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ARM: OMAP: USBHOST: Replace usbhs core driver APIs by Runtime pm APIs

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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>
This commit is contained in:
Keshava Munegowda
2011-10-11 13:22:11 +05:30
committed by Paul Walmsley
parent a6d3a6622e
commit 6c984b066d
3 changed files with 14 additions and 24 deletions
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18
drivers/usb/host/ohci-omap3.c
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@@ -31,6 +31,7 @@
#include <linux/platform_device.h>
#include <plat/usb.h>
#include <linux/pm_runtime.h>
/*-------------------------------------------------------------------------*/
@@ -134,7 +135,7 @@ static int __devinit ohci_hcd_omap3_probe(struct platform_device *pdev)
int irq;
if (usb_disabled())
goto err_end;
return -ENODEV;
if (!dev->parent) {
dev_err(dev, "Missing parent device\n");
@@ -172,11 +173,8 @@ static int __devinit ohci_hcd_omap3_probe(struct platform_device *pdev)
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 @@ static int __devinit ohci_hcd_omap3_probe(struct platform_device *pdev)
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 @@ static int __devexit ohci_hcd_omap3_remove(struct platform_device *pdev)
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;
}