• Guohua Zhong's avatar
    HID: i2c-hid: set power sleep before shutdown · d9f448e3
    Guohua Zhong authored
    Add i2c_hid_shutdown for i2c-hid driver to send suspend cmd & free
    irq before device shutdown.
    
    Some HW design (i.e. Umaro, a chromebook model) is that the power to
    i2c hid device won't down after device shutdown. Also the i2c-hid driver
    do not send suspend cmd to the hid i2c device and free its irq before
    shutdown.So if We touch the touchscreen or some other i2c hid device,
    the power consumtion will be go up even when the device is in shutdown
    state.
    
    Though the root cause maybe a HW issue. But it seems that it is a
    good pratice to set power sleep for i2c-hid device before shutdown.
    Signed-off-by: default avatarGuohua Zhong <ghzhong@yifangdigital.com>
    Acked-By: default avatarBenjamin Tissoires <benjamin.tissoires@redhat.com>
    Signed-off-by: default avatarJiri Kosina <jkosina@suse.cz>
    d9f448e3
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