On 23 May 2018 at 10:31, Kai Heng Feng <kai.heng.feng@xxxxxxxxxxxxx> wrote: > Hi Alan, > > I just discussed with Ritesh about commit [1]. > > Since it was concluded to be hardware problem, is it okay to revert [1]? I don't think so. > The end goal is to keep the card reader runtime suspended to reduce power > consumption. Sounds like a call to pm_suspend_ignore_children() should be called for the USB parent device, conditionally, when the HW works as you suggest. Would that work instead? > > I just tested the rtsx_usb_ms device at my hand, and it has no problem to > detect the card without [1] when the card reader is runtime suspended. > I also doesn't see any error when doing I/O to the Memory Stick. > During the test, I also reverted [2] to make sure the rtsx_usb_sdmmc doesn't > wake up the device. > > [1] > https://github.com/torvalds/linux/commit/796aa46adf1d90eab36ae06a42e6d3f10b28a75c > [2] > https://github.com/torvalds/linux/commit/9250aea76bfcbf4c2a7868e5566281bf2bb7af27 > > Kai-Heng Kind regards Uffe -- To unsubscribe from this list: send the line "unsubscribe linux-mmc" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
