56b75b51ed
The firmware found in some Qualcomm platforms intercepts writes to the S2CR register in order to replace the BYPASS type with FAULT. Further more it treats faults at this level as catastrophic and restarts the device. Add support for providing implementation specific versions of the S2CR write function, to allow the Qualcomm driver to work around this behavior. Cc: <stable@vger.kernel.org> Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org> Tested-by: Steev Klimaszewski <steev@kali.org> Reviewed-by: Robin Murphy <robin.murphy@arm.com> Link: https://lore.kernel.org/r/20201019182323.3162386-2-bjorn.andersson@linaro.org Signed-off-by: Will Deacon <will@kernel.org> |
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