Hi,
On drivers using drm_fb_helper's in fb_ops it is not possible to change
video mode, because of different var->pixclock evaluation:
int drm_fb_helper_check_var(struct fb_var_screeninfo *var,
struct fb_info *info)
{
[...]
if (var->pixclock == -1 || !var->pixclock)
return -EINVAL;
[...]
int drm_fb_helper_set_par(struct fb_info *info)
{
[...]
if (var->pixclock != -1) {
DRM_ERROR("PIXEL CLCOK SET\n");
return -EINVAL;
}
[...]
One of these evaluations will fail regardless of pixclock value.
P.S. check CLCOK spelling :)
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