Repository pattern with Eloquent

EloquentPostRepository.php

<?php

namespace App\Repositories\Post;

use App\Post;

class EloquentPostRepository implements PostRepositoryInterface
{
    protected $model;

    public function __construct(Post $post)
    {
        $this->model = $post;
    }

    public function getPaginatedIndex()
    {
        return $this->model->orderBy('updated_at', 'desc')->paginate(20);
    }
}

PostController.php

<?php

namespace App\Http\Controllers\Blog;

use App\Repositories\Post\PostRepositoryInterface;
use Illuminate\Http\Request;

use App\Http\Controllers\Controller;

class PostController extends Controller
{
    private $postRepository;

    public function __construct(PostRepositoryInterface $postRepository)
    {
        $this->postRepository = $postRepository;       
    }

    /**
     * Display a listing of the resource.
     *
     * @return \Illuminate\Http\Response
     */
    public function index()
    {
        $posts = $this->postRepository->getPaginatedIndex();

        return view('blog.index', ['posts' => $posts]);
    }
}

PostRepositoryInterface.php

<?php

namespace App\Repositories\Post;

interface PostRepositoryInterface
{
    /**
     * Get a sorted, paginated list of
     * blog posts to use on the blog index
     *
     * @return \Illuminate\Support\Collection
     */
    public function getPaginatedIndex();
}

PostServiceProvider.php

<?php

namespace App\Providers;

use App\Repositories\Post\EloquentPostRepository;
use App\Repositories\Post\PostRepositoryInterface;
use Illuminate\Support\ServiceProvider;

class PostServiceProvider extends ServiceProvider
{
    /**
     * Indicates if loading of the provider is deferred.
     *
     * @var bool
     */
    protected $defer = true;

    /**
     * Bootstrap the application services.
     *
     * @return void
     */
    public function boot()
    {
        //
    }

    /**
     * Register the application services.
     *
     * @return void
     */
    public function register()
    {
        $this->app->bind(PostRepositoryInterface::class, EloquentPostRepository::class);
    }

    /**
     * Get the services provided by the provider.
     *
     * @return array
     */
    public function provides()
    {
        return [PostRepositoryInterface::class];
    }
}