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Commit eba7c455 authored by Thierry Reding's avatar Thierry Reding
Browse files

drm/tegra: dpaux: Trace register accesses 



Add tracepoint events for DPAUX controller register accesses.

Signed-off-by: default avatarThierry Reding <treding@nvidia.com>
parent 75af8fa7

drivers/gpu/drm/tegra/dpaux.c

+7 −1
Original line number Diff line number Diff line
@@ -25,6 +25,7 @@ 


#include "dpaux.h"

#include "drm.h"

#include "trace.h"



static DEFINE_MUTEX(dpaux_lock);

static LIST_HEAD(dpaux_list);
@@ -67,12 +68,17 @@ static inline struct tegra_dpaux *work_to_dpaux(struct work_struct *work) 
static inline u32 tegra_dpaux_readl(struct tegra_dpaux *dpaux,

				    unsigned int offset)

{

	return readl(dpaux->regs + (offset << 2));

	u32 value = readl(dpaux->regs + (offset << 2));



	trace_dpaux_readl(dpaux->dev, offset, value);



	return value;

}



static inline void tegra_dpaux_writel(struct tegra_dpaux *dpaux,

				      u32 value, unsigned int offset)

{

	trace_dpaux_writel(dpaux->dev, offset, value);

	writel(value, dpaux->regs + (offset << 2));

}

drivers/gpu/drm/tegra/trace.h

+7 −0
Original line number Diff line number Diff line
@@ -45,6 +45,13 @@ DEFINE_EVENT(register_access, dsi_readl, 
	TP_PROTO(struct device *dev, unsigned int offset, u32 value),

	TP_ARGS(dev, offset, value));



DEFINE_EVENT(register_access, dpaux_writel,

	TP_PROTO(struct device *dev, unsigned int offset, u32 value),

	TP_ARGS(dev, offset, value));

DEFINE_EVENT(register_access, dpaux_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 */