slimbus: ngd: reset dma setup during runtime pm
authorSrinivas Kandagatla <srinivas.kandagatla@linaro.org>
Mon, 9 Aug 2021 08:24:28 +0000 (09:24 +0100)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Fri, 13 Aug 2021 08:22:30 +0000 (10:22 +0200)
commitd77772538f00b7265deace6e77e555ee18365ad0
treecbd4c99ee5e970c704128fce076eacb2f0c8d6bd
parentc0e38eaa8d5102c138e4f16658ea762417d42a8f
slimbus: ngd: reset dma setup during runtime pm

During suspend/resume NGD remote instance is power cycled along
with remotely controlled bam dma engine.
So Reset the dma configuration during this suspend resume path
so that we are not dealing with any stale dma setup.

Without this transactions timeout after first suspend resume path.

Fixes: 917809e2280b ("slimbus: ngd: Add qcom SLIMBus NGD driver")
Cc: <stable@vger.kernel.org>
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Link: https://lore.kernel.org/r/20210809082428.11236-5-srinivas.kandagatla@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
drivers/slimbus/qcom-ngd-ctrl.c