linux-kernel - [PATCH] ARM: dts: imx6dl-yapp4: Configure the OLED display segment offset

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Message-Id: <1618326076-6869-1-git-send-email-michal.vokac@ysoft.com>
Date:   Tue, 13 Apr 2021 17:01:16 +0200
From:   Michal Vokáč <michal.vokac@...ft.com>
To:     Rob Herring <robh+dt@...nel.org>, Shawn Guo <shawnguo@...nel.org>
Cc:     Fabio Estevam <festevam@...il.com>, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org,
        Michal Vokáč <michal.vokac@...ft.com>
Subject: [PATCH] ARM: dts: imx6dl-yapp4: Configure the OLED display segment offset

The imx6dl-yapp4 platform uses a GE-LX012864FWPP3N0000 OLED display.
The display consist of a 128x64 OLED panel and a SSD1305 controller.

The OLED panel resolution is 128x64 but the built-in controller default
resolution is 132x64. To display properly a segment offset needs to be
configured.

Signed-off-by: Michal Vokáč <michal.vokac@...ft.com>
---
 arch/arm/boot/dts/imx6dl-yapp4-common.dtsi | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/arm/boot/dts/imx6dl-yapp4-common.dtsi b/arch/arm/boot/dts/imx6dl-yapp4-common.dtsi
index 51972c85e207..111d4d331f98 100644
--- a/arch/arm/boot/dts/imx6dl-yapp4-common.dtsi
+++ b/arch/arm/boot/dts/imx6dl-yapp4-common.dtsi
@@ -373,6 +373,7 @@
 		solomon,height = <64>;
 		solomon,width = <128>;
 		solomon,page-offset = <0>;
+		solomon,col-offset = <4>;
 		solomon,prechargep2 = <15>;
 		reset-gpios = <&gpio_oled 1 GPIO_ACTIVE_LOW>;
 		vbat-supply = <&sw2_reg>;
-- 
2.1.4