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authorPhilipp Zabel <p.zabel@pengutronix.de>2020-12-10 16:38:29 +0100
committerPhilipp Zabel <p.zabel@pengutronix.de>2021-01-04 12:59:33 +0100
commit59abba48c4299481053411f6a4de5df67b2c998f (patch)
tree7c027233a646078e8dddd04983fc82a6cfc8f99c /include/drm
parentca5092d04d86986c03b6e0042e2f1cd119c50f5d (diff)
drm/simple_kms_helper: add drmm_simple_encoder_alloc()
Add an alternative to drm_simple_encoder_init() that allocates and initializes a simple encoder and registers drm_encoder_cleanup() with drmm_add_action_or_reset(). Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Diffstat (limited to 'include/drm')
-rw-r--r--include/drm/drm_simple_kms_helper.h24
1 files changed, 24 insertions, 0 deletions
diff --git a/include/drm/drm_simple_kms_helper.h b/include/drm/drm_simple_kms_helper.h
index a026375464ff..e6dbf3161c2f 100644
--- a/include/drm/drm_simple_kms_helper.h
+++ b/include/drm/drm_simple_kms_helper.h
@@ -185,4 +185,28 @@ int drm_simple_encoder_init(struct drm_device *dev,
struct drm_encoder *encoder,
int encoder_type);
+void *__drmm_simple_encoder_alloc(struct drm_device *dev, size_t size,
+ size_t offset, int encoder_type);
+
+/**
+ * drmm_simple_encoder_alloc - Allocate and initialize an encoder with basic
+ * functionality.
+ * @dev: drm device
+ * @type: the type of the struct which contains struct &drm_encoder
+ * @member: the name of the &drm_encoder within @type.
+ * @encoder_type: user visible type of the encoder
+ *
+ * Allocates and initializes an encoder that has no further functionality.
+ * Settings for possible CRTC and clones are left to their initial values.
+ * Cleanup is automatically handled through registering drm_encoder_cleanup()
+ * with drmm_add_action().
+ *
+ * Returns:
+ * Pointer to new encoder, or ERR_PTR on failure.
+ */
+#define drmm_simple_encoder_alloc(dev, type, member, encoder_type) \
+ ((type *)__drmm_simple_encoder_alloc(dev, sizeof(type), \
+ offsetof(type, member), \
+ encoder_type))
+
#endif /* __LINUX_DRM_SIMPLE_KMS_HELPER_H */