drm/msm: make fb debugfs file available only in KMS case

Don't register the 'fb' debugfs file, if there is no KMS (and so no
framebuffers).

Reviewed-by: Rob Clark <robdclark@gmail.com>
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Patchwork: https://patchwork.freedesktop.org/patch/561650/
Signed-off-by: Rob Clark <robdclark@chromium.org>

diff --git a/drivers/gpu/drm/msm/msm_debugfs.c b/drivers/gpu/drm/msm/msm_debugfs.c
index 06fc632fd6f9f5f894e8e5a853f6375c54a7f719..04d304eed22371be8686461d1a27a2bc7ccbc1f9 100644 (file)
--- a/drivers/gpu/drm/msm/msm_debugfs.c
+++ b/drivers/gpu/drm/msm/msm_debugfs.c
@@ -266,6 +266,9 @@ static int msm_fb_show(struct seq_file *m, void *arg)
 static struct drm_info_list msm_debugfs_list[] = {
                {"gem", msm_gem_show},
                { "mm", msm_mm_show },
+};
+
+static struct drm_info_list msm_kms_debugfs_list[] = {
                { "fb", msm_fb_show },
 };
 
@@ -314,9 +317,13 @@ void msm_debugfs_init(struct drm_minor *minor)
        debugfs_create_file("gpu", S_IRUSR, minor->debugfs_root,
                dev, &msm_gpu_fops);
 
-       if (priv->kms)
+       if (priv->kms) {
+               drm_debugfs_create_files(msm_kms_debugfs_list,
+                                        ARRAY_SIZE(msm_kms_debugfs_list),
+                                        minor->debugfs_root, minor);
                debugfs_create_file("kms", S_IRUSR, minor->debugfs_root,
                                    dev, &msm_kms_fops);
+       }
 
        debugfs_create_u32("hangcheck_period_ms", 0600, minor->debugfs_root,
                &priv->hangcheck_period);