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usb: s3c-hsudc: add basic runtime_pm calls

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This will enable the system to check for activity of the usb gadget
and also in a later patch to control the usbphy power-domain.
When handling the power domain there, it will be possible to remove
another reference to architecture code.

Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Signed-off-by: Felipe Balbi <balbi@ti.com>
This commit is contained in:
Heiko Stübner 2012-01-08 21:58:28 +01:00 committed by Felipe Balbi
parent 2d4172c938
commit 294f78ec49
1 changed files with 9 additions and 0 deletions
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9
drivers/usb/gadget/s3c-hsudc.c
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@ -30,6 +30,7 @@
#include <linux/prefetch.h>
#include <linux/platform_data/s3c-hsudc.h>
#include <linux/regulator/consumer.h>
#include <linux/pm_runtime.h>
#include <mach/regs-s3c2443-clock.h>
@ -1178,6 +1179,9 @@ static int s3c_hsudc_start(struct usb_gadget *gadget,
dev_info(hsudc->dev, "bound driver %s\n", driver->driver.name);
s3c_hsudc_reconfig(hsudc);
pm_runtime_get_sync(hsudc->dev);
s3c_hsudc_init_phy();
if (hsudc->pd->gpio_init)
hsudc->pd->gpio_init();
@ -1208,6 +1212,9 @@ static int s3c_hsudc_stop(struct usb_gadget *gadget,
hsudc->gadget.dev.driver = NULL;
hsudc->gadget.speed = USB_SPEED_UNKNOWN;
s3c_hsudc_uninit_phy();
pm_runtime_put(hsudc->dev);
if (hsudc->pd->gpio_uninit)
hsudc->pd->gpio_uninit();
s3c_hsudc_stop_activity(hsudc);
@ -1362,6 +1369,8 @@ static int __devinit s3c_hsudc_probe(struct platform_device *pdev)
if (ret)
goto err_add_udc;
pm_runtime_enable(dev);
return 0;
err_add_udc:
device_unregister(&hsudc->gadget.dev);