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MLK-13712 dmaengine: fsl-edma: restore edma registers for i.MX7ULP VLLS mode
authorAndy Duan <fugang.duan@nxp.com>
Sat, 31 Dec 2016 08:01:32 +0000 (16:01 +0800)
committerNitin Garg <nitin.garg@nxp.com>
Mon, 19 Mar 2018 20:21:44 +0000 (15:21 -0500)
commitb0f685f332aff0ea43abac15ff79d8eb4cf4e9e0
tree8a28181445921e10173a776038f04899a39eefbatree | snapshot
parent442cd5fa39395de92e0bbb46b10d7676cda029fbcommit | diff
MLK-13712 dmaengine: fsl-edma: restore edma registers for i.MX7ULP VLLS mode

EDMA controller will loss power on i.MX7ULP VLLS mode, then registers
are set to HW reset default value that cause EDMA cannot work after
system wake up. So the patch is to restore eDMA registers status after
system exit from VLLS mode.

Signed-off-by: Fugang Duan <fugang.duan@nxp.com>
(cherry picked from commit:bc15f814383d)

Conflicts:
drivers/dma/fsl-edma.c
Documentation/devicetree/bindings/dma/fsl-edma.txt diff | blob | history
drivers/dma/fsl-edma.c diff | blob | history