mmc: msm_sdcc: Reset SPS BAM on error recovery
In the current soft reset sequence performed as part of
CMD/DATA error recovery we do the following:
1) Write 1 to DML_SW_RESET
2) Reset CPSM/DPSM by clearing MCI_CMD and MCI_DATA_CTL
or by writing to MCI_SW_RST_CONFIG.
3) Re-init DML
4) Reconfigure both consumer and producer BAM pipes.
The BAM pipe reset does not reset the sideband signals, since
only SDCC side is reset SDCC - BAM communication will go out
of sync and cause DML to be stuck without transferring data.
Hence reset BAM core every time SDCC is reset (which is on
error recovery).
Fix error handling for sps pipe or device reset.
Change-Id: I745e015c862fffa36a814cd007d2e82383668b3a
Signed-off-by: Venkat Gopalakrishnan <venkatg@codeaurora.org>
Signed-off-by: Krishna Konda <kkonda@codeaurora.org>
2 files changed