[PATCH v7 2/8] dt-bindings: qcom: geni-se: describe SA8255p

Praveen Talari
2025-07-21T17:46:16Z

From: Nikunj Kela <quic_nkela@quicinc.com>

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>
---
v5 -> v6
- added Reviewed-by tag in commit

v3 -> v4
- reordered required: after properties and patternproperties
- added version log after ---

v2 -> v3
- reordered required option

v1 -> v2
- reorder sequence of tags in commit text
- resolved waring errors while encountered in dt binding and dtb check.
---
.../soc/qcom/qcom,sa8255p-geni-se-qup.yaml | 107 ++++++++++++++++++
1 file changed, 107 insertions(+)
create mode 100644 Documentation/devicetree/bindings/soc/qcom/qcom,sa8255p-geni-se-qup.yaml

diff --git a/Documentation/devicetree/bindings/soc/qcom/qcom,sa8255p-geni-se-qup.yaml b/Documentation/devicetree/bindings/soc/qcom/qcom,sa8255p-geni-se-qup.yaml
new file mode 100644
index 000000000000..352af3426d34
--- /dev/null
+++ b/Documentation/devicetree/bindings/soc/qcom/qcom,sa8255p-geni-se-qup.yaml
@@ -0,0 +1,107 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/soc/qcom/qcom,sa8255p-geni-se-qup.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: GENI Serial Engine QUP Wrapper Controller
+
+maintainers:
+ - Praveen Talari <quic_ptalari@quicinc.com>
+
+description:
+ Generic Interface (GENI) based Qualcomm Universal Peripheral (QUP) wrapper
+ is a programmable module for supporting a wide range of serial interfaces
+ like UART, SPI, I2C, I3C, etc. A single QUP module can provide up to 8 Serial
+ Interfaces, using its internal Serial Engines. The GENI Serial Engine QUP
+ Wrapper controller is modeled as a node with zero or more child nodes each
+ representing a serial engine.
+
+properties:
+ compatible:
+ const: qcom,sa8255p-geni-se-qup
+
+ reg:
+ description: QUP wrapper common register address and length.
+ maxItems: 1
+
+ "#address-cells":
+ const: 2
+
+ "#size-cells":
+ const: 2
+
+ ranges: true
+
+ iommus:
+ maxItems: 1
+
+ dma-coherent: true
+
+patternProperties:
+ "spi@[0-9a-f]+$":
+ type: object
+ description: GENI serial engine based SPI controller. SPI in master mode
+ supports up to 50MHz, up to four chip selects, programmable
+ data path from 4 bits to 32 bits and numerous protocol
+ variants.
+ additionalProperties: true
+
+ properties:
+ compatible:
+ const: qcom,sa8255p-geni-spi
+
+ "i2c@[0-9a-f]+$":
+ type: object
+ description: GENI serial engine based I2C controller.
+ additionalProperties: true
+
+ properties:
+ compatible:
+ const: qcom,sa8255p-geni-i2c
+
+ "serial@[0-9a-f]+$":
+ type: object
+ description: GENI Serial Engine based UART Controller.
+ additionalProperties: true
+
+ properties:
+ compatible:
+ enum:
+ - qcom,sa8255p-geni-uart
+ - qcom,sa8255p-geni-debug-uart
+
+required:
+ - compatible
+ - reg
+ - "#address-cells"
+ - "#size-cells"
+ - ranges
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/interrupt-controller/arm-gic.h>
+
+ soc {
+ #address-cells = <2>;
+ #size-cells = <2>;
+
+ geniqup@9c0000 {
+ compatible = "qcom,sa8255p-geni-se-qup";
+ reg = <0 0x9c0000 0 0x6000>;
+ #address-cells = <2>;
+ #size-cells = <2>;
+ ranges;
+
+ serial@990000 {
+ compatible = "qcom,sa8255p-geni-uart";
+ reg = <0 0x990000 0 0x4000>;
+ interrupts = <GIC_SPI 531 IRQ_TYPE_LEVEL_HIGH>;
+ power-domains = <&scmi0_pd 0>, <&scmi0_dvfs 0>;
+ power-domain-names = "power", "perf";
+ };
+ };
+ };
+...
--
2.17.1