mmc: rtsx: Revert "mmc: rtsx: add support for pre_req and post_req"
This reverts commit c42deffd. commit <mmc: rtsx: add support for pre_req and post_req> did use mutex_unlock() in tasklet, but mutex_unlock() can't be used in tasklet(atomic context). The driver needs to use mutex to avoid concurrency, so we can't use tasklet here, the patch need to be removed. The spinlock host->lock and pcr->lock may deadlock, one way to solve the deadlock is remove host->lock in sd_isr_done_transfer(), but if using workqueue the we can avoid using the spinlock and also avoid the problem. Signed-off-by:Micky Ching <micky_ching@realsil.com.cn> Acked-by:
Ulf Hansson <ulf.hansson@linaro.org> Signed-off-by:
Lee Jones <lee.jones@linaro.org>
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- drivers/mfd/rtsx_pcr.c 41 additions, 91 deletionsdrivers/mfd/rtsx_pcr.c
- drivers/mmc/host/rtsx_pci_sdmmc.c 68 additions, 350 deletionsdrivers/mmc/host/rtsx_pci_sdmmc.c
- include/linux/mfd/rtsx_common.h 0 additions, 1 deletioninclude/linux/mfd/rtsx_common.h
- include/linux/mfd/rtsx_pci.h 0 additions, 6 deletionsinclude/linux/mfd/rtsx_pci.h
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