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Commit 162874d5 authored by Mythri P K's avatar Mythri P K Committed by Tomi Valkeinen
Browse files

OMAPDSS: HDMI: Add support to dump registers through debugfs 



Add support to dump the HDMI wrapper, core, PLL and PHY registers
through debugfs.

Signed-off-by: default avatarMythri P K <mythripk@ti.com>
[tomi.valkeinen@ti.com: updated the description]
Signed-off-by: default avatarTomi Valkeinen <tomi.valkeinen@ti.com>
parent 81302a75

drivers/video/omap2/dss/core.c

+4 −0
Original line number Diff line number Diff line
@@ -144,6 +144,10 @@ static int dss_initialize_debugfs(void) 
#ifdef CONFIG_OMAP2_DSS_VENC

	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;

}

drivers/video/omap2/dss/dss.h

+1 −0
Original line number Diff line number Diff line
@@ -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)

{

drivers/video/omap2/dss/dss_features.c

+5 −0
Original line number Diff line number Diff line
@@ -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)

drivers/video/omap2/dss/hdmi.c

+16 −0
Original line number Diff line number Diff line
@@ -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;

drivers/video/omap2/dss/ti_hdmi.h

+14 −0
Original line number Diff line number Diff line
@@ -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