1# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) 2%YAML 1.2 3--- 4$id: http://devicetree.org/schemas/display/imx/fsl,imx8qxp-dc-signature.yaml# 5$schema: http://devicetree.org/meta-schemas/core.yaml# 6 7title: Freescale i.MX8qxp Display Controller Signature Unit 8 9description: | 10 In order to control the correctness of display output, signature values can 11 be computed for each frame and compared against reference values. In case of 12 a mismatch (signature violation) a HW event can be triggered, for example a 13 SW interrupt. 14 15 This unit supports signature computation, reference check, evaluation windows, 16 alpha masking and panic modes. 17 18maintainers: 19 - Liu Ying <victor.liu@nxp.com> 20 21properties: 22 compatible: 23 const: fsl,imx8qxp-dc-signature 24 25 reg: 26 maxItems: 1 27 28 interrupts: 29 maxItems: 3 30 31 interrupt-names: 32 items: 33 - const: shdload 34 - const: valid 35 - const: error 36 37required: 38 - compatible 39 - reg 40 - interrupts 41 - interrupt-names 42 43additionalProperties: false 44 45examples: 46 - | 47 signature@5618d000 { 48 compatible = "fsl,imx8qxp-dc-signature"; 49 reg = <0x5618d000 0x140>; 50 interrupt-parent = <&dc0_intc>; 51 interrupts = <22>, <23>, <24>; 52 interrupt-names = "shdload", "valid", "error"; 53 }; 54