soundwire: cadence_master: clear interrupt status before enabling interrupt (5ebb0945) · Commits · 戴 / test

make sure all interrupts status are cleared before enabling interrupt so that there is no unexpected interrupt triggered. Signed-off-by:

drivers/soundwire/cadence_master.c

+10 −0

Original line number	Diff line number	Diff line
		@@ -856,6 +856,16 @@ int sdw_cdns_enable_interrupt(struct sdw_cdns *cdns, bool state)
		mask = interrupt_mask;

		update_masks:
		/* clear slave interrupt status before enabling interrupt */
		if (state) {
		u32 slave_state;

		slave_state = cdns_readl(cdns, CDNS_MCP_SLAVE_INTSTAT0);
		cdns_writel(cdns, CDNS_MCP_SLAVE_INTSTAT0, slave_state);
		slave_state = cdns_readl(cdns, CDNS_MCP_SLAVE_INTSTAT1);
		cdns_writel(cdns, CDNS_MCP_SLAVE_INTSTAT1, slave_state);
		}

		cdns_writel(cdns, CDNS_MCP_SLAVE_INTMASK0, slave_intmask0);
		cdns_writel(cdns, CDNS_MCP_SLAVE_INTMASK1, slave_intmask1);
		cdns_writel(cdns, CDNS_MCP_INTMASK, mask);