On Monday 24 November 2014 18:20:51, Xiubo Li wrote:

[...]
+static int fsl_dcfb_init_fbinfo(struct fb_info *info)
+{
+	struct fsl_dcfb_mfb_info *mfbi = info->par;
+	struct fb_var_screeninfo *var = &info->var;
+	struct fsl_dcfb_fb_private *dcfb = mfbi->parent;
+	struct device_node *np = dcfb->dev->of_node;
+	struct device_node *dnp, *tnp;
+	struct display_timings *timings;
+	int i, ret;
+
+	dnp = of_parse_phandle(np, "display", 0);
+	if (!dnp) {
+		dev_err(dcfb->dev, "failed to find \"display\" phandle.\n");
+		return -ENODEV;
+	}
+
+	ret = of_property_read_u32(dnp, "bits-per-pixel",
+				   &var->bits_per_pixel);
+	if (ret < 0) {
+		dev_err(dcfb->dev, "failed to get \"bits-per-pixel\" property.\n");
+		goto put_dnp;
+	}
+
+	timings = of_get_display_timings(dnp);
+	if (!timings) {
+		dev_err(dcfb->dev, "failed to get display timings\n");
+		return -ENODEV;
+		goto put_dnp;
+	}
+
+	tnp = of_find_node_by_name(dnp, "display-timings");
+	if (!tnp) {
+		dev_err(dcfb->dev, "failed to find \"display-timings\" node\n");
+		return -ENODEV;
+		goto put_dnp;
+	}
+
+	for (i = 0; i < of_get_child_count(tnp); i++) {
+		struct videomode vm;
+		struct fb_videomode fb_vm;
+
+		ret = videomode_from_timings(timings, &vm, i);
+		if (ret < 0)
+			goto put_tnp;
+
+		ret = fb_videomode_from_videomode(&vm, &fb_vm);
+		if (ret < 0)
+			goto put_tnp;
+
+		fb_add_videomode(&fb_vm, &info->modelist);
+	}

Adding each display timing to the modelist here...

[...]
+	ret = fsl_dcfb_init_fbinfo(info);
+	if (ret)
+		goto err_cmap;
+
+	modelist = list_first_entry(&info->modelist,
+			struct fb_modelist, list);
+	fb_videomode_to_var(&info->var, &modelist->mode);

... and just picking the first here, essentially renders the "native-mode" property in device tree as useless, since only the first in that list is picked (which seems to be the last one inserted).

Best regards,
Alexander
-- 
Dipl.-Inf. Alexander Stein

SYS TEC electronic GmbH
Am Windrad 2
08468 Heinsdorfergrund
Tel.: 03765 38600-1156
Fax: 03765 38600-4100
Email: alexander.stein@systec-electronic.com
Website: www.systec-electronic.com
 
Managing Director: Dipl.-Phys. Siegmar Schmidt
Commercial registry: Amtsgericht Chemnitz, HRB 28082