arch/arm64/boot/dts/freescale/imx93-11x11-frdm-pixpaper.dtso
Source file repositories/reference/linux-study-clean/arch/arm64/boot/dts/freescale/imx93-11x11-frdm-pixpaper.dtso
File Facts
- System
- Linux kernel
- Corpus path
arch/arm64/boot/dts/freescale/imx93-11x11-frdm-pixpaper.dtso- Extension
.dtso- Size
- 1250 bytes
- Lines
- 51
- Domain
- Architecture Layer
- Bucket
- arch/arm64
- Inferred role
- Architecture Layer: arch/arm64
- Status
- atlas-only
Why This File Exists
CPU and platform-specific kernel glue: boot entry, traps, syscall entry, interrupts, page tables, context switch, and low-level barriers.
- CPU and platform-specific kernel glue: boot entry, traps, syscall entry, interrupts, page tables, context switch, and low-level barriers.
Dependency Surface
dt-bindings/gpio/gpio.himx93-pinfunc.h
Detected Declarations
- No top-level syscall, struct, function, initcall, or export declaration detected by the generator.
Annotated Snippet
// 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>;
};
};
Annotation
- Immediate include surface: `dt-bindings/gpio/gpio.h`, `imx93-pinfunc.h`.
- Atlas domain: Architecture Layer / arch/arm64.
- Implementation status: atlas-only.
Implementation Notes
- This generated page is the file-by-file coverage layer; curated subsystem chapters should link here when they synthesize a multi-file control flow.
- Core OS pages should be promoted from atlas-only to deep-reviewed when they explain data structures, invariants, locking, lifecycle, and C implementation snippets.
- Driver-family pages are intentionally pattern-oriented unless they are part of the selected PCIe/NVMe representative device path.