ASoC: qcom: lpass-platform: Update VMA access permissions in mmap callback

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Replace page protection permissions from noncashed to writecombine,
in lpass codec DMA path mmp callabck, to support 64 bit chromeOS.
Avoid SIGBUS error in userspace caused by noncached permissions in
64 bit chromeOS.

Signed-off-by: Srinivasa Rao Mandadapu <quic_srivasam@quicinc.com>
Link: https://lore.kernel.org/r/1653660608-27245-1-git-send-email-quic_srivasam@quicinc.com
Signed-off-by: Mark Brown <broonie@kernel.org>

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Srinivasa Rao Mandadapu 2022-05-27 19:40:08 +05:30 • committed by Mark Brown

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sound/soc/qcom/lpass-platform.c

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