drm: Use driver specified encoder name

Use the encoder name passed by the driver if non-NULL, otherwise fall
back to the old style name.

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/1449592922-5545-5-git-send-email-ville.syrjala@linux.intel.com

1 files changed, 11 insertions, 3 deletions

diff --git a/drivers/gpu/drm/drm_crtc.c b/drivers/gpu/drm/drm_crtc.c
index b1111ea2b29d..aade4640fa6d 100644
--- a/drivers/gpu/drm/drm_crtc.c
+++ b/drivers/gpu/drm/drm_crtc.c
@@ -1101,9 +1101,17 @@ int drm_encoder_init(struct drm_device *dev,
         encoder->dev = dev;
         encoder->encoder_type = encoder_type;
         encoder->funcs = funcs;
-        encoder->name = kasprintf(GFP_KERNEL, "%s-%d",
-                                  drm_encoder_enum_list[encoder_type].name,
-                                  encoder->base.id);
+        if (name) {
+                va_list ap;
+
+                va_start(ap, name);
+                encoder->name = kvasprintf(GFP_KERNEL, name, ap);
+                va_end(ap);
+        } else {
+                encoder->name = kasprintf(GFP_KERNEL, "%s-%d",
+                                          drm_encoder_enum_list[encoder_type].name,
+                                          encoder->base.id);
+        }
         if (!encoder->name) {
                 ret = -ENOMEM;
                 goto out_put;