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usb: common: add API to update usb otg capabilities by device tree

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Check property of usb hardware to update otg version and disable SRP, HNP
and ADP if its disable flag is present.

Reviewed-by: Roger Quadros <rogerq@ti.com>
Signed-off-by: Li Jun <jun.li@freescale.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
This commit is contained in:
Li Jun
2015-07-09 15:18:44 +08:00
committed by Felipe Balbi
parent b5513dede7
commit 929412d94f
2 changed files with 63 additions and 0 deletions
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7
include/linux/usb/of.h
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@@ -15,6 +15,8 @@
enum usb_dr_mode of_usb_get_dr_mode(struct device_node *np);
enum usb_device_speed of_usb_get_maximum_speed(struct device_node *np);
bool of_usb_host_tpl_support(struct device_node *np);
int of_usb_update_otg_caps(struct device_node *np,
struct usb_otg_caps *otg_caps);
#else
static inline enum usb_dr_mode of_usb_get_dr_mode(struct device_node *np)
{
@@ -30,6 +32,11 @@ static inline bool of_usb_host_tpl_support(struct device_node *np)
{
return false;
}
static inline int of_usb_update_otg_caps(struct device_node *np,
struct usb_otg_caps *otg_caps)
{
return 0;
}
#endif
#if IS_ENABLED(CONFIG_OF) && IS_ENABLED(CONFIG_USB_SUPPORT)