[ARM] 5526/1: ep93xx: usb driver cleanup
Cleanup the ohci-ep93xx driver.
1) Use the usb.h dbg() macro instead of pr_debug() so that
the source filename is prefixed to the message and it is
terminated with a linefeed.
2) Add error handling for the clk_get() call.
3) Update clkdev support so that the usb clock is matched by
the dev_id instead of the con_id.
Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
diff --git a/drivers/usb/host/ohci-ep93xx.c b/drivers/usb/host/ohci-ep93xx.c
index 7cf74f8..b0dbf41 100644
--- a/drivers/usb/host/ohci-ep93xx.c
+++ b/drivers/usb/host/ohci-ep93xx.c
@@ -47,7 +47,7 @@
struct usb_hcd *hcd;
if (pdev->resource[1].flags != IORESOURCE_IRQ) {
- pr_debug("resource[1] is not IORESOURCE_IRQ");
+ dbg("resource[1] is not IORESOURCE_IRQ");
return -ENOMEM;
}
@@ -65,12 +65,18 @@
hcd->regs = ioremap(hcd->rsrc_start, hcd->rsrc_len);
if (hcd->regs == NULL) {
- pr_debug("ioremap failed");
+ dbg("ioremap failed");
retval = -ENOMEM;
goto err2;
}
- usb_host_clock = clk_get(&pdev->dev, "usb_host");
+ usb_host_clock = clk_get(&pdev->dev, NULL);
+ if (IS_ERR(usb_host_clock)) {
+ dbg("clk_get failed");
+ retval = PTR_ERR(usb_host_clock);
+ goto err3;
+ }
+
ep93xx_start_hc(&pdev->dev);
ohci_hcd_init(hcd_to_ohci(hcd));
@@ -80,6 +86,7 @@
return retval;
ep93xx_stop_hc(&pdev->dev);
+err3:
iounmap(hcd->regs);
err2:
release_mem_region(hcd->rsrc_start, hcd->rsrc_len);