linux-kernel - [PATCH 2/2] drm/bridge: tc358768: switch to bus-width

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Message-ID: <20241003133904.69244-2-krzysztof.kozlowski@linaro.org>
Date: Thu,  3 Oct 2024 15:39:04 +0200
From: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
To: 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>,
	David Airlie <airlied@...il.com>,
	Simona Vetter <simona@...ll.ch>,
	Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>,
	Maxime Ripard <mripard@...nel.org>,
	Thomas Zimmermann <tzimmermann@...e.de>,
	Rob Herring <robh@...nel.org>,
	Krzysztof Kozlowski <krzk+dt@...nel.org>,
	Conor Dooley <conor+dt@...nel.org>,
	Peter Ujfalusi <peter.ujfalusi@...com>,
	dri-devel@...ts.freedesktop.org,
	devicetree@...r.kernel.org,
	linux-kernel@...r.kernel.org
Cc: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
Subject: [PATCH 2/2] drm/bridge: tc358768: switch to bus-width

"data-lines" property is way too similar to "data-lanes".  It is also
duplicating "bus-width" from video-interfaces.yaml schema.  "data-lines"
was deprecated in the bindings and "bus-width" is preferred, so parse it
instead while keeping things backwards compatible.

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
---
 drivers/gpu/drm/bridge/tc358768.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/bridge/tc358768.c b/drivers/gpu/drm/bridge/tc358768.c
index 0e8813278a2f..fc96fa5aab54 100644
--- a/drivers/gpu/drm/bridge/tc358768.c
+++ b/drivers/gpu/drm/bridge/tc358768.c
@@ -443,7 +443,9 @@ static int tc358768_dsi_host_attach(struct mipi_dsi_host *host,
 	ret = -EINVAL;
 	ep = of_graph_get_endpoint_by_regs(host->dev->of_node, 0, 0);
 	if (ep) {
-		ret = of_property_read_u32(ep, "data-lines", &priv->pd_lines);
+		ret = of_property_read_u32(ep, "bus-width", &priv->pd_lines);
+		if (ret)
+			ret = of_property_read_u32(ep, "data-lines", &priv->pd_lines);
 
 		of_node_put(ep);
 	}
-- 
2.43.0