[PATCH 03/10] drm/rockchip: dw_hdmi: Use drmres helpers for encoder resources

[Jonas Karlman]

Change to use drmres helpers drmm_kzalloc() to allocate driver data
and drmm_encoder_init() to initialize the encoder. With use of drmres
the manual encoder cleanup in failure path and unbind is also removed.

Signed-off-by: Jonas Karlman <jonas at kwiboo.se>
---
 drivers/gpu/drm/rockchip/dw_hdmi-rockchip.c | 29 ++++++++-------------
 1 file changed, 11 insertions(+), 18 deletions(-)

diff --git a/drivers/gpu/drm/rockchip/dw_hdmi-rockchip.c b/drivers/gpu/drm/rockchip/dw_hdmi-rockchip.c
index 435352f91b88..982d0829f278 100644
--- a/drivers/gpu/drm/rockchip/dw_hdmi-rockchip.c
+++ b/drivers/gpu/drm/rockchip/dw_hdmi-rockchip.c
@@ -14,6 +14,7 @@
 
 #include <drm/bridge/dw_hdmi.h>
 #include <drm/drm_edid.h>
+#include <drm/drm_managed.h>
 #include <drm/drm_of.h>
 #include <drm/drm_probe_helper.h>
 #include <drm/drm_simple_kms_helper.h>
@@ -550,13 +551,14 @@ static int dw_hdmi_rockchip_bind(struct device *dev, struct device *master,
 	if (!drv_data)
 		return -ENODEV;
 
-	hdmi = devm_kzalloc(dev, sizeof(*hdmi), GFP_KERNEL);
+	hdmi = drmm_kzalloc(drm, sizeof(*hdmi), GFP_KERNEL);
 	if (!hdmi)
 		return -ENOMEM;
 
-	plat_data = devm_kmemdup(dev, drv_data, sizeof(*drv_data), GFP_KERNEL);
+	plat_data = drmm_kzalloc(drm, sizeof(*drv_data), GFP_KERNEL);
 	if (!plat_data)
 		return -ENOMEM;
+	memcpy(plat_data, drv_data, sizeof(*drv_data));
 
 	hdmi->dev = dev;
 	hdmi->plat_data = plat_data;
@@ -608,28 +610,20 @@ static int dw_hdmi_rockchip_bind(struct device *dev, struct device *master,
 			     FIELD_PREP_WM16(RK3568_HDMI_SCLIN_MSK, 1));
 	}
 
+	ret = drmm_encoder_init(drm, encoder, NULL, DRM_MODE_ENCODER_TMDS, NULL);
+	if (ret)
+		return dev_err_probe(dev, ret, "failed to init encoder\n");
+
 	drm_encoder_helper_add(encoder, &dw_hdmi_rockchip_encoder_helper_funcs);
-	drm_simple_encoder_init(drm, encoder, DRM_MODE_ENCODER_TMDS);
 
 	platform_set_drvdata(pdev, hdmi);
 
 	hdmi->hdmi = dw_hdmi_bind(pdev, encoder, plat_data);
-
-	/*
-	 * If dw_hdmi_bind() fails we'll never call dw_hdmi_unbind(),
-	 * which would have called the encoder cleanup.  Do it manually.
-	 */
-	if (IS_ERR(hdmi->hdmi)) {
-		ret = PTR_ERR(hdmi->hdmi);
-		goto err_bind;
-	}
+	if (IS_ERR(hdmi->hdmi))
+		return dev_err_probe(dev, PTR_ERR(hdmi->hdmi),
+				     "failed to bind encoder\n");
 
 	return 0;
-
-err_bind:
-	drm_encoder_cleanup(encoder);
-
-	return ret;
 }
 
 static void dw_hdmi_rockchip_unbind(struct device *dev, struct device *master,
@@ -638,7 +632,6 @@ static void dw_hdmi_rockchip_unbind(struct device *dev, struct device *master,
 	struct rockchip_hdmi *hdmi = dev_get_drvdata(dev);
 
 	dw_hdmi_unbind(hdmi->hdmi);
-	drm_encoder_cleanup(&hdmi->encoder.encoder);
 }
 
 static const struct component_ops dw_hdmi_rockchip_ops = {
-- 
2.54.0