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.st...@systec-electronic.com
Website: www.systec-electronic.com
Managing Director: Dipl.-Phys. Siegmar Schmidt
Commercial registry: Amtsgericht Chemnitz, HRB 28082
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