drm/rockchip: Embed drm_encoder into rockchip_decoder

The VOP2 driver needs rockchip specific information for a drm_encoder.

This patch creates a struct rockchip_encoder with a struct drm_encoder
embedded in it. This is used throughout the rockchip driver instead of
struct drm_encoder directly.

The information the VOP2 drivers needs is the of_graph endpoint node
of the encoder. To ease bisectability this is added here.

While at it convert the different encoder-to-driverdata macros to
static inline functions in order to gain type safety and readability.

Signed-off-by: Sascha Hauer <[email protected]>
Tested-by: Michael Riesch <[email protected]>
Signed-off-by: Heiko Stuebner <[email protected]>
Link: https://patchwork.freedesktop.org/patch/msgid/[email protected]

1 files changed, 12 insertions, 6 deletions

diff --git a/drivers/gpu/drm/rockchip/cdn-dp-core.c b/drivers/gpu/drm/rockchip/cdn-dp-core.c
index 0d027b10fbb3..c204e9b95c1f 100644
--- a/drivers/gpu/drm/rockchip/cdn-dp-core.c
+++ b/drivers/gpu/drm/rockchip/cdn-dp-core.c
@@ -26,11 +26,17 @@
 #include "cdn-dp-reg.h"
 #include "rockchip_drm_vop.h"
 
-#define connector_to_dp(c) \
-		container_of(c, struct cdn_dp_device, connector)
+static inline struct cdn_dp_device *connector_to_dp(struct drm_connector *connector)
+{
+	return container_of(connector, struct cdn_dp_device, connector);
+}
 
-#define encoder_to_dp(c) \
-		container_of(c, struct cdn_dp_device, encoder)
+static inline struct cdn_dp_device *encoder_to_dp(struct drm_encoder *encoder)
+{
+	struct rockchip_encoder *rkencoder = to_rockchip_encoder(encoder);
+
+	return container_of(rkencoder, struct cdn_dp_device, encoder);
+}
 
 #define GRF_SOC_CON9		0x6224
 #define DP_SEL_VOP_LIT		BIT(12)
@@ -1050,7 +1056,7 @@ static int cdn_dp_bind(struct device *dev, struct device *master, void *data)
 
 	INIT_WORK(&dp->event_work, cdn_dp_pd_event_work);
 
-	encoder = &dp->encoder;
+	encoder = &dp->encoder.encoder;
 
 	encoder->possible_crtcs = drm_of_find_possible_crtcs(drm_dev,
 							     dev->of_node);
@@ -1115,7 +1121,7 @@ err_free_encoder:
 static void cdn_dp_unbind(struct device *dev, struct device *master, void *data)
 {
 	struct cdn_dp_device *dp = dev_get_drvdata(dev);
-	struct drm_encoder *encoder = &dp->encoder;
+	struct drm_encoder *encoder = &dp->encoder.encoder;
 	struct drm_connector *connector = &dp->connector;
 
 	cancel_work_sync(&dp->event_work);