From 304feb6b9092a0efff25d0adc0bcdcf482bb8849 Mon Sep 17 00:00:00 2001 From: Alexander Stein Date: Thu, 8 Dec 2022 10:08:42 +0100 Subject: [PATCH] arm64: dts: freescale: Add LVDS overlay for TQMa8MPxL This adds an overlay for the supported LVDS display tianma tm070jvhg33. The display timings have to be specified explicitly. Using the typical pixel clock, the LDB clock can not be configured as the 7-fold of that. By setting pixel clock to 74.25 MHz, LDB can be configured to exactly 519.75 MHz. Signed-off-by: Alexander Stein Signed-off-by: Shawn Guo --- arch/arm64/boot/dts/freescale/Makefile | 4 ++ .../freescale/imx8mp-tqma8mpql-mba8mpxl-lvds.dtso | 61 ++++++++++++++++++++++ 2 files changed, 65 insertions(+) create mode 100644 arch/arm64/boot/dts/freescale/imx8mp-tqma8mpql-mba8mpxl-lvds.dtso diff --git a/arch/arm64/boot/dts/freescale/Makefile b/arch/arm64/boot/dts/freescale/Makefile index e0f6a79..70dadf6 100644 --- a/arch/arm64/boot/dts/freescale/Makefile +++ b/arch/arm64/boot/dts/freescale/Makefile @@ -98,6 +98,10 @@ dtb-$(CONFIG_ARCH_MXC) += imx8mp-verdin-nonwifi-dahlia.dtb dtb-$(CONFIG_ARCH_MXC) += imx8mp-verdin-nonwifi-dev.dtb dtb-$(CONFIG_ARCH_MXC) += imx8mp-verdin-wifi-dahlia.dtb dtb-$(CONFIG_ARCH_MXC) += imx8mp-verdin-wifi-dev.dtb + +imx8mp-tqma8mpql-mba8mpxl-lvds-dtbs += imx8mp-tqma8mpql-mba8mpxl.dtb imx8mp-tqma8mpql-mba8mpxl-lvds.dtbo +dtb-$(CONFIG_ARCH_MXC) += imx8mp-tqma8mpql-mba8mpxl-lvds.dtb + dtb-$(CONFIG_ARCH_MXC) += imx8mq-evk.dtb dtb-$(CONFIG_ARCH_MXC) += imx8mq-hummingboard-pulse.dtb dtb-$(CONFIG_ARCH_MXC) += imx8mq-kontron-pitx-imx8m.dtb diff --git a/arch/arm64/boot/dts/freescale/imx8mp-tqma8mpql-mba8mpxl-lvds.dtso b/arch/arm64/boot/dts/freescale/imx8mp-tqma8mpql-mba8mpxl-lvds.dtso new file mode 100644 index 0000000..ea44d60 --- /dev/null +++ b/arch/arm64/boot/dts/freescale/imx8mp-tqma8mpql-mba8mpxl-lvds.dtso @@ -0,0 +1,61 @@ +// SPDX-License-Identifier: (GPL-2.0-or-later OR MIT) +/* + * Copyright (c) 2022 TQ-Systems GmbH , + * D-82229 Seefeld, Germany. + * Author: Alexander Stein + */ + +/dts-v1/; +/plugin/; + +&{/} { + compatible = "tq,imx8mp-tqma8mpql-mba8mpxl", "tq,imx8mp-tqma8mpql", "fsl,imx8mp"; +}; + +&backlight_lvds { + status = "okay"; +}; + +&display { + compatible = "tianma,tm070jvhg33"; + status = "okay"; + + panel-timing { + clock-frequency = <74250000>; + hactive = <1280>; + vactive = <800>; + hfront-porch = <64>; + hback-porch = <5>; + hsync-len = <1>; + vfront-porch = <40>; + vback-porch = <2>; + vsync-len = <1>; + de-active = <1>; + }; + + port { + panel_in_lvds0: endpoint { + remote-endpoint = <&ldb_lvds_ch0>; + }; + }; +}; + +&lcdif2 { + status = "okay"; +}; + +&lvds_bridge { + status = "okay"; + + ports { + port@1 { + ldb_lvds_ch0: endpoint { + remote-endpoint = <&panel_in_lvds0>; + }; + }; + }; +}; + +&pwm2 { + status = "okay"; +}; -- 2.7.4