From: Nikunj Kela <quic_nkela@quicinc.com>
SA8255p platform abstracts resources such as clocks, interconnect and
GPIO pins configuration in Firmware. SCMI power and perf protocols are
used to send request for resource configurations.
Add DT bindings for the QUP GENI UART controller on sa8255p platform.
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>
---
v1 -> v2
- reorder sequence of tags in commit text
- moved reg property after compatible field
- added interrupt-names property
---
.../serial/qcom,sa8255p-geni-uart.yaml | 66 +++++++++++++++++++
1 file changed, 66 insertions(+)
create mode 100644 Documentation/devicetree/bindings/serial/qcom,sa8255p-geni-uart.yaml
diff --git a/Documentation/devicetree/bindings/serial/qcom,sa8255p-geni-uart.yaml b/Documentation/devicetree/bindings/serial/qcom,sa8255p-geni-uart.yaml
new file mode 100644
index 000000000000..85ee1ecef91e
--- /dev/null
+++ b/Documentation/devicetree/bindings/serial/qcom,sa8255p-geni-uart.yaml
@@ -0,0 +1,66 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/serial/qcom,sa8255p-geni-uart.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Qualcomm Geni based QUP UART interface
+
+maintainers:
+ - Praveen Talari <quic_ptalari@quicinc.com>
+
+allOf:
+ - $ref: /schemas/serial/serial.yaml#
+
+properties:
+ compatible:
+ enum:
+ - qcom,sa8255p-geni-uart
+ - qcom,sa8255p-geni-debug-uart
+
+ reg:
+ maxItems: 1
+
+ interrupts:
+ minItems: 1
+ items:
+ - description: UART core irq
+ - description: Wakeup irq (RX GPIO)
+
+ interrupt-names:
+ description:
+ The UART interrupt and optionally the RX in-band wakeup interrupt.
+ items:
+ - const: uart
+ - const: wakeup
+
+ power-domains:
+ minItems: 2
+ maxItems: 2
+
+ power-domain-names:
+ items:
+ - const: power
+ - const: perf
+
+required:
+ - compatible
+ - interrupts
+ - reg
+ - power-domains
+ - power-domain-names
+
+unevaluatedProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/interrupt-controller/arm-gic.h>
+
+ serial@990000 {
+ compatible = "qcom,sa8255p-geni-uart";
+ reg = <0x990000 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