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https://git.kernel.org/pub/scm/linux/kernel/git/chenhuacai/linux-loongson
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1c0ff333f2
Freescale i.MX8qxp Display Controller is implemented as construction set of building blocks with unified concept and standardized interfaces. Document all existing processing units. Signed-off-by: Liu Ying <victor.liu@nxp.com> Reviewed-by: Rob Herring (Arm) <robh@kernel.org> Link: https://lore.kernel.org/r/20250414035028.1561475-2-victor.liu@nxp.com
54 lines
1.2 KiB
YAML
54 lines
1.2 KiB
YAML
# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
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%YAML 1.2
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---
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$id: http://devicetree.org/schemas/display/imx/fsl,imx8qxp-dc-signature.yaml#
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$schema: http://devicetree.org/meta-schemas/core.yaml#
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title: Freescale i.MX8qxp Display Controller Signature Unit
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description: |
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In order to control the correctness of display output, signature values can
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be computed for each frame and compared against reference values. In case of
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a mismatch (signature violation) a HW event can be triggered, for example a
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SW interrupt.
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This unit supports signature computation, reference check, evaluation windows,
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alpha masking and panic modes.
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maintainers:
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- Liu Ying <victor.liu@nxp.com>
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properties:
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compatible:
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const: fsl,imx8qxp-dc-signature
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reg:
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maxItems: 1
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interrupts:
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maxItems: 3
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interrupt-names:
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items:
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- const: shdload
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- const: valid
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- const: error
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required:
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- compatible
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- reg
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- interrupts
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- interrupt-names
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additionalProperties: false
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examples:
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- |
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signature@5618d000 {
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compatible = "fsl,imx8qxp-dc-signature";
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reg = <0x5618d000 0x140>;
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interrupt-parent = <&dc0_intc>;
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interrupts = <22>, <23>, <24>;
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interrupt-names = "shdload", "valid", "error";
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};
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