From: Mythri P K mythr...@ti.com
Add support to dump the HDMI core, PLL and PHY registers through debugfs
Signed-off-by: Mythri P K mythr...@ti.com
---
drivers/video/omap2/dss/core.c|4 +
drivers/video/omap2/dss/dss.h |1 +
drivers/video/omap2/dss/dss_features.c|5 +
drivers/video/omap2/dss/hdmi.c| 16 +++
drivers/video/omap2/dss/ti_hdmi.h | 14 +++
drivers/video/omap2/dss/ti_hdmi_4xxx_ip.c | 168 +
6 files changed, 208 insertions(+), 0 deletions(-)
diff --git a/drivers/video/omap2/dss/core.c b/drivers/video/omap2/dss/core.c
index 76821fe..86ec12e 100644
--- a/drivers/video/omap2/dss/core.c
+++ b/drivers/video/omap2/dss/core.c
@@ -145,6 +145,10 @@ static int dss_initialize_debugfs(void)
debugfs_create_file(venc, S_IRUGO, dss_debugfs_dir,
venc_dump_regs, dss_debug_fops);
#endif
+#ifdef CONFIG_OMAP4_DSS_HDMI
+ debugfs_create_file(hdmi, S_IRUGO, dss_debugfs_dir,
+ hdmi_dump_regs, dss_debug_fops);
+#endif
return 0;
}
diff --git a/drivers/video/omap2/dss/dss.h b/drivers/video/omap2/dss/dss.h
index 47eebd8..8652007 100644
--- a/drivers/video/omap2/dss/dss.h
+++ b/drivers/video/omap2/dss/dss.h
@@ -472,6 +472,7 @@ int hdmi_init_platform_driver(void);
void hdmi_uninit_platform_driver(void);
int hdmi_init_display(struct omap_dss_device *dssdev);
unsigned long hdmi_get_pixel_clock(void);
+void hdmi_dump_regs(struct seq_file *s);
#else
static inline int hdmi_init_display(struct omap_dss_device *dssdev)
{
diff --git a/drivers/video/omap2/dss/dss_features.c
b/drivers/video/omap2/dss/dss_features.c
index 47e66d8..a2fc8e0 100644
--- a/drivers/video/omap2/dss/dss_features.c
+++ b/drivers/video/omap2/dss/dss_features.c
@@ -447,6 +447,11 @@ static const struct ti_hdmi_ip_ops omap4_hdmi_functions = {
.pll_enable = ti_hdmi_4xxx_pll_enable,
.pll_disable= ti_hdmi_4xxx_pll_disable,
.video_enable = ti_hdmi_4xxx_wp_video_start,
+ .dump_wrapper = ti_hdmi_4xxx_wp_dump,
+ .dump_core = ti_hdmi_4xxx_core_dump,
+ .dump_pll = ti_hdmi_4xxx_pll_dump,
+ .dump_phy = ti_hdmi_4xxx_phy_dump,
+
};
void dss_init_hdmi_ip_ops(struct hdmi_ip_data *ip_data)
diff --git a/drivers/video/omap2/dss/hdmi.c b/drivers/video/omap2/dss/hdmi.c
index 2f554ae..3262f0f 100644
--- a/drivers/video/omap2/dss/hdmi.c
+++ b/drivers/video/omap2/dss/hdmi.c
@@ -438,6 +438,22 @@ void omapdss_hdmi_display_set_timing(struct
omap_dss_device *dssdev)
}
}
+void hdmi_dump_regs(struct seq_file *s)
+{
+ mutex_lock(hdmi.lock);
+
+ if (hdmi_runtime_get())
+ return;
+
+ hdmi.ip_data.ops-dump_wrapper(hdmi.ip_data, s);
+ hdmi.ip_data.ops-dump_pll(hdmi.ip_data, s);
+ hdmi.ip_data.ops-dump_phy(hdmi.ip_data, s);
+ hdmi.ip_data.ops-dump_core(hdmi.ip_data, s);
+
+ hdmi_runtime_put();
+ mutex_unlock(hdmi.lock);
+}
+
int omapdss_hdmi_read_edid(u8 *buf, int len)
{
int r;
diff --git a/drivers/video/omap2/dss/ti_hdmi.h
b/drivers/video/omap2/dss/ti_hdmi.h
index d48603c..2c3443d 100644
--- a/drivers/video/omap2/dss/ti_hdmi.h
+++ b/drivers/video/omap2/dss/ti_hdmi.h
@@ -101,6 +101,15 @@ struct ti_hdmi_ip_ops {
void (*pll_disable)(struct hdmi_ip_data *ip_data);
void (*video_enable)(struct hdmi_ip_data *ip_data, bool start);
+
+ void (*dump_wrapper)(struct hdmi_ip_data *ip_data, struct seq_file *s);
+
+ void (*dump_core)(struct hdmi_ip_data *ip_data, struct seq_file *s);
+
+ void (*dump_pll)(struct hdmi_ip_data *ip_data, struct seq_file *s);
+
+ void (*dump_phy)(struct hdmi_ip_data *ip_data, struct seq_file *s);
+
};
struct hdmi_ip_data {
@@ -121,4 +130,9 @@ void ti_hdmi_4xxx_wp_video_start(struct hdmi_ip_data
*ip_data, bool start);
int ti_hdmi_4xxx_pll_enable(struct hdmi_ip_data *ip_data);
void ti_hdmi_4xxx_pll_disable(struct hdmi_ip_data *ip_data);
void ti_hdmi_4xxx_basic_configure(struct hdmi_ip_data *ip_data);
+void ti_hdmi_4xxx_wp_dump(struct hdmi_ip_data *ip_data, struct seq_file *s);
+void ti_hdmi_4xxx_pll_dump(struct hdmi_ip_data *ip_data, struct seq_file *s);
+void ti_hdmi_4xxx_core_dump(struct hdmi_ip_data *ip_data, struct seq_file *s);
+void ti_hdmi_4xxx_phy_dump(struct hdmi_ip_data *ip_data, struct seq_file *s);
+
#endif
diff --git a/drivers/video/omap2/dss/ti_hdmi_4xxx_ip.c
b/drivers/video/omap2/dss/ti_hdmi_4xxx_ip.c
index 5f22d2e..8355c4f 100644
--- a/drivers/video/omap2/dss/ti_hdmi_4xxx_ip.c
+++ b/drivers/video/omap2/dss/ti_hdmi_4xxx_ip.c
@@ -27,6 +27,7 @@
#include linux/mutex.h
#include linux/delay.h
#include linux/string.h
+#include linux/seq_file.h
#include ti_hdmi_4xxx_ip.h
#include dss.h
@@ -805,6 +806,173 @@ void ti_hdmi_4xxx_basic_configure(struct hdmi_ip_data
*ip_data)
