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soundwire: cadence_master: use rate_limited dynamic debug 

When commands start failing, e.g. due to a bad electrical connection
or bus conflicts, the dmesg log is flooded. This should not happen for
production devices but it's quite frequent when bringing-up a new
platform.

Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Signed-off-by: Vinod Koul <vkoul@kernel.org>
This commit is contained in:
Pierre-Louis Bossart 2019-05-22 14:47:26 -05:00 committed by Vinod Koul
parent 8acbbfec28
commit eb7df4c86e
1 changed files with 12 additions and 12 deletions
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24
drivers/soundwire/cadence_master.c
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@ -237,19 +237,19 @@ cdns_fill_msg_resp(struct sdw_cdns *cdns,
for (i = 0; i < count; i++) {
if (!(cdns->response_buf[i] & CDNS_MCP_RESP_ACK)) {
no_ack = 1;
dev_dbg(cdns->dev, "Msg Ack not received\n");
dev_dbg_ratelimited(cdns->dev, "Msg Ack not received\n");
if (cdns->response_buf[i] & CDNS_MCP_RESP_NACK) {
nack = 1;
dev_err(cdns->dev, "Msg NACK received\n");
dev_err_ratelimited(cdns->dev, "Msg NACK received\n");
}
}
}
if (nack) {
dev_err(cdns->dev, "Msg NACKed for Slave %d\n", msg->dev_num);
dev_err_ratelimited(cdns->dev, "Msg NACKed for Slave %d\n", msg->dev_num);
return SDW_CMD_FAIL;
} else if (no_ack) {
dev_dbg(cdns->dev, "Msg ignored for Slave %d\n", msg->dev_num);
dev_dbg_ratelimited(cdns->dev, "Msg ignored for Slave %d\n", msg->dev_num);
return SDW_CMD_IGNORED;
}
@ -357,12 +357,12 @@ cdns_program_scp_addr(struct sdw_cdns *cdns, struct sdw_msg *msg)
/* For NACK, NO ack, don't return err if we are in Broadcast mode */
if (nack) {
dev_err(cdns->dev,
"SCP_addrpage NACKed for Slave %d\n", msg->dev_num);
dev_err_ratelimited(cdns->dev,
"SCP_addrpage NACKed for Slave %d\n", msg->dev_num);
return SDW_CMD_FAIL;
} else if (no_ack) {
dev_dbg(cdns->dev,
"SCP_addrpage ignored for Slave %d\n", msg->dev_num);
dev_dbg_ratelimited(cdns->dev,
"SCP_addrpage ignored for Slave %d\n", msg->dev_num);
return SDW_CMD_IGNORED;
}
@ -525,9 +525,9 @@ static int cdns_update_slave_status(struct sdw_cdns *cdns,
/* first check if Slave reported multiple status */
if (set_status > 1) {
dev_warn(cdns->dev,
"Slave reported multiple Status: %d\n",
status[i]);
dev_warn_ratelimited(cdns->dev,
"Slave reported multiple Status: %d\n",
status[i]);
/*
* TODO: we need to reread the status here by
* issuing a PING cmd
@ -613,7 +613,7 @@ irqreturn_t sdw_cdns_thread(int irq, void *dev_id)
struct sdw_cdns *cdns = dev_id;
u32 slave0, slave1;
dev_dbg(cdns->dev, "Slave status change\n");
dev_dbg_ratelimited(cdns->dev, "Slave status change\n");
slave0 = cdns_readl(cdns, CDNS_MCP_SLAVE_INTSTAT0);
slave1 = cdns_readl(cdns, CDNS_MCP_SLAVE_INTSTAT1);