From: Thierry Reding <treding@xxxxxxxxxx>
Add tracepoint events for HDMI controller register accesses.
Signed-off-by: Thierry Reding <treding@xxxxxxxxxx>
---
drivers/gpu/drm/tegra/hdmi.c | 8 +++++++-
drivers/gpu/drm/tegra/trace.h | 7 +++++++
2 files changed, 14 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/tegra/hdmi.c b/drivers/gpu/drm/tegra/hdmi.c
index aa7525619f3e..5b9d83b71943 100644
--- a/drivers/gpu/drm/tegra/hdmi.c
+++ b/drivers/gpu/drm/tegra/hdmi.c
@@ -24,6 +24,7 @@
#include "hdmi.h"
#include "drm.h"
#include "dc.h"
+#include "trace.h"
#define HDMI_ELD_BUFFER_SIZE 96
@@ -102,12 +103,17 @@ enum {
static inline u32 tegra_hdmi_readl(struct tegra_hdmi *hdmi,
unsigned int offset)
{
- return readl(hdmi->regs + (offset << 2));
+ u32 value = readl(hdmi->regs + (offset << 2));
+
+ trace_hdmi_readl(hdmi->dev, offset, value);
+
+ return value;
}
static inline void tegra_hdmi_writel(struct tegra_hdmi *hdmi, u32 value,
unsigned int offset)
{
+ trace_hdmi_writel(hdmi->dev, offset, value);
writel(value, hdmi->regs + (offset << 2));
}
diff --git a/drivers/gpu/drm/tegra/trace.h b/drivers/gpu/drm/tegra/trace.h
index b32d90c967e8..e5c2e431c101 100644
--- a/drivers/gpu/drm/tegra/trace.h
+++ b/drivers/gpu/drm/tegra/trace.h
@@ -31,6 +31,13 @@ DEFINE_EVENT(register_access, dc_readl,
TP_PROTO(struct device *dev, unsigned int offset, u32 value),
TP_ARGS(dev, offset, value));
+DEFINE_EVENT(register_access, hdmi_writel,
+ TP_PROTO(struct device *dev, unsigned int offset, u32 value),
+ TP_ARGS(dev, offset, value));
+DEFINE_EVENT(register_access, hdmi_readl,
+ TP_PROTO(struct device *dev, unsigned int offset, u32 value),
+ TP_ARGS(dev, offset, value));
+
#endif /* DRM_TEGRA_TRACE_H */
/* This part must be outside protection */
--
2.13.3
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