diff options
| author | Wig Cheng <onlywig@gmail.com> | 2026-02-26 22:48:19 +0800 |
|---|---|---|
| committer | Frank Li <Frank.Li@nxp.com> | 2026-03-13 14:18:43 -0400 |
| commit | 3147e56028a4e7afff47ffd77e99178e7fe113f0 (patch) | |
| tree | 593e9738baed02ecc51da6e9b5566436e8769155 | |
| parent | 6fb408d59b74dbb9a69a0f075c177eaed0c884f8 (diff) | |
| download | linux-3147e56028a4e7afff47ffd77e99178e7fe113f0.tar.gz linux-3147e56028a4e7afff47ffd77e99178e7fe113f0.zip | |
arm64: dts: freescale: add pixpaper display overlay for i.MX93 FRDM
Add device tree overlay to support the MayQueen PixPaper e-paper display
on the NXP i.MX93 FRDM board. The display is connected via LPSPI3
interface and uses GPIO pins for reset, busy and DC control.
The overlay configures:
- LPSPI3 pinmux for SPI communication (MOSI, MISO, CLK, CE0)
- PixPaper display device with proper GPIO assignments
- SPI frequency set to 1MHz for stable operation
Enable Open-EP Community pixpaper-213-c support on NXP i.MX93.
Signed-off-by: Wig Cheng <onlywig@gmail.com>
Signed-off-by: Frank Li <Frank.Li@nxp.com>
| -rw-r--r-- | arch/arm64/boot/dts/freescale/Makefile | 4 | ||||
| -rw-r--r-- | arch/arm64/boot/dts/freescale/imx93-11x11-frdm-pixpaper.dtso | 50 |
2 files changed, 54 insertions, 0 deletions
diff --git a/arch/arm64/boot/dts/freescale/Makefile b/arch/arm64/boot/dts/freescale/Makefile index e0738525d37e..0bea667e7e47 100644 --- a/arch/arm64/boot/dts/freescale/Makefile +++ b/arch/arm64/boot/dts/freescale/Makefile @@ -420,6 +420,10 @@ dtb-$(CONFIG_ARCH_MXC) += imx93-9x9-qsb-i3c.dtb dtb-$(CONFIG_ARCH_MXC) += imx93-11x11-evk.dtb dtb-$(CONFIG_ARCH_MXC) += imx93-11x11-frdm.dtb + +imx93-11x11-frdm-pixpaper-dtbs += imx93-11x11-frdm.dtb imx93-11x11-frdm-pixpaper.dtbo +dtb-$(CONFIG_ARCH_MXC) += imx93-11x11-frdm-pixpaper.dtb + dtb-$(CONFIG_ARCH_MXC) += imx93-14x14-evk.dtb dtb-$(CONFIG_ARCH_MXC) += imx93-kontron-bl-osm-s.dtb dtb-$(CONFIG_ARCH_MXC) += imx93-phyboard-nash.dtb diff --git a/arch/arm64/boot/dts/freescale/imx93-11x11-frdm-pixpaper.dtso b/arch/arm64/boot/dts/freescale/imx93-11x11-frdm-pixpaper.dtso new file mode 100644 index 000000000000..d220d7e07df2 --- /dev/null +++ b/arch/arm64/boot/dts/freescale/imx93-11x11-frdm-pixpaper.dtso @@ -0,0 +1,50 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * Device Tree Overlay for Mayqueen (Open-EP Community) pixpaper display + * support on NXP FRDM i.MX 93 Development Board + * + * Copyright (C) 2026 Wig Cheng <onlywig@gmail.com> + */ + +#include <dt-bindings/gpio/gpio.h> +#include "imx93-pinfunc.h" + +/dts-v1/; +/plugin/; + +&iomuxc { + pinctrl_epd_ctrl: epdctrlgrp { + fsl,pins = < + MX93_PAD_GPIO_IO05__GPIO2_IO05 0x31e /* DC pin */ + MX93_PAD_GPIO_IO06__GPIO2_IO06 0x31e /* RESET pin */ + MX93_PAD_GPIO_IO26__GPIO2_IO26 0x31e /* BUSY pin */ + >; + }; + + pinctrl_lpspi3: lpspi3grp { + fsl,pins = < + MX93_PAD_GPIO_IO08__GPIO2_IO08 0x3fe /* SPI3 CE0 */ + MX93_PAD_GPIO_IO09__LPSPI3_SIN 0x3fe /* SPI3 MISO */ + MX93_PAD_GPIO_IO10__LPSPI3_SOUT 0x3fe /* SPI3 MOSI */ + MX93_PAD_GPIO_IO11__LPSPI3_SCK 0x3fe /* SPI3 CLK */ + >; + }; +}; + +&lpspi3 { + #address-cells = <1>; + #size-cells = <0>; + cs-gpios = <&gpio2 8 GPIO_ACTIVE_LOW>; + pinctrl-0 = <&pinctrl_lpspi3>, <&pinctrl_epd_ctrl>; + pinctrl-names = "default"; + status = "okay"; + + display@0 { + compatible = "mayqueen,pixpaper"; + reg = <0>; + busy-gpios = <&gpio2 26 GPIO_ACTIVE_HIGH>; + dc-gpios = <&gpio2 5 GPIO_ACTIVE_HIGH>; + reset-gpios = <&gpio2 6 GPIO_ACTIVE_HIGH>; + spi-max-frequency = <1000000>; + }; +}; |