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https://git.kernel.org/pub/scm/linux/kernel/git/chenhuacai/linux-loongson
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3a0fdc6d93
SA8255p platform abstracts resources such as clocks, interconnect configuration in Firmware. Add DT bindings for the QUP Wrapper on sa8255p platform. Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Signed-off-by: Nikunj Kela <quic_nkela@quicinc.com> Co-developed-by: Praveen Talari <quic_ptalari@quicinc.com> Signed-off-by: Praveen Talari <quic_ptalari@quicinc.com> Link: https://lore.kernel.org/r/20250721174532.14022-3-quic_ptalari@quicinc.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
108 lines
2.6 KiB
YAML
108 lines
2.6 KiB
YAML
# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
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%YAML 1.2
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---
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$id: http://devicetree.org/schemas/soc/qcom/qcom,sa8255p-geni-se-qup.yaml#
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$schema: http://devicetree.org/meta-schemas/core.yaml#
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title: GENI Serial Engine QUP Wrapper Controller
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maintainers:
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- Praveen Talari <quic_ptalari@quicinc.com>
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description:
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Generic Interface (GENI) based Qualcomm Universal Peripheral (QUP) wrapper
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is a programmable module for supporting a wide range of serial interfaces
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like UART, SPI, I2C, I3C, etc. A single QUP module can provide up to 8 Serial
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Interfaces, using its internal Serial Engines. The GENI Serial Engine QUP
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Wrapper controller is modeled as a node with zero or more child nodes each
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representing a serial engine.
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properties:
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compatible:
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const: qcom,sa8255p-geni-se-qup
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reg:
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description: QUP wrapper common register address and length.
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maxItems: 1
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"#address-cells":
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const: 2
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"#size-cells":
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const: 2
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ranges: true
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iommus:
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maxItems: 1
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dma-coherent: true
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patternProperties:
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"spi@[0-9a-f]+$":
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type: object
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description: GENI serial engine based SPI controller. SPI in master mode
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supports up to 50MHz, up to four chip selects, programmable
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data path from 4 bits to 32 bits and numerous protocol
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variants.
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additionalProperties: true
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properties:
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compatible:
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const: qcom,sa8255p-geni-spi
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"i2c@[0-9a-f]+$":
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type: object
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description: GENI serial engine based I2C controller.
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additionalProperties: true
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properties:
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compatible:
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const: qcom,sa8255p-geni-i2c
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"serial@[0-9a-f]+$":
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type: object
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description: GENI Serial Engine based UART Controller.
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additionalProperties: true
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properties:
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compatible:
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enum:
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- qcom,sa8255p-geni-uart
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- qcom,sa8255p-geni-debug-uart
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required:
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- compatible
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- reg
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- "#address-cells"
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- "#size-cells"
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- ranges
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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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soc {
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#address-cells = <2>;
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#size-cells = <2>;
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geniqup@9c0000 {
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compatible = "qcom,sa8255p-geni-se-qup";
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reg = <0 0x9c0000 0 0x6000>;
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#address-cells = <2>;
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#size-cells = <2>;
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ranges;
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serial@990000 {
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compatible = "qcom,sa8255p-geni-uart";
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reg = <0 0x990000 0 0x4000>;
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interrupts = <GIC_SPI 531 IRQ_TYPE_LEVEL_HIGH>;
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power-domains = <&scmi0_pd 0>, <&scmi0_dvfs 0>;
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power-domain-names = "power", "perf";
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};
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};
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};
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...
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