diff options
| author | Heiko Stübner <heiko@sntech.de> | 2012-01-08 21:58:28 +0100 |
|---|---|---|
| committer | Felipe Balbi <balbi@ti.com> | 2012-01-24 11:33:21 +0200 |
| commit | 294f78ec493e69b55bcba566d4fe264d041aba8d (patch) | |
| tree | 0bf2a610f9516f559dc470a26b9487bb69c7384e /drivers/usb/gadget/s3c-hsudc.c | |
| parent | 2d4172c938745cfa51c4a91406efb584549c1024 (diff) | |
| download | blackbird-op-linux-294f78ec493e69b55bcba566d4fe264d041aba8d.tar.gz blackbird-op-linux-294f78ec493e69b55bcba566d4fe264d041aba8d.zip | |
usb: s3c-hsudc: add basic runtime_pm calls
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>
Diffstat (limited to 'drivers/usb/gadget/s3c-hsudc.c')
| -rw-r--r-- | drivers/usb/gadget/s3c-hsudc.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/drivers/usb/gadget/s3c-hsudc.c b/drivers/usb/gadget/s3c-hsudc.c index 41b3a583c1a7..5e8729374fba 100644 --- a/drivers/usb/gadget/s3c-hsudc.c +++ b/drivers/usb/gadget/s3c-hsudc.c @@ -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); |
