From: Thierry Reding <treding@xxxxxxxxxx>
Add tracepoint events for DSI controller register accesses.
Signed-off-by: Thierry Reding <treding@xxxxxxxxxx>
---
drivers/gpu/drm/tegra/dsi.c | 8 +++++++-
drivers/gpu/drm/tegra/trace.h | 7 +++++++
2 files changed, 14 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/tegra/dsi.c b/drivers/gpu/drm/tegra/dsi.c
index 37a921cb676c..046649ec9441 100644
--- a/drivers/gpu/drm/tegra/dsi.c
+++ b/drivers/gpu/drm/tegra/dsi.c
@@ -28,6 +28,7 @@
#include "drm.h"
#include "dsi.h"
#include "mipi-phy.h"
+#include "trace.h"
struct tegra_dsi_state {
struct drm_connector_state base;
@@ -107,12 +108,17 @@ static struct tegra_dsi_state *tegra_dsi_get_state(struct tegra_dsi *dsi)
static inline u32 tegra_dsi_readl(struct tegra_dsi *dsi, unsigned int offset)
{
- return readl(dsi->regs + (offset << 2));
+ u32 value = readl(dsi->regs + (offset << 2));
+
+ trace_dsi_readl(dsi->dev, offset, value);
+
+ return value;
}
static inline void tegra_dsi_writel(struct tegra_dsi *dsi, u32 value,
unsigned int offset)
{
+ trace_dsi_writel(dsi->dev, offset, value);
writel(value, dsi->regs + (offset << 2));
}
diff --git a/drivers/gpu/drm/tegra/trace.h b/drivers/gpu/drm/tegra/trace.h
index e5c2e431c101..dd0176ff81eb 100644
--- a/drivers/gpu/drm/tegra/trace.h
+++ b/drivers/gpu/drm/tegra/trace.h
@@ -38,6 +38,13 @@ DEFINE_EVENT(register_access, hdmi_readl,
TP_PROTO(struct device *dev, unsigned int offset, u32 value),
TP_ARGS(dev, offset, value));
+DEFINE_EVENT(register_access, dsi_writel,
+ TP_PROTO(struct device *dev, unsigned int offset, u32 value),
+ TP_ARGS(dev, offset, value));
+DEFINE_EVENT(register_access, dsi_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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