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| author | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2020-07-29 14:57:09 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2020-07-29 14:57:09 +0300 |
| commit | 107c89497545232acac83d71600d8030b7361ca2 (patch) | |
| tree | 9dc8e1f46d35440fce42d3a1ba7320ec7b6bb429 /drivers/usb/chipidea/core.c | |
| parent | fa56dd9152ef955bd21082c5330e4dff8621bca6 (diff) | |
| parent | d6f93d21001e4388a25b0b922e02e64bc6004d2f (diff) | |
| download | linux-107c89497545232acac83d71600d8030b7361ca2.tar.xz | |
Merge tag 'usb-ci-v5.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/peter.chen/usb into usb-next
Peter writes:
ENDIAN issue fix and one query controller role API is introduced.
* tag 'usb-ci-v5.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/peter.chen/usb:
usb: chipidea: imx: get available runtime dr mode for wakeup setting
usb: chipidea: add query_available_role interface
Documentation: ABI: usb: chipidea: Update Li Jun's e-mail
usb: chipidea: udc: fix the ENDIAN issue
Diffstat (limited to 'drivers/usb/chipidea/core.c')
| -rw-r--r-- | drivers/usb/chipidea/core.c | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/drivers/usb/chipidea/core.c b/drivers/usb/chipidea/core.c index 5c2de8185097..aa40e510b806 100644 --- a/drivers/usb/chipidea/core.c +++ b/drivers/usb/chipidea/core.c @@ -878,6 +878,33 @@ void ci_hdrc_remove_device(struct platform_device *pdev) } EXPORT_SYMBOL_GPL(ci_hdrc_remove_device); +/** + * ci_hdrc_query_available_role: get runtime available operation mode + * + * The glue layer can get current operation mode (host/peripheral/otg) + * This function should be called after ci core device has created. + * + * @pdev: the platform device of ci core. + * + * Return runtime usb_dr_mode. + */ +enum usb_dr_mode ci_hdrc_query_available_role(struct platform_device *pdev) +{ + struct ci_hdrc *ci = platform_get_drvdata(pdev); + + if (!ci) + return USB_DR_MODE_UNKNOWN; + if (ci->roles[CI_ROLE_HOST] && ci->roles[CI_ROLE_GADGET]) + return USB_DR_MODE_OTG; + else if (ci->roles[CI_ROLE_HOST]) + return USB_DR_MODE_HOST; + else if (ci->roles[CI_ROLE_GADGET]) + return USB_DR_MODE_PERIPHERAL; + else + return USB_DR_MODE_UNKNOWN; +} +EXPORT_SYMBOL_GPL(ci_hdrc_query_available_role); + static inline void ci_role_destroy(struct ci_hdrc *ci) { ci_hdrc_gadget_destroy(ci); |