rk3036 hdmi: add debug interface

drivers/video/rockchip/display-sys.c

@@ -189,6 +189,21 @@ static ssize_t display_store_scale(struct device *dev,
 	return -EINVAL;
 }
 
+static ssize_t display_store_debug(struct device *dev,
+					struct device_attribute *attr,
+					const char *buf, size_t count)
+{
+	int cmd;
+	struct rk_display_device *dsp = dev_get_drvdata(dev);
+
+	if(dsp->ops && dsp->ops->setdebug) {
+		sscanf(buf, "%d", &cmd);
+		dsp->ops->setdebug(dsp, cmd);
+		return count;
+	}
+	return -EINVAL;
+}
+
 static struct device_attribute display_attrs[] = {
 	__ATTR(name, S_IRUGO, display_show_name, NULL),
 	__ATTR(type, S_IRUGO, display_show_type, NULL),
@@ -197,6 +212,7 @@ static struct device_attribute display_attrs[] = {
 	__ATTR(modes, S_IRUGO, display_show_modes, NULL),
 	__ATTR(mode, 0664, display_show_mode, display_store_mode),
 	__ATTR(scale, 0664, display_show_scale, display_store_scale),
+	__ATTR(debug, 0664, NULL, display_store_debug),
 	__ATTR_NULL
 };
 

drivers/video/rockchip/hdmi/chips/rk3036/rk3036_hdmi_hw.c

@@ -579,6 +579,25 @@ static void rk3036_hdmi_reset(struct hdmi *hdmi_drv)
 
 	rk3036_hdmi_set_pwr_mode(hdmi_drv, LOWER_PWR);
 }
+static int rk3036_hdmi_debug(struct hdmi *hdmi_drv,int cmd)
+{
+	switch(cmd) {
+	case 0:
+		printk("%s[%d]:cmd=%d\n",__func__,__LINE__,cmd);
+		break;
+	case 1:
+		printk("%s[%d]:cmd=%d\n",__func__,__LINE__,cmd);
+		break;
+	default:
+		printk("%s[%d]:cmd=%d\n",__func__,__LINE__,cmd);
+		break;
+	}
+	return 0;
+}
+
+static struct rk_hdmi_drv_ops hdmi_drv_ops = {
+	.hdmi_debug = rk3036_hdmi_debug,
+};
 
 int rk3036_hdmi_initial(struct hdmi *hdmi_drv)
 {
@@ -592,6 +611,7 @@ int rk3036_hdmi_initial(struct hdmi *hdmi_drv)
 	hdmi_drv->detect_hotplug = rk3036_hdmi_detect_hotplug;
 	hdmi_drv->read_edid = rk3036_hdmi_read_edid;
 	hdmi_drv->insert    = rk3036_hdmi_insert;
+	hdmi_drv->ops = &hdmi_drv_ops;
 
 	rk3036_hdmi_reset_pclk();
 	rk3036_hdmi_reset(hdmi_drv);

drivers/video/rockchip/hdmi/rk_hdmi.h

@@ -313,6 +313,12 @@ struct rk_hdmi_drvdata  {
 	u8 soc_type;
 	u32 reversed;
 };
+struct hdmi;
+
+struct rk_hdmi_drv_ops {
+	int (*hdmi_debug) (struct hdmi *hdmi, int cmd);
+};
+
 
 struct hdmi {
 	struct device *dev;
@@ -381,6 +387,7 @@ struct hdmi {
 	void (*cec_irq)(void);
 	void (*cec_set_device_pa)(int);
 	int (*cec_enumerate)(void);
+	struct rk_hdmi_drv_ops *ops;
 };
 
 #define hdmi_err(dev, format, arg...)		\

drivers/video/rockchip/hdmi/rk_hdmi_sysfs.c

@@ -141,6 +141,18 @@ static int hdmi_get_scale(struct rk_display_device *device, int direction)
 	else
 		return -1;
 }
+static int hdmi_set_debug(struct rk_display_device *device, int cmd)
+{
+	struct hdmi *hdmi = device->priv_data;
+
+	if (!hdmi)
+		return -1;
+	if (hdmi->ops && hdmi->ops->hdmi_debug)
+		hdmi->ops->hdmi_debug(hdmi,cmd);
+
+	return 0;
+}
+
 
 struct rk_display_ops hdmi_display_ops = {
 	.setenable = hdmi_set_enable,
@@ -151,6 +163,7 @@ struct rk_display_ops hdmi_display_ops = {
 	.getmode = hdmi_get_mode,
 	.setscale = hdmi_set_scale,
 	.getscale = hdmi_get_scale,
+	.setdebug = hdmi_set_debug,
 };
 
 #if 1

include/linux/display-sys.h

@@ -37,6 +37,7 @@ struct rk_display_ops {
 	int (*getmode)(struct rk_display_device *, struct fb_videomode *mode);
 	int (*setscale)(struct rk_display_device *, int, int);
 	int (*getscale)(struct rk_display_device *, int);
+	int (*setdebug)(struct rk_display_device *, int);
 };
 
 struct rk_display_device {