linux-kernel - [PATCH v6 3/3] arm64: dts: imx8mm-phyboard-polis-peb-av-10: Set lvds-vod-swing

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Message-Id: <20241212121712.214639-4-andrej.picej@norik.com>
Date: Thu, 12 Dec 2024 13:17:12 +0100
From: Andrej Picej <andrej.picej@...ik.com>
To: andrzej.hajda@...el.com,
	neil.armstrong@...aro.org,
	rfoss@...nel.org,
	Laurent.pinchart@...asonboard.com,
	jonas@...boo.se,
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	airlied@...il.com,
	simona@...ll.ch,
	maarten.lankhorst@...ux.intel.com,
	mripard@...nel.org,
	tzimmermann@...e.de,
	robh@...nel.org,
	krzk+dt@...nel.org,
	conor+dt@...nel.org,
	shawnguo@...nel.org,
	s.hauer@...gutronix.de,
	kernel@...gutronix.de,
	festevam@...il.com,
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Cc: dri-devel@...ts.freedesktop.org,
	devicetree@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	imx@...ts.linux.dev,
	linux-arm-kernel@...ts.infradead.org,
	upstream@...ts.phytec.de
Subject: [PATCH v6 3/3] arm64: dts: imx8mm-phyboard-polis-peb-av-10: Set lvds-vod-swing

Set custom differential output voltage for LVDS, to fulfill requirements
of the connected display. LVDS differential voltage for data-lanes and
clock output has to be between 200 mV and 600 mV.
Driver sets 200 Ohm near-end termination by default.

Signed-off-by: Andrej Picej <andrej.picej@...ik.com>
---
Changes in v6:
- no change
Changes in v5:
- no change
Changes in v4:
- no change
Changes in v3:
- no change
Changes in v2:
- use new properties from previous patches
---
 .../boot/dts/freescale/imx8mm-phyboard-polis-peb-av-10.dtso     | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/arch/arm64/boot/dts/freescale/imx8mm-phyboard-polis-peb-av-10.dtso b/arch/arm64/boot/dts/freescale/imx8mm-phyboard-polis-peb-av-10.dtso
index a9de42cf14be..8bf9cc553bea 100644
--- a/arch/arm64/boot/dts/freescale/imx8mm-phyboard-polis-peb-av-10.dtso
+++ b/arch/arm64/boot/dts/freescale/imx8mm-phyboard-polis-peb-av-10.dtso
@@ -186,6 +186,8 @@ port@2 {
 			reg = <2>;
 			bridge_out: endpoint {
 				remote-endpoint = <&panel_in>;
+				ti,lvds-vod-swing-clock-microvolt = <200000 600000>;
+				ti,lvds-vod-swing-data-microvolt = <200000 600000>;
 			};
 		};
 	};
-- 
2.34.1