (!dwc3) {
dev_err(&pdev->dev, "couldn't allocate dwc3 device\n");
goto err2;
goto err3;
}
context = kzalloc(resource_size(res), GFP_KERNEL);
if (!context) {
dev_err(&pdev->dev, "couldn't allocate dwc3 context memory\n");
goto err3;
goto err4;
}
spin_lock_init(&omap->lock);
@ -299,7 +305,7 @@ static int __devinit dwc3_omap_probe(struct platform_device *pdev)
if (ret) {
dev_err(&pdev->dev, "failed to request IRQ #%d --> %d\n",
omap->irq, ret);
goto err4;
goto err5;
}
/* enable all IRQs */
@ -322,26 +328,29 @@ static int __devinit dwc3_omap_probe(struct platform_device *pdev)
pdev->num_resources);
if (ret) {
dev_err(&pdev->dev, "couldn't add resources to dwc3 device\n");
goto err5;
goto err6;
}
ret = platform_device_add(dwc3);
if (ret) {
dev_err(&pdev->dev, "failed to register dwc3 device\n");
goto err5;
goto err6;
}
return 0;
err5:
err6:
free_irq(omap->irq, omap);
err4:
err5:
kfree(omap->context);
err3:
err4:
platform_device_put(dwc3);
err3:
dwc3_put_device_id(devid);
err2:
iounmap(base);
@ -358,6 +367,7 @@ static int __devexit dwc3_omap_remove(struct platform_device *pdev)
platform_device_unregister(omap->dwc3);
dwc3_put_device_id(omap->dwc3->id);
free_irq(omap->irq, omap);
iounmap(omap->base);