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>
diff --git a/drivers/usb/dwc3/dwc3-omap.c b/drivers/usb/dwc3/dwc3-omap.c
index 0bdc5e9..c8a1bc5 100644
--- a/drivers/usb/dwc3/dwc3-omap.c
+++ b/drivers/usb/dwc3/dwc3-omap.c
@@ -48,6 +48,7 @@
#include <linux/io.h>
#include <linux/module.h>
+#include "core.h"
#include "io.h"
/*
@@ -200,6 +201,7 @@
struct dwc3_omap *omap;
struct resource *res;
+ int devid;
int ret = -ENOMEM;
int irq;
@@ -236,16 +238,20 @@
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 @@
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 @@
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 @@
platform_device_unregister(omap->dwc3);
+ dwc3_put_device_id(omap->dwc3->id);
free_irq(omap->irq, omap);
iounmap(omap->base);