[linux-sunxi] [PATCH v2 16/26] drm: Add Allwinner A10 Display Engine support

Priit Laes
2016-01-17T12:58:39Z

On Sat, 2016-01-16 at 17:11 +0200, Priit Laes wrote:
> On Thu, 2016-01-14 at 16:24 +0100, Maxime Ripard wrote:
> > The Allwinner A10 and subsequent SoCs share the same display
> > pipeline, with
> > variations in the number of controllers (1 or 2), or the presence
> > or not of
> > some output (HDMI, TV, VGA) or not.
[...]
> > diff --git a/drivers/gpu/drm/sun4i/sun4i_framebuffer.c
> > b/drivers/gpu/drm/sun4i/sun4i_framebuffer.c
> > new file mode 100644
> > index 000000000000..68072b8cddab
> > --- /dev/null
> > +++ b/drivers/gpu/drm/sun4i/sun4i_framebuffer.c
> > @@ -0,0 +1,54 @@
> > +/*
> > + * Copyright (C) 2015 Free Electrons
> > + * Copyright (C) 2015 NextThing Co
> > + *
> > + * Maxime Ripard <maxime.ripard@free-electrons.com>
> > + *
> > + * This program is free software; you can redistribute it and/or
> > + * modify it under the terms of the GNU General Public License as
> > + * published by the Free Software Foundation; either version 2 of
> > + * the License, or (at your option) any later version.
> > + */
> > +
> > +#include <drm/drm_fb_cma_helper.h>
> > +#include <drm/drm_atomic_helper.h>
> > +#include <drm/drmP.h>
> > +
> > +#include "sun4i_drv.h"
> > +
> > +static void sun4i_de_output_poll_changed(struct drm_device *drm)
> > +{
> > + struct sun4i_drv *drv = drm->dev_private;
> > +
> > + if (drv->fbdev)
> > + drm_fbdev_cma_hotplug_event(drv->fbdev);
> > +}
> > +
> > +static const struct drm_mode_config_funcs
> > sun4i_de_mode_config_funcs
> > = {
> > + .output_poll_changed =
> > sun4i_de_output_poll_changed,
> > + .atomic_check = drm_atomic_helper_check,
> > + .atomic_commit = drm_atomic_helper_commit,
> > + .fb_create = drm_fb_cma_create,
> > +};
> > +
> > +struct drm_fbdev_cma *sun4i_framebuffer_init(struct drm_device
> > *drm)
> > +{
> > + drm_mode_config_reset(drm);
> > +
> > + drm->mode_config.max_width = 8192;
> > + drm->mode_config.max_height = 8192;
>?
> Shouldn't these be 1920 x 1080 as per A10 User manual?

I was wrong here. 8192x8192 it is.

>

P?ikest,
Priit Laes :)