linux-kernel - [PATCH 2/2] drm/mediatek/hdmi: Simplify with dev_err

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Message-ID: <20250112134708.46100-2-krzysztof.kozlowski@linaro.org>
Date: Sun, 12 Jan 2025 14:47:08 +0100
From: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
To: Chun-Kuang Hu <chunkuang.hu@...nel.org>,
	Philipp Zabel <p.zabel@...gutronix.de>,
	David Airlie <airlied@...il.com>,
	Simona Vetter <simona@...ll.ch>,
	Matthias Brugger <matthias.bgg@...il.com>,
	AngeloGioacchino Del Regno <angelogioacchino.delregno@...labora.com>,
	dri-devel@...ts.freedesktop.org,
	linux-mediatek@...ts.infradead.org,
	linux-kernel@...r.kernel.org,
	linux-arm-kernel@...ts.infradead.org
Cc: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
Subject: [PATCH 2/2] drm/mediatek/hdmi: Simplify with dev_err_probe

Use dev_err_probe() to make error code and deferred probe handling
simpler.

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
---
 drivers/gpu/drm/mediatek/mtk_hdmi.c | 22 +++++++---------------
 1 file changed, 7 insertions(+), 15 deletions(-)

diff --git a/drivers/gpu/drm/mediatek/mtk_hdmi.c b/drivers/gpu/drm/mediatek/mtk_hdmi.c
index 4b0eb7dc25d8..22935fdc5afe 100644
--- a/drivers/gpu/drm/mediatek/mtk_hdmi.c
+++ b/drivers/gpu/drm/mediatek/mtk_hdmi.c
@@ -1429,19 +1429,13 @@ static int mtk_hdmi_dt_parse_pdata(struct mtk_hdmi *hdmi,
 	int ret;
 
 	ret = mtk_hdmi_get_all_clk(hdmi, np);
-	if (ret) {
-		if (ret != -EPROBE_DEFER)
-			dev_err(dev, "Failed to get clocks: %d\n", ret);
-
-		return ret;
-	}
+	if (ret)
+		return dev_err_probe(dev, ret, "Failed to get clocks\n");
 
 	/* The CEC module handles HDMI hotplug detection */
 	cec_np = of_get_compatible_child(np->parent, "mediatek,mt8173-cec");
-	if (!cec_np) {
-		dev_err(dev, "Failed to find CEC node\n");
-		return -EINVAL;
-	}
+	if (!cec_np)
+		return dev_err_probe(dev, -EINVAL, "Failed to find CEC node\n");
 
 	cec_pdev = of_find_device_by_node(cec_np);
 	if (!cec_pdev) {
@@ -1492,10 +1486,9 @@ static int mtk_hdmi_dt_parse_pdata(struct mtk_hdmi *hdmi,
 
 	i2c_np = of_parse_phandle(remote, "ddc-i2c-bus", 0);
 	if (!i2c_np) {
-		dev_err(dev, "Failed to find ddc-i2c-bus node in %pOF\n",
-			remote);
+		ret = dev_err_probe(dev, -EINVAL, "Failed to find ddc-i2c-bus node in %pOF\n",
+				    remote);
 		of_node_put(remote);
-		ret = -EINVAL;
 		goto put_device;
 	}
 	of_node_put(remote);
@@ -1503,8 +1496,7 @@ static int mtk_hdmi_dt_parse_pdata(struct mtk_hdmi *hdmi,
 	hdmi->ddc_adpt = of_find_i2c_adapter_by_node(i2c_np);
 	of_node_put(i2c_np);
 	if (!hdmi->ddc_adpt) {
-		dev_err(dev, "Failed to get ddc i2c adapter by node\n");
-		ret = -EINVAL;
+		ret = dev_err_probe(dev, -EINVAL, "Failed to get ddc i2c adapter by node\n");
 		goto put_device;
 	}
 
-- 
2.43.0