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[RFC] soundwire: cadence_master: wait for HW reset before clock stop #2694

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[RFC] soundwire: cadence_master: wait for HW reset before clock stop #2694

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6 changes: 6 additions & 0 deletions drivers/soundwire/cadence_master.c
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Original file line number Diff line number Diff line change
Expand Up @@ -1410,6 +1410,12 @@ int sdw_cdns_clock_stop(struct sdw_cdns *cdns, bool block_wake)
*/
cdns_enable_slave_interrupts(cdns, false);

ret = cdns_set_wait(cdns, CDNS_MCP_CONTROL, CDNS_MCP_CONTROL_HW_RST, 0);
if (ret < 0) {
dev_err(cdns->dev, "cdns HW reset not finished yet %d\n", ret);
return ret;
}

/*
* For specific platforms, it is required to be able to put
* master into a state in which it ignores wake-up trials
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