According to On-The-Go and Embedded Host Supplement to the USB Revision 2.0 Specification, a Targeted Host (non-PC host, OTG or Embedded host) is not required to support operation with all types of USB peripherals. It is up to the manufacturer of each Targeted Host to declare which peripherals the host will support and provide a list of those peripherals. This is called the Targeted Host's "Targeted Peripheral List" (TPL). The TPL shall accurately represent the device classes supported by the Targeted Host.
And the TPL support is a must for USB OTG & EH certification test, and TPL support needs to apply for both OTG and EH, it should be decided by platform setting. This patchset changes TPL support behaviour like below: - Apply possible TPL support for all kinds of host - Effect TPL in code is decided by both configuration (CONFIG_USB_OTG_WHITELIST) and platform flag, it can avoid the enumeration failure by choosing TPL configuration wrongly. Peter Chen (6): usb: hcd: add TPL support flag usb: core: TPL should apply for both OTG and EH usb: core: Kconfig: TPL should apply for both OTG and EH usb: common: add API to get if the platform supports TPL usb: chipidea: add TPL support for targeted hosts doc: dt-binding: ci-hdrc-imx: add TPL support .../devicetree/bindings/usb/ci-hdrc-imx.txt | 2 ++ drivers/usb/chipidea/core.c | 4 ++++ drivers/usb/chipidea/host.c | 1 + drivers/usb/common/usb-common.c | 15 +++++++++++++ drivers/usb/core/Kconfig | 12 +++-------- drivers/usb/core/hub.c | 20 +++--------------- drivers/usb/core/otg_whitelist.h | 22 +++++++++----------- include/linux/usb/chipidea.h | 1 + include/linux/usb/hcd.h | 1 + include/linux/usb/of.h | 5 +++++ 10 files changed, 45 insertions(+), 38 deletions(-) -- 1.7.9.5 -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
