spi/trace: Trace length of SPI messages on completion

Signed-off-by: Mark Brown <broonie@linaro.org>

1 files changed, 22 insertions, 2 deletions

diff --git a/include/trace/events/spi.h b/include/trace/events/spi.h
index a7b09072ce56..5e77e21f885a 100644
--- a/include/trace/events/spi.h
+++ b/include/trace/events/spi.h
@@ -80,12 +80,32 @@ DEFINE_EVENT(spi_message, spi_message_start,
 
 );
 
-DEFINE_EVENT(spi_message, spi_message_done,
+TRACE_EVENT(spi_message_done,
 
         TP_PROTO(struct spi_message *msg),
 
-        TP_ARGS(msg)
+        TP_ARGS(msg),
+
+        TP_STRUCT__entry(
+                __field(        int,            bus_num         )
+                __field(        int,            chip_select     )
+                __field(        struct spi_message *,   msg     )
+                __field(        unsigned,       frame           )
+                __field(        unsigned,       actual          )
+        ),
 
+        TP_fast_assign(
+                __entry->bus_num = msg->spi->master->bus_num;
+                __entry->chip_select = msg->spi->chip_select;
+                __entry->msg = msg;
+                __entry->frame = msg->frame_length;
+                __entry->actual = msg->actual_length;
+        ),
+
+        TP_printk("spi%d.%d %p len=%u/%u", (int)__entry->bus_num,
+                  (int)__entry->chip_select,
+                  (struct spi_message *)__entry->msg,
+                  (unsigned)__entry->actual, (unsigned)__entry->frame)
 );
 
 #endif /* _TRACE_POWER_H */