Adding missing interrupt masks (parity, etc) and missing checks. Clarify which masks are for which usage.
Signed-off-by: Bard Liao yung-chuan.liao@linux.intel.com Signed-off-by: Pierre-Louis Bossart pierre-louis.bossart@linux.intel.com --- drivers/soundwire/cadence_master.c | 25 ++++++++++++++++++++++--- 1 file changed, 22 insertions(+), 3 deletions(-)
diff --git a/drivers/soundwire/cadence_master.c b/drivers/soundwire/cadence_master.c index bdc3ed844829..0f3b9c160b01 100644 --- a/drivers/soundwire/cadence_master.c +++ b/drivers/soundwire/cadence_master.c @@ -76,9 +76,12 @@ #define CDNS_MCP_INT_DPINT BIT(11) #define CDNS_MCP_INT_CTRL_CLASH BIT(10) #define CDNS_MCP_INT_DATA_CLASH BIT(9) +#define CDNS_MCP_INT_PARITY BIT(8) #define CDNS_MCP_INT_CMD_ERR BIT(7) +#define CDNS_MCP_INT_RX_NE BIT(3) #define CDNS_MCP_INT_RX_WL BIT(2) #define CDNS_MCP_INT_TXE BIT(1) +#define CDNS_MCP_INT_TXF BIT(0)
#define CDNS_MCP_INTSET 0x4C
@@ -689,6 +692,11 @@ irqreturn_t sdw_cdns_irq(int irq, void *dev_id) } }
+ if (int_status & CDNS_MCP_INT_PARITY) { + /* Parity error detected by Master */ + dev_err_ratelimited(cdns->dev, "Parity error\n"); + } + if (int_status & CDNS_MCP_INT_CTRL_CLASH) { /* Slave is driving bit slot during control word */ dev_err_ratelimited(cdns->dev, "Bus clash for control word\n"); @@ -761,10 +769,21 @@ int sdw_cdns_enable_interrupt(struct sdw_cdns *cdns) cdns_writel(cdns, CDNS_MCP_SLAVE_INTMASK1, CDNS_MCP_SLAVE_INTMASK1_MASK);
+ /* enable detection of slave state changes */ mask = CDNS_MCP_INT_SLAVE_RSVD | CDNS_MCP_INT_SLAVE_ALERT | - CDNS_MCP_INT_SLAVE_ATTACH | CDNS_MCP_INT_SLAVE_NATTACH | - CDNS_MCP_INT_CTRL_CLASH | CDNS_MCP_INT_DATA_CLASH | - CDNS_MCP_INT_RX_WL | CDNS_MCP_INT_IRQ | CDNS_MCP_INT_DPINT; + CDNS_MCP_INT_SLAVE_ATTACH | CDNS_MCP_INT_SLAVE_NATTACH; + + /* enable detection of bus issues */ + mask |= CDNS_MCP_INT_CTRL_CLASH | CDNS_MCP_INT_DATA_CLASH | + CDNS_MCP_INT_PARITY; + + /* no detection of port interrupts for now */ + + /* enable detection of RX fifo level */ + mask |= CDNS_MCP_INT_RX_WL; + + /* now enable all of the above */ + mask |= CDNS_MCP_INT_IRQ;
cdns_writel(cdns, CDNS_MCP_INTMASK, mask);