From 75af8fa7fd47e8f76198e13052b42e66d9e1f233 Mon Sep 17 00:00:00 2001 From: Thierry Reding Date: Tue, 15 Aug 2017 15:41:12 +0200 Subject: [PATCH] drm/tegra: dsi: Trace register accesses Add tracepoint events for DSI controller register accesses. Signed-off-by: Thierry Reding --- 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 444664b..6050cc4 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 e5c2e43..dd0176f 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 */ -- 2.7.4