• Russell King's avatar
    mmc: sdhci: improve ADMA error reporting · d1c536e3
    Russell King authored
    
    
    ADMA errors are potentially data corrupting events; although we print
    the register state, we do not usefully print the ADMA descriptors.
    Worse than that, we print them by referencing their virtual address
    which is meaningless when the register state gives us the DMA address
    of the failing descriptor.
    
    Print the ADMA descriptors giving their DMA addresses rather than their
    virtual addresses, and print them using SDHCI_DUMP() rather than DBG().
    
    We also do not show the correct value of the interrupt status register;
    the register dump shows the current value, after we have cleared the
    pending interrupts we are going to service.  What is more useful is to
    print the interrupts that _were_ pending at the time the ADMA error was
    encountered.  Fix that too.
    
    Signed-off-by: default avatarRussell King <rmk+kernel@armlinux.org.uk>
    Acked-by: default avatarAdrian Hunter <adrian.hunter@intel.com>
    Cc: stable@vger.kernel.org
    Signed-off-by: default avatarUlf Hansson <ulf.hansson@linaro.org>
    d1c536e3