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soundwire: cadance_master: fix a io timeout issue in S3 test #10

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soundwire: cadance_master: fix a io timeout issue in S3 test #10

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3 changes: 3 additions & 0 deletions drivers/soundwire/cadence_master.c
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Original file line number Diff line number Diff line change
Expand Up @@ -1049,6 +1049,9 @@ int sdw_cdns_init(struct sdw_cdns *cdns)
cdns_writel(cdns, CDNS_MCP_SSP_CTRL0, CDNS_DEFAULT_SSP_INTERVAL);
cdns_writel(cdns, CDNS_MCP_SSP_CTRL1, CDNS_DEFAULT_SSP_INTERVAL);

/* reset msg_count to default value of FIFOLEVEL */
cdns->msg_count = cdns_readl(cdns, CDNS_MCP_FIFOLEVEL);

/* flush command FIFOs */
cdns_updatel(cdns, CDNS_MCP_CONTROL, CDNS_MCP_CONTROL_CMD_RST,
CDNS_MCP_CONTROL_CMD_RST);
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