[v3,2/4] drm/simple_kms_helper: Add macro drmm_plain_simple_encoder_alloc()

Commit Message

Paul Cercueil Jan. 24, 2021, 8:55 a.m. UTC

This performs the same operation as drmm_simple_encoder_alloc(), but
only allocates and returns a struct drm_encoder instance.

Signed-off-by: Paul Cercueil <[e-mail]>
---
 include/drm/drm_simple_kms_helper.h | 17 +++++++++++++++++
 1 file changed, 17 insertions(+)

Patch

diff --git a/include/drm/drm_simple_kms_helper.h b/include/drm/drm_simple_kms_helper.h
index e6dbf3161c2f..f07e70303cfb 100644
--- a/include/drm/drm_simple_kms_helper.h
+++ b/include/drm/drm_simple_kms_helper.h
@@ -209,4 +209,21 @@  void *__drmm_simple_encoder_alloc(struct drm_device *dev, size_t size,
 					     offsetof(type, member), \
 					     encoder_type))
 
+/**
+ * drmm_plain_simple_encoder_alloc - Allocate and initialize a drm_encoder
+ *                                   struct with basic functionality.
+ * @dev: drm device
+ * @encoder_type: user visible type of the encoder
+ *
+ * This performs the same operation as drmm_simple_encoder_alloc(), but
+ * only allocates and returns a struct drm_encoder instance.
+ *
+ * Returns:
+ * Pointer to the new drm_encoder struct, or ERR_PTR on failure.
+ */
+#define drmm_plain_simple_encoder_alloc(dev, encoder_type) \
+	((struct drm_encoder *) \
+	 __drmm_simple_encoder_alloc(dev, sizeof(struct drm_encoder), \
+				     0, encoder_type))
+
 #endif /* __LINUX_DRM_SIMPLE_KMS_HELPER_H */