linux-kernel - [PATCH v3 2/4] drm/simple_kms_helper: Add macro drmm_plain_simple_encoder

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Date:   Sun, 24 Jan 2021 08:55:50 +0000
From:   Paul Cercueil <paul@...pouillou.net>
To:     David Airlie <airlied@...ux.ie>, Daniel Vetter <daniel@...ll.ch>
Cc:     Sam Ravnborg <sam@...nborg.org>,
        Laurent Pinchart <Laurent.pinchart@...asonboard.com>,
        od@...c.me, dri-devel@...ts.freedesktop.org,
        linux-kernel@...r.kernel.org, linux-mips@...r.kernel.org,
        Paul Cercueil <paul@...pouillou.net>
Subject: [PATCH v3 2/4] drm/simple_kms_helper: Add macro drmm_plain_simple_encoder_alloc()

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 <paul@...pouillou.net>
---
 include/drm/drm_simple_kms_helper.h | 17 +++++++++++++++++
 1 file changed, 17 insertions(+)

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 */
-- 
2.29.2