linux-kernel - [PATCH v6 09/10] drm/bridge: sii9234: Use fwnode APIs to abstract DT dependent API away

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Message-Id: <20240526202115.129049-10-sui.jingfeng@linux.dev>
Date: Mon, 27 May 2024 04:21:14 +0800
From: Sui Jingfeng <sui.jingfeng@...ux.dev>
To: Robert Foss <rfoss@...nel.org>,
	Laurent Pinchart <Laurent.pinchart@...asonboard.com>
Cc: dri-devel@...ts.freedesktop.org,
	linux-kernel@...r.kernel.org,
	Sui Jingfeng <sui.jingfeng@...ux.dev>
Subject: [PATCH v6 09/10] drm/bridge: sii9234: Use fwnode APIs to abstract DT dependent API away

Switch to use the freshly created drm_bridge_set_node() helper, no
functional changes. The reason behind of this introduction is that
the name 'of_node' itself has a smell of DT dependent, and it is a
internal memeber, when there has helper function, we should use the
revelant helper and avoid directly referencing and/or dereferencing
it.

Signed-off-by: Sui Jingfeng <sui.jingfeng@...ux.dev>
---
 drivers/gpu/drm/bridge/sii9234.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/bridge/sii9234.c b/drivers/gpu/drm/bridge/sii9234.c
index 7d2bbc31bac9..d930c093abb3 100644
--- a/drivers/gpu/drm/bridge/sii9234.c
+++ b/drivers/gpu/drm/bridge/sii9234.c
@@ -817,10 +817,11 @@ static int sii9234_init_resources(struct sii9234 *ctx,
 				  struct i2c_client *client)
 {
 	struct i2c_adapter *adapter = client->adapter;
+	struct fwnode_handle *fwnode = dev_fwnode(ctx->dev);
 	int ret;
 
-	if (!ctx->dev->of_node) {
-		dev_err(ctx->dev, "not DT device\n");
+	if (!fwnode) {
+		dev_err(ctx->dev, "firmware data is missing\n");
 		return -ENODEV;
 	}
 
-- 
2.34.1