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d20f780799
This patch adds response to a_alt_hnp_support set feature request from legacy A device, that is, B-device can provide a message to the user indicating that the user needs to connect the B-device to an alternate port on the A-device. A device sets this feature indicates to the B-device that it is connected to an A-device port that is not capable of HNP, but that the A-device does have an alternate port that is capable of HNP. [Peter] Without this patch, the OTG B device can't be enumerated on non-HNP port at A device, see below log: [ 2.287464] usb 1-1: Dual-Role OTG device on non-HNP port [ 2.293105] usb 1-1: can't set HNP mode: -32 [ 2.417422] usb 1-1: new high-speed USB device number 4 using ci_hdrc [ 2.460635] usb 1-1: Dual-Role OTG device on non-HNP port [ 2.466424] usb 1-1: can't set HNP mode: -32 [ 2.587464] usb 1-1: new high-speed USB device number 5 using ci_hdrc [ 2.630649] usb 1-1: Dual-Role OTG device on non-HNP port [ 2.636436] usb 1-1: can't set HNP mode: -32 [ 2.641003] usb usb1-port1: unable to enumerate USB device Cc: stable <stable@vger.kernel.org> Acked-by: Peter Chen <peter.chen@freescale.com> Signed-off-by: Li Jun <b47624@freescale.com> Signed-off-by: Peter Chen <peter.chen@freescale.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
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| .. | ||
| bits.h | ||
| ci_hdrc_imx.c | ||
| ci_hdrc_imx.h | ||
| ci_hdrc_msm.c | ||
| ci_hdrc_pci.c | ||
| ci_hdrc_usb2.c | ||
| ci_hdrc_zevio.c | ||
| ci.h | ||
| core.c | ||
| debug.c | ||
| debug.h | ||
| host.c | ||
| host.h | ||
| Kconfig | ||
| Makefile | ||
| otg_fsm.c | ||
| otg_fsm.h | ||
| otg.c | ||
| otg.h | ||
| udc.c | ||
| udc.h | ||
| usbmisc_imx.c | ||