Change since v1:
optimize the export connect type patch and adjust the DeviceRemovalbe
flag
in the rh_call_control() after GetHubDescriptor request being processed.
move all debounce operation to usb port's runtime resume callback(). Add
did_runtime_put in the struct usb_port to call pm_runtime_get/put(portdev)
paired.
using pm_runtime_get/put(portdev) to allow or prohibit device to be power
off inside of pm qos request in the kernel side.
This patchset is to add usb port power off mechanism and
merge with patchset "usb: expose DeviceRemovable to user space via sysfs
attribute".
Patchset "usb: expose DeviceRemovable to user space via sysfs attribute".
http://marc.info/?l=linux-usb&m=135279430410171&w=2 with some link break
corrects
The main discussion about usb port power off mechanism is in the following link:
http://marc.info/?l=linux-usb&m=134818340017208&w=2
usb: Add driver/usb/core/(port.c,hub.h) files
USB: Set usb port's DeviceRemovable according acpi information
usb: Add "portX/connect_type" attribute to expose usb port's connect type
usb: Create link files between child device and usb port device.
usb: Register usb port's acpi power resources
usb: add runtime pm support for usb port device
usb: add usb port auto power off mechanism
usb: expose usb port's pm qos flags to user space
usb: add usb_device_allow_power_off() function
git diff --stat
drivers/usb/core/Makefile | 1 +
drivers/usb/core/hcd.c | 4 +++
drivers/usb/core/hub.c | 288
+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++---------------------------------------------------------------
drivers/usb/core/hub.h | 110
+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
drivers/usb/core/port.c | 189
+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
drivers/usb/core/usb-acpi.c | 20 ++++++++++++
drivers/usb/core/usb.h | 9 +++++
7 files changed, 507 insertions(+), 114 deletions(-)
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