soundwire: bus: uniquify dev_err() for SCP_INT access

We have multiple cases where we read/write SCP_INT registers, but the
same error message in all cases. Add a distinct error message for each
case to help debug.

Reported-by: Guennadi Liakhovetski <guennadi.liakhovetski@linux.intel.com>
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Reviewed-by: Guennadi Liakhovetski <guennadi.liakhovetski@intel.com>
Reviewed-by: Kai Vehmanen <kai.vehmanen@linux.intel.com>
Reviewed-by: Guennadi Liakhovetski <guennadi.liakhovetski@linux.intel.com>
Signed-off-by: Bard Liao <yung-chuan.liao@linux.intel.com>
Link: https://lore.kernel.org/r/20210302091122.13952-6-yung-chuan.liao@linux.intel.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>

diff --git a/drivers/soundwire/bus.c b/drivers/soundwire/bus.c
index 8b6d8fe..a38b017 100644 (file)
--- a/drivers/soundwire/bus.c
+++ b/drivers/soundwire/bus.c
@@ -1636,7 +1636,7 @@ static int sdw_handle_slave_alerts(struct sdw_slave *slave)
                ret = sdw_read_no_pm(slave, SDW_SCP_INT1);
                if (ret < 0) {
                        dev_err(&slave->dev,
-                               "SDW_SCP_INT1 read failed:%d\n", ret);
+                               "SDW_SCP_INT1 recheck read failed:%d\n", ret);
                        goto io_err;
                }
                _buf = ret;
@@ -1644,7 +1644,7 @@ static int sdw_handle_slave_alerts(struct sdw_slave *slave)
                ret = sdw_nread_no_pm(slave, SDW_SCP_INTSTAT2, 2, _buf2);
                if (ret < 0) {
                        dev_err(&slave->dev,
-                               "SDW_SCP_INT2/3 read failed:%d\n", ret);
+                               "SDW_SCP_INT2/3 recheck read failed:%d\n", ret);
                        goto io_err;
                }
 
@@ -1652,7 +1652,7 @@ static int sdw_handle_slave_alerts(struct sdw_slave *slave)
                        ret = sdw_read_no_pm(slave, SDW_DP0_INT);
                        if (ret < 0) {
                                dev_err(&slave->dev,
-                                       "SDW_DP0_INT read failed:%d\n", ret);
+                                       "SDW_DP0_INT recheck read failed:%d\n", ret);
                                goto io_err;
                        }
                        sdca_cascade = ret & SDW_DP0_SDCA_CASCADE;