• Fu, Zhonghui's avatar
    mmc: enable MMC/SD/SDIO device to suspend/resume asynchronously · ec076cd2
    Fu, Zhonghui authored
    Now, PM core supports asynchronous suspend/resume mode for devices
    during system suspend/resume, and the power state transition of one
    device may be completed in separate kernel thread. PM core ensures
    all power state transition dependency between devices. This patch
    enables MMC/SD/SDIO card and SDIO function devices to suspend/resume
    asynchronously. This will take advantage of multicore and improve
    system suspend/resume speed. After applying this patch and enabling
    all SDIO function's child devices to suspend/resume asynchronously
    on ASUS T100TA, the system suspend-to-idle time is reduced from
    1645ms to 1108ms, and the system resume time is reduced from 940ms
    to 918ms.
    Signed-off-by: default avatarZhonghui Fu <zhonghui.fu@linux.intel.com>
    Signed-off-by: default avatarUlf Hansson <ulf.hansson@linaro.org>
    ec076cd2
sdio_bus.c 8 KB