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| author | Alexander Shishkin <alexander.shishkin@linux.intel.com> | 2012-05-11 18:25:47 +0400 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2012-05-12 03:52:10 +0400 |
| commit | 5f36e231e9dbffb5264612e5b5817ab574a5e5db (patch) | |
| tree | a71027cded532334d3d51cbf737925240d34e7df /drivers/usb/chipidea/udc.h | |
| parent | e443b333629f82ca0da91a05ca638050943bbedd (diff) | |
| download | linux-5f36e231e9dbffb5264612e5b5817ab574a5e5db.tar.xz | |
usb: chipidea: add support for roles
Add some generic code for roles and implement simple role switching
based on ID pin state and/or a sysfs file. At this, we also rename
the device to ci_hdrc, which is what it is.
The "manual" switch is made into a sysfs file and not debugfs, because
it might be useful even in non-debug context. For some boards, like
sheevaplug, it seems to be the only way to switch roles without modifying
the hardware, since the ID pin is always grounded.
Signed-off-by: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/usb/chipidea/udc.h')
| -rw-r--r-- | drivers/usb/chipidea/udc.h | 20 |
1 files changed, 5 insertions, 15 deletions
diff --git a/drivers/usb/chipidea/udc.h b/drivers/usb/chipidea/udc.h index 82c9e3e772f7..3a9e6694f327 100644 --- a/drivers/usb/chipidea/udc.h +++ b/drivers/usb/chipidea/udc.h @@ -71,26 +71,16 @@ struct ci13xxx_req { }; #ifdef CONFIG_USB_CHIPIDEA_UDC -irqreturn_t udc_irq(int irq, void *data); -int udc_probe(struct ci13xxx_udc_driver *driver, struct device *dev, - void __iomem *regs, struct ci13xxx **_udc); -void udc_remove(struct ci13xxx *udc); + +int ci_hdrc_gadget_init(struct ci13xxx *ci); + #else -static inline irqreturn_t udc_irq(int irq, void *data) -{ - return IRQ_NONE; -} -static inline -int udc_probe(struct ci13xxx_udc_driver *driver, struct device *dev, - void __iomem *regs, struct ci13xxx **_udc) +static inline int ci_hdrc_gadget_init(struct ci13xxx *ci) { - return -ENODEV; + return -ENXIO; } -static inline void udc_remove(struct ci13xxx *udc) -{ -} #endif #endif /* __DRIVERS_USB_CHIPIDEA_UDC_H */ |