Hi Maxime,
On 10/12/2018 10:28, Maxime Jourdan wrote:
> In case we are using simplefb or another conflicting framebuffer, make
> the call to drm_fb_helper_remove_conflicting_framebuffers()
>
> Signed-off-by: Maxime Jourdan <mjourdan@xxxxxxxxxxxx>
> ---
> drivers/gpu/drm/meson/meson_drv.c | 20 ++++++++++++++++++++
> 1 file changed, 20 insertions(+)
>
> diff --git a/drivers/gpu/drm/meson/meson_drv.c b/drivers/gpu/drm/meson/meson_drv.c
> index d3443125e661..afbb3d707d15 100644
> --- a/drivers/gpu/drm/meson/meson_drv.c
> +++ b/drivers/gpu/drm/meson/meson_drv.c
> @@ -159,6 +159,23 @@ static void meson_vpu_init(struct meson_drm *priv)
> writel_relaxed(0x20000, priv->io_base + _REG(VPU_WRARB_MODE_L2C1));
> }
>
> +static void meson_remove_framebuffers(void)
> +{
> + struct apertures_struct *ap;
> +
> + ap = alloc_apertures(1);
> + if (!ap)
> + return;
> +
> + /* The framebuffer can be located anywhere in RAM */
> + ap->ranges[0].base = 0;
> + ap->ranges[0].size = ~0;
> +
> + drm_fb_helper_remove_conflicting_framebuffers(ap, "meson-drm-fb",
> + false);
I always wondered, where does the "meson-drm-fb" comes from ???
Neil
> + kfree(ap);
> +}
> +
> static int meson_drv_bind_master(struct device *dev, bool has_components)
> {
> struct platform_device *pdev = to_platform_device(dev);
> @@ -242,6 +259,9 @@ static int meson_drv_bind_master(struct device *dev, bool has_components)
> if (ret)
> goto free_drm;
>
> + /* Remove early framebuffers (ie. simplefb) */
> + meson_remove_framebuffers();
> +
> drm_mode_config_init(drm);
> drm->mode_config.max_width = 3840;
> drm->mode_config.max_height = 2160;
>
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