This patchset adds tested otg id switch function and vbus connect and disconnect detection for chipidea driver. And fix kinds of bugs found at chipidea drivers after enabling id and vbus detection. This patch is fully tested at imx6 sabresd platform. My chipidea repo: https://github.com/hzpeterchen/linux-usb.git Changes for v12: - Rebased greg's usb-next tree (3.10.0-rc7+) - Split more small patches for single function and fix. Changes for v11: - mark ci_handle_vbus_change as static as it is only used at core.c [3/9] - Move the vbus operation for platform code to host code, as vbus operation is common operation, and host is the only user for vbus. When it is host mode, we need to open vbus, when it is out of host mode, we need to close vbus. [6/9] [8/9] - Delete the delayed work at core.c as it is not needed. [7/9] Changes for v10: - Delete [8/9] at v9, ci core's drvdata must be set for further operation. [8/8] Changes for v9: - Some small comments from Alex like: variable comment for otg event additional newline. [3/9] - Import function tell show if the controller has otg capable, if the controller supports both host and device, we think it is otg capable, and can read OTGSC. [3/9] - Merge two otg patches [v8 3/8] and [v8 4/8] to one [v9 3/9]. [3/9] - Add inline to ci_hdrc_gadget_destroy if CONFIG_USB_CHIPIDEA_UDC is not defined, it can fix one build warning "defined but not used" [3/9] - One comment from Felipe about changing calling gadget disconnect API at chipidea's udc driver. I move calling ci->driver->disconnect from _gadget_stop_activity to which calls _gadget_stop_activity except ci13xxx_stop, as udc core will call disconnect when do rmmod gadget. [7/9] - Add ci core probe's return value to ci's platform_data, we do this for getting core's probe's result at platform layer, and quit it if the core's probe fails. [8/9] [9/9] Changes for v8: - Add ci_supports_gadget helper to know if the controller supports gadget, if the controller supports gadget, it needs to read otgsc to know the vbus value, basically, if the controller supports gadget, it will support host as well [3/8] - At ci_hdrc_probe, it needs to add free memory at error path [3/8] - Cosolidate ci->driver = NULL at ci13xxx_stop [8/8] Changes for v7: For Patch 8/8, we only need to set ci->driver to NULL when usb cable is not connected, for other changes, it will case some runtime pm unmatch and un-align with udc-core & composite driver problems. Changes for v6: - Add Alex comments for init/destroy function [3/8] [4/8] - Remove memset(&ci->gadget, 0, sizeof(ci->gadget)) at destory function [4/8] - Add Kishon's comment: Change the format of struct usb_otg otg at drivers/usb/chipidea/ci.h [1/8] - Add comments for CI_VBUS_STABLE_TIMEOUT [3/8] - Change the otg_set_peripheral return value check as the fully chipidea driver users don't need it. [4/8] - Fix one bug that the oops when re-plug in usb cable after rmmod gadget [8/8] Peter Chen (13): usb: chipidea: add vbus regulator control usb: chipidea: imx: remove vbus regulator operation usb: chipidea: udc: otg_set_peripheral is useless for some chipidea users usb: chipidea: otg: Add otg file used to access otgsc usb: chipidea: Add role init and destory APIs usb: chipidea: add otg_cap attribute for otg capable usb: chipidea: disable all interrupts and clear all interrupts status usb: chipidea: move otg relate things to otg file usb: chipidea: add vbus interrupt handler usb: chipidea: add wait vbus lower than OTGSC_BSV before role starts usb: chipidea: udc: misuse flag CI_HDRC_REGS_SHARED and CI_HDRC_PULLUP_ON_VBUS usb: chipidea: udc: .pullup is valid when vbus is on at CI_HDRC_PULLUP_ON_VBUS usb: chipidea: udc: fix the oops when plugs in usb cable after rmmod gadget drivers/usb/chipidea/Makefile | 2 +- drivers/usb/chipidea/bits.h | 10 +++ drivers/usb/chipidea/ci.h | 8 ++ drivers/usb/chipidea/ci_hdrc_imx.c | 30 ++----- drivers/usb/chipidea/core.c | 158 +++++++++++++++++++++++------------ drivers/usb/chipidea/host.c | 30 +++++++- drivers/usb/chipidea/host.h | 6 ++ drivers/usb/chipidea/otg.c | 135 ++++++++++++++++++++++++++++++ drivers/usb/chipidea/otg.h | 22 +++++ drivers/usb/chipidea/udc.c | 72 +++++++++++++---- drivers/usb/chipidea/udc.h | 6 ++ include/linux/usb/chipidea.h | 14 +++ 12 files changed, 397 insertions(+), 96 deletions(-) create mode 100644 drivers/usb/chipidea/otg.c create mode 100644 drivers/usb/chipidea/otg.h -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html