[PATCH v2 11/13] hw/i2c/imx_i2c: Convert DPRINTF() to trace events

[Bernhard Beschow]

Also print the QOM canonical path when tracing which allows for distinguishing
the many instances a typical i.MX SoC has.

Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Tested-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Bernhard Beschow <shentey@gmail.com>
---
 hw/i2c/imx_i2c.c    | 21 +++++----------------
 hw/i2c/trace-events |  5 +++++
 2 files changed, 10 insertions(+), 16 deletions(-)

diff --git a/hw/i2c/imx_i2c.c b/hw/i2c/imx_i2c.c
index c565fd5b8a..d62213b9e0 100644
--- a/hw/i2c/imx_i2c.c
+++ b/hw/i2c/imx_i2c.c
@@ -25,18 +25,7 @@
 #include "hw/i2c/i2c.h"
 #include "qemu/log.h"
 #include "qemu/module.h"
-
-#ifndef DEBUG_IMX_I2C
-#define DEBUG_IMX_I2C 0
-#endif
-
-#define DPRINTF(fmt, args...) \
-    do { \
-        if (DEBUG_IMX_I2C) { \
-            fprintf(stderr, "[%s]%s: " fmt , TYPE_IMX_I2C, \
-                                             __func__, ##args); \
-        } \
-    } while (0)
+#include "trace.h"
 
 static const char *imx_i2c_get_regname(unsigned offset)
 {
@@ -152,8 +141,8 @@ static uint64_t imx_i2c_read(void *opaque, hwaddr offset,
         break;
     }
 
-    DPRINTF("read %s [0x%" HWADDR_PRIx "] -> 0x%02x\n",
-            imx_i2c_get_regname(offset), offset, value);
+    trace_imx_i2c_read(DEVICE(s)->canonical_path, imx_i2c_get_regname(offset),
+                       offset, value);
 
     return (uint64_t)value;
 }
@@ -163,8 +152,8 @@ static void imx_i2c_write(void *opaque, hwaddr offset,
 {
     IMXI2CState *s = IMX_I2C(opaque);
 
-    DPRINTF("write %s [0x%" HWADDR_PRIx "] <- 0x%02x\n",
-            imx_i2c_get_regname(offset), offset, (int)value);
+    trace_imx_i2c_read(DEVICE(s)->canonical_path, imx_i2c_get_regname(offset),
+                       offset, value);
 
     value &= 0xff;
 
diff --git a/hw/i2c/trace-events b/hw/i2c/trace-events
index f708a7ace1..1ad0e95c0e 100644
--- a/hw/i2c/trace-events
+++ b/hw/i2c/trace-events
@@ -56,3 +56,8 @@ npcm7xx_smbus_recv_fifo(const char *id, uint8_t received, 
uint8_t expected) "%s
 
 pca954x_write_bytes(uint8_t value) "PCA954X write data: 0x%02x"
 pca954x_read_data(uint8_t value) "PCA954X read data: 0x%02x"
+
+# imx_i2c.c
+
+imx_i2c_read(const char *id, const char *reg, uint64_t ofs, uint64_t value) 
"%s:[%s (0x%" PRIx64 ")] -> 0x%02" PRIx64
+imx_i2c_write(const char *id, const char *reg, uint64_t ofs, uint64_t value) 
"%s:[%s (0x%" PRIx64 ")] <- 0x%02" PRIx64
-- 
2.48.0