On 05/29/2017 04:15 PM, Neil Armstrong wrote:
> While introducing HDMI support, component matching on connectors node
> were bypassed since no driver would actually bind on the DT node.
> But when only a CVBS connector is present, only a single node is found
> in the graph, but ignored and a NULL match table is given to the
> component code.
>
> This code permits bypassing the components framework by binding directly
> the DRM driver when no components needs to be loaded.
>
> Fixes: a41e82e6c457 ("drm/meson: Add support for components")
> Signed-off-by: Neil Armstrong <narmstrong@xxxxxxxxxxxx>
> ---
> drivers/gpu/drm/meson/meson_drv.c | 20 +++++++++++++++-----
> 1 file changed, 15 insertions(+), 5 deletions(-)
>
> diff --git a/drivers/gpu/drm/meson/meson_drv.c b/drivers/gpu/drm/meson/meson_drv.c
> index 75382f5..10b227d 100644
> --- a/drivers/gpu/drm/meson/meson_drv.c
> +++ b/drivers/gpu/drm/meson/meson_drv.c
> @@ -152,7 +152,7 @@ static bool meson_vpu_has_available_connectors(struct device *dev)
> .max_register = 0x1000,
> };
>
> -static int meson_drv_bind(struct device *dev)
> +static int meson_drv_bind_master(struct device *dev, bool has_components)
> {
> struct platform_device *pdev = to_platform_device(dev);
> struct meson_drm *priv;
> @@ -233,10 +233,12 @@ static int meson_drv_bind(struct device *dev)
> if (ret)
> goto free_drm;
>
> - ret = component_bind_all(drm->dev, drm);
> - if (ret) {
> - dev_err(drm->dev, "Couldn't bind all components\n");
> - goto free_drm;
> + if (has_components) {
> + ret = component_bind_all(drm->dev, drm);
> + if (ret) {
> + dev_err(drm->dev, "Couldn't bind all components\n");
> + goto free_drm;
> + }
> }
>
> ret = meson_plane_create(priv);
> @@ -276,6 +278,11 @@ static int meson_drv_bind(struct device *dev)
> return ret;
> }
>
> +static int meson_drv_bind(struct device *dev)
> +{
> + return meson_drv_bind_master(dev, true);
> +}
> +
> static void meson_drv_unbind(struct device *dev)
> {
> struct drm_device *drm = dev_get_drvdata(dev);
> @@ -357,6 +364,9 @@ static int meson_drv_probe(struct platform_device *pdev)
> count += meson_probe_remote(pdev, &match, np, remote);
> }
>
> + if (count && !match)
> + return meson_drv_bind_master(&pdev->dev, false);
> +
> /* If some endpoints were found, initialize the nodes */
> if (count) {
> dev_info(&pdev->dev, "Queued %d outputs on vpu\n", count);
>
Hi,
Could this patch go through the next drm-misc-fixes PR ?
Thanks,
Neil
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