linux-kernel - [PATCH v2 1/4] drm/bridge: imx8qxp-pxl2dpi: Use dev_err

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Message-Id: <20250107143900.988567-2-alexander.stein@ew.tq-group.com>
Date: Tue,  7 Jan 2025 15:38:57 +0100
From: Alexander Stein <alexander.stein@...tq-group.com>
To: Liu Ying <victor.liu@....com>,
	Andrzej Hajda <andrzej.hajda@...el.com>,
	Neil Armstrong <neil.armstrong@...aro.org>,
	Robert Foss <rfoss@...nel.org>,
	Laurent Pinchart <Laurent.pinchart@...asonboard.com>,
	Jonas Karlman <jonas@...boo.se>,
	Jernej Skrabec <jernej.skrabec@...il.com>,
	Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>,
	Maxime Ripard <mripard@...nel.org>,
	Thomas Zimmermann <tzimmermann@...e.de>,
	David Airlie <airlied@...il.com>,
	Simona Vetter <simona@...ll.ch>,
	Shawn Guo <shawnguo@...nel.org>,
	Sascha Hauer <s.hauer@...gutronix.de>,
	Pengutronix Kernel Team <kernel@...gutronix.de>,
	Fabio Estevam <festevam@...il.com>
Cc: Alexander Stein <alexander.stein@...tq-group.com>,
	dri-devel@...ts.freedesktop.org,
	imx@...ts.linux.dev,
	linux-arm-kernel@...ts.infradead.org,
	linux-kernel@...r.kernel.org
Subject: [PATCH v2 1/4] drm/bridge: imx8qxp-pxl2dpi: Use dev_err_probe

This simplifies the code and gives additional information upon deferral.

Signed-off-by: Alexander Stein <alexander.stein@...tq-group.com>
---
 drivers/gpu/drm/bridge/imx/imx8qxp-pxl2dpi.c | 26 ++++++--------------
 1 file changed, 7 insertions(+), 19 deletions(-)

diff --git a/drivers/gpu/drm/bridge/imx/imx8qxp-pxl2dpi.c b/drivers/gpu/drm/bridge/imx/imx8qxp-pxl2dpi.c
index 65cf3a6c8ec69..038eaff889bb7 100644
--- a/drivers/gpu/drm/bridge/imx/imx8qxp-pxl2dpi.c
+++ b/drivers/gpu/drm/bridge/imx/imx8qxp-pxl2dpi.c
@@ -398,20 +398,12 @@ static int imx8qxp_pxl2dpi_bridge_probe(struct platform_device *pdev)
 		return -ENOMEM;
 
 	p2d->regmap = syscon_node_to_regmap(np->parent);
-	if (IS_ERR(p2d->regmap)) {
-		ret = PTR_ERR(p2d->regmap);
-		if (ret != -EPROBE_DEFER)
-			DRM_DEV_ERROR(dev, "failed to get regmap: %d\n", ret);
-		return ret;
-	}
+	if (IS_ERR(p2d->regmap))
+		return dev_err_probe(dev, ret, "failed to get regmap\n");
 
 	ret = imx_scu_get_handle(&p2d->ipc_handle);
-	if (ret) {
-		if (ret != -EPROBE_DEFER)
-			DRM_DEV_ERROR(dev, "failed to get SCU ipc handle: %d\n",
-				      ret);
-		return ret;
-	}
+	if (ret)
+		return dev_err_probe(dev, ret, "failed to get SCU ipc handle\n");
 
 	p2d->dev = dev;
 
@@ -422,13 +414,9 @@ static int imx8qxp_pxl2dpi_bridge_probe(struct platform_device *pdev)
 	}
 
 	p2d->next_bridge = imx8qxp_pxl2dpi_find_next_bridge(p2d);
-	if (IS_ERR(p2d->next_bridge)) {
-		ret = PTR_ERR(p2d->next_bridge);
-		if (ret != -EPROBE_DEFER)
-			DRM_DEV_ERROR(dev, "failed to find next bridge: %d\n",
-				      ret);
-		return ret;
-	}
+	if (IS_ERR(p2d->next_bridge))
+		return dev_err_probe(dev, PTR_ERR(p2d->next_bridge),
+				     "failed to find next bridge\n");
 
 	ret = imx8qxp_pxl2dpi_set_pixel_link_sel(p2d);
 	if (ret)
-- 
2.34.1