DSS2: allow to change venc.type through sysfs

diff --git a/drivers/video/omap2/dss/display.c b/drivers/video/omap2/dss/display.c
index 9aaf392..375977c 100644 (file)
--- a/drivers/video/omap2/dss/display.c
+++ b/drivers/video/omap2/dss/display.c
@@ -221,6 +221,38 @@ static ssize_t display_mirror_store(struct omap_display *display,
        return size;
 }
 
+static ssize_t display_venc_type_show(struct omap_display *display, char *buf)
+{
+       const char *ret;
+
+       switch (display->hw_config.u.venc.type) {
+       case OMAP_DSS_VENC_TYPE_COMPOSITE:
+               ret = "composite";
+               break;
+       case OMAP_DSS_VENC_TYPE_SVIDEO:
+               ret = "svideo";
+               break;
+       default:
+               ret = "unknown";
+               break;
+       }
+
+       return snprintf(buf, PAGE_SIZE, "%s\n", ret);
+}
+
+static ssize_t display_venc_type_store(struct omap_display *display,
+               const char *buf, size_t size)
+{
+       if (strncmp("composite", buf, 9) == 0)
+               display->hw_config.u.venc.type = OMAP_DSS_VENC_TYPE_COMPOSITE;
+       else if (strncmp("svideo", buf, 4) == 0)
+               display->hw_config.u.venc.type = OMAP_DSS_VENC_TYPE_SVIDEO;
+       else
+               return -EINVAL;
+
+       return size;
+}
+
 static ssize_t display_panel_name_show(struct omap_display *display, char *buf)
 {
        return snprintf(buf, PAGE_SIZE, "%s\n",
@@ -258,6 +290,8 @@ static DISPLAY_ATTR(mirror, S_IRUGO|S_IWUSR,
                display_mirror_show, display_mirror_store);
 static DISPLAY_ATTR(panel_name, S_IRUGO, display_panel_name_show, NULL);
 static DISPLAY_ATTR(ctrl_name, S_IRUGO, display_ctrl_name_show, NULL);
+static DISPLAY_ATTR(venc_type, S_IRUGO|S_IWUSR,
+               display_venc_type_show, display_venc_type_store);
 
 static struct attribute *display_sysfs_attrs[] = {
        &display_attr_name.attr,
@@ -458,6 +492,13 @@ void dss_init_displays(struct platform_device *pdev)
                        continue;
                }
 
+               if (display->type == OMAP_DISPLAY_TYPE_VENC) {
+                       r = sysfs_create_file(&display->kobj,
+                               &display_attr_venc_type.attr);
+                       if (r)
+                               DSSERR("failed to create sysfs file\n");
+               }
+
                num_displays++;
 
                list_add_tail(&display->list, &display_list);
@@ -472,6 +513,9 @@ void dss_uninit_displays(struct platform_device *pdev)
                display = list_first_entry(&display_list,
                                struct omap_display, list);
                list_del(&display->list);
+               if (display->type == OMAP_DISPLAY_TYPE_VENC)
+                       sysfs_remove_file(&display->kobj,
+                                         &display_attr_venc_type.attr);
                kobject_del(&display->kobj);
                kobject_put(&display->kobj);
                kfree(display);