[PATCH 21/34] drm/omap: dss: hdmi4: convert to devm_drm_bridge_alloc() API

[Luca Ceresoli]

This is the new API for allocating DRM bridges.

Switching from a non-devm to a devm allocation allows removing the kfree()
in the remove function and in the probe error management code, and as a
consequence to simplify the code flow by removing now unnecessary gotos.

Signed-off-by: Luca Ceresoli <luca.ceresoli at bootlin.com>

---

Cc: Tomi Valkeinen <tomi.valkeinen at ideasonboard.com>
---
 drivers/gpu/drm/omapdrm/dss/hdmi4.c | 26 ++++++++++----------------
 1 file changed, 10 insertions(+), 16 deletions(-)

diff --git a/drivers/gpu/drm/omapdrm/dss/hdmi4.c b/drivers/gpu/drm/omapdrm/dss/hdmi4.c
index a3b22952fdc32b5899dae82d413108c5c0a1c3c8..3cd612af24498b057c33eaecb3d43c8df76cd23e 100644
--- a/drivers/gpu/drm/omapdrm/dss/hdmi4.c
+++ b/drivers/gpu/drm/omapdrm/dss/hdmi4.c
@@ -505,7 +505,6 @@ static const struct drm_bridge_funcs hdmi4_bridge_funcs = {
 
 static void hdmi4_bridge_init(struct omap_hdmi *hdmi)
 {
-	hdmi->bridge.funcs = &hdmi4_bridge_funcs;
 	hdmi->bridge.of_node = hdmi->pdev->dev.of_node;
 	hdmi->bridge.ops = DRM_BRIDGE_OP_EDID;
 	hdmi->bridge.type = DRM_MODE_CONNECTOR_HDMIA;
@@ -761,9 +760,9 @@ static int hdmi4_probe(struct platform_device *pdev)
 	int irq;
 	int r;
 
-	hdmi = kzalloc(sizeof(*hdmi), GFP_KERNEL);
-	if (!hdmi)
-		return -ENOMEM;
+	hdmi = devm_drm_bridge_alloc(&pdev->dev, struct omap_hdmi, bridge, &hdmi4_bridge_funcs);
+	if (IS_ERR(hdmi))
+		return PTR_ERR(hdmi);
 
 	hdmi->pdev = pdev;
 
@@ -774,25 +773,24 @@ static int hdmi4_probe(struct platform_device *pdev)
 
 	r = hdmi4_probe_of(hdmi);
 	if (r)
-		goto err_free;
+		return r;
 
 	r = hdmi_wp_init(pdev, &hdmi->wp, 4);
 	if (r)
-		goto err_free;
+		return r;
 
 	r = hdmi_phy_init(pdev, &hdmi->phy, 4);
 	if (r)
-		goto err_free;
+		return r;
 
 	r = hdmi4_core_init(pdev, &hdmi->core);
 	if (r)
-		goto err_free;
+		return r;
 
 	irq = platform_get_irq(pdev, 0);
 	if (irq < 0) {
 		DSSERR("platform_get_irq failed\n");
-		r = -ENODEV;
-		goto err_free;
+		return -ENODEV;
 	}
 
 	r = devm_request_threaded_irq(&pdev->dev, irq,
@@ -800,7 +798,7 @@ static int hdmi4_probe(struct platform_device *pdev)
 			IRQF_ONESHOT, "OMAP HDMI", hdmi);
 	if (r) {
 		DSSERR("HDMI IRQ request failed\n");
-		goto err_free;
+		return r;
 	}
 
 	hdmi->vdda_reg = devm_regulator_get(&pdev->dev, "vdda");
@@ -808,7 +806,7 @@ static int hdmi4_probe(struct platform_device *pdev)
 		r = PTR_ERR(hdmi->vdda_reg);
 		if (r != -EPROBE_DEFER)
 			DSSERR("can't get VDDA regulator\n");
-		goto err_free;
+		return r;
 	}
 
 	pm_runtime_enable(&pdev->dev);
@@ -827,8 +825,6 @@ static int hdmi4_probe(struct platform_device *pdev)
 	hdmi4_uninit_output(hdmi);
 err_pm_disable:
 	pm_runtime_disable(&pdev->dev);
-err_free:
-	kfree(hdmi);
 	return r;
 }
 
@@ -841,8 +837,6 @@ static void hdmi4_remove(struct platform_device *pdev)
 	hdmi4_uninit_output(hdmi);
 
 	pm_runtime_disable(&pdev->dev);
-
-	kfree(hdmi);
 }
 
 static const struct of_device_id hdmi_of_match[] = {

-- 
2.49.0