Commit 07a8aab8 authored by Thierry Reding's avatar Thierry Reding
Browse files

drm/tegra: hdmi: Trace register accesses 



Add tracepoint events for HDMI controller register accesses.

Signed-off-by: default avatarThierry Reding <treding@nvidia.com>
parent 67e04d1a

drivers/gpu/drm/tegra/hdmi.c

+7 −1
Original line number Diff line number Diff line
@@ -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));

}

drivers/gpu/drm/tegra/trace.h

+7 −0
Original line number Diff line number Diff line
@@ -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 */