diff options
| author | Li Jun <jun.li@freescale.com> | 2015-06-17 16:34:25 +0800 |
|---|---|---|
| committer | Nitin Garg <nitin.garg@freescale.com> | 2015-09-17 09:23:51 -0500 |
| commit | 9168a980005e3370207079aff5ae4fdca89be142 (patch) | |
| tree | 80e7c93e9a03c4ebe2f35296a047b86e73304b4e /drivers/usb | |
| parent | c8bbb07194ba64f8b05d9bc2ab7aea98304c1983 (diff) | |
MLK-11123-7 usb: common: add API to set otg features by device tree
Check property of usb hardware to get otg version and if SRP, HNP and ADP
are disabled.
Signed-off-by: Li Jun <jun.li@freescale.com>
Diffstat (limited to 'drivers/usb')
| -rw-r--r-- | drivers/usb/common/usb-common.c | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/drivers/usb/common/usb-common.c b/drivers/usb/common/usb-common.c index f3ebcc99bb7e..c56b883e34c4 100644 --- a/drivers/usb/common/usb-common.c +++ b/drivers/usb/common/usb-common.c @@ -169,6 +169,34 @@ bool of_usb_otg_adp_support(struct device_node *np) return false; } EXPORT_SYMBOL_GPL(of_usb_otg_adp_support); + +/** + * of_usb_set_otg_caps - to set usb otg capabilities according to + * the passed properties in DT. + * @np: Pointer to the given device_node + * @otg_caps: Pointer to the target usb_otg_caps to be set + * + * The function gets and sets the otg capabilities + */ +void of_usb_set_otg_caps(struct device_node *np, struct usb_otg_caps *otg_caps) +{ + u32 otg_rev; + + if (!otg_caps) + return; + + if (!of_property_read_u32(np, "otg-rev", &otg_rev)) + otg_caps->otg_rev = otg_rev; + if (of_find_property(np, "hnp-disable", NULL)) + otg_caps->hnp_support = false; + if (of_find_property(np, "srp-disable", NULL)) + otg_caps->srp_support = false; + if (of_find_property(np, "adp-disable", NULL) || + (otg_caps->otg_rev < 0x0200)) + otg_caps->adp_support = false; +} +EXPORT_SYMBOL_GPL(of_usb_set_otg_caps); + #endif MODULE_LICENSE("GPL"); |