[PATCH v4 1/1] drm/fb-helper: implement ioctl FBIO_WAITFORVSYNC

[Stefan Lengfeld]

Hi Maxime,

On Tue, Feb 28, 2017 at 04:36:51PM +0100, Maxime Ripard wrote:
> Implement legacy framebuffer ioctl FBIO_WAITFORVSYNC in the generic
> framebuffer emulation driver. Legacy framebuffer users like non kms/drm
> based OpenGL(ES)/EGL implementations may require the ioctl to                  
> synchronize drawing or buffer flip for double buffering. It is tested on
> the i.MX6.
>
> Signed-off-by: Maxime Ripard <maxime.ripard at free-electrons.com>
> Tested-by: Neil Armstrong <narmstrong at baylibre.com>

I will test this patch and the already applied patch to drm-next on the
i.MX6 platform in the next days.

Kind regards,
    Stefan