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https://git.kernel.org/pub/scm/linux/kernel/git/chenhuacai/linux-loongson
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991f125472
Drop the RCPM consumer example from the binding (LPUART device node),
because:
1. Using phandles is typical syntax, thus explaining it is not needed in
the provider binding,
2. It has 'fsl,rcpm-wakeup' property which is not allowed by LPUART
binding so it causes dt_binding_check warning:
fsl,rcpm.example.dtb: serial@2950000: Unevaluated properties are not allowed ('fsl,rcpm-wakeup' was unexpected)
from schema $id: http://devicetree.org/schemas/serial/fsl-lpuart.yaml#
Alternatively, this property could be added to LPUART binding
(fsl-lpuart.yaml), but it looks like none of in-tree DTS use it.
Fixes: ad21e3840a ("dt-bindings: soc: fsl: Convert rcpm to yaml format")
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Reviewed-by: Frank Li <Frank.Li@nxp.com>
Acked-by: Conor Dooley <conor.dooley@microchip.com>
Link: https://lore.kernel.org/r/20240811153507.126512-1-krzysztof.kozlowski@linaro.org
Signed-off-by: Rob Herring (Arm) <robh@kernel.org>
88 lines
2.5 KiB
YAML
88 lines
2.5 KiB
YAML
# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
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%YAML 1.2
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---
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$id: http://devicetree.org/schemas/soc/fsl/fsl,rcpm.yaml#
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$schema: http://devicetree.org/meta-schemas/core.yaml#
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title: Run Control and Power Management
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description:
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The RCPM performs all device-level tasks associated with device run control
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and power management.
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maintainers:
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- Frank Li <Frank.Li@nxp.com>
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properties:
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compatible:
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oneOf:
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- items:
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- enum:
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- fsl,p2041-rcpm
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- fsl,p3041-rcpm
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- fsl,p4080-rcpm
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- fsl,p5020-rcpm
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- fsl,p5040-rcpm
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- const: fsl,qoriq-rcpm-1.0
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- items:
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- enum:
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- fsl,b4420-rcpm
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- fsl,b4860-rcpm
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- fsl,t4240-rcpm
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- const: fsl,qoriq-rcpm-2.0
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- items:
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- enum:
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- fsl,t1040-rcpm
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- const: fsl,qoriq-rcpm-2.1
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- items:
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- enum:
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- fsl,ls1012a-rcpm
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- fsl,ls1021a-rcpm
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- fsl,ls1028a-rcpm
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- fsl,ls1043a-rcpm
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- fsl,ls1046a-rcpm
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- fsl,ls1088a-rcpm
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- fsl,ls208xa-rcpm
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- fsl,lx2160a-rcpm
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- const: fsl,qoriq-rcpm-2.1+
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reg:
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maxItems: 1
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"#fsl,rcpm-wakeup-cells":
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description: |
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The number of IPPDEXPCR register cells in the
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fsl,rcpm-wakeup property.
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Freescale RCPM Wakeup Source Device Tree Bindings
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Required fsl,rcpm-wakeup property should be added to a device node if
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the device can be used as a wakeup source.
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fsl,rcpm-wakeup: Consists of a phandle to the rcpm node and the IPPDEXPCR
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register cells. The number of IPPDEXPCR register cells is defined in
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"#fsl,rcpm-wakeup-cells" in the rcpm node. The first register cell is
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the bit mask that should be set in IPPDEXPCR0, and the second register
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cell is for IPPDEXPCR1, and so on.
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Note: IPPDEXPCR(IP Powerdown Exception Control Register) provides a
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mechanism for keeping certain blocks awake during STANDBY and MEM, in
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order to use them as wake-up sources.
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little-endian:
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$ref: /schemas/types.yaml#/definitions/flag
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description:
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RCPM register block is Little Endian. Without it RCPM
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will be Big Endian (default case).
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additionalProperties: false
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examples:
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- |
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#include <dt-bindings/interrupt-controller/arm-gic.h>
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global-utilities@e2000 {
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compatible = "fsl,t4240-rcpm", "fsl,qoriq-rcpm-2.0";
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reg = <0xe2000 0x1000>;
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#fsl,rcpm-wakeup-cells = <2>;
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};
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