ARM: OMAP: USBHOST: Replace usbhs core driver APIs by Runtime pm APIs
The ehci and ohci drivers does not use the APIs of the usbhs
core driver; the runtime pm APIs are used for clock
enable/disable. Since usbhs is parent platform device of the
ehci and ohci devices, the runtime apis indirectly uses the
usb hs core device as input parameter to for clock functions.
Signed-off-by: Keshava Munegowda <keshava_mgowda@ti.com>
Reviewed-by: Kevin Hilman <khilman@ti.com>
Reviewed-by: Partha Basak <parthab@india.ti.com>
Acked-by: Felipe Balbi <balbi@ti.com>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Paul Walmsley <paul@pwsan.com>
diff --git a/drivers/usb/host/ohci-omap3.c b/drivers/usb/host/ohci-omap3.c
index 516ebc4..1b8133b 100644
--- a/drivers/usb/host/ohci-omap3.c
+++ b/drivers/usb/host/ohci-omap3.c
@@ -31,6 +31,7 @@
#include <linux/platform_device.h>
#include <plat/usb.h>
+#include <linux/pm_runtime.h>
/*-------------------------------------------------------------------------*/
@@ -134,7 +135,7 @@
int irq;
if (usb_disabled())
- goto err_end;
+ return -ENODEV;
if (!dev->parent) {
dev_err(dev, "Missing parent device\n");
@@ -172,11 +173,8 @@
hcd->rsrc_len = resource_size(res);
hcd->regs = regs;
- ret = omap_usbhs_enable(dev);
- if (ret) {
- dev_dbg(dev, "failed to start ohci\n");
- goto err_end;
- }
+ pm_runtime_enable(dev);
+ pm_runtime_get_sync(dev);
ohci_hcd_init(hcd_to_ohci(hcd));
@@ -189,9 +187,7 @@
return 0;
err_add_hcd:
- omap_usbhs_disable(dev);
-
-err_end:
+ pm_runtime_put_sync(dev);
usb_put_hcd(hcd);
err_io:
@@ -220,9 +216,9 @@
iounmap(hcd->regs);
usb_remove_hcd(hcd);
- omap_usbhs_disable(dev);
+ pm_runtime_put_sync(dev);
+ pm_runtime_disable(dev);
usb_put_hcd(hcd);
-
return 0;
}