soundwire: cadence: initialize sticky bits for Device0

Follow recommended programming flows, only Device0 sticky interrupt
bits can be enabled before changing the command accept mode and doing
a bus hardware reset.

Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>

drivers/soundwire/cadence_master.c

@@ -1384,6 +1384,10 @@ int sdw_cdns_init(struct sdw_cdns *cdns)
 
  sdw_cdns_check_self_clearing_bits(cdns, __func__, false, 0);
 
+ /* enable sticky bits for Device0 attachment only */
+ cdns_writel(cdns, CDNS_MCP_SLAVE_INTMASK0, GENMASK(1, 0));
+ cdns_writel(cdns, CDNS_MCP_SLAVE_INTMASK1, 0);
+
  /* reset msg_count to default value of FIFOLEVEL */
  cdns->msg_count = cdns_readl(cdns, CDNS_MCP_FIFOLEVEL);